154
FNCA52 TJSJ 030701
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
ISSUED BY NATIONAL WEATHER SERVICE MELBOURNE FL
301 AM AST TUE JUN 3 2025
DISCUSSION
CONDITIONS CONTINUE TO DRY OUT ACROSS THE REGION, WITH LOW
RELATIVE HUMIDITIES AND HIGH WINDS. VALUES OF RH COULD GO AS LOW
AS 45%, AND WINDS OUT OF THE EAST AT 15-18 MPH, WITH STRONGER
GUSTS. THESE CONDITIONS WOULD FAVOR THE SPREAD OF ANY FIRE
IGNITION, ESPECIALLY ALONG THE SOUTHERN PLAINS OF PUERTO RICO.
HOWEVER, THE KBDI VALUES STILL NOT MEET THE CRITERIA FOR A FIRE
WEATHER STATEMENT. REGARDLESS, A MODERATE RISK EXIST FOR TODAY.
PRZ014-040715-
SOUTHEAST COASTAL PLAINS-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 0 10 20
TEMP (24H TREND) 91 (+1) 73 (-3) 90
RH % (24H TREND) 45 (-15) 77 (-10) 53
WIND 20FT/EARLY(MPH) E 18 G23 E 16 G21 E 17 G22
WIND 20FT/LATE(MPH) E 18 G23 E 16 G21 E 17 G22
MIXING HGT(FT-AGL/MSL)5280 4890
TRANSPORT WND (MPH) E 18 E 20
VENT RATE (KT-FT) 84480 83130
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-040715-
SOUTHERN HILLS-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20
TEMP (24H TREND) 87 (+2) 69 (-5) 87
RH % (24H TREND) 55 (-9) 85 (-5) 57
WIND 20FT/EARLY(MPH) E 17 NE 17 E 17
WIND 20FT/LATE(MPH) E 17 NE 17 E 17
MIXING HGT(FT-AGL/MSL)5960 5390
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 89400 86240
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-040715-
NORTH COASTAL PLAINS-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 30
TEMP (24H TREND) 89 (-1) 73 (-3) 87
RH % (24H TREND) 57 (-6) 85 (-9) 65
WIND 20FT/EARLY(MPH) E 25 E 25 E 23
WIND 20FT/LATE(MPH) E 25 E 25 E 23
MIXING HGT(FT-AGL/MSL)4830 4510
TRANSPORT WND (MPH) E 21 E 22
VENT RATE (KT-FT) 86940 85690
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-040715-
NORTHERN HILLS-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 10 50
TEMP (24H TREND) 87 (-2) 70 (-3) 85
RH % (24H TREND) 59 (-2) 85 (-11) 63
WIND 20FT/EARLY(MPH) E 23 E 21 E 20
WIND 20FT/LATE(MPH) E 23 E 21 E 20
MIXING HGT(FT-AGL/MSL)5790 4990
TRANSPORT WND (MPH) E 15 E 18
VENT RATE (KT-FT) 75270 79840
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-040715-
WEST COAST-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE TSTMS
CHANCE PRECIP (%) 60 0 30
TEMP (24H TREND) 91 (0) 70 (-4) 90
RH % (24H TREND) 56 (-6) 83 (-11) 56
WIND 20FT/EARLY(MPH) E 19 E 20 E 17
WIND 20FT/LATE(MPH) E 19 E 20 E 17
MIXING HGT(FT-AGL/MSL)5310 4990
TRANSPORT WND (MPH) E 10 E 14
VENT RATE (KT-FT) 47790 59880
DISPERSION 5 5
DSI 5 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-040715-
EASTERN INTERIOR-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 87 (0) 71 (-4) 85
RH % (24H TREND) 58 (-6) 86 (-8) 65
WIND 20FT/EARLY(MPH) E 17 E 18 E 18
WIND 20FT/LATE(MPH) E 17 E 18 E 18
MIXING HGT(FT-AGL/MSL)5700 4190
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 85500 67040
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-040715-
LUQUILLO MOUNTAIN RANGE-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 83 (+2) 68 (-5) 82
RH % (24H TREND) 66 (-9) 95 (-1) 72
WIND 20FT/EARLY(MPH) E 14 E 14 E 16
WIND 20FT/LATE(MPH) E 14 E 14 E 16
MIXING HGT(FT-AGL/MSL)4880 3650
TRANSPORT WND (MPH) E 17 E 21
VENT RATE (KT-FT) 73200 65700
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-040715-
CENTRAL MOUNTAIN RANGE-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 30 0 50
TEMP (24H TREND) 86 (+2) 66 (-5) 85
RH % (24H TREND) 59 (-6) 87 (-7) 60
WIND 20FT/EARLY(MPH) E 16 E 18 E 13
WIND 20FT/LATE(MPH) E 16 E 18 E 13
MIXING HGT(FT-AGL/MSL)6810 5720
TRANSPORT WND (MPH) E 13 E 15
VENT RATE (KT-FT) 74910 74360
DISPERSION 5 5
DSI 5 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-040715-
CAYEY MOUNTAIN RANGE-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 40
TEMP (24H TREND) 83 (+1) 69 (-4) 81
RH % (24H TREND) 64 (-7) 89 (-7) 70
WIND 20FT/EARLY(MPH) E 16 NE 14 E 14
WIND 20FT/LATE(MPH) E 16 NE 14 E 14
MIXING HGT(FT-AGL/MSL)5260 3900
TRANSPORT WND (MPH) E 18 E 21
VENT RATE (KT-FT) 84160 70200
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-040715-
VIEQUES-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 88 (-1) 75 (-3) 88
RH % (24H TREND) 56 (-8) 87 (0) 58
WIND 20FT/EARLY(MPH) E 19 E 21 G23 E 20
WIND 20FT/LATE(MPH) E 19 E 21 G23 E 20
MIXING HGT(FT-AGL/MSL)3960 3530
TRANSPORT WND (MPH) E 21 E 21
VENT RATE (KT-FT) 71280 63540
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-040715-
CULEBRA-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 90 (+2) 75 (-3) 91
RH % (24H TREND) 56 (-11) 90 (-1) 57
WIND 20FT/EARLY(MPH) E 19 E 20 E 20 G23
WIND 20FT/LATE(MPH) E 19 E 20 E 20 G23
MIXING HGT(FT-AGL/MSL)4090 3590
TRANSPORT WND (MPH) E 21 E 21
VENT RATE (KT-FT) 73620 64620
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-040715-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 10
TEMP (24H TREND) 92 (+2) 72 (-5) 92
RH % (24H TREND) 46 (-13) 75 (-9) 52
WIND 20FT/EARLY(MPH) E 23 G29 E 19 G24 E 21 G27
WIND 20FT/LATE(MPH) E 23 G29 E 19 G24 E 21 G27
MIXING HGT(FT-AGL/MSL)5650 5540
TRANSPORT WND (MPH) E 18 E 18
VENT RATE (KT-FT) 90400 88640
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-040715-
SAINT THOMAS AND SAINT JOHN-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 40
TEMP (24H TREND) 87 (+3) 75 (-3) 87
RH % (24H TREND) 60 (-15) 89 (-2) 62
WIND 20FT/EARLY(MPH) E 20 E 20 E 20 G23
WIND 20FT/LATE(MPH) E 20 E 20 E 20 G23
MIXING HGT(FT-AGL/MSL)3910 3440
TRANSPORT WND (MPH) E 21 E 23
VENT RATE (KT-FT) 70380 68800
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-040715-
ST CROIX-
301 AM AST TUE JUN 3 2025
TODAY TONIGHT WED
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 0 40 40
TEMP (24H TREND) 87 (+1) 74 (-4) 86
RH % (24H TREND) 58 (-12) 89 (+2) 66
WIND 20FT/EARLY(MPH) E 19 E 19 E 20
WIND 20FT/LATE(MPH) E 19 E 19 E 20
MIXING HGT(FT-AGL/MSL)4350 4300
TRANSPORT WND (MPH) E 21 E 23
VENT RATE (KT-FT) 78300 86000
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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