Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
963
FNCA52 TJSJ 060728
FWFSJU
Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
328 AM AST Fri Jun 6 2025
.DISCUSSION...
Breezy conditions are expected to persist today. There is a little
bit of moisture in the atmosphere, hence relative humidities are
expected to be just above 50%. KBDI values are increasing, but
still below the critical threshold. Therefore, the risk of fire
remains low for today.
PRZ014-070730-
Southeast Coastal Plains-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 10 30 30
Temp (24h trend) 91 (+2) 71 (-4) 91
RH % (24h trend) 52 (-3) 92 (+6) 52
Wind 20ft/early(mph) E 18 G23 E 14 G20 E 16 G22
Wind 20ft/late(mph) E 18 G23 E 14 G20 E 16 G22
Mixing Hgt(ft-agl/msl)5340 5610
Transport Wnd (mph) E 15 E 15
Vent Rate (kt-ft) 69420 72930
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ015-070730-
Southern Hills-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 20 20
Temp (24h trend) 87 (+3) 67 (-6) 87
RH % (24h trend) 59 (-2) 97 (+8) 60
Wind 20ft/early(mph) E 13 E 11 E 12
Wind 20ft/late(mph) E 13 E 11 E 12
Mixing Hgt(ft-agl/msl)5560 6180
Transport Wnd (mph) E 13 E 13
Vent Rate (kt-ft) 61160 67980
Dispersion 5 5
DSI 6 3 6
RH Recovery Excellent
Remarks...None.
$$
PRZ016-070730-
North Coastal Plains-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 10 40
Temp (24h trend) 89 (+1) 72 (-3) 88
RH % (24h trend) 60 (-2) 98 (+6) 62
Wind 20ft/early(mph) E 18 E 17 G19 E 18
Wind 20ft/late(mph) E 18 E 17 G19 E 18
Mixing Hgt(ft-agl/msl)4930 5450
Transport Wnd (mph) E 15 E 15
Vent Rate (kt-ft) 64090 70850
Dispersion 5 5
DSI 6 5 6
RH Recovery Excellent
Remarks...None.
$$
PRZ017-070730-
Northern Hills-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Showers
Chance Precip (%) 60 0 50
Temp (24h trend) 86 (+1) 69 (-3) 86
RH % (24h trend) 65 (+2) 99 (+4) 64
Wind 20ft/early(mph) E 14 E 13 E 14
Wind 20ft/late(mph) E 14 E 13 E 14
Mixing Hgt(ft-agl/msl)5440 6090
Transport Wnd (mph) E 10 E 10
Vent Rate (kt-ft) 48960 54810
Dispersion 5 5
DSI 6 4 5
RH Recovery Excellent
Remarks...None.
$$
PRZ018-070730-
West Coast-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Showers
Chance Precip (%) 60 30 60
Temp (24h trend) 90 (+1) 70 (-3) 91
RH % (24h trend) 60 (-1) 97 (+5) 58
Wind 20ft/early(mph) SE 12 E 11 SE 13
Wind 20ft/late(mph) SE 12 E 11 SE 13
Mixing Hgt(ft-agl/msl)5040 5300
Transport Wnd (mph) E 8 E 7
Vent Rate (kt-ft) 35280 31800
Dispersion 5 5
DSI 5 4 5
RH Recovery Excellent
Remarks...None.
$$
PRZ019-070730-
Eastern Interior-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 20 40
Temp (24h trend) 88 (+3) 70 (-4) 87
RH % (24h trend) 59 (-2) 98 (+7) 62
Wind 20ft/early(mph) E 12 E 11 E 13
Wind 20ft/late(mph) E 12 E 11 E 13
Mixing Hgt(ft-agl/msl)5730 6640
Transport Wnd (mph) E 13 E 14
Vent Rate (kt-ft) 63030 79680
Dispersion 5 5
DSI 6 3 6
RH Recovery Excellent
Remarks...None.
$$
PRZ022-070730-
Luquillo Mountain Range-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 40 40
Temp (24h trend) 84 (+5) 68 (-4) 84
RH % (24h trend) 66 (-8) 100 (+5) 69
Wind 20ft/early(mph) E 11 E 10 E 12
Wind 20ft/late(mph) E 11 E 10 E 12
Mixing Hgt(ft-agl/msl)4980 4700
Transport Wnd (mph) E 14 E 15
Vent Rate (kt-ft) 59760 61100
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ023-070730-
Central Mountain Range-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Showers
Chance Precip (%) 60 10 60
Temp (24h trend) 85 (+3) 66 (-4) 85
RH % (24h trend) 66 (+2) 99 (+5) 64
Wind 20ft/early(mph) E 10 E 9 E 9
Wind 20ft/late(mph) E 10 E 9 E 9
Mixing Hgt(ft-agl/msl)6460 7080
Transport Wnd (mph) E 8 SE 6
Vent Rate (kt-ft) 45220 35400
Dispersion 5 5
DSI 5 1 5
RH Recovery Excellent
Remarks...None.
$$
PRZ024-070730-
Cayey Mountain Range-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Mclear Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 30 40
Temp (24h trend) 83 (+2) 68 (-4) 83
RH % (24h trend) 65 (-2) 100 (+4) 68
Wind 20ft/early(mph) E 11 E 10 E 11
Wind 20ft/late(mph) E 11 E 10 E 11
Mixing Hgt(ft-agl/msl)5330 5510
Transport Wnd (mph) E 14 E 15
Vent Rate (kt-ft) 63960 71630
Dispersion 5 5
DSI 6 3 6
RH Recovery Excellent
Remarks...None.
$$
PRZ025-070730-
Vieques-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 40 40
Temp (24h trend) 89 (+3) 76 (-2) 89
RH % (24h trend) 56 (-7) 87 (+3) 59
Wind 20ft/early(mph) E 13 E 13 G17 E 14 G18
Wind 20ft/late(mph) E 13 E 13 G17 E 14 G18
Mixing Hgt(ft-agl/msl)4300 3480
Transport Wnd (mph) E 16 E 15
Vent Rate (kt-ft) 60200 45240
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ026-070730-
Culebra-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 40 50 40
Temp (24h trend) 90 (+3) 76 (-3) 90
RH % (24h trend) 56 (-8) 90 (+6) 58
Wind 20ft/early(mph) E 13 G17 E 13 G17 E 14 G19
Wind 20ft/late(mph) E 13 G17 E 13 G17 E 14 G19
Mixing Hgt(ft-agl/msl)3950 3470
Transport Wnd (mph) E 17 E 17
Vent Rate (kt-ft) 59250 52050
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ027-070730-
Southwest Coastal Plains and Mona Island-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 20 30 10
Temp (24h trend) 91 (+2) 72 (-3) 92
RH % (24h trend) 55 (-2) 89 (+5) 53
Wind 20ft/early(mph) SE 18 G23 E 14 G18 SE 18 G24
Wind 20ft/late(mph) SE 18 G23 E 14 G18 SE 18 G24
Mixing Hgt(ft-agl/msl)5560 5960
Transport Wnd (mph) E 15 E 13
Vent Rate (kt-ft) 72280 65560
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
VIZ001-070730-
Saint Thomas and Saint John-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 40 30
Temp (24h trend) 86 (+1) 75 (-3) 86
RH % (24h trend) 63 (-5) 90 (+3) 65
Wind 20ft/early(mph) E 13 G17 E 14 G19 E 16 G20
Wind 20ft/late(mph) E 13 G17 E 14 G19 E 16 G20
Mixing Hgt(ft-agl/msl)3920 3390
Transport Wnd (mph) E 17 E 16
Vent Rate (kt-ft) 58800 47460
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
VIZ002-070730-
St Croix-
328 AM AST Fri Jun 6 2025
Today Tonight Sat
Cloud Cover Pcldy Pcldy Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 20 40 20
Temp (24h trend) 88 (+2) 74 (-3) 87
RH % (24h trend) 59 (-6) 93 (+6) 65
Wind 20ft/early(mph) E 13 G17 E 14 G17 E 16 G19
Wind 20ft/late(mph) E 13 G17 E 14 G17 E 16 G19
Mixing Hgt(ft-agl/msl)4990 4330
Transport Wnd (mph) E 17 E 21
Vent Rate (kt-ft) 74850 77940
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
$$