Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
372
FNCA52 TJSJ 021930
FWFSJU
Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
330 PM AST Fri Oct 2 2026
.DISCUSSION...
No fire danger is expected today.
PRZ014-030800-
Southeast Coastal Plains-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Mclear Pcldy
Precip Type Showers Showers Showers Showers
Chance Precip (%) 30 50 20 20
Temp (24h trend) 74 (-2) 91 (+1) 74 92
RH % (24h trend) 90 (+1) 50 (-6) 90 45
Wind 20ft/early(mph) E 13 E 16 E 12 E 13
Wind 20ft/late(mph) NE 10 E 16 NE 10 E 14
Mixing Hgt(ft-agl/msl) 5060 5250
Transport Wnd (mph) E 15 E 12
Vent Rate (kt-ft) 65780 52500
Dispersion 5 5
DSI 4 6 3 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ015-030800-
Southern Hills-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Pcldy Mclear Pcldy
Precip Type Showers Tstms Showers Showers
Chance Precip (%) 30 40 10 30
Temp (24h trend) 70 (-4) 89 (+3) 70 89
RH % (24h trend) 97 (+5) 59 (-7) 96 59
Wind 20ft/early(mph) E 10 E 12 E 11 E 10
Wind 20ft/late(mph) E 9 E 12 NE 11 E 11
Mixing Hgt(ft-agl/msl) 5530 5980
Transport Wnd (mph) E 15 E 9
Vent Rate (kt-ft) 71890 47840
Dispersion 5 5
DSI 3 6 3 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ016-030800-
North Coastal Plains-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Pcldy Pcldy Pcldy
Precip Type Showers Tstms Showers Showers
Chance Precip (%) 20 40 40 30
Temp (24h trend) 73 (-3) 91 (+1) 73 91
RH % (24h trend) 96 (+3) 58 (-7) 96 60
Wind 20ft/early(mph) E 14 E 12 E 16 E 10
Wind 20ft/late(mph) SE 10 E 17 SE 11 E 16
Mixing Hgt(ft-agl/msl) 4880 5450
Transport Wnd (mph) E 15 E 12
Vent Rate (kt-ft) 63440 54500
Dispersion 5 5
DSI 4 6 5 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ017-030800-
Northern Hills-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Pcldy Mclear Pcldy
Precip Type Showers Tstms Showers Tstms
Chance Precip (%) 10 60 20 40
Temp (24h trend) 71 (-2) 91 (+2) 71 90
RH % (24h trend) 97 (+2) 60 (-6) 96 62
Wind 20ft/early(mph) E 12 E 10 E 13 E 9
Wind 20ft/late(mph) SE 8 E 16 SE 9 NE 13
Mixing Hgt(ft-agl/msl) 5380 5560
Transport Wnd (mph) E 13 E 8
Vent Rate (kt-ft) 59180 38920
Dispersion 5 5
DSI 2 6 3 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ018-030800-
West Coast-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Pcldy Mclear Pcldy
Precip Type None Tstms Showers Tstms
Chance Precip (%) 0 40 0 60
Temp (24h trend) 74 (-1) 92 (0) 74 92
RH % (24h trend) 95 (+3) 57 (-5) 95 59
Wind 20ft/early(mph) E 12 E 13 E 12 E 10
Wind 20ft/late(mph) E 11 E 13 E 10 E 11
Mixing Hgt(ft-agl/msl) 4900 4890
Transport Wnd (mph) E 10 E 7
Vent Rate (kt-ft) 44100 29340
Dispersion 5 5
DSI 3 6 3 5
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ019-030800-
Eastern Interior-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Showers Tstms Showers Showers
Chance Precip (%) 40 60 30 20
Temp (24h trend) 72 (-3) 90 (+2) 72 90
RH % (24h trend) 96 (+3) 58 (-6) 95 58
Wind 20ft/early(mph) E 12 E 11 E 12 E 9
Wind 20ft/late(mph) SE 12 E 11 E 12 E 11
Mixing Hgt(ft-agl/msl) 5300 7050
Transport Wnd (mph) E 15 E 9
Vent Rate (kt-ft) 68900 56400
Dispersion 5 5
DSI 4 6 3 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ022-030800-
Luquillo Mountain Range-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Showers Tstms Tstms Showers
Chance Precip (%) 40 60 40 30
Temp (24h trend) 70 (-3) 86 (+3) 70 86
RH % (24h trend) 98 (+2) 61 (-9) 98 61
Wind 20ft/early(mph) E 10 E 10 E 9 E 9
Wind 20ft/late(mph) E 9 E 10 E 9 E 9
Mixing Hgt(ft-agl/msl) 3890 4890
Transport Wnd (mph) E 15 E 12
Vent Rate (kt-ft) 50570 48900
Dispersion 5 5
DSI 5 6 5 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ023-030800-
Central Mountain Range-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Pcldy Mclear Pcldy
Precip Type Showers Tstms Showers Tstms
Chance Precip (%) 10 60 10 60
Temp (24h trend) 68 (-3) 87 (+3) 68 87
RH % (24h trend) 97 (+3) 61 (-9) 96 64
Wind 20ft/early(mph) E 6 E 9 E 9 E 6
Wind 20ft/late(mph) E 5 E 9 E 8 E 8
Mixing Hgt(ft-agl/msl) 5970 6130
Transport Wnd (mph) E 12 E 7
Vent Rate (kt-ft) 59700 36780
Dispersion 5 5
DSI 2 6 1 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ024-030800-
Cayey Mountain Range-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Showers Tstms Showers Showers
Chance Precip (%) 40 60 30 20
Temp (24h trend) 70 (-3) 86 (+2) 70 86
RH % (24h trend) 99 (+2) 61 (-7) 99 61
Wind 20ft/early(mph) E 9 E 10 E 9 E 8
Wind 20ft/late(mph) E 8 E 10 E 9 E 10
Mixing Hgt(ft-agl/msl) 4580 5850
Transport Wnd (mph) E 14 E 10
Vent Rate (kt-ft) 54960 52650
Dispersion 5 5
DSI 4 6 4 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ025-030800-
Vieques-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers Showers
Chance Precip (%) 40 40 30 30
Temp (24h trend) 78 (-2) 90 (+1) 77 90
RH % (24h trend) 85 (+1) 57 (-5) 86 57
Wind 20ft/early(mph) E 14 E 14 E 16 E 13
Wind 20ft/late(mph) E 14 E 13 E 14 E 11
Mixing Hgt(ft-agl/msl) 3670 3520
Transport Wnd (mph) E 16 E 14
Vent Rate (kt-ft) 51380 42240
Dispersion 5 5
DSI 6 6 6 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ026-030800-
Culebra-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers Showers
Chance Precip (%) 30 40 30 20
Temp (24h trend) 79 (-2) 92 (+3) 79 92
RH % (24h trend) 84 (+1) 56 (-9) 85 58
Wind 20ft/early(mph) E 14 E 14 E 14 E 13
Wind 20ft/late(mph) E 14 E 14 E 14 E 11
Mixing Hgt(ft-agl/msl) 3610 3500
Transport Wnd (mph) E 18 E 15
Vent Rate (kt-ft) 57760 45500
Dispersion 5 5
DSI 6 6 6 6
RH Recovery Excellent Excellent
Remarks...None.
$$
PRZ027-030800-
Southwest Coastal Plains and Mona Island-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Mclear Mclear Mclear Pcldy
Precip Type Showers Showers None Showers
Chance Precip (%) 20 20 0 30
Temp (24h trend) 75 (-2) 93 (+2) 75 93
RH % (24h trend) 89 (+2) 49 (-7) 86 47
Wind 20ft/early(mph) E 16 E 18 E 17 E 14
Wind 20ft/late(mph) E 16 SE 19 E 13 SE 16
Mixing Hgt(ft-agl/msl) 5120 5290
Transport Wnd (mph) E 17 E 10
Vent Rate (kt-ft) 76800 47610
Dispersion 5 5
DSI 4 6 4 6
RH Recovery Excellent Excellent
Remarks...None.
$$
VIZ001-030800-
Saint Thomas and Saint John-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Showers Showers Showers Showers
Chance Precip (%) 30 40 20 10
Temp (24h trend) 77 (-3) 88 (+1) 77 88
RH % (24h trend) 86 (+2) 61 (-6) 87 61
Wind 20ft/early(mph) E 13 E 14 E 14 E 12
Wind 20ft/late(mph) E 14 E 14 E 14 E 12
Mixing Hgt(ft-agl/msl) 3460 3480
Transport Wnd (mph) E 18 E 16
Vent Rate (kt-ft) 55360 48720
Dispersion 5 5
DSI 6 6 6 6
RH Recovery Excellent Excellent
Remarks...None.
$$
VIZ002-030800-
St Croix-
330 PM AST Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover Pcldy Pcldy Pcldy Mclear
Precip Type Showers Showers Showers Showers
Chance Precip (%) 30 40 30 10
Temp (24h trend) 78 (-2) 91 (+2) 78 91
RH % (24h trend) 86 (0) 61 (-5) 86 61
Wind 20ft/early(mph) E 13 E 14 E 13 E 12
Wind 20ft/late(mph) E 13 E 13 E 13 E 12
Mixing Hgt(ft-agl/msl) 4180 4610
Transport Wnd (mph) E 16 E 16
Vent Rate (kt-ft) 58520 64540
Dispersion 5 5
DSI 6 6 6 6
RH Recovery Excellent Excellent
Remarks...None.
$$