Spot Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
Versions:
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FNUS71 KGYX 131204
FWSGYX
Spot Forecast for ECTC PPSOW5, DAOF1 &2...NH Dept Of Military Affairs
National Weather Service Gray ME
804 AM EDT Mon May 13 2024
Forecast is based on ignition time of 0900 EDT on May 13.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact our office at (207) 688-3224, if you have questions
or concerns with this forecast.
.DISCUSSION...Partly cloudy skies are expected this morning with
very light northerly winds. Winds shift southeasterly 5 to 10 mph
by noon with relative humidities falling to between 35 and 40
percent this afternoon as cloud cover increases. Any shower
chances are expected to hold off until after 7pm. Good humidity
recovery is expected tonight with mostly cloudy skies and a few
showers. Warmer and somewhat more humid conditions are expected
for the day on Tuesday under partly cloudy skies with a wetting
rain arriving Tuesday night.
.REST OF TODAY...
Sky/weather.........Partly sunny (45-55 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 69.
Min humidity........39 percent.
Dewpoint............42.
Max apparent temp...67.
Wind (20 ft)........Light winds becoming southeast 5 to 6 mph late
in the afternoon.
Mixing height.......6900 ft AGL.
Transport winds.....West around 3 mph shifting to the southwest 3
to 10 mph late in the morning, then shifting to
the south around 13 mph late in the afternoon.
Smoke dispersal.....Poor (5500 knot-ft) early in the morning
increasing to good (57800 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................14 increasing to 48.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........36 36 36 67 67 67 67 67 67
Weather cov.....
Weather type....
Tstm cov........NO NO NO NO NO NO NO NO NO
CWR.............0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1
Temp............52 57 61 63 65 67 67 67 67
Dewpoint........43 42 42 41 41 41 42 42 43
RH..............71 57 49 44 41 39 40 40 42
Aparnt tmp (F)..52 57 61 63 65 67 67 67 67
20 FT wind dir..W SW S S S S S SE SE
20 FT wind spd..1 2 2 3 3 5 6 6 7
20 FT wind gust.3 3 5 6 8 9 10 13 14
Mix hgt (kft)...1.8 3.6 5.3 6.1 6.6 6.9 6.8 6.1 5.3
Transp wind dir.NW W SW SW SW SW S S S
Transp wind spd.3 3 3 6 6 7 9 10 13
LVORI...........4 3 2 1 1 1 1 1 1
ADI.............10 17 27 38 51 45 44 48 49
Haines index....4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..6 11 16 30 33 41 55 55 58
Ventrate Cat....PR PR PR PR PR FR FR FR FR
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent). Slight chance of
rain showers early in the evening, then chance
of rain showers in the late evening and
overnight.
CWR.................9 percent.
LAL.................1.
Min temperature.....Around 50.
Max humidity........93 percent.
Dewpoint............45 increasing to 49 overnight.
Max apparent temp...64.
Wind (20 ft)........Southeast winds 5 to 6 mph early in the evening
becoming light.
Mixing height.......500 ft AGL.
Transport winds.....South 8 to 13 mph.
Smoke dispersal.....Good (37200 knot-ft) early in the evening
decreasing to poor (3200 knot-ft) late in the
night.
LVORI...............4.
ADI.................42 decreasing to 6.
Haines Index........3 to 4 or very low potential for large plume
dominated fire growth to or low potential for
large plume dominated fire growth.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........68 68 68 68 68 68 72 72 72 72 72 72
Weather cov.....SCH SCH SCH CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
CWR.............0 0 10 10 10 10 10 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............64 61 59 58 56 55 54 54 53 53 52 52
Dewpoint........43 44 45 46 47 47 48 49 50 50 50 50
RH..............46 53 60 64 72 74 80 83 89 89 93 93
Aparnt tmp (F)..64 61 59 58 56 55 54 54 53 53 52 52
20 FT wind dir..SE SE SE SE SE SE SE SE SE SE S S
20 FT wind spd..7 7 7 6 5 3 3 3 3 3 3 3
20 FT wind gust.15 15 15 14 12 9 8 8 8 8 8 8
Mix hgt (kft)...3.4 0.8 0.6 0.6 0.5 0.6 0.5 0.5 0.5 0.6 0.6 0.6
Transp wind dir.S SE SE S S S S S S S S S
Transp wind spd.13 12 10 9 8 8 8 8 8 8 8 8
LVORI...........1 2 3 3 3 4 4 5 6 6 6 6
ADI.............42 19 7 7 6 5 4 4 4 4 4 4
Haines index....4 4 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..37 8 6 5 3 4 4 3 4 4 4 4
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
.TUESDAY...
Sky/weather.........Partly sunny (55-65 percent). Slight chance of
rain showers in the morning and early
afternoon, then chance of rain showers late in
the afternoon.
CWR.................9 percent.
LAL.................1.
Max temperature.....Around 78.
Min humidity........45 percent.
Dewpoint............52.
Max apparent temp...76.
Wind (20 ft)........Light winds becoming south 5 to 9 mph early in
the morning.
Mixing height.......6000 ft AGL.
Transport winds.....South 9 to 18 mph shifting to the southwest 21
to 23 mph late in the afternoon.
Smoke dispersal.....Poor (4800 knot-ft) early in the morning
increasing to excellent (76700 knot-ft) in the
afternoon increasing to excellent (98100
knot-ft) late in the afternoon.
LVORI...............5 early in the morning.
ADI.................8 early in the morning.
Haines Index........3 to 4 or very low potential for large plume
dominated fire growth to or low potential for
large plume dominated fire growth.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........60 60 60 60 60 60 63 63 63 63 63 63
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH CHC CHC CHC
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........NO NO NO NO NO NO NO NO NO NO NO NO
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............53 55 56 60 64 68 71 73 76 76 76 76
Dewpoint........51 51 52 52 52 53 53 53 53 53 53 53
RH..............93 86 86 75 65 59 53 49 45 45 45 45
Aparnt tmp (F)..53 55 56 60 64 68 71 73 76 76 76 76
20 FT wind dir..S S S S S S S SW SW SW SW SW
20 FT wind spd..5 5 6 7 8 9 10 10 12 12 12 12
20 FT wind gust.9 10 13 14 16 17 18 20 21 21 21 21
Mix hgt (kft)...0.6 1.1 1.2 1.5 2.1 2.8 3.6 4.8 6.0 5.7 5.4 5.2
Transp wind dir.S S S S S SW SW SW SW SW SW SW
Transp wind spd.9 12 12 12 14 15 16 18 21 22 23 22
LVORI...........5 5 M M M M M M M M M M
ADI.............7 9 M M M M M M M M M M
Haines index....3 3 4 4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..5 11 12 15 26 36 51 77 107 109 106 98
Ventrate Cat....PR PR PR PR PR PR FR GD VGD VGD VGD GD
$$
Forecaster...ARNOTT
Requested by...zachary Boyajian, Wildland Fire Program manager
Type of request...PRESCRIBED
.TAG 2413921.0/GYX
.DELDT 05/13/24
.FormatterVersion 2.0.0
.EMAIL zachary.l.boyajian.nfg@army.mil