749
FNCA52 TJSJ 280730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST SUN JUN 28 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-282000-
SOUTHEAST COASTAL PLAINS-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 0 10 70
TEMP (24H TREND) 91 (+2) 74 (-1) 91
RH % (24H TREND) 47 (-8) 93 (+7) 52
WIND 20FT/EARLY(MPH) E 16 E 12 E 12
WIND 20FT/LATE(MPH) SE 14 E 9 SE 16
MIXING HGT(FT-AGL/MSL)4900 4790
TRANSPORT WND (MPH) E 16 SE 14
VENT RATE (KT-FT) 68600 57480
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-282000-
SOUTHERN HILLS-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 10 70
TEMP (24H TREND) 89 (+5) 70 (-2) 88
RH % (24H TREND) 58 (-10) 100 (+7) 65
WIND 20FT/EARLY(MPH) E 12 E 10 E 11
WIND 20FT/LATE(MPH) SE 12 E 10 SE 12
MIXING HGT(FT-AGL/MSL)5920 5550
TRANSPORT WND (MPH) E 16 SE 14
VENT RATE (KT-FT) 82880 66600
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-282000-
NORTH COASTAL PLAINS-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 30 80
TEMP (24H TREND) 91 (+2) 73 (-1) 91
RH % (24H TREND) 59 (-8) 99 (+5) 62
WIND 20FT/EARLY(MPH) E 12 E 18 E 12
WIND 20FT/LATE(MPH) E 20 E 11 E 17
MIXING HGT(FT-AGL/MSL)5300 4870
TRANSPORT WND (MPH) E 15 E 12
VENT RATE (KT-FT) 68900 48700
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-282000-
NORTHERN HILLS-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 20 0 80
TEMP (24H TREND) 90 (+3) 71 (-1) 89
RH % (24H TREND) 60 (-9) 100 (+3) 67
WIND 20FT/EARLY(MPH) E 11 E 14 E 11
WIND 20FT/LATE(MPH) E 17 E 9 E 14
MIXING HGT(FT-AGL/MSL)6820 6190
TRANSPORT WND (MPH) E 13 SE 9
VENT RATE (KT-FT) 75020 49520
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-282000-
WEST COAST-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 20 0 40
TEMP (24H TREND) 92 (+2) 74 (+1) 92
RH % (24H TREND) 57 (-9) 100 (+4) 63
WIND 20FT/EARLY(MPH) E 12 E 11 E 13
WIND 20FT/LATE(MPH) E 14 E 11 E 14
MIXING HGT(FT-AGL/MSL)4920 4560
TRANSPORT WND (MPH) E 12 SE 13
VENT RATE (KT-FT) 49200 50160
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-282000-
EASTERN INTERIOR-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 40 70
TEMP (24H TREND) 90 (+4) 71 (-3) 89
RH % (24H TREND) 59 (-6) 100 (+6) 64
WIND 20FT/EARLY(MPH) E 12 E 11 SE 12
WIND 20FT/LATE(MPH) E 13 E 11 SE 14
MIXING HGT(FT-AGL/MSL)6430 6320
TRANSPORT WND (MPH) SE 15 SE 14
VENT RATE (KT-FT) 83590 75840
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-282000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 60 70
TEMP (24H TREND) 85 (+5) 69 (-3) 85
RH % (24H TREND) 68 (-6) 100 (+3) 71
WIND 20FT/EARLY(MPH) E 11 E 9 SE 10
WIND 20FT/LATE(MPH) E 11 E 9 SE 12
MIXING HGT(FT-AGL/MSL)4340 4170
TRANSPORT WND (MPH) E 16 SE 15
VENT RATE (KT-FT) 60760 54210
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-282000-
CENTRAL MOUNTAIN RANGE-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 20 0 60
TEMP (24H TREND) 88 (+6) 68 (-2) 88
RH % (24H TREND) 60 (-14) 100 (+3) 70
WIND 20FT/EARLY(MPH) E 9 E 8 SE 9
WIND 20FT/LATE(MPH) SE 10 E 8 SE 10
MIXING HGT(FT-AGL/MSL)7420 6770
TRANSPORT WND (MPH) SE 9 SE 10
VENT RATE (KT-FT) 59360 60930
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-282000-
CAYEY MOUNTAIN RANGE-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 40 70
TEMP (24H TREND) 85 (+3) 70 (-1) 84
RH % (24H TREND) 66 (-5) 100 (+1) 72
WIND 20FT/EARLY(MPH) E 10 E 9 E 9
WIND 20FT/LATE(MPH) E 10 E 8 SE 11
MIXING HGT(FT-AGL/MSL)5130 5200
TRANSPORT WND (MPH) E 16 SE 14
VENT RATE (KT-FT) 71820 62400
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-282000-
VIEQUES-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 60 60
TEMP (24H TREND) 89 (+2) 76 (-2) 89
RH % (24H TREND) 61 (-2) 95 (+9) 61
WIND 20FT/EARLY(MPH) E 14 E 14 SE 13
WIND 20FT/LATE(MPH) E 13 E 13 E 16
MIXING HGT(FT-AGL/MSL)3480 2910
TRANSPORT WND (MPH) E 20 SE 17
VENT RATE (KT-FT) 59160 43650
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-282000-
CULEBRA-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 60 50
TEMP (24H TREND) 91 (+3) 77 (-2) 91
RH % (24H TREND) 60 (-5) 97 (+12) 61
WIND 20FT/EARLY(MPH) E 14 E 14 SE 16
WIND 20FT/LATE(MPH) E 13 E 14 E 16
MIXING HGT(FT-AGL/MSL)3450 2950
TRANSPORT WND (MPH) E 20 SE 18
VENT RATE (KT-FT) 58650 47200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-282000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 30
TEMP (24H TREND) 93 (+3) 74 (-2) 92
RH % (24H TREND) 45 (-10) 93 (+6) 50
WIND 20FT/EARLY(MPH) E 18 E 16 E 17
WIND 20FT/LATE(MPH) SE 20 E 14 SE 18
MIXING HGT(FT-AGL/MSL)5040 4680
TRANSPORT WND (MPH) E 20 SE 18
VENT RATE (KT-FT) 85680 74880
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-282000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 60 40
TEMP (24H TREND) 87 (+1) 76 (-3) 87
RH % (24H TREND) 66 (-2) 96 (+10) 67
WIND 20FT/EARLY(MPH) E 14 E 14 E 16
WIND 20FT/LATE(MPH) E 14 E 16 E 16
MIXING HGT(FT-AGL/MSL)3250 2760
TRANSPORT WND (MPH) E 20 SE 21
VENT RATE (KT-FT) 55250 49680
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-282000-
ST CROIX-
330 AM AST SUN JUN 28 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 70 40
TEMP (24H TREND) 88 (+1) 76 (-3) 88
RH % (24H TREND) 65 (-1) 97 (+10) 66
WIND 20FT/EARLY(MPH) E 13 E 12 E 14
WIND 20FT/LATE(MPH) E 13 E 12 E 16
MIXING HGT(FT-AGL/MSL)4030 4500
TRANSPORT WND (MPH) E 20 E 22
VENT RATE (KT-FT) 68510 85500
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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