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

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699
FNCA52 TJSJ 060942
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
542 AM AST Tue May 6 2025

.DISCUSSION...

Showers and thunderstorms will develop across the interior and
western sections by the afternoon. Soils continues saturated
across Puerto Rico from last week unstable and wet pattern. Thus,
the risk of fire weather will remain low for the next few days.

PRZ014-070945-
Southeast Coastal Plains-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     30           10           60
Temp (24h trend)      89 (+2)      70 (-3)      88
RH % (24h trend)      48 (-13)     94 (+5)      54
Wind 20ft/early(mph)  E 12 G17     NE  9        E 11
Wind 20ft/late(mph)   E 12 G17     NE  9        E 11
Mixing Hgt(ft-agl/msl)4380                      3970
Transport Wnd (mph)   E  7                      E  5
Vent Rate (kt-ft)     26280                     15880
Dispersion            5                         5
DSI                   5            2            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-070945-
Southern Hills-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           10           70
Temp (24h trend)      85 (+3)      67 (-4)      85
RH % (24h trend)      62 (-12)     100 (+5)     64
Wind 20ft/early(mph)  E  9         NE  9        E  9
Wind 20ft/late(mph)   E  9         NE  9        E  9
Mixing Hgt(ft-agl/msl)4900                      4440
Transport Wnd (mph)   E  6                      E  3
Vent Rate (kt-ft)     24500                     13320
Dispersion            5                         5
DSI                   5            2            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-070945-
North Coastal Plains-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     20           40           50
Temp (24h trend)      86 (0)       71 (-2)      86
RH % (24h trend)      65 (-7)      100 (+3)     66
Wind 20ft/early(mph)  E 12         E 12         NE 12
Wind 20ft/late(mph)   E 12         E 12         NE 12
Mixing Hgt(ft-agl/msl)3860                      3550
Transport Wnd (mph)   E 10                      E  8
Vent Rate (kt-ft)     34740                     24850
Dispersion            5                         5
DSI                   6            4            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-070945-
Northern Hills-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     30           10           60
Temp (24h trend)      85 (+1)      68 (-3)      85
RH % (24h trend)      68 (-5)      100 (+1)     68
Wind 20ft/early(mph)  NE 10        E 10         NE 10
Wind 20ft/late(mph)   NE 10        E 10         NE 10
Mixing Hgt(ft-agl/msl)4670                      4210
Transport Wnd (mph)   E  7                      E  6
Vent Rate (kt-ft)     28020                     21050
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-070945-
West Coast-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           20           70
Temp (24h trend)      88 (+1)      69 (-3)      89
RH % (24h trend)      64 (-6)      100 (+3)     63
Wind 20ft/early(mph)  E 11         NE 14        E 11
Wind 20ft/late(mph)   E 11         NE 14        E 11
Mixing Hgt(ft-agl/msl)4460                      4220
Transport Wnd (mph)   E  5                      E  2
Vent Rate (kt-ft)     17840                     8440
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-070945-
Eastern Interior-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     40           40           60
Temp (24h trend)      87 (+4)      69 (-3)      86
RH % (24h trend)      62 (-11)     100 (+3)     64
Wind 20ft/early(mph)  E  9         E  9         E  9
Wind 20ft/late(mph)   E  9         E  9         E  9
Mixing Hgt(ft-agl/msl)4620                      4140
Transport Wnd (mph)   E  8                      NE  6
Vent Rate (kt-ft)     32340                     20700
Dispersion            5                         5
DSI                   5            2            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-070945-
Luquillo Mountain Range-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           40           50
Temp (24h trend)      82 (+4)      66 (-4)      81
RH % (24h trend)      67 (-13)     100 (+2)     69
Wind 20ft/early(mph)  E  9         E  6         E  8
Wind 20ft/late(mph)   E  9         E  6         E  8
Mixing Hgt(ft-agl/msl)3960                      4260
Transport Wnd (mph)   E  9                      NE  6
Vent Rate (kt-ft)     31680                     21300
Dispersion            5                         5
DSI                   6            2            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-070945-
Central Mountain Range-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           70
Temp (24h trend)      83 (+3)      65 (-4)      83
RH % (24h trend)      68 (-9)      100 (+1)     68
Wind 20ft/early(mph)  E  8         NE 10        E 10
Wind 20ft/late(mph)   E  8         NE 10        E 10
Mixing Hgt(ft-agl/msl)5450                      4780
Transport Wnd (mph)   E  5                      NE  2
Vent Rate (kt-ft)     21800                     9560
Dispersion            5                         5
DSI                   5            1            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-070945-
Cayey Mountain Range-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           30           70
Temp (24h trend)      82 (+3)      67 (-3)      81
RH % (24h trend)      69 (-11)     100 (0)      71
Wind 20ft/early(mph)  E  8         NE  6        E  8
Wind 20ft/late(mph)   E  8         NE  6        E  8
Mixing Hgt(ft-agl/msl)4560                      4330
Transport Wnd (mph)   E  8                      NE  6
Vent Rate (kt-ft)     31920                     21650
Dispersion            5                         5
DSI                   5            2            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-070945-
Vieques-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           40           30
Temp (24h trend)      88 (+2)      72 (-3)      87
RH % (24h trend)      56 (-11)     98 (+6)      59
Wind 20ft/early(mph)  E 10         E 12         NE  9
Wind 20ft/late(mph)   E 10         E 12         NE  9
Mixing Hgt(ft-agl/msl)3270                      3150
Transport Wnd (mph)   E 13                      NE 12
Vent Rate (kt-ft)     35970                     31500
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-070945-
Culebra-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           40           40
Temp (24h trend)      89 (+3)      74 (-3)      88
RH % (24h trend)      58 (-10)     96 (+7)      59
Wind 20ft/early(mph)  E 10         E 12         NE  9
Wind 20ft/late(mph)   E 10         E 12         NE  9
Mixing Hgt(ft-agl/msl)3240                      3040
Transport Wnd (mph)   E 13                      NE 13
Vent Rate (kt-ft)     35640                     33440
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-070945-
Southwest Coastal Plains and Mona Island-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     40           20           60
Temp (24h trend)      90 (+2)      71 (-3)      90
RH % (24h trend)      48 (-11)     93 (+4)      50
Wind 20ft/early(mph)  E 11         NE 14        SE 10
Wind 20ft/late(mph)   E 11         NE 14        SE 10
Mixing Hgt(ft-agl/msl)4940                      4370
Transport Wnd (mph)   E  6                      SE  3
Vent Rate (kt-ft)     24700                     13110
Dispersion            5                         5
DSI                   5            2            5
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-070945-
Saint Thomas and Saint John-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           None         Showers      Showers
Chance Precip (%)     0            40           30
Temp (24h trend)      86 (+1)      73 (-3)      86
RH % (24h trend)      65 (-2)      97 (+6)      62
Wind 20ft/early(mph)  E 11         E 12         E  9
Wind 20ft/late(mph)   E 11         E 12         E  9
Mixing Hgt(ft-agl/msl)3300                      2910
Transport Wnd (mph)   E 14                      NE 13
Vent Rate (kt-ft)     39600                     32010
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-070945-
St Croix-
542 AM AST Tue May 6 2025

                      Today        Tonight      Wed

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           40           30
Temp (24h trend)      86 (+1)      74 (-1)      85
RH % (24h trend)      67 (-4)      98 (+4)      65
Wind 20ft/early(mph)  E 10         E 10         E  8
Wind 20ft/late(mph)   E 10         E 10         E  8
Mixing Hgt(ft-agl/msl)4290                      3900
Transport Wnd (mph)   E 10                      E  8
Vent Rate (kt-ft)     38610                     27300
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$


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