Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR

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796
FNCA52 TJSJ 070826
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
426 AM AST Fri Feb 7 2025

.DISCUSSION...

Favorable conditions for fire spread will persist today,
particularly across the southern coastal plains, southern hills,
and western Puerto Rico. Breezy east-northeasterly winds (15-20
mph with stronger gusts) are expected, with a dry slot moving in
today during peak hours that will lower humidity to the low-40s.
Drying soils, as indicated by KBDI values, along with available
fuels, support the potential for fire spread. These conditions
result in an elevated fire danger threat, with a Fire Danger
Statement (RFDSJU) in effect for these areas.


PRZ014-080830-
Southeast Coastal Plains-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           40           40
Temp (24h trend)      89 (+3)      69 (-2)      90
RH % (24h trend)      44 (-5)      91 (+7)      46
Wind 20ft/early(mph)  E 19 G25     NE 13 G17    E 20 G26
Wind 20ft/late(mph)   E 19 G25     NE 13 G17    E 20 G26
Mixing Hgt(ft-agl/msl)5680                      6340
Transport Wnd (mph)   E 21                      E 18
Vent Rate (kt-ft)     102240                    101440
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-080830-
Southern Hills-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           30           30
Temp (24h trend)      85 (+4)      66 (-2)      85
RH % (24h trend)      56 (-7)      98 (+8)      57
Wind 20ft/early(mph)  E 17         NE 13        E 16
Wind 20ft/late(mph)   E 17         NE 13        E 16
Mixing Hgt(ft-agl/msl)6600                      6610
Transport Wnd (mph)   E 20                      E 18
Vent Rate (kt-ft)     112200                    105760
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-080830-
North Coastal Plains-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           30
Temp (24h trend)      85 (+1)      69 (-2)      85
RH % (24h trend)      64 (-2)      100 (+7)     66
Wind 20ft/early(mph)  E 20 G23     E 18 G21     E 18 G21
Wind 20ft/late(mph)   E 20 G23     E 18 G21     E 18 G21
Mixing Hgt(ft-agl/msl)5010                      4990
Transport Wnd (mph)   E 23                      E 22
Vent Rate (kt-ft)     100200                    94810
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-080830-
Northern Hills-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           20
Temp (24h trend)      83 (+2)      67 (-2)      83
RH % (24h trend)      65 (-3)      100 (+5)     68
Wind 20ft/early(mph)  NE 18        E 16         NE 17 G19
Wind 20ft/late(mph)   NE 18        E 16         NE 17 G19
Mixing Hgt(ft-agl/msl)5740                      5630
Transport Wnd (mph)   E 21                      E 21
Vent Rate (kt-ft)     103320                    101340
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-080830-
West Coast-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           10           50
Temp (24h trend)      87 (+1)      67 (-2)      88
RH % (24h trend)      54 (-7)      98 (+7)      55
Wind 20ft/early(mph)  E 16         NE 20        E 19
Wind 20ft/late(mph)   E 16         NE 20        E 19
Mixing Hgt(ft-agl/msl)6080                      5700
Transport Wnd (mph)   E 15                      E 17
Vent Rate (kt-ft)     79040                     85500
Dispersion            5                         5
DSI                   5            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-080830-
Eastern Interior-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           40
Temp (24h trend)      82 (+1)      67 (-2)      83
RH % (24h trend)      66 (+2)      99 (+5)      68
Wind 20ft/early(mph)  E 17         E 14         NE 16
Wind 20ft/late(mph)   E 17         E 14         NE 16
Mixing Hgt(ft-agl/msl)5130                      5520
Transport Wnd (mph)   E 20                      E 18
Vent Rate (kt-ft)     87210                     88320
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-080830-
Luquillo Mountain Range-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           40
Temp (24h trend)      78 (+2)      65 (-3)      78
RH % (24h trend)      74 (+2)      100 (+4)     77
Wind 20ft/early(mph)  E 14 G17     E 12         E 13
Wind 20ft/late(mph)   E 14 G17     E 12         E 13
Mixing Hgt(ft-agl/msl)3920                      4260
Transport Wnd (mph)   E 23                      E 20
Vent Rate (kt-ft)     78400                     72420
Dispersion            5                         5
DSI                   6            5            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-080830-
Central Mountain Range-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           20           40
Temp (24h trend)      82 (+5)      63 (-3)      82
RH % (24h trend)      61 (-9)      100 (+4)     63
Wind 20ft/early(mph)  NE 13        NE 16        NE 16
Wind 20ft/late(mph)   NE 13        NE 16        NE 16
Mixing Hgt(ft-agl/msl)7200                      6600
Transport Wnd (mph)   E 16                      E 18
Vent Rate (kt-ft)     100800                    105600
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-080830-
Cayey Mountain Range-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           50           40
Temp (24h trend)      78 (+1)      65 (-2)      79
RH % (24h trend)      70 (+2)      100 (+3)     71
Wind 20ft/early(mph)  E 14         NE 11        NE 13
Wind 20ft/late(mph)   E 14         NE 11        NE 13
Mixing Hgt(ft-agl/msl)4890                      5190
Transport Wnd (mph)   E 23                      E 21
Vent Rate (kt-ft)     97800                     93420
Dispersion            5                         5
DSI                   6            4            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-080830-
Vieques-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           40           40
Temp (24h trend)      83 (-1)      70 (-3)      84
RH % (24h trend)      64 (+4)      99 (+11)     66
Wind 20ft/early(mph)  NE 19 G23    E 19 G23     NE 18 G22
Wind 20ft/late(mph)   NE 19 G23    E 19 G23     NE 18 G22
Mixing Hgt(ft-agl/msl)4260                      3530
Transport Wnd (mph)   E 26                      E 22
Vent Rate (kt-ft)     97980                     67070
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-080830-
Culebra-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           40           30
Temp (24h trend)      83 (0)       71 (-2)      83
RH % (24h trend)      68 (+4)      97 (+5)      68
Wind 20ft/early(mph)  E 19 G23     E 19 G24     E 18 G22
Wind 20ft/late(mph)   E 19 G23     E 19 G24     E 18 G22
Mixing Hgt(ft-agl/msl)4290                      3510
Transport Wnd (mph)   E 28                      E 23
Vent Rate (kt-ft)     102960                    70200
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-080830-
Southwest Coastal Plains and Mona Island-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           10           40
Temp (24h trend)      89 (+2)      68 (-3)      89
RH % (24h trend)      40 (-9)      95 (+10)     44
Wind 20ft/early(mph)  E 21 G28     E 19 G22     E 19 G24
Wind 20ft/late(mph)   E 21 G28     E 19 G22     E 19 G24
Mixing Hgt(ft-agl/msl)6230                      6500
Transport Wnd (mph)   E 17                      E 16
Vent Rate (kt-ft)     93450                     91000
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-080830-
Saint Thomas and Saint John-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           40           20
Temp (24h trend)      83 (0)       70 (-2)      83
RH % (24h trend)      66 (+3)      99 (+10)     66
Wind 20ft/early(mph)  E 19 G23     E 19 G23     E 18 G22
Wind 20ft/late(mph)   E 19 G23     E 19 G23     E 18 G22
Mixing Hgt(ft-agl/msl)4290                      3630
Transport Wnd (mph)   E 29                      E 23
Vent Rate (kt-ft)     107250                    72600
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-080830-
St Croix-
426 AM AST Fri Feb 7 2025

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           20
Temp (24h trend)      84 (+1)      71 (-3)      84
RH % (24h trend)      66 (+2)      96 (+9)      66
Wind 20ft/early(mph)  E 18 G23     E 18 G21     E 17 G21
Wind 20ft/late(mph)   E 18 G23     E 18 G21     E 17 G21
Mixing Hgt(ft-agl/msl)3990                      3990
Transport Wnd (mph)   E 25                      E 22
Vent Rate (kt-ft)     87780                     75810
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$


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