211
FNCA52 TJSJ 050730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST MON OCT 5 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-052000-
SOUTHEAST COASTAL PLAINS-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 20
TEMP (24H TREND) 92 (+2) 73 (-2) 92
RH % (24H TREND) 56 (-5) 94 (+4) 49
WIND 20FT/EARLY(MPH) E 12 E 10 E 13
WIND 20FT/LATE(MPH) SE 13 NE 9 E 13
MIXING HGT(FT-AGL/MSL)4910 4950
TRANSPORT WND (MPH) E 12 E 13
VENT RATE (KT-FT) 49100 54450
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-052000-
SOUTHERN HILLS-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 30 50
TEMP (24H TREND) 90 (+4) 69 (-3) 90
RH % (24H TREND) 59 (-5) 99 (+4) 58
WIND 20FT/EARLY(MPH) E 9 E 9 E 10
WIND 20FT/LATE(MPH) SE 10 E 9 E 10
MIXING HGT(FT-AGL/MSL)5630 5670
TRANSPORT WND (MPH) E 9 E 12
VENT RATE (KT-FT) 45040 56700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-052000-
NORTH COASTAL PLAINS-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 40
TEMP (24H TREND) 92 (+2) 72 (-3) 91
RH % (24H TREND) 60 (-5) 99 (+4) 60
WIND 20FT/EARLY(MPH) E 8 SE 10 E 11
WIND 20FT/LATE(MPH) E 14 SE 8 E 13
MIXING HGT(FT-AGL/MSL)5000 5000
TRANSPORT WND (MPH) E 9 E 10
VENT RATE (KT-FT) 40000 45000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-052000-
NORTHERN HILLS-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 60 70
TEMP (24H TREND) 90 (+2) 70 (-2) 91
RH % (24H TREND) 62 (-3) 99 (+2) 62
WIND 20FT/EARLY(MPH) E 6 SE 9 E 9
WIND 20FT/LATE(MPH) NE 12 LGT/VAR E 11
MIXING HGT(FT-AGL/MSL)5450 5690
TRANSPORT WND (MPH) E 7 SE 8
VENT RATE (KT-FT) 32700 39830
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-052000-
WEST COAST-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 30 70
TEMP (24H TREND) 93 (+2) 72 (-1) 94
RH % (24H TREND) 59 (-4) 99 (+4) 58
WIND 20FT/EARLY(MPH) E 9 E 8 E 10
WIND 20FT/LATE(MPH) E 10 E 10 E 11
MIXING HGT(FT-AGL/MSL)4620 4820
TRANSPORT WND (MPH) SE 7 SE 8
VENT RATE (KT-FT) 27720 33740
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-052000-
EASTERN INTERIOR-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 40
TEMP (24H TREND) 91 (+3) 71 (-3) 91
RH % (24H TREND) 58 (-4) 100 (+4) 58
WIND 20FT/EARLY(MPH) SE 9 SE 10 E 10
WIND 20FT/LATE(MPH) SE 12 SE 10 E 11
MIXING HGT(FT-AGL/MSL)6510 6030
TRANSPORT WND (MPH) SE 10 E 12
VENT RATE (KT-FT) 58590 60300
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-052000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 87 (+4) 69 (-2) 86
RH % (24H TREND) 61 (-5) 100 (+1) 61
WIND 20FT/EARLY(MPH) SE 8 SE 8 E 9
WIND 20FT/LATE(MPH) SE 10 E 8 E 9
MIXING HGT(FT-AGL/MSL)4800 4170
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 48000 41700
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-052000-
CENTRAL MOUNTAIN RANGE-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 50 70
TEMP (24H TREND) 88 (+5) 67 (-3) 89
RH % (24H TREND) 62 (-7) 99 (+3) 63
WIND 20FT/EARLY(MPH) SE 6 LGT/VAR E 8
WIND 20FT/LATE(MPH) SE 8 LGT/VAR E 8
MIXING HGT(FT-AGL/MSL)6690 6380
TRANSPORT WND (MPH) SE 6 SE 8
VENT RATE (KT-FT) 33450 44660
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-052000-
CAYEY MOUNTAIN RANGE-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS
CHANCE PRECIP (%) 40 50 30
TEMP (24H TREND) 87 (+3) 68 (-3) 87
RH % (24H TREND) 60 (-3) 100 (+1) 61
WIND 20FT/EARLY(MPH) SE 8 E 8 E 9
WIND 20FT/LATE(MPH) SE 10 E 6 E 9
MIXING HGT(FT-AGL/MSL)5290 5090
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 52900 50900
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-052000-
VIEQUES-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 40
TEMP (24H TREND) 91 (+2) 75 (-3) 90
RH % (24H TREND) 57 (-2) 96 (+6) 59
WIND 20FT/EARLY(MPH) E 10 E 13 E 12
WIND 20FT/LATE(MPH) E 11 E 13 E 11
MIXING HGT(FT-AGL/MSL)3160 3400
TRANSPORT WND (MPH) E 12 E 13
VENT RATE (KT-FT) 31600 37400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-052000-
CULEBRA-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 40
TEMP (24H TREND) 92 (+3) 77 (-2) 91
RH % (24H TREND) 57 (-4) 95 (+7) 59
WIND 20FT/EARLY(MPH) E 10 E 13 E 12
WIND 20FT/LATE(MPH) E 11 E 13 E 11
MIXING HGT(FT-AGL/MSL)3270 3530
TRANSPORT WND (MPH) SE 9 E 13
VENT RATE (KT-FT) 26160 38830
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-052000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 93 (+2) 74 (-2) 94
RH % (24H TREND) 55 (-2) 96 (+5) 47
WIND 20FT/EARLY(MPH) E 12 E 11 E 14
WIND 20FT/LATE(MPH) SE 14 E 13 SE 16
MIXING HGT(FT-AGL/MSL)4900 5160
TRANSPORT WND (MPH) SE 13 E 14
VENT RATE (KT-FT) 53900 61920
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-052000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 30
TEMP (24H TREND) 88 (+1) 76 (-3) 89
RH % (24H TREND) 64 (-1) 93 (+5) 63
WIND 20FT/EARLY(MPH) SE 11 E 14 E 13
WIND 20FT/LATE(MPH) E 11 E 14 E 12
MIXING HGT(FT-AGL/MSL)3330 3410
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 39960 37510
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-052000-
ST CROIX-
330 AM AST MON OCT 5 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30
TEMP (24H TREND) 91 (+2) 74 (-4) 90
RH % (24H TREND) 62 (-3) 100 (+6) 64
WIND 20FT/EARLY(MPH) E 11 E 13 E 13
WIND 20FT/LATE(MPH) E 11 E 13 E 12
MIXING HGT(FT-AGL/MSL)4310 4980
TRANSPORT WND (MPH) E 14 E 15
VENT RATE (KT-FT) 51720 64740
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page