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

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000
FNCA52 TJSJ 250758
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
358 AM AST Thu Apr 25 2024

.DISCUSSION...

Unstable weather conditions are expected to continue due to the
presence of a surface trough that will continue to maintain RH
values at 50% or greater. Light winds from the east at 5 to 10
mph will prevail through the end of the workweek. Shower activity
and isolated thunderstorms are possible, and some of this
activity reaching the southern and southwestern portions of
Puerto Rico. Taking into account the mentioned factors, the risk
of fire danger will remain low for today.


PRZ014-260800-
Southeast Coastal Plains-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           10           20
Temp (24h trend)      88 (0)       70 (-4)      88
RH % (24h trend)      55 (-5)      97 (+9)      47
Wind 20ft/early(mph)  SE 12 G17    E 10         E 14 G19
Wind 20ft/late(mph)   SE 12 G17    E 10         E 14 G19
Mixing Hgt(ft-agl/msl)4590                      4320
Transport Wnd (mph)   E 13                      E 12
Vent Rate (kt-ft)     50490                     43200
Dispersion            5                         5
DSI                   5            3            5
LAL                   2            1            1
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-260800-
Southern Hills-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           10           40
Temp (24h trend)      85 (+2)      68 (-4)      85
RH % (24h trend)      63 (-9)      99 (+7)      60
Wind 20ft/early(mph)  SE 10        E  9         E 11
Wind 20ft/late(mph)   SE 10        E  9         E 11
Mixing Hgt(ft-agl/msl)5300                      4460
Transport Wnd (mph)   SE 12                     E 10
Vent Rate (kt-ft)     53000                     40140
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-260800-
North Coastal Plains-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           60
Temp (24h trend)      86 (0)       70 (-4)      87
RH % (24h trend)      69 (-5)      100 (+3)     65
Wind 20ft/early(mph)  E 14 G17     E 10         E 12
Wind 20ft/late(mph)   E 14 G17     E 10         E 12
Mixing Hgt(ft-agl/msl)4800                      4120
Transport Wnd (mph)   SE 12                     E 12
Vent Rate (kt-ft)     48000                     41200
Dispersion            5                         5
DSI                   6            4            6
LAL                   3            1            3
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-260800-
Northern Hills-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           70
Temp (24h trend)      85 (+1)      67 (-4)      85
RH % (24h trend)      72 (-5)      100 (+1)     68
Wind 20ft/early(mph)  E 12         E  9         E 11
Wind 20ft/late(mph)   E 12         E  9         E 11
Mixing Hgt(ft-agl/msl)5520                      4340
Transport Wnd (mph)   SE  8                     E  9
Vent Rate (kt-ft)     38640                     34720
Dispersion            5                         5
DSI                   5            2            6
LAL                   3            1            3
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-260800-
West Coast-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           10           50
Temp (24h trend)      86 (-1)      68 (-4)      88
RH % (24h trend)      65 (-6)      100 (+2)     61
Wind 20ft/early(mph)  E 12         E  9         E 11
Wind 20ft/late(mph)   E 12         E  9         E 11
Mixing Hgt(ft-agl/msl)4800                      4370
Transport Wnd (mph)   SE 10                     SE  7
Vent Rate (kt-ft)     43200                     26220
Dispersion            5                         5
DSI                   6            3            5
LAL                   3            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-260800-
Eastern Interior-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           30           50
Temp (24h trend)      86 (+1)      68 (-5)      87
RH % (24h trend)      67 (-3)      100 (+4)     62
Wind 20ft/early(mph)  SE 13        E 11         E 10
Wind 20ft/late(mph)   SE 13        E 11         E 10
Mixing Hgt(ft-agl/msl)5530                      4270
Transport Wnd (mph)   SE 13                     E 13
Vent Rate (kt-ft)     60830                     46970
Dispersion            5                         5
DSI                   5            3            5
LAL                   3            1            3
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-260800-
Luquillo Mountain Range-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           60           60
Temp (24h trend)      82 (+1)      68 (-4)      82
RH % (24h trend)      72 (-3)      98 (+2)      67
Wind 20ft/early(mph)  SE 11        E  9         E 10
Wind 20ft/late(mph)   SE 11        E  9         E 10
Mixing Hgt(ft-agl/msl)3830                      4270
Transport Wnd (mph)   SE 14                     E 14
Vent Rate (kt-ft)     45960                     51240
Dispersion            5                         5
DSI                   6            4            6
LAL                   3            1            2
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-260800-
Central Mountain Range-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           10           70
Temp (24h trend)      83 (+3)      66 (-4)      82
RH % (24h trend)      72 (-6)      100 (+3)     69
Wind 20ft/early(mph)  SE  8        E  5         E  8
Wind 20ft/late(mph)   SE  8        E  5         E  8
Mixing Hgt(ft-agl/msl)6080                      4920
Transport Wnd (mph)   SE  8                     E  7
Vent Rate (kt-ft)     42560                     29520
Dispersion            5                         5
DSI                   5            1            5
LAL                   3            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-260800-
Cayey Mountain Range-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           30           40
Temp (24h trend)      82 (+1)      67 (-4)      82
RH % (24h trend)      70 (-4)      100 (+1)     65
Wind 20ft/early(mph)  SE  9        E  8         E  9
Wind 20ft/late(mph)   SE  9        E  8         E  9
Mixing Hgt(ft-agl/msl)4760                      4360
Transport Wnd (mph)   E 13                      E 14
Vent Rate (kt-ft)     52360                     52320
Dispersion            5                         5
DSI                   6            3            6
LAL                   2            1            1
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-260800-
Vieques-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           30
Temp (24h trend)      87 (-1)      73 (-4)      88
RH % (24h trend)      63 (0)       88 (-1)      57
Wind 20ft/early(mph)  E 13 G17     E 14 G19     E 11
Wind 20ft/late(mph)   E 13 G17     E 14 G19     E 11
Mixing Hgt(ft-agl/msl)2980                      3710
Transport Wnd (mph)   E 14                      E 14
Vent Rate (kt-ft)     35760                     44520
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-260800-
Culebra-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           40           20
Temp (24h trend)      88 (0)       75 (-3)      89
RH % (24h trend)      61 (-4)      87 (-3)      57
Wind 20ft/early(mph)  E 14 G18     E 14 G19     E 11
Wind 20ft/late(mph)   E 14 G18     E 14 G19     E 11
Mixing Hgt(ft-agl/msl)2800                      3580
Transport Wnd (mph)   E 16                      E 15
Vent Rate (kt-ft)     39200                     46540
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-260800-
Southwest Coastal Plains and Mona Island-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           10           30
Temp (24h trend)      90 (+1)      70 (-4)      91
RH % (24h trend)      52 (-4)      99 (+8)      46
Wind 20ft/early(mph)  SE 16 G21    E 13         E 17 G22
Wind 20ft/late(mph)   SE 16 G21    E 13         E 17 G22
Mixing Hgt(ft-agl/msl)5090                      4480
Transport Wnd (mph)   SE 15                     E 12
Vent Rate (kt-ft)     66170                     44800
Dispersion            5                         5
DSI                   6            4            5
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-260800-
Saint Thomas and Saint John-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     60           30           20
Temp (24h trend)      87 (+1)      75 (0)       87
RH % (24h trend)      61 (-6)      87 (-8)      59
Wind 20ft/early(mph)  E 16 G19     E 14 G19     E 12
Wind 20ft/late(mph)   E 16 G19     E 14 G19     E 12
Mixing Hgt(ft-agl/msl)3180                      3560
Transport Wnd (mph)   E 17                      E 16
Vent Rate (kt-ft)     47700                     49840
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            4            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-260800-
St Croix-
358 AM AST Thu Apr 25 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           30           20
Temp (24h trend)      85 (-1)      73 (-1)      85
RH % (24h trend)      66 (-3)      93 (-4)      63
Wind 20ft/early(mph)  E 14 G18     E 14 G18     E 11
Wind 20ft/late(mph)   E 14 G18     E 14 G18     E 11
Mixing Hgt(ft-agl/msl)3800                      4240
Transport Wnd (mph)   E 18                      E 15
Vent Rate (kt-ft)     60800                     55120
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            4            4
RH Recovery                        Excellent

Remarks...None.

$$


$$


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