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

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475
FNCA52 TJSJ 020759
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
359 AM AST Wed Jul 2 2025

.DISCUSSION...

Passing showers continue to move across the local area today,
maintaining relative humidities at 50% or higher. Winds will
remain gusty, out of the southeast at around 15 to 20 mph. So far,
the risk for elevated fire danger is expected to be low to
moderate.


PRZ014-030800-
Southeast Coastal Plains-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           50           20
Temp (24h trend)      91 (+2)      73 (-3)      90
RH % (24h trend)      53 (-3)      94 (+11)     55
Wind 20ft/early(mph)  SE 16 G20    E 12         SE 14 G19
Wind 20ft/late(mph)   SE 16 G20    E 12         SE 14 G19
Mixing Hgt(ft-agl/msl)5020                      4610
Transport Wnd (mph)   E 18                      E 15
Vent Rate (kt-ft)     80320                     59930
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-030800-
Southern Hills-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           40           10
Temp (24h trend)      87 (+4)      69 (-4)      86
RH % (24h trend)      59 (-4)      100 (+13)    61
Wind 20ft/early(mph)  SE 12        E 11         SE 12
Wind 20ft/late(mph)   SE 12        E 11         SE 12
Mixing Hgt(ft-agl/msl)5830                      5330
Transport Wnd (mph)   E 17                      E 13
Vent Rate (kt-ft)     87450                     58630
Dispersion            5                         5
DSI                   6            4            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-030800-
North Coastal Plains-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           50           30
Temp (24h trend)      90 (+4)      73 (-4)      90
RH % (24h trend)      61 (-5)      98 (+9)      60
Wind 20ft/early(mph)  E 20 G23     E 18         E 19
Wind 20ft/late(mph)   E 20 G23     E 18         E 19
Mixing Hgt(ft-agl/msl)5710                      5210
Transport Wnd (mph)   E 17                      SE 12
Vent Rate (kt-ft)     85650                     52100
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-030800-
Northern Hills-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           20           30
Temp (24h trend)      88 (+3)      71 (-3)      87
RH % (24h trend)      60 (-6)      99 (+8)      63
Wind 20ft/early(mph)  E 18         E 16         E 14
Wind 20ft/late(mph)   E 18         E 16         E 14
Mixing Hgt(ft-agl/msl)7120                      6180
Transport Wnd (mph)   E 15                      SE 10
Vent Rate (kt-ft)     92560                     55620
Dispersion            5                         5
DSI                   6            4            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-030800-
West Coast-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     20           10           10
Temp (24h trend)      90 (+2)      70 (-3)      89
RH % (24h trend)      58 (-6)      100 (+9)     61
Wind 20ft/early(mph)  SE 16        E 16         E 14
Wind 20ft/late(mph)   SE 16        E 16         E 14
Mixing Hgt(ft-agl/msl)5330                      4730
Transport Wnd (mph)   E 16                      SE 12
Vent Rate (kt-ft)     74620                     47300
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-030800-
Eastern Interior-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           60           30
Temp (24h trend)      87 (+3)      70 (-5)      88
RH % (24h trend)      63 (-2)      100 (+9)     60
Wind 20ft/early(mph)  E 13         E 13         SE 11
Wind 20ft/late(mph)   E 13         E 13         SE 11
Mixing Hgt(ft-agl/msl)5680                      5880
Transport Wnd (mph)   SE 16                     SE 12
Vent Rate (kt-ft)     79520                     58800
Dispersion            5                         5
DSI                   6            4            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-030800-
Luquillo Mountain Range-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           60           30
Temp (24h trend)      83 (+4)      67 (-5)      84
RH % (24h trend)      71 (-3)      100 (+3)     68
Wind 20ft/early(mph)  E 12         E 10         SE 10
Wind 20ft/late(mph)   E 12         E 10         SE 10
Mixing Hgt(ft-agl/msl)3740                      4230
Transport Wnd (mph)   E 17                      SE 13
Vent Rate (kt-ft)     56100                     46530
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-030800-
Central Mountain Range-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           30           20
Temp (24h trend)      86 (+5)      67 (-4)      85
RH % (24h trend)      61 (-6)      100 (+8)     65
Wind 20ft/early(mph)  SE 11        E  9         SE  9
Wind 20ft/late(mph)   SE 11        E  9         SE  9
Mixing Hgt(ft-agl/msl)7230                      6630
Transport Wnd (mph)   SE 14                     SE 10
Vent Rate (kt-ft)     86760                     59670
Dispersion            5                         5
DSI                   6            2            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-030800-
Cayey Mountain Range-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           50           30
Temp (24h trend)      82 (+2)      68 (-4)      83
RH % (24h trend)      71 (+2)      100 (+3)     67
Wind 20ft/early(mph)  E 11         E  9         SE 10
Wind 20ft/late(mph)   E 11         E  9         SE 10
Mixing Hgt(ft-agl/msl)4490                      4770
Transport Wnd (mph)   E 17                      SE 13
Vent Rate (kt-ft)     67350                     52470
Dispersion            5                         5
DSI                   6            4            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-030800-
Vieques-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           30           30
Temp (24h trend)      89 (+1)      74 (-2)      89
RH % (24h trend)      58 (0)       94 (+6)      57
Wind 20ft/early(mph)  E 16 G20     E 16 G20     SE 11
Wind 20ft/late(mph)   E 16 G20     E 16 G20     SE 11
Mixing Hgt(ft-agl/msl)3450                      3310
Transport Wnd (mph)   E 23                      E 16
Vent Rate (kt-ft)     69000                     46340
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-030800-
Culebra-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           30           20
Temp (24h trend)      90 (+2)      75 (-2)      90
RH % (24h trend)      61 (0)       96 (+7)      59
Wind 20ft/early(mph)  E 17 G21     E 17 G21     SE 11
Wind 20ft/late(mph)   E 17 G21     E 17 G21     SE 11
Mixing Hgt(ft-agl/msl)3500                      3270
Transport Wnd (mph)   E 22                      E 17
Vent Rate (kt-ft)     66500                     49050
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-030800-
Southwest Coastal Plains and Mona Island-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           20           10
Temp (24h trend)      91 (+2)      73 (-3)      90
RH % (24h trend)      55 (-2)      93 (+13)     57
Wind 20ft/early(mph)  SE 20 G26    E 20 G25     SE 19 G25
Wind 20ft/late(mph)   SE 20 G26    E 20 G25     SE 19 G25
Mixing Hgt(ft-agl/msl)5350                      4740
Transport Wnd (mph)   E 21                      E 18
Vent Rate (kt-ft)     96300                     75840
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-030800-
Saint Thomas and Saint John-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           20           20
Temp (24h trend)      86 (0)       73 (-4)      86
RH % (24h trend)      67 (+4)      99 (+10)     66
Wind 20ft/early(mph)  E 17 G21     E 18 G22     SE 11
Wind 20ft/late(mph)   E 17 G21     E 18 G22     SE 11
Mixing Hgt(ft-agl/msl)3480                      3150
Transport Wnd (mph)   E 22                      E 17
Vent Rate (kt-ft)     66120                     47250
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-030800-
St Croix-
359 AM AST Wed Jul 2 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           50           20
Temp (24h trend)      87 (-1)      74 (-4)      90
RH % (24h trend)      63 (+2)      93 (+7)      58
Wind 20ft/early(mph)  E 16 G20     E 14 G18     E 12
Wind 20ft/late(mph)   E 16 G20     E 14 G18     E 12
Mixing Hgt(ft-agl/msl)4480                      4070
Transport Wnd (mph)   E 21                      SE 15
Vent Rate (kt-ft)     80640                     52910
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$


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