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

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143
FNCA52 TJSJ 050921
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
521 AM AST Wed Feb 5 2025

.DISCUSSION...

For today, RH values are forecast to drop into the mid to upper
40s across the southern coastal plains early in the day. However,
as the winds increase due to the influence of the sea breeze, RH
are expected to increase later in the day. In addition, increased
cloudiness and scattered showers are possible early this afternoon
across the western and southwestern areas. Given the expected
conditions, there is a low fire danger risk today.

PRZ014-060930-
Southeast Coastal Plains-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           40           30
Temp (24h trend)      88 (+1)      69 (-2)      89
RH % (24h trend)      45 (-3)      89 (+1)      47
Wind 20ft/early(mph)  E 18 G24     NE 12        E 20 G26
Wind 20ft/late(mph)   E 18 G24     NE 12        E 20 G26
Mixing Hgt(ft-agl/msl)4870                      5290
Transport Wnd (mph)   E 14                      E 20
Vent Rate (kt-ft)     58440                     89930
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-060930-
Southern Hills-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           30           30
Temp (24h trend)      83 (+2)      66 (-3)      84
RH % (24h trend)      58 (-4)      97 (+5)      57
Wind 20ft/early(mph)  E 13         NE 12        E 16 G19
Wind 20ft/late(mph)   E 13         NE 12        E 16 G19
Mixing Hgt(ft-agl/msl)5240                      5770
Transport Wnd (mph)   E 14                      E 20
Vent Rate (kt-ft)     62880                     98090
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-060930-
North Coastal Plains-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           40
Temp (24h trend)      84 (0)       69 (-2)      84
RH % (24h trend)      63 (-4)      99 (+1)      63
Wind 20ft/early(mph)  E 17 G20     E 16 G19     E 21 G24
Wind 20ft/late(mph)   E 17 G20     E 16 G19     E 21 G24
Mixing Hgt(ft-agl/msl)4450                      4920
Transport Wnd (mph)   E 17                      E 23
Vent Rate (kt-ft)     66750                     98400
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-060930-
Northern Hills-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           40           40
Temp (24h trend)      83 (+2)      68 (-1)      83
RH % (24h trend)      67 (-1)      99 (0)       66
Wind 20ft/early(mph)  NE 14 G17    E 13         E 18 G22
Wind 20ft/late(mph)   NE 14 G17    E 13         E 18 G22
Mixing Hgt(ft-agl/msl)4820                      5330
Transport Wnd (mph)   E 15                      E 21
Vent Rate (kt-ft)     62660                     95940
Dispersion            5                         5
DSI                   6            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-060930-
West Coast-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           40           60
Temp (24h trend)      86 (0)       66 (-3)      87
RH % (24h trend)      63 (+4)      98 (+3)      56
Wind 20ft/early(mph)  E 17         NE 18        E 18 G21
Wind 20ft/late(mph)   E 17         NE 18        E 18 G21
Mixing Hgt(ft-agl/msl)5020                      5190
Transport Wnd (mph)   E 15                      E 16
Vent Rate (kt-ft)     65260                     72660
Dispersion            5                         5
DSI                   6            4            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-060930-
Eastern Interior-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           60           60
Temp (24h trend)      83 (+2)      66 (-3)      82
RH % (24h trend)      61 (-5)      99 (+1)      63
Wind 20ft/early(mph)  E 13         NE 13        E 17 G20
Wind 20ft/late(mph)   E 13         NE 13        E 17 G20
Mixing Hgt(ft-agl/msl)4700                      4930
Transport Wnd (mph)   E 15                      E 21
Vent Rate (kt-ft)     61100                     88740
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-060930-
Luquillo Mountain Range-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           60           60
Temp (24h trend)      78 (+3)      65 (-3)      78
RH % (24h trend)      67 (-10)     100 (+1)     70
Wind 20ft/early(mph)  E 11         NE 10        E 14 G19
Wind 20ft/late(mph)   E 11         NE 10        E 14 G19
Mixing Hgt(ft-agl/msl)4120                      4800
Transport Wnd (mph)   E 15                      E 23
Vent Rate (kt-ft)     53560                     96000
Dispersion            5                         5
DSI                   5            5            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-060930-
Central Mountain Range-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           50
Temp (24h trend)      81 (+3)      63 (-3)      81
RH % (24h trend)      66 (-2)      99 (+2)      63
Wind 20ft/early(mph)  E 12         E 12         E 14
Wind 20ft/late(mph)   E 12         E 12         E 14
Mixing Hgt(ft-agl/msl)5710                      5930
Transport Wnd (mph)   E 12                      E 17
Vent Rate (kt-ft)     57100                     88950
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-060930-
Cayey Mountain Range-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           60
Temp (24h trend)      79 (+2)      65 (-2)      78
RH % (24h trend)      65 (-5)      99 (0)       68
Wind 20ft/early(mph)  E 12         NE  9        E 14 G17
Wind 20ft/late(mph)   E 12         NE  9        E 14 G17
Mixing Hgt(ft-agl/msl)4740                      4680
Transport Wnd (mph)   E 16                      E 22
Vent Rate (kt-ft)     66360                     88920
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-060930-
Vieques-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           50           40
Temp (24h trend)      84 (0)       72 (-1)      85
RH % (24h trend)      59 (-5)      91 (+1)      59
Wind 20ft/early(mph)  E 14 G18     NE 16 G20    E 20 G25
Wind 20ft/late(mph)   E 14 G18     NE 16 G20    E 20 G25
Mixing Hgt(ft-agl/msl)3850                      4010
Transport Wnd (mph)   E 17                      E 25
Vent Rate (kt-ft)     57750                     88220
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-060930-
Culebra-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           40
Temp (24h trend)      84 (0)       72 (-2)      84
RH % (24h trend)      59 (-8)      93 (+4)      60
Wind 20ft/early(mph)  E 14 G18     NE 16 G20    E 20 G25
Wind 20ft/late(mph)   E 14 G18     NE 16 G20    E 20 G25
Mixing Hgt(ft-agl/msl)4050                      4030
Transport Wnd (mph)   E 17                      E 26
Vent Rate (kt-ft)     60750                     92690
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-060930-
Southwest Coastal Plains and Mona Island-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           30           20
Temp (24h trend)      88 (+1)      67 (-4)      89
RH % (24h trend)      49 (+1)      93 (+3)      46
Wind 20ft/early(mph)  E 20 G26     NE 17 G21    E 24 G31
Wind 20ft/late(mph)   E 20 G26     NE 17 G21    E 24 G31
Mixing Hgt(ft-agl/msl)5580                      6080
Transport Wnd (mph)   E 12                      E 18
Vent Rate (kt-ft)     55800                     97280
Dispersion            5                         5
DSI                   5            3            5
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-060930-
Saint Thomas and Saint John-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           40
Temp (24h trend)      83 (0)       71 (-3)      83
RH % (24h trend)      61 (-4)      93 (+6)      60
Wind 20ft/early(mph)  E 14 G19     E 17 G21     E 20 G25
Wind 20ft/late(mph)   E 14 G19     E 17 G21     E 20 G25
Mixing Hgt(ft-agl/msl)3930                      4110
Transport Wnd (mph)   E 18                      E 28
Vent Rate (kt-ft)     62880                     98640
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-060930-
St Croix-
521 AM AST Wed Feb 5 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           40           30
Temp (24h trend)      84 (0)       72 (-2)      84
RH % (24h trend)      61 (-5)      90 (+3)      60
Wind 20ft/early(mph)  E 13 G17     E 14 G17     E 19 G23
Wind 20ft/late(mph)   E 13 G17     E 14 G17     E 19 G23
Mixing Hgt(ft-agl/msl)4590                      4410
Transport Wnd (mph)   E 18                      E 25
Vent Rate (kt-ft)     73440                     97020
Dispersion            5                         5
DSI                   6            6            6
RH Recovery                        Excellent

Remarks...None.

$$


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