Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
481
FNCA52 TJSJ 080732
FWFSJU
Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
332 AM AST Sat Nov 8 2025
.DISCUSSION...
Fire danger risk will remain low throughout the day today with
passing showers across the southern slopes of Puerto Rico during
the morning hours. Additionally, continue to expect locally
induced afternoon showers across western Puerto Rico. The RH and
wind threshold values generally below criteria.
PRZ014-090745-
Southeast Coastal Plains-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Mcldy
Precip Type Showers Showers Tstms
Chance Precip (%) 30 50 70
Temp (24h trend) 88 (+1) 73 (-1) 87
RH % (24h trend) 53 (-6) 89 (0) 61
Wind 20ft/early(mph) E 16 G21 E 12 E 19 G24
Wind 20ft/late(mph) E 16 G21 E 12 E 19 G24
Mixing Hgt(ft-agl/msl)4840 3540
Transport Wnd (mph) E 18 E 22
Vent Rate (kt-ft) 77440 67260
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ015-090745-
Southern Hills-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Tstms
Chance Precip (%) 20 20 60
Temp (24h trend) 86 (+4) 69 (-3) 84
RH % (24h trend) 62 (-7) 97 (+2) 68
Wind 20ft/early(mph) E 12 E 12 E 14
Wind 20ft/late(mph) E 12 E 12 E 14
Mixing Hgt(ft-agl/msl)5160 4150
Transport Wnd (mph) E 17 E 21
Vent Rate (kt-ft) 77400 74700
Dispersion 5 5
DSI 6 3 5
RH Recovery Excellent
Remarks...None.
$$
PRZ016-090745-
North Coastal Plains-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Tstms
Chance Precip (%) 30 20 50
Temp (24h trend) 89 (+1) 73 (-1) 87
RH % (24h trend) 61 (-5) 96 (+1) 68
Wind 20ft/early(mph) E 17 G19 E 12 E 17 G20
Wind 20ft/late(mph) E 17 G19 E 12 E 17 G20
Mixing Hgt(ft-agl/msl)5850 4300
Transport Wnd (mph) E 16 E 21
Vent Rate (kt-ft) 81900 77400
Dispersion 5 5
DSI 6 5 6
RH Recovery Excellent
Remarks...None.
$$
PRZ017-090745-
Northern Hills-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Tstms
Chance Precip (%) 40 10 40
Temp (24h trend) 88 (+2) 70 (-1) 86
RH % (24h trend) 61 (-3) 96 (0) 67
Wind 20ft/early(mph) E 14 E 10 E 16
Wind 20ft/late(mph) E 14 E 10 E 16
Mixing Hgt(ft-agl/msl)5920 4760
Transport Wnd (mph) E 14 E 18
Vent Rate (kt-ft) 71040 76160
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ018-090745-
West Coast-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms None Tstms
Chance Precip (%) 40 0 60
Temp (24h trend) 89 (+1) 72 (-1) 88
RH % (24h trend) 63 (-3) 93 (-1) 66
Wind 20ft/early(mph) E 16 E 12 SE 17
Wind 20ft/late(mph) E 16 E 12 SE 17
Mixing Hgt(ft-agl/msl)4680 3980
Transport Wnd (mph) E 16 E 15
Vent Rate (kt-ft) 65520 51740
Dispersion 5 5
DSI 6 4 5
RH Recovery Excellent
Remarks...None.
$$
PRZ019-090745-
Eastern Interior-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Mcldy
Precip Type Showers Tstms Tstms
Chance Precip (%) 40 50 70
Temp (24h trend) 87 (+2) 71 (-2) 85
RH % (24h trend) 64 (-5) 99 (+1) 70
Wind 20ft/early(mph) E 13 E 14 E 17
Wind 20ft/late(mph) E 13 E 14 E 17
Mixing Hgt(ft-agl/msl)5410 3530
Transport Wnd (mph) E 17 E 22
Vent Rate (kt-ft) 81150 67070
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ022-090745-
Luquillo Mountain Range-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Mcldy
Precip Type Showers Tstms Tstms
Chance Precip (%) 40 60 70
Temp (24h trend) 82 (+3) 68 (-3) 81
RH % (24h trend) 70 (-9) 100 (0) 76
Wind 20ft/early(mph) E 12 E 11 E 14 G17
Wind 20ft/late(mph) E 12 E 11 E 14 G17
Mixing Hgt(ft-agl/msl)4970 3310
Transport Wnd (mph) E 18 E 25
Vent Rate (kt-ft) 79520 72820
Dispersion 5 5
DSI 6 5 6
RH Recovery Excellent
Remarks...None.
$$
PRZ023-090745-
Central Mountain Range-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Mclear Pcldy
Precip Type Tstms Showers Tstms
Chance Precip (%) 50 10 50
Temp (24h trend) 86 (+5) 67 (-3) 84
RH % (24h trend) 62 (-7) 95 (-1) 67
Wind 20ft/early(mph) SE 10 E 9 SE 11
Wind 20ft/late(mph) SE 10 E 9 SE 11
Mixing Hgt(ft-agl/msl)5870 5060
Transport Wnd (mph) E 13 E 17
Vent Rate (kt-ft) 64570 75900
Dispersion 5 5
DSI 5 2 5
RH Recovery Excellent
Remarks...None.
$$
PRZ024-090745-
Cayey Mountain Range-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Mcldy
Precip Type Showers Tstms Tstms
Chance Precip (%) 40 60 70
Temp (24h trend) 82 (+2) 69 (-1) 80
RH % (24h trend) 70 (-5) 100 (0) 76
Wind 20ft/early(mph) E 12 E 10 E 13
Wind 20ft/late(mph) E 12 E 10 E 13
Mixing Hgt(ft-agl/msl)4900 3100
Transport Wnd (mph) E 18 E 23
Vent Rate (kt-ft) 78400 62000
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ025-090745-
Vieques-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Mcldy Mcldy
Precip Type Showers Tstms Tstms
Chance Precip (%) 40 60 60
Temp (24h trend) 87 (+1) 76 (0) 88
RH % (24h trend) 63 (-6) 96 (+2) 63
Wind 20ft/early(mph) E 16 G19 E 18 G22 E 19 G23
Wind 20ft/late(mph) E 16 G19 E 18 G22 E 19 G23
Mixing Hgt(ft-agl/msl)4230 3430
Transport Wnd (mph) E 20 E 24
Vent Rate (kt-ft) 71910 72030
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ026-090745-
Culebra-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Mcldy
Precip Type Showers Showers Tstms
Chance Precip (%) 40 50 70
Temp (24h trend) 90 (+3) 77 (-1) 89
RH % (24h trend) 61 (-9) 96 (+2) 64
Wind 20ft/early(mph) E 16 G20 E 18 G22 E 18 G23
Wind 20ft/late(mph) E 16 G20 E 18 G22 E 18 G23
Mixing Hgt(ft-agl/msl)4140 3430
Transport Wnd (mph) E 21 E 24
Vent Rate (kt-ft) 74520 72030
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ027-090745-
Southwest Coastal Plains and Mona Island-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Mclear Pcldy
Precip Type Showers Showers Tstms
Chance Precip (%) 20 10 60
Temp (24h trend) 90 (+2) 74 (-1) 89
RH % (24h trend) 51 (-5) 84 (-5) 58
Wind 20ft/early(mph) E 20 G26 E 17 G22 E 23 G30
Wind 20ft/late(mph) E 20 G26 E 17 G22 E 23 G30
Mixing Hgt(ft-agl/msl)4940 3990
Transport Wnd (mph) E 21 E 23
Vent Rate (kt-ft) 88920 79800
Dispersion 5 5
DSI 6 4 5
RH Recovery Excellent
Remarks...None.
$$
VIZ001-090745-
Saint Thomas and Saint John-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Tstms
Chance Precip (%) 40 50 60
Temp (24h trend) 86 (+2) 74 (-3) 85
RH % (24h trend) 68 (-5) 99 (+6) 72
Wind 20ft/early(mph) E 17 G21 E 18 G23 E 19 G23
Wind 20ft/late(mph) E 17 G21 E 18 G23 E 19 G23
Mixing Hgt(ft-agl/msl)4300 3570
Transport Wnd (mph) E 21 E 28
Vent Rate (kt-ft) 77400 85680
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
VIZ002-090745-
St Croix-
332 AM AST Sat Nov 8 2025
Today Tonight Sun
Cloud Cover Pcldy Mcldy Pcldy
Precip Type Showers Tstms Tstms
Chance Precip (%) 40 60 60
Temp (24h trend) 87 (+1) 76 (-1) 89
RH % (24h trend) 66 (-6) 93 (+2) 64
Wind 20ft/early(mph) E 16 G19 E 17 G21 E 17 G21
Wind 20ft/late(mph) E 16 G19 E 17 G21 E 17 G21
Mixing Hgt(ft-agl/msl)4660 3470
Transport Wnd (mph) E 22 E 23
Vent Rate (kt-ft) 88540 69400
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
$$