Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pittsburgh, PA
Issued by NWS Pittsburgh, PA
737
FNUS51 KPBZ 201738
FWFPBZ
Fire Weather Planning Forecast
National Weather Service Pittsburgh PA
1238 PM EST Thu Nov 20 2025
.DISCUSSION...
Passing low pressure returns rain to the area on Friday with
highest amounts south of Pittsburgh. Light southwest wind Friday
will turn northwest on Saturday. Dry weather takes hold for most
of the weekend. An unsettled pattern returns the middle of next
week and continues through the end of the week.
OHZ039-210915-
Tuscarawas-
Including the cities of New Philadelphia and Dover
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 30 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+4) 53 (+3) 37 48
RH % (24h trend) 100 (0) 81 (+9) 98 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.14 0.22 0.00
Precip Duration 1 6
Precip Begin 6 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 400 1120
Mixing Hgt(ft-agl/msl) 1320 3670
Transport Wnd (mph) SW 7 N 10
Vent Rate (kt-ft) 11340 38890
Category Day 1 3
Inversion 6pm 48F/11am 4pm 41F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 11 Poor 4 Very Poor 32 Fair
Max ADI Late 4 Very Poor 11 Poor 8 Poor 38 Fair
Max LVORI Early 9 9 7 5
Max LVORI Late 9 5 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ040-210915-
Carroll-
Including the cities of Carrollton and Malvern
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 30 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+5) 52 (+3) 36 47
RH % (24h trend) 100 (+1) 83 (+10) 98 58
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.12 0.21 0.00
Precip Duration 1 5
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 410 1120
Mixing Hgt(ft-agl/msl) 1350 3690
Transport Wnd (mph) SW 9 N 12
Vent Rate (kt-ft) 12290 38370
Category Day 1 3
Inversion 6pm 49F/12pm 4pm 40F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 11 Poor 5 Very Poor 30 Fair
Max ADI Late 4 Very Poor 13 Gen Poor 8 Poor 43 Gen Good
Max LVORI Early 9 9 8 5
Max LVORI Late 9 5 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ041-210915-
Columbiana-
Including the cities of East Liverpool, Salem, and Columbiana
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 20 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 37 (+5) 52 (+4) 35 47
RH % (24h trend) 100 (+2) 82 (+9) 97 58
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.09 0.18 0.00
Precip Duration 1 5
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 450 1150
Mixing Hgt(ft-agl/msl) 1490 3780
Transport Wnd (mph) SW 9 N 12
Vent Rate (kt-ft) 13990 40130
Category Day 1 3
Inversion 6pm 48F/11am 5pm 39F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 12 Poor 5 Very Poor 30 Fair
Max ADI Late 4 Very Poor 16 Gen Poor 9 Poor 45 Gen Good
Max LVORI Early 9 9 7 5
Max LVORI Late 9 5 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ048-210915-
Coshocton-
Including the city of Coshocton
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 30 70 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+4) 53 (+3) 37 48
RH % (24h trend) 100 (0) 82 (+8) 98 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.18 0.21 0.00
Precip Duration 1 6
Precip Begin 6 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 370 1030
Mixing Hgt(ft-agl/msl) 1200 3370
Transport Wnd (mph) SW 6 N 9
Vent Rate (kt-ft) 8320 34220
Category Day 1 3
Inversion 6pm 50F/12pm 4pm 41F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 8 Poor 4 Very Poor 35 Fair
Max ADI Late 3 Very Poor 8 Poor 8 Poor 35 Fair
Max LVORI Early 9 9 8 5
Max LVORI Late 9 6 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ049-210915-
Harrison-
Including the city of Cadiz
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+4) 54 (+4) 37 49
RH % (24h trend) 100 (0) 80 (+8) 99 55
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.14 0.26 0.02
Precip Duration 1 7 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 370 970
Mixing Hgt(ft-agl/msl) 1220 3190
Transport Wnd (mph) SW 8 N 9
Vent Rate (kt-ft) 9360 26630
Category Day 1 2
Inversion 6pm 48F/11am 4pm 41F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 10 Poor 4 Very Poor 36 Fair
Max ADI Late 3 Very Poor 11 Poor 8 Poor 35 Fair
Max LVORI Early 9 9 8 5
Max LVORI Late 9 5 7 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ050-210915-
Jefferson OH-
Including the city of Steubenville
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 70 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+4) 54 (+5) 38 48
RH % (24h trend) 100 (0) 78 (+6) 95 54
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.13 0.26 0.02
Precip Duration 1 6 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 410 1020
Mixing Hgt(ft-agl/msl) 1340 3340
Transport Wnd (mph) SW 8 N 10
Vent Rate (kt-ft) 12180 35650
Category Day 1 3
Inversion 6pm 50F/12pm 4pm 41F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 9 Poor 4 Very Poor 30 Fair
Max ADI Late 3 Very Poor 11 Poor 8 Poor 35 Fair
Max LVORI Early 8 9 6 5
Max LVORI Late 9 4 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ057-210915-
Muskingum-
Including the city of Zanesville
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 40 80 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+2) 54 (+3) 39 50
RH % (24h trend) 100 (0) 84 (+9) 100 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.19 0.27 0.00
Precip Duration 2 7
Precip Begin 6 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 320 980
Mixing Hgt(ft-agl/msl) 1050 3230
Transport Wnd (mph) SW 6 N 8
Vent Rate (kt-ft) 6150 26820
Category Day 1 2
Inversion 6pm Continuing 6pm 43F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 5 Very Poor 3 Very Poor 35 Fair
Max ADI Late 3 Very Poor 6 Very Poor 8 Poor 37 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 6 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ058-210915-
Guernsey-
Including the city of Cambridge
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 80 10
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+3) 55 (+4) 38 50
RH % (24h trend) 100 (0) 81 (+8) 100 55
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.17 0.28 0.01
Precip Duration 1 7 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 330 980
Mixing Hgt(ft-agl/msl) 1090 3210
Transport Wnd (mph) SW 6 N 9
Vent Rate (kt-ft) 5900 26360
Category Day 1 2
Inversion 6pm 53F/1pm 4pm 42F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 7 Poor 3 Very Poor 33 Fair
Max ADI Late 3 Very Poor 7 Poor 8 Poor 35 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 6 9 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ059-210915-
Belmont-
Including the cities of Martins Ferry and St. Clairsville
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+3) 55 (+5) 39 50
RH % (24h trend) 100 (0) 80 (+4) 99 56
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.16 0.30 0.02
Precip Duration 2 7 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 330 970
Mixing Hgt(ft-agl/msl) 1090 3190
Transport Wnd (mph) SW 6 N 9
Vent Rate (kt-ft) 7230 26570
Category Day 1 2
Inversion 6pm Continuing 6pm 43F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 7 Poor 4 Very Poor 36 Fair
Max ADI Late 3 Very Poor 7 Poor 7 Poor 37 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 7 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ068-210915-
Noble-
Including the city of Caldwell
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+2) 55 (+4) 40 51
RH % (24h trend) 100 (0) 84 (+8) 100 58
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.22 0.33 0.03
Precip Duration 2 7 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 290 950
Mixing Hgt(ft-agl/msl) 960 3110
Transport Wnd (mph) SW 6 N 9
Vent Rate (kt-ft) 5370 25120
Category Day 1 2
Inversion 6pm Continuing 6pm 44F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 5 Very Poor 3 Very Poor 33 Fair
Max ADI Late 3 Very Poor 5 Very Poor 6 Very Poor 31 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 6 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
OHZ069-210915-
Monroe-
Including the city of Woodsfield
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 90 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 40 (+2) 56 (+5) 41 52
RH % (24h trend) 100 (+1) 83 (+7) 99 56
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.22 0.35 0.03
Precip Duration 2 8 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 290 940
Mixing Hgt(ft-agl/msl) 960 3090
Transport Wnd (mph) SW 6 N 8
Vent Rate (kt-ft) 6680 27760
Category Day 1 2
Inversion 6pm Continuing 6pm 45F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 4 Very Poor 4 Very Poor 34 Fair
Max ADI Late 3 Very Poor 5 Very Poor 6 Very Poor 32 Fair
Max LVORI Early 9 9 8 5
Max LVORI Late 9 6 8 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ007-210915-
Mercer-
Including the cities of Sharon, Hermitage, and Grove City
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None None Rain None
Chance Precip (%) 0 0 40 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 35 (+6) 52 (+5) 32 45
RH % (24h trend) 100 (0) 80 (+11) 100 60
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var SW 5 Lgt/Var N 6
Precip Amount 0.00 0.00 0.09 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt(m-agl/msl) 590 1170
Mixing Hgt(ft-agl/msl) 1930 3850
Transport Wnd (mph) SW 13 N 12
Vent Rate (kt-ft) 25160 41450
Category Day 2 3
Inversion 6pm 47F/11am 5pm 36F/4am
Dispersion 5 5
Max ADI Early 4 Very Poor 19 Gen Poor 5 Very Poor 32 Fair
Max ADI Late 5 Very Poor 25 Fair 9 Poor 46 Gen Good
Max LVORI Early 9 8 9 5
Max LVORI Late 9 5 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ008-210915-
Venango-
Including the cities of Oil City and Franklin
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None None Rain None
Chance Precip (%) 0 0 40 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 35 (+7) 51 (+4) 32 44
RH % (24h trend) 100 (0) 82 (+13) 100 61
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.09 0.00
Precip Duration 2
Precip Begin 7 PM
Precip End 6 AM
Mixing Hgt(m-agl/msl) 610 1200
Mixing Hgt(ft-agl/msl) 2010 3930
Transport Wnd (mph) SW 14 N 12
Vent Rate (kt-ft) 28340 45270
Category Day 2 3
Inversion 6pm 44F/10am 5pm 35F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 19 Gen Poor 5 Very Poor 33 Fair
Max ADI Late 5 Very Poor 25 Fair 8 Poor 48 Gen Good
Max LVORI Early 9 8 9 5
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ009-210915-
Forest-
Including the city of Tionesta
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None None Rain None
Chance Precip (%) 0 0 30 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 34 (+7) 50 (+3) 31 44
RH % (24h trend) 100 (+2) 78 (+13) 99 58
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.08 0.00
Precip Duration 2
Precip Begin 7 PM
Precip End 6 AM
Mixing Hgt(m-agl/msl) 660 1190
Mixing Hgt(ft-agl/msl) 2160 3900
Transport Wnd (mph) SW 15 N 14
Vent Rate (kt-ft) 35240 54110
Category Day 3 3
Inversion 6pm 43F/10am 5pm 35F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 22 Fair 4 Very Poor 35 Fair
Max ADI Late 4 Very Poor 26 Fair 6 Very Poor 50 Gen Good
Max LVORI Early 9 8 9 5
Max LVORI Late 9 4 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ013-210915-
Lawrence-
Including the cities of New Castle and Ellwood City
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 20 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 35 (+6) 53 (+4) 33 47
RH % (24h trend) 100 (0) 80 (+10) 100 58
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.07 0.14 0.00
Precip Duration 1 2
Precip Begin 12 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 540 1190
Mixing Hgt(ft-agl/msl) 1770 3910
Transport Wnd (mph) SW 9 N 12
Vent Rate (kt-ft) 20090 42090
Category Day 2 3
Inversion 6pm 47F/11am 5pm 37F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 14 Gen Poor 4 Very Poor 31 Fair
Max ADI Late 4 Very Poor 17 Gen Poor 6 Very Poor 46 Gen Good
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ014-210915-
Butler-
Including the city of Butler
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 20 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 35 (+6) 52 (+4) 32 47
RH % (24h trend) 100 (0) 84 (+10) 100 60
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var NW 5
Precip Amount 0.00 0.08 0.17 0.00
Precip Duration 1 5
Precip Begin 12 PM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 510 1190
Mixing Hgt(ft-agl/msl) 1680 3900
Transport Wnd (mph) SW 10 N 12
Vent Rate (kt-ft) 23960 41090
Category Day 2 3
Inversion 6pm 47F/11am 5pm 37F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 13 Gen Poor 4 Very Poor 31 Fair
Max ADI Late 4 Very Poor 16 Gen Poor 6 Very Poor 45 Gen Good
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ015-210915-
Clarion-
Including the city of Clarion
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None None Rain None
Chance Precip (%) 0 0 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 35 (+6) 51 (+4) 33 45
RH % (24h trend) 100 (0) 80 (+9) 99 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.00 0.14 0.00
Precip Duration 2
Precip Begin 7 PM
Precip End 6 AM
Mixing Hgt(m-agl/msl) 620 1180
Mixing Hgt(ft-agl/msl) 2040 3870
Transport Wnd (mph) SW 13 N 13
Vent Rate (kt-ft) 26400 48730
Category Day 2 3
Inversion 6pm 44F/10am 5pm 36F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 19 Gen Poor 4 Very Poor 34 Fair
Max ADI Late 4 Very Poor 25 Fair 6 Very Poor 48 Gen Good
Max LVORI Early 9 8 8 5
Max LVORI Late 9 4 8 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ016-210915-
Jefferson PA-
Including the cities of Punxsutawney and Brookville
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None None Rain None
Chance Precip (%) 0 0 50 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 36 (+7) 51 (+5) 33 44
RH % (24h trend) 100 (0) 78 (+6) 97 56
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var SW 5 Lgt/Var NW 5
Precip Amount 0.00 0.00 0.17 0.00
Precip Duration 2
Precip Begin 6 PM
Precip End 6 AM
Mixing Hgt(m-agl/msl) 620 1120
Mixing Hgt(ft-agl/msl) 2050 3660
Transport Wnd (mph) SW 14 NW 13
Vent Rate (kt-ft) 32980 48340
Category Day 2 3
Inversion 6pm 44F/10am 5pm 37F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 20 Gen Poor 5 Very Poor 32 Fair
Max ADI Late 4 Very Poor 26 Fair 8 Poor 43 Gen Good
Max LVORI Early 7 8 6 5
Max LVORI Late 9 4 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ020-210915-
Beaver-
Including the cities of Aliquippa, Beaver Falls, Ambridge,
and Monaca
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain None
Chance Precip (%) 0 20 60 0
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 37 (+5) 53 (+5) 35 47
RH % (24h trend) 100 (0) 80 (+7) 98 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.10 0.20 0.00
Precip Duration 1 5
Precip Begin 11 AM Continuing
Precip End Continuing 6 AM
Mixing Hgt(m-agl/msl) 470 1180
Mixing Hgt(ft-agl/msl) 1540 3860
Transport Wnd (mph) SW 8 N 12
Vent Rate (kt-ft) 16240 41660
Category Day 1 3
Inversion 6pm 48F/11am 4pm 40F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 11 Poor 3 Very Poor 30 Fair
Max ADI Late 3 Very Poor 13 Gen Poor 5 Very Poor 44 Gen Good
Max LVORI Early 9 9 7 5
Max LVORI Late 9 5 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ021-210915-
Allegheny-
Including the city of Pittsburgh Metro Area
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 70 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 37 (+4) 55 (+7) 38 48
RH % (24h trend) 100 (0) 81 (+3) 100 59
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.12 0.26 0.02
Precip Duration 1 6 1
Precip Begin 8 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 490 1140
Mixing Hgt(ft-agl/msl) 1600 3740
Transport Wnd (mph) SW 9 N 10
Vent Rate (kt-ft) 16990 38220
Category Day 1 3
Inversion 6pm 47F/10am 4pm 41F/4am
Dispersion 5 5
Max ADI Early 2 Very Poor 13 Gen Poor 3 Very Poor 28 Fair
Max ADI Late 3 Very Poor 15 Gen Poor 8 Poor 37 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ022-210915-
Armstrong-
Including the cities of Kittanning and Ford City
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 20 60 10
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 36 (+7) 54 (+6) 34 47
RH % (24h trend) 100 (0) 82 (+4) 100 59
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var NW 5
Precip Amount 0.00 0.08 0.20 0.01
Precip Duration 1 5 1
Precip Begin 12 PM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 590 1180
Mixing Hgt(ft-agl/msl) 1940 3860
Transport Wnd (mph) SW 10 N 12
Vent Rate (kt-ft) 23060 43380
Category Day 2 3
Inversion 6pm 45F/10am 5pm 39F/4am
Dispersion 5 5
Max ADI Early 2 Very Poor 16 Gen Poor 3 Very Poor 31 Fair
Max ADI Late 3 Very Poor 19 Gen Poor 5 Very Poor 44 Gen Good
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ029-210915-
Washington-
Including the cities of Washington and Canonsburg
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+4) 55 (+7) 38 48
RH % (24h trend) 100 (0) 81 (+2) 99 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 6
Precip Amount 0.00 0.14 0.30 0.02
Precip Duration 2 7 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 420 1000
Mixing Hgt(ft-agl/msl) 1370 3270
Transport Wnd (mph) SW 8 N 9
Vent Rate (kt-ft) 15090 32530
Category Day 1 3
Inversion 6pm 49F/11am 4pm 42F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 10 Poor 3 Very Poor 29 Fair
Max ADI Late 3 Very Poor 11 Poor 8 Poor 37 Fair
Max LVORI Early 9 9 7 5
Max LVORI Late 9 5 7 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ031-210915-
Greene-
Including the city of Waynesburg
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 90 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+3) 55 (+6) 40 49
RH % (24h trend) 100 (0) 87 (+2) 100 62
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.17 0.38 0.04
Precip Duration 2 10 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 320 950
Mixing Hgt(ft-agl/msl) 1040 3110
Transport Wnd (mph) SW 7 N 9
Vent Rate (kt-ft) 8130 29650
Category Day 1 2
Inversion 6pm Continuing 6pm 44F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 8 Poor 3 Very Poor 26 Fair
Max ADI Late 3 Very Poor 8 Poor 6 Very Poor 35 Fair
Max LVORI Early 9 9 8 5
Max LVORI Late 9 6 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ073-210915-
Westmoreland-
Including the cities of Murrysville, Greensburg, New Kensington,
Lower Burrell, Latrobe, and Monessen
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+6) 55 (+7) 38 49
RH % (24h trend) 100 (0) 81 (-1) 100 60
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var NW 5
Precip Amount 0.00 0.12 0.29 0.02
Precip Duration 2 7 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 550 1090
Mixing Hgt(ft-agl/msl) 1810 3590
Transport Wnd (mph) SW 10 NW 9
Vent Rate (kt-ft) 18190 33190
Category Day 2 3
Inversion 6pm 48F/10am 4pm 42F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 16 Gen Poor 3 Very Poor 27 Fair
Max ADI Late 4 Very Poor 17 Gen Poor 8 Poor 38 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ074-210915-
Higher Elevations of Westmoreland-
Including the cities of Ligonier and Donegal
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+6) 56 (+8) 39 48
RH % (24h trend) 99 (-1) 71 (-5) 98 54
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var NW 5
Precip Amount 0.00 0.13 0.34 0.03
Precip Duration 2 7 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 570 1010
Mixing Hgt(ft-agl/msl) 1870 3300
Transport Wnd (mph) SW 10 NW 12
Vent Rate (kt-ft) 19400 38750
Category Day 2 3
Inversion 6pm 50F/11am 4pm 43F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 16 Gen Poor 3 Very Poor 23 Fair
Max ADI Late 4 Very Poor 17 Gen Poor 6 Very Poor 34 Fair
Max LVORI Early 7 7 6 5
Max LVORI Late 8 4 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ075-210915-
Fayette-
Including the city of Uniontown
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+4) 56 (+6) 40 49
RH % (24h trend) 100 (0) 84 (0) 100 62
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.15 0.39 0.04
Precip Duration 2 9 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 400 990
Mixing Hgt(ft-agl/msl) 1320 3250
Transport Wnd (mph) SW 8 N 9
Vent Rate (kt-ft) 13190 27500
Category Day 1 2
Inversion 6pm 50F/10am 4pm 45F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 11 Poor 3 Very Poor 25 Fair
Max ADI Late 3 Very Poor 11 Poor 5 Very Poor 30 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 6 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ076-210915-
Higher Elevations of Fayette-
Including the cities of Champion and Ohiopyle
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 90 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+5) 55 (+7) 39 48
RH % (24h trend) 100 (0) 79 (-2) 100 60
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.17 0.45 0.05
Precip Duration 2 11 2
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 380 850
Mixing Hgt(ft-agl/msl) 1260 2790
Transport Wnd (mph) SW 9 NW 10
Vent Rate (kt-ft) 13640 31290
Category Day 1 3
Inversion 6pm Continuing 6pm 43F/4am
Dispersion 4 5
Max ADI Early 4 Very Poor 11 Poor 3 Very Poor 22 Fair
Max ADI Late 4 Very Poor 12 Poor 5 Very Poor 30 Fair
Max LVORI Early 9 8 7 6
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ077-210915-
Indiana-
Including the city of Indiana
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 20 60 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 37 (+8) 54 (+7) 36 48
RH % (24h trend) 100 (0) 80 (+1) 100 58
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var NW 5
Precip Amount 0.00 0.08 0.22 0.02
Precip Duration 1 6 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 570 1060
Mixing Hgt(ft-agl/msl) 1880 3480
Transport Wnd (mph) SW 12 NW 12
Vent Rate (kt-ft) 23620 39110
Category Day 2 3
Inversion 6pm 46F/10am 4pm 41F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 18 Gen Poor 4 Very Poor 30 Fair
Max ADI Late 4 Very Poor 20 Gen Poor 5 Very Poor 41 Gen Good
Max LVORI Early 9 9 7 5
Max LVORI Late 9 4 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
PAZ078-210915-
Higher Elevations of Indiana-
Including the city of Armagh
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 70 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+10) 54 (+7) 37 47
RH % (24h trend) 100 (0) 77 (-2) 96 57
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var NW 5
Precip Amount 0.00 0.09 0.25 0.02
Precip Duration 1 6 1
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 520 1010
Mixing Hgt(ft-agl/msl) 1700 3300
Transport Wnd (mph) SW 10 NW 13
Vent Rate (kt-ft) 19660 38670
Category Day 2 3
Inversion 6pm 48F/11am 4pm 42F/4am
Dispersion 5 5
Max ADI Early 3 Very Poor 16 Gen Poor 4 Very Poor 28 Fair
Max ADI Late 4 Very Poor 17 Gen Poor 8 Poor 39 Fair
Max LVORI Early 8 8 6 5
Max LVORI Late 8 4 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ001-210915-
Hancock-
Including the city of Weirton
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 30 70 10
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 38 (+4) 53 (+5) 38 47
RH % (24h trend) 99 (-1) 79 (+7) 94 55
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.12 0.23 0.01
Precip Duration 1 6 1
Precip Begin 11 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 430 1100
Mixing Hgt(ft-agl/msl) 1420 3610
Transport Wnd (mph) SW 8 N 10
Vent Rate (kt-ft) 11350 38550
Category Day 1 3
Inversion 6pm 50F/12pm 4pm 41F/4am
Dispersion 4 5
Max ADI Early 2 Very Poor 10 Poor 3 Very Poor 29 Fair
Max ADI Late 3 Very Poor 12 Poor 8 Poor 42 Gen Good
Max LVORI Early 7 9 6 5
Max LVORI Late 9 5 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ002-210915-
Brooke-
Including the cities of Follansbee and Wellsburg
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+4) 55 (+6) 39 48
RH % (24h trend) 99 (0) 78 (+5) 93 54
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.14 0.28 0.02
Precip Duration 1 7 1
Precip Begin 10 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 430 1020
Mixing Hgt(ft-agl/msl) 1420 3340
Transport Wnd (mph) SW 7 N 9
Vent Rate (kt-ft) 11190 26850
Category Day 1 3
Inversion 6pm 49F/11am 4pm 43F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 9 Poor 3 Very Poor 38 Fair
Max ADI Late 3 Very Poor 10 Poor 7 Poor 35 Fair
Max LVORI Early 6 8 6 5
Max LVORI Late 8 4 6 2
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ003-210915-
Ohio-
Including the city of Wheeling
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 80 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 40 (+4) 54 (+5) 40 49
RH % (24h trend) 100 (+1) 81 (+4) 95 55
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.14 0.29 0.02
Precip Duration 2 7 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 350 980
Mixing Hgt(ft-agl/msl) 1130 3230
Transport Wnd (mph) SW 6 N 9
Vent Rate (kt-ft) 7460 26330
Category Day 1 2
Inversion 6pm Continuing 6pm 44F/4am
Dispersion 3 5
Max ADI Early 2 Very Poor 8 Poor 4 Very Poor 36 Fair
Max ADI Late 3 Very Poor 7 Poor 7 Poor 34 Fair
Max LVORI Early 8 9 7 5
Max LVORI Late 9 5 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ004-210915-
Marshall-
Including the city of Moundsville
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 40 90 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+3) 55 (+5) 41 51
RH % (24h trend) 100 (+1) 86 (+4) 97 59
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.18 0.34 0.03
Precip Duration 2 10 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 330 970
Mixing Hgt(ft-agl/msl) 1070 3190
Transport Wnd (mph) SW 6 N 9
Vent Rate (kt-ft) 7280 27830
Category Day 1 2
Inversion 6pm Continuing 6pm 45F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 7 Poor 4 Very Poor 35 Fair
Max ADI Late 3 Very Poor 7 Poor 6 Very Poor 34 Fair
Max LVORI Early 9 9 7 5
Max LVORI Late 9 6 7 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ012-210915-
Wetzel-
Including the city of New Martinsville
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+2) 55 (+5) 42 51
RH % (24h trend) 100 (+1) 90 (+5) 99 62
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.25 0.40 0.04
Precip Duration 2 11 1
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 290 940
Mixing Hgt(ft-agl/msl) 950 3070
Transport Wnd (mph) SW 6 N 8
Vent Rate (kt-ft) 5740 25270
Category Day 1 2
Inversion 6pm Continuing 6pm 46F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 5 Very Poor 4 Very Poor 25 Fair
Max ADI Late 3 Very Poor 5 Very Poor 5 Very Poor 30 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 7 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ021-210915-
Marion-
Including the city of Fairmont
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+2) 56 (+6) 42 51
RH % (24h trend) 100 (+1) 90 (+3) 100 63
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.26 0.44 0.06
Precip Duration 2 11 2
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 290 920
Mixing Hgt(ft-agl/msl) 960 3030
Transport Wnd (mph) SW 6 N 8
Vent Rate (kt-ft) 6630 23980
Category Day 1 2
Inversion 6pm Continuing 6pm 46F/4am
Dispersion 3 5
Max ADI Early 3 Very Poor 5 Very Poor 4 Very Poor 23 Fair
Max ADI Late 3 Very Poor 7 Poor 5 Very Poor 28 Fair
Max LVORI Early 9 9 9 6
Max LVORI Late 9 6 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ509-210915-
Monongalia-
Including the city of Morgantown
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 40 (+2) 56 (+6) 42 50
RH % (24h trend) 100 (0) 88 (+2) 100 63
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var N 5
Precip Amount 0.00 0.22 0.44 0.05
Precip Duration 2 11 2
Precip Begin 6 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 360 950
Mixing Hgt(ft-agl/msl) 1170 3100
Transport Wnd (mph) SW 6 N 8
Vent Rate (kt-ft) 10370 26480
Category Day 1 2
Inversion 6pm Continuing 6pm 46F/4am
Dispersion 4 5
Max ADI Early 3 Very Poor 6 Very Poor 4 Very Poor 23 Fair
Max ADI Late 3 Very Poor 8 Poor 6 Very Poor 29 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 6 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ510-210915-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the city of Coopers Rock
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+3) 55 (+7) 40 49
RH % (24h trend) 100 (0) 87 (+1) 100 63
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.25 0.54 0.06
Precip Duration 2 11 2
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 280 780
Mixing Hgt(ft-agl/msl) 930 2570
Transport Wnd (mph) SW 8 N 9
Vent Rate (kt-ft) 10400 25220
Category Day 1 2
Inversion 6pm Continuing 6pm 45F/4am
Dispersion 4 5
Max ADI Early 4 Very Poor 9 Poor 4 Very Poor 20 Gen Poor
Max ADI Late 4 Very Poor 9 Poor 6 Very Poor 28 Fair
Max LVORI Early 9 9 9 6
Max LVORI Late 9 6 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ511-210915-
Preston-
Including the cities of Kingwood and Bruceton Mills
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 60 90 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+3) 57 (+7) 41 51
RH % (24h trend) 100 (0) 84 (0) 100 61
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.25 0.49 0.07
Precip Duration 3 11 2
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 390 850
Mixing Hgt(ft-agl/msl) 1260 2800
Transport Wnd (mph) SW 8 NW 9
Vent Rate (kt-ft) 13600 26530
Category Day 1 2
Inversion 6pm 51F/11am 4pm 45F/4am
Dispersion 4 5
Max ADI Early 4 Very Poor 10 Poor 4 Very Poor 24 Fair
Max ADI Late 4 Very Poor 11 Poor 5 Very Poor 28 Fair
Max LVORI Early 9 9 9 5
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ512-210915-
Eastern Preston-
Including the cities of Terra Alta, Rowlesburg, and Hazelton
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 50 90 30
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+3) 56 (+8) 42 50
RH % (24h trend) 100 (0) 84 (-3) 100 61
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.27 0.52 0.07
Precip Duration 2 11 2
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 340 750
Mixing Hgt(ft-agl/msl) 1130 2470
Transport Wnd (mph) SW 10 NW 10
Vent Rate (kt-ft) 13580 25100
Category Day 1 2
Inversion 6pm Continuing 6pm 44F/8am
Dispersion 4 5
Max ADI Early 4 Very Poor 11 Poor 6 Very Poor 21 Fair
Max ADI Late 5 Very Poor 12 Poor 8 Poor 26 Fair
Max LVORI Early 9 8 8 5
Max LVORI Late 8 5 8 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ513-210915-
Western Tucker-
Including the cities of Parsons, Hendricks, and Saint George
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 60 90 40
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 41 (+2) 58 (+7) 43 53
RH % (24h trend) 100 (+1) 77 (-2) 100 56
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.00 0.33 0.50 0.08
Precip Duration 4 12 2
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 1 PM
Mixing Hgt(m-agl/msl) 400 820
Mixing Hgt(ft-agl/msl) 1320 2690
Transport Wnd (mph) SW 9 NW 10
Vent Rate (kt-ft) 14360 29860
Category Day 1 3
Inversion 6pm Continuing 6pm 47F/9am
Dispersion 4 5
Max ADI Early 4 Very Poor 10 Poor 6 Very Poor 21 Fair
Max ADI Late 4 Very Poor 12 Poor 8 Poor 27 Fair
Max LVORI Early 9 8 8 7
Max LVORI Late 9 5 9 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
WVZ514-210915-
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
1238 PM EST Thu Nov 20 2025
Tonight Fri Fri Night Sat
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type None Rain Rain Rain
Chance Precip (%) 0 60 90 40
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 39 (+2) 55 (+8) 41 50
RH % (24h trend) 100 (0) 85 (-5) 100 65
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var W 5 Lgt/Var
Precip Amount 0.00 0.31 0.49 0.09
Precip Duration 4 12 3
Precip Begin 7 AM Continuing Continuing
Precip End Continuing Continuing 6 PM
Mixing Hgt(m-agl/msl) 320 730
Mixing Hgt(ft-agl/msl) 1060 2410
Transport Wnd (mph) SW 12 NW 13
Vent Rate (kt-ft) 13680 31120
Category Day 1 3
Inversion 6pm Continuing 6pm 45F/10am
Dispersion 4 5
Max ADI Early 6 Very Poor 12 Poor 10 Poor 26 Fair
Max ADI Late 6 Very Poor 14 Gen Poor 14 Gen Poor 25 Fair
Max LVORI Early 9 7 8 5
Max LVORI Late 8 6 6 3
Remarks...ADI is Atmospheric Dispersion Index by Lavdas.
LVORI is Low Visibility Occurrence Risk Index.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Patchy fog through the night. Lows in the
upper 20s. Highs in the lower 50s. Light winds.
.MONDAY...Partly cloudy. Lows in the lower 30s. Highs in the
lower 50s. Southwest winds 5 to 10 mph.
.TUESDAY...Mostly cloudy with rain likely. Lows in the upper 30s.
Highs in the mid 50s. South winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy with rain likely. Lows in the mid 40s.
Highs in the mid 50s. Southwest winds 10 to 15 mph.
.THURSDAY...Mostly cloudy. A chance of rain. Colder. Lows in the
lower 30s. Highs in the lower 40s. West winds 10 to 15 mph.
$$
MLB