Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
390
FNCA52 TJSJ 130729
FWFSJU
Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
329 AM AST Thu Nov 13 2025
.DISCUSSION...
A small patch of moisture will move across the islands today,
maintaining relative humidities around 60%. Winds will be from the
east at 15 mph. The risk of fire spreading is low for today.
PRZ014-140730-
Southeast Coastal Plains-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 20 0 40
Temp (24h trend) 88 (+1) 72 (-2) 88
RH % (24h trend) 62 (+6) 92 (+3) 56
Wind 20ft/early(mph) E 16 G21 NE 10 SE 12
Wind 20ft/late(mph) E 16 G21 NE 10 SE 12
Mixing Hgt(ft-agl/msl)4730 4740
Transport Wnd (mph) E 12 E 8
Vent Rate (kt-ft) 47300 33180
Dispersion 5 5
DSI 6 2 5
RH Recovery Excellent
Remarks...None.
$$
PRZ015-140730-
Southern Hills-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 30 30 60
Temp (24h trend) 86 (+3) 68 (-4) 85
RH % (24h trend) 63 (-4) 96 (+4) 59
Wind 20ft/early(mph) E 11 E 9 SE 10
Wind 20ft/late(mph) E 11 E 9 SE 10
Mixing Hgt(ft-agl/msl)5430 5510
Transport Wnd (mph) E 12 E 6
Vent Rate (kt-ft) 54300 27550
Dispersion 5 5
DSI 5 2 5
RH Recovery Excellent
Remarks...None.
$$
PRZ016-140730-
North Coastal Plains-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 50 40 20
Temp (24h trend) 87 (+2) 72 (-2) 89
RH % (24h trend) 65 (-6) 95 (+1) 58
Wind 20ft/early(mph) E 14 G17 E 12 E 11
Wind 20ft/late(mph) E 14 G17 E 12 E 11
Mixing Hgt(ft-agl/msl)4700 4510
Transport Wnd (mph) E 13 E 7
Vent Rate (kt-ft) 51700 27060
Dispersion 5 5
DSI 6 4 5
RH Recovery Excellent
Remarks...None.
$$
PRZ017-140730-
Northern Hills-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Tstms
Chance Precip (%) 50 40 50
Temp (24h trend) 86 (+2) 68 (-4) 87
RH % (24h trend) 67 (-2) 96 (+1) 58
Wind 20ft/early(mph) E 12 E 10 NE 9
Wind 20ft/late(mph) E 12 E 10 NE 9
Mixing Hgt(ft-agl/msl)5180 5340
Transport Wnd (mph) E 10 NE 5
Vent Rate (kt-ft) 46620 21360
Dispersion 5 5
DSI 5 3 5
RH Recovery Excellent
Remarks...None.
$$
PRZ018-140730-
West Coast-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Showers
Chance Precip (%) 60 60 70
Temp (24h trend) 89 (+1) 70 (-2) 89
RH % (24h trend) 62 (-5) 96 (+3) 60
Wind 20ft/early(mph) E 11 E 11 SE 10
Wind 20ft/late(mph) E 11 E 11 SE 10
Mixing Hgt(ft-agl/msl)4690 4420
Transport Wnd (mph) E 7 SE 5
Vent Rate (kt-ft) 28140 17680
Dispersion 5 5
DSI 5 3 5
RH Recovery Excellent
Remarks...None.
$$
PRZ019-140730-
Eastern Interior-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 40 40 20
Temp (24h trend) 86 (+2) 69 (-4) 89
RH % (24h trend) 66 (-2) 97 (+1) 57
Wind 20ft/early(mph) E 10 E 9 SE 8
Wind 20ft/late(mph) E 10 E 9 SE 8
Mixing Hgt(ft-agl/msl)5150 5880
Transport Wnd (mph) E 10 SE 6
Vent Rate (kt-ft) 46350 29400
Dispersion 5 5
DSI 5 2 5
RH Recovery Excellent
Remarks...None.
$$
PRZ022-140730-
Luquillo Mountain Range-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Mclear
Precip Type Tstms Showers Showers
Chance Precip (%) 50 40 20
Temp (24h trend) 82 (+3) 67 (-4) 84
RH % (24h trend) 72 (-5) 100 (+1) 61
Wind 20ft/early(mph) E 9 E 6 SE 6
Wind 20ft/late(mph) E 9 E 6 SE 6
Mixing Hgt(ft-agl/msl)3630 4130
Transport Wnd (mph) E 12 SE 7
Vent Rate (kt-ft) 36300 24780
Dispersion 5 5
DSI 6 3 5
RH Recovery Excellent
Remarks...None.
$$
PRZ023-140730-
Central Mountain Range-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Tstms
Chance Precip (%) 60 50 70
Temp (24h trend) 84 (+4) 66 (-4) 85
RH % (24h trend) 66 (-5) 96 (+2) 62
Wind 20ft/early(mph) E 8 E 8 SE 6
Wind 20ft/late(mph) E 8 E 8 SE 6
Mixing Hgt(ft-agl/msl)5860 6710
Transport Wnd (mph) E 9 E 3
Vent Rate (kt-ft) 46880 20130
Dispersion 5 5
DSI 5 1 5
RH Recovery Excellent
Remarks...None.
$$
PRZ024-140730-
Cayey Mountain Range-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 30 20 10
Temp (24h trend) 82 (+2) 68 (-3) 84
RH % (24h trend) 69 (-2) 99 (+2) 62
Wind 20ft/early(mph) E 9 E 6 SE 8
Wind 20ft/late(mph) E 9 E 6 SE 8
Mixing Hgt(ft-agl/msl)4280 4680
Transport Wnd (mph) E 12 E 7
Vent Rate (kt-ft) 42800 28080
Dispersion 5 5
DSI 6 2 5
RH Recovery Excellent
Remarks...None.
$$
PRZ025-140730-
Vieques-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 30 30
Temp (24h trend) 87 (0) 73 (-3) 89
RH % (24h trend) 63 (-1) 96 (+5) 55
Wind 20ft/early(mph) E 11 E 12 E 6
Wind 20ft/late(mph) E 11 E 12 E 6
Mixing Hgt(ft-agl/msl)3260 3590
Transport Wnd (mph) E 16 E 10
Vent Rate (kt-ft) 45640 32310
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ026-140730-
Culebra-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 40 30
Temp (24h trend) 89 (+1) 73 (-3) 90
RH % (24h trend) 60 (-6) 96 (+1) 54
Wind 20ft/early(mph) E 11 E 11 SE 8
Wind 20ft/late(mph) E 11 E 11 SE 8
Mixing Hgt(ft-agl/msl)3210 3460
Transport Wnd (mph) E 16 E 10
Vent Rate (kt-ft) 44940 31140
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ027-140730-
Southwest Coastal Plains and Mona Island-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 20 10 40
Temp (24h trend) 89 (+1) 72 (-2) 89
RH % (24h trend) 58 (+2) 92 (+3) 57
Wind 20ft/early(mph) E 17 G22 E 11 SE 14 G19
Wind 20ft/late(mph) E 17 G22 E 11 SE 14 G19
Mixing Hgt(ft-agl/msl)5320 4930
Transport Wnd (mph) E 10 SE 10
Vent Rate (kt-ft) 47880 44370
Dispersion 5 5
DSI 5 3 5
RH Recovery Excellent
Remarks...None.
$$
VIZ001-140730-
Saint Thomas and Saint John-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Mclear Mclear Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 20 40 30
Temp (24h trend) 86 (+2) 70 (-5) 86
RH % (24h trend) 66 (-7) 100 (+4) 59
Wind 20ft/early(mph) E 11 E 12 E 6
Wind 20ft/late(mph) E 11 E 12 E 6
Mixing Hgt(ft-agl/msl)3180 3490
Transport Wnd (mph) E 14 E 12
Vent Rate (kt-ft) 38160 34900
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
VIZ002-140730-
St Croix-
329 AM AST Thu Nov 13 2025
Today Tonight Fri
Cloud Cover Pcldy Mclear Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 10 30
Temp (24h trend) 89 (+1) 73 (-3) 89
RH % (24h trend) 61 (-5) 96 (+3) 56
Wind 20ft/early(mph) E 12 E 12 E 8
Wind 20ft/late(mph) E 12 E 12 E 8
Mixing Hgt(ft-agl/msl)3780 4070
Transport Wnd (mph) E 15 E 9
Vent Rate (kt-ft) 49140 32560
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
$$