Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
903
FNCA52 TJSJ 060901
FWFSJU
Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
501 AM AST Sun Jul 6 2025
.DISCUSSION...
The fire danger risk is elevated today as winds back from the east
and a drier air mass moves into the area. Persistent high-level
clouds may slightly reduce daytime heating, though they are
unlikely to significantly increase humidity or produce rainfall,
thus having minimal impact on lowering fire danger. Breezy
conditions combined with lower relative humidities, and very dry
and deteriorated soils and fuelsespecially in the driest
southern plains and hills of Puerto Ricowill support an increased
potential for fire spread. Refer to the latest Fire Danger
Statement (RFDSJU) for additional guidance.
PRZ014-071000-
Southeast Coastal Plains-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 0 10 10
Temp (24h trend) 91 (+1) 73 (-4) 91
RH % (24h trend) 43 (-16) 87 (+3) 45
Wind 20ft/early(mph) E 18 G23 NE 14 G18 E 19 G25
Wind 20ft/late(mph) E 18 G23 NE 14 G18 E 19 G25
Mixing Hgt(ft-agl/msl)5570 5750
Transport Wnd (mph) E 14 E 18
Vent Rate (kt-ft) 66840 92000
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ015-071000-
Southern Hills-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 10 0 30
Temp (24h trend) 88 (+4) 70 (-4) 87
RH % (24h trend) 55 (-16) 95 (+3) 56
Wind 20ft/early(mph) E 13 NE 11 E 14
Wind 20ft/late(mph) E 13 NE 11 E 14
Mixing Hgt(ft-agl/msl)5980 6440
Transport Wnd (mph) E 13 E 17
Vent Rate (kt-ft) 65780 96600
Dispersion 5 5
DSI 6 3 6
RH Recovery Excellent
Remarks...None.
$$
PRZ016-071000-
North Coastal Plains-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 0 10 20
Temp (24h trend) 90 (+1) 75 (-2) 88
RH % (24h trend) 57 (-12) 95 (+4) 63
Wind 20ft/early(mph) E 19 G23 E 18 E 20 G23
Wind 20ft/late(mph) E 19 G23 E 18 E 20 G23
Mixing Hgt(ft-agl/msl)5390 5610
Transport Wnd (mph) E 13 E 18
Vent Rate (kt-ft) 59290 89760
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ017-071000-
Northern Hills-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Clear Mclear
Precip Type Showers None Showers
Chance Precip (%) 10 0 30
Temp (24h trend) 88 (+1) 72 (-2) 87
RH % (24h trend) 62 (-8) 98 (+3) 63
Wind 20ft/early(mph) E 17 E 14 E 18
Wind 20ft/late(mph) E 17 E 14 E 18
Mixing Hgt(ft-agl/msl)6060 6140
Transport Wnd (mph) E 12 E 16
Vent Rate (kt-ft) 60600 85960
Dispersion 5 5
DSI 6 5 6
RH Recovery Excellent
Remarks...None.
$$
PRZ018-071000-
West Coast-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Clear Mclear
Precip Type Showers None Showers
Chance Precip (%) 30 0 40
Temp (24h trend) 91 (0) 71 (-3) 90
RH % (24h trend) 59 (-6) 98 (+1) 57
Wind 20ft/early(mph) SE 12 E 16 E 14
Wind 20ft/late(mph) SE 12 E 16 E 14
Mixing Hgt(ft-agl/msl)5200 5970
Transport Wnd (mph) E 9 E 12
Vent Rate (kt-ft) 41600 59700
Dispersion 5 5
DSI 6 3 6
RH Recovery Excellent
Remarks...None.
$$
PRZ019-071000-
Eastern Interior-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 20 20 20
Temp (24h trend) 89 (+3) 72 (-4) 88
RH % (24h trend) 57 (-13) 96 (+6) 61
Wind 20ft/early(mph) E 12 NE 13 E 14
Wind 20ft/late(mph) E 12 NE 13 E 14
Mixing Hgt(ft-agl/msl)6040 6430
Transport Wnd (mph) E 14 E 17
Vent Rate (kt-ft) 72480 96450
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ022-071000-
Luquillo Mountain Range-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Pcldy Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 40 40 30
Temp (24h trend) 83 (+3) 69 (-4) 82
RH % (24h trend) 64 (-18) 100 (+4) 72
Wind 20ft/early(mph) E 11 NE 10 E 12
Wind 20ft/late(mph) E 11 NE 10 E 12
Mixing Hgt(ft-agl/msl)4640 4920
Transport Wnd (mph) E 14 E 18
Vent Rate (kt-ft) 55680 78720
Dispersion 5 5
DSI 6 5 6
RH Recovery Excellent
Remarks...None.
$$
PRZ023-071000-
Central Mountain Range-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Clear Mclear
Precip Type Showers None Tstms
Chance Precip (%) 30 0 50
Temp (24h trend) 87 (+4) 68 (-3) 86
RH % (24h trend) 64 (-10) 100 (+3) 62
Wind 20ft/early(mph) E 11 NE 13 E 12
Wind 20ft/late(mph) E 11 NE 13 E 12
Mixing Hgt(ft-agl/msl)7280 6840
Transport Wnd (mph) E 8 E 13
Vent Rate (kt-ft) 50960 75240
Dispersion 5 5
DSI 5 3 5
RH Recovery Excellent
Remarks...None.
$$
PRZ024-071000-
Cayey Mountain Range-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 10 20 10
Temp (24h trend) 84 (+3) 70 (-3) 83
RH % (24h trend) 62 (-16) 99 (+1) 67
Wind 20ft/early(mph) E 11 NE 9 E 13
Wind 20ft/late(mph) E 11 NE 9 E 13
Mixing Hgt(ft-agl/msl)5420 5370
Transport Wnd (mph) E 14 E 18
Vent Rate (kt-ft) 65040 85920
Dispersion 5 5
DSI 6 4 6
RH Recovery Excellent
Remarks...None.
$$
PRZ025-071000-
Vieques-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 40 30
Temp (24h trend) 88 (-1) 78 (0) 88
RH % (24h trend) 57 (-7) 82 (-2) 58
Wind 20ft/early(mph) E 13 NE 18 G22 E 17 G21
Wind 20ft/late(mph) E 13 NE 18 G22 E 17 G21
Mixing Hgt(ft-agl/msl)3590 4090
Transport Wnd (mph) E 18 E 22
Vent Rate (kt-ft) 57440 77710
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ026-071000-
Culebra-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Pcldy Pcldy
Precip Type Showers Showers Showers
Chance Precip (%) 30 40 30
Temp (24h trend) 90 (+1) 79 (0) 90
RH % (24h trend) 57 (-11) 86 (0) 59
Wind 20ft/early(mph) E 13 NE 18 G22 E 17 G21
Wind 20ft/late(mph) E 13 NE 18 G22 E 17 G21
Mixing Hgt(ft-agl/msl)3680 4020
Transport Wnd (mph) E 18 E 21
Vent Rate (kt-ft) 58880 72360
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
PRZ027-071000-
Southwest Coastal Plains and Mona Island-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Clear Mclear
Precip Type Showers None Showers
Chance Precip (%) 10 0 10
Temp (24h trend) 92 (+1) 74 (-3) 91
RH % (24h trend) 47 (-11) 85 (-3) 49
Wind 20ft/early(mph) SE 18 G23 E 12 E 20 G27
Wind 20ft/late(mph) SE 18 G23 E 12 E 20 G27
Mixing Hgt(ft-agl/msl)5530 5980
Transport Wnd (mph) E 15 E 17
Vent Rate (kt-ft) 71890 89700
Dispersion 5 5
DSI 6 3 6
RH Recovery Excellent
Remarks...None.
$$
VIZ001-071000-
Saint Thomas and Saint John-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Pcldy Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 30 30 20
Temp (24h trend) 87 (+3) 76 (-2) 88
RH % (24h trend) 62 (-15) 86 (-2) 62
Wind 20ft/early(mph) E 13 G17 NE 19 G24 E 18 G22
Wind 20ft/late(mph) E 13 G17 NE 19 G24 E 18 G22
Mixing Hgt(ft-agl/msl)3770 3980
Transport Wnd (mph) E 18 E 24
Vent Rate (kt-ft) 60320 83580
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
VIZ002-071000-
St Croix-
501 AM AST Sun Jul 6 2025
Today Tonight Mon
Cloud Cover Mclear Mclear Mclear
Precip Type Showers Showers Showers
Chance Precip (%) 20 20 20
Temp (24h trend) 87 (-1) 78 (+1) 88
RH % (24h trend) 62 (-5) 82 (-7) 62
Wind 20ft/early(mph) E 13 G17 NE 18 G22 E 17 G21
Wind 20ft/late(mph) E 13 G17 NE 18 G22 E 17 G21
Mixing Hgt(ft-agl/msl)4440 4820
Transport Wnd (mph) E 16 E 22
Vent Rate (kt-ft) 62160 91580
Dispersion 5 5
DSI 6 6 6
RH Recovery Excellent
Remarks...None.
$$
$$