147
FNCA52 TJSJ 271930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST MON APR 27 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-280800-
SOUTHEAST COASTAL PLAINS-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 60 40
TEMP (24H TREND) 72 (-1) 87 (0) 71 89
RH % (24H TREND) 95 (+1) 65 (-2) 96 61
WIND 20FT/EARLY(MPH) E 9 E 5 E 9 E 11
WIND 20FT/LATE(MPH) NE 5 SE 8 NE 6 SE 12
MIXING HGT(FT-AGL/MSL) 1910 4600
TRANSPORT WND (MPH) E 5 SE 8
VENT RATE (KT-FT) 7640 32200
DISPERSION 4 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-280800-
SOUTHERN HILLS-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 40 40
TEMP (24H TREND) 69 (-2) 83 (+1) 68 85
RH % (24H TREND) 99 (+3) 71 (-1) 99 66
WIND 20FT/EARLY(MPH) E 6 E 5 E 5 E 9
WIND 20FT/LATE(MPH) LGT/VAR SE 6 NE 5 SE 9
MIXING HGT(FT-AGL/MSL) 1660 5340
TRANSPORT WND (MPH) E 6 SE 7
VENT RATE (KT-FT) 8300 32040
DISPERSION 4 5
DSI 1 6 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-280800-
NORTH COASTAL PLAINS-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 90 70 60
TEMP (24H TREND) 71 (-1) 87 (-1) 71 88
RH % (24H TREND) 100 (+3) 65 (-2) 100 62
WIND 20FT/EARLY(MPH) SE 9 E 8 LGT/VAR E 8
WIND 20FT/LATE(MPH) LGT/VAR E 9 LGT/VAR E 10
MIXING HGT(FT-AGL/MSL) 2430 4390
TRANSPORT WND (MPH) SE 3 E 8
VENT RATE (KT-FT) 7290 30730
DISPERSION 4 5
DSI 2 4 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-280800-
NORTHERN HILLS-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 90 60 60
TEMP (24H TREND) 69 (-1) 85 (-1) 69 87
RH % (24H TREND) 100 (+1) 69 (+3) 100 65
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR E 6
WIND 20FT/LATE(MPH) LGT/VAR E 5 LGT/VAR NE 8
MIXING HGT(FT-AGL/MSL) 1910 5300
TRANSPORT WND (MPH) S 1 SE 7
VENT RATE (KT-FT) 1910 31800
DISPERSION 3 5
DSI 1 3 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-280800-
WEST COAST-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 30 40
TEMP (24H TREND) 72 (0) 88 (-1) 71 89
RH % (24H TREND) 98 (+2) 67 (+1) 99 64
WIND 20FT/EARLY(MPH) E 9 E 8 E 8 E 8
WIND 20FT/LATE(MPH) E 6 E 10 NE 6 E 9
MIXING HGT(FT-AGL/MSL) 1610 4200
TRANSPORT WND (MPH) SE 7 S 8
VENT RATE (KT-FT) 9660 29400
DISPERSION 4 5
DSI 3 6 2 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-280800-
EASTERN INTERIOR-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 60 60
TEMP (24H TREND) 71 (-1) 85 (0) 69 86
RH % (24H TREND) 99 (+2) 68 (0) 100 64
WIND 20FT/EARLY(MPH) SE 10 SE 8 LGT/VAR E 8
WIND 20FT/LATE(MPH) SE 6 SE 8 E 6 E 9
MIXING HGT(FT-AGL/MSL) 1980 5330
TRANSPORT WND (MPH) SE 6 SE 7
VENT RATE (KT-FT) 9900 31980
DISPERSION 4 5
DSI 1 5 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-280800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 60 50
TEMP (24H TREND) 68 (-2) 82 (+3) 67 83
RH % (24H TREND) 100 (+1) 72 (-6) 100 69
WIND 20FT/EARLY(MPH) SE 8 SE 5 LGT/VAR E 6
WIND 20FT/LATE(MPH) LGT/VAR SE 5 LGT/VAR E 8
MIXING HGT(FT-AGL/MSL) 2240 4240
TRANSPORT WND (MPH) SE 6 SE 9
VENT RATE (KT-FT) 11200 33920
DISPERSION 4 5
DSI 2 5 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-280800-
CENTRAL MOUNTAIN RANGE-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 80 30 60
TEMP (24H TREND) 67 (-1) 82 (+1) 66 85
RH % (24H TREND) 100 (+2) 73 (+1) 100 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR E 5 E 5
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR E 5 E 6
MIXING HGT(FT-AGL/MSL) 1320 5980
TRANSPORT WND (MPH) SE 3 SE 5
VENT RATE (KT-FT) 3960 23920
DISPERSION 3 5
DSI 1 4 1 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-280800-
CAYEY MOUNTAIN RANGE-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 60 50
TEMP (24H TREND) 69 (-1) 80 (0) 68 81
RH % (24H TREND) 100 (+1) 75 (0) 100 70
WIND 20FT/EARLY(MPH) SE 6 LGT/VAR LGT/VAR E 8
WIND 20FT/LATE(MPH) LGT/VAR LGT/VAR LGT/VAR E 8
MIXING HGT(FT-AGL/MSL) 1490 4760
TRANSPORT WND (MPH) SE 5 SE 8
VENT RATE (KT-FT) 5960 33320
DISPERSION 3 5
DSI 1 5 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-280800-
VIEQUES-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 60 50
TEMP (24H TREND) 73 (-2) 87 (+1) 74 86
RH % (24H TREND) 95 (+2) 63 (-5) 92 61
WIND 20FT/EARLY(MPH) SE 10 E 10 E 8 E 9
WIND 20FT/LATE(MPH) SE 8 SE 9 E 8 E 8
MIXING HGT(FT-AGL/MSL) 2210 2770
TRANSPORT WND (MPH) SE 10 SE 8
VENT RATE (KT-FT) 19890 19390
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-280800-
CULEBRA-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 60 50
TEMP (24H TREND) 75 (-2) 88 (+2) 75 88
RH % (24H TREND) 94 (+3) 63 (-7) 90 60
WIND 20FT/EARLY(MPH) SE 11 E 10 E 6 E 9
WIND 20FT/LATE(MPH) SE 8 SE 9 E 8 E 9
MIXING HGT(FT-AGL/MSL) 2360 2700
TRANSPORT WND (MPH) SE 10 SE 10
VENT RATE (KT-FT) 21240 24300
DISPERSION 4 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-280800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 50 30
TEMP (24H TREND) 72 (-2) 89 (+1) 72 90
RH % (24H TREND) 97 (+5) 61 (-2) 96 58
WIND 20FT/EARLY(MPH) E 12 E 11 E 11 E 11
WIND 20FT/LATE(MPH) E 10 SE 12 NE 8 SE 12
MIXING HGT(FT-AGL/MSL) 2320 4530
TRANSPORT WND (MPH) E 9 SE 9
VENT RATE (KT-FT) 18560 36240
DISPERSION 5 5
DSI 4 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-280800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 60 50
TEMP (24H TREND) 74 (-3) 85 (+1) 74 85
RH % (24H TREND) 94 (+2) 65 (-6) 92 63
WIND 20FT/EARLY(MPH) SE 12 E 12 E 8 E 9
WIND 20FT/LATE(MPH) SE 9 SE 9 E 9 E 8
MIXING HGT(FT-AGL/MSL) 2540 2890
TRANSPORT WND (MPH) SE 14 SE 8
VENT RATE (KT-FT) 30480 20230
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-280800-
ST CROIX-
330 PM AST MON APR 27 2026
TONIGHT TUE TUE NIGHT WED
CLOUD COVER MCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 60 50
TEMP (24H TREND) 74 (-2) 86 (+1) 74 86
RH % (24H TREND) 99 (+3) 65 (-7) 93 63
WIND 20FT/EARLY(MPH) SE 11 E 10 E 9 E 10
WIND 20FT/LATE(MPH) E 10 SE 9 E 10 E 10
MIXING HGT(FT-AGL/MSL) 2850 3660
TRANSPORT WND (MPH) E 8 SE 13
VENT RATE (KT-FT) 19950 40260
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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