585
FNCA52 TJSJ 281930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST TUE APR 28 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-290800-
SOUTHEAST COASTAL PLAINS-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 50 40
TEMP (24H TREND) 71 (-3) 89 (+4) 71 88
RH % (24H TREND) 90 (0) 55 (-6) 92 57
WIND 20FT/EARLY(MPH) E 8 E 14 E 9 E 9
WIND 20FT/LATE(MPH) NE 5 SE 14 NE 6 SE 10
MIXING HGT(FT-AGL/MSL) 4270 3700
TRANSPORT WND (MPH) E 8 SE 10
VENT RATE (KT-FT) 29890 33300
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-290800-
SOUTHERN HILLS-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 40 40 30
TEMP (24H TREND) 68 (-4) 85 (+5) 68 84
RH % (24H TREND) 98 (+4) 67 (-10) 98 66
WIND 20FT/EARLY(MPH) NE 5 E 10 E 5 E 8
WIND 20FT/LATE(MPH) NE 5 SE 10 NE 6 SE 9
MIXING HGT(FT-AGL/MSL) 4980 3960
TRANSPORT WND (MPH) E 7 SE 7
VENT RATE (KT-FT) 29880 23760
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-290800-
NORTH COASTAL PLAINS-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 70 50 70
TEMP (24H TREND) 71 (-2) 88 (+2) 71 88
RH % (24H TREND) 99 (+4) 64 (-7) 99 62
WIND 20FT/EARLY(MPH) E 8 E 9 E 11 E 8
WIND 20FT/LATE(MPH) SE 8 E 11 E 11 E 8
MIXING HGT(FT-AGL/MSL) 4210 3560
TRANSPORT WND (MPH) E 8 E 6
VENT RATE (KT-FT) 29470 17800
DISPERSION 5 4
DSI 2 6 4 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-290800-
NORTHERN HILLS-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 70 50 70
TEMP (24H TREND) 69 (-2) 87 (+4) 69 87
RH % (24H TREND) 99 (+3) 67 (-7) 100 65
WIND 20FT/EARLY(MPH) SE 6 E 8 E 10 E 6
WIND 20FT/LATE(MPH) SE 6 E 9 SE 10 NE 6
MIXING HGT(FT-AGL/MSL) 5030 3470
TRANSPORT WND (MPH) E 6 NE 2
VENT RATE (KT-FT) 25150 6940
DISPERSION 5 4
DSI 2 6 3 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-290800-
WEST COAST-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 50 30 40
TEMP (24H TREND) 71 (-2) 89 (+2) 71 89
RH % (24H TREND) 98 (+4) 63 (-7) 98 62
WIND 20FT/EARLY(MPH) E 11 E 10 NE 12 E 10
WIND 20FT/LATE(MPH) NE 11 E 10 E 12 E 10
MIXING HGT(FT-AGL/MSL) 4470 3840
TRANSPORT WND (MPH) SE 5 SE 7
VENT RATE (KT-FT) 17880 23040
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-290800-
EASTERN INTERIOR-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 50 50 50
TEMP (24H TREND) 69 (-4) 86 (+3) 69 86
RH % (24H TREND) 98 (+3) 66 (-8) 98 64
WIND 20FT/EARLY(MPH) E 6 E 9 E 6 SE 6
WIND 20FT/LATE(MPH) NE 5 E 9 E 6 E 5
MIXING HGT(FT-AGL/MSL) 4900 4390
TRANSPORT WND (MPH) E 8 SE 6
VENT RATE (KT-FT) 34300 21950
DISPERSION 5 4
DSI 1 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-290800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 50 50
TEMP (24H TREND) 67 (-4) 83 (+5) 68 82
RH % (24H TREND) 99 (+1) 70 (-11) 99 69
WIND 20FT/EARLY(MPH) E 5 E 8 E 5 E 5
WIND 20FT/LATE(MPH) LGT/VAR SE 8 LGT/VAR E 5
MIXING HGT(FT-AGL/MSL) 4380 4050
TRANSPORT WND (MPH) E 9 SE 7
VENT RATE (KT-FT) 35040 24300
DISPERSION 5 4
DSI 1 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-290800-
CENTRAL MOUNTAIN RANGE-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 60 40 50
TEMP (24H TREND) 66 (-4) 85 (+7) 66 85
RH % (24H TREND) 100 (+4) 69 (-12) 100 69
WIND 20FT/EARLY(MPH) E 6 E 6 E 10 E 6
WIND 20FT/LATE(MPH) E 6 E 6 E 10 E 6
MIXING HGT(FT-AGL/MSL) 5690 4250
TRANSPORT WND (MPH) SE 5 SE 5
VENT RATE (KT-FT) 22760 17000
DISPERSION 5 5
DSI 1 5 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-290800-
CAYEY MOUNTAIN RANGE-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 50 50 50
TEMP (24H TREND) 68 (-3) 81 (+3) 68 81
RH % (24H TREND) 100 (+2) 72 (-9) 100 69
WIND 20FT/EARLY(MPH) LGT/VAR E 9 E 5 E 5
WIND 20FT/LATE(MPH) LGT/VAR SE 9 NE 5 SE 6
MIXING HGT(FT-AGL/MSL) 4560 4220
TRANSPORT WND (MPH) E 9 SE 7
VENT RATE (KT-FT) 36480 25320
DISPERSION 5 4
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-290800-
VIEQUES-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 60 50
TEMP (24H TREND) 74 (-1) 86 (0) 74 86
RH % (24H TREND) 94 (-1) 62 (-4) 90 62
WIND 20FT/EARLY(MPH) E 8 E 9 E 8 E 9
WIND 20FT/LATE(MPH) E 8 SE 9 E 9 E 9
MIXING HGT(FT-AGL/MSL) 2840 3380
TRANSPORT WND (MPH) SE 8 E 9
VENT RATE (KT-FT) 19880 27040
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-290800-
CULEBRA-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 60 50
TEMP (24H TREND) 75 (-2) 88 (+2) 75 88
RH % (24H TREND) 91 (-1) 62 (-6) 90 61
WIND 20FT/EARLY(MPH) E 8 E 9 E 9 E 10
WIND 20FT/LATE(MPH) E 8 SE 9 E 9 SE 9
MIXING HGT(FT-AGL/MSL) 3120 3290
TRANSPORT WND (MPH) SE 8 E 9
VENT RATE (KT-FT) 21840 26320
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-290800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 30 30
TEMP (24H TREND) 72 (-2) 90 (+3) 72 89
RH % (24H TREND) 92 (+1) 52 (-9) 94 54
WIND 20FT/EARLY(MPH) E 10 E 13 E 11 E 13
WIND 20FT/LATE(MPH) NE 10 SE 13 NE 12 SE 14
MIXING HGT(FT-AGL/MSL) 4580 3910
TRANSPORT WND (MPH) SE 8 SE 12
VENT RATE (KT-FT) 32060 39100
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-290800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 50 50
TEMP (24H TREND) 74 (-3) 85 (+1) 74 85
RH % (24H TREND) 92 (+2) 63 (-6) 90 63
WIND 20FT/EARLY(MPH) E 9 E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 9 SE 11 E 10 SE 10
MIXING HGT(FT-AGL/MSL) 3240 3140
TRANSPORT WND (MPH) SE 10 E 10
VENT RATE (KT-FT) 29160 28260
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-290800-
ST CROIX-
330 PM AST TUE APR 28 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 40 40
TEMP (24H TREND) 74 (-2) 86 (+1) 74 86
RH % (24H TREND) 92 (-4) 63 (-6) 92 64
WIND 20FT/EARLY(MPH) E 10 E 12 E 8 E 10
WIND 20FT/LATE(MPH) E 10 SE 11 E 8 SE 10
MIXING HGT(FT-AGL/MSL) 4320 3860
TRANSPORT WND (MPH) SE 12 SE 9
VENT RATE (KT-FT) 43200 30880
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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