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

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894
FNCA52 TJSJ 190717
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
317 AM AST Thu Sep 19 2024

.DISCUSSION...

A patch of moisture embedded in a northeast wind flow will bring
showers across the interior, western Puerto Rico, and U.S. Virgin
Islands this afternoon. Most RH values are expected to in the mid
50s or higher. The winds will continue to weak through the weekend.
As a result, the fire danger risk should remain low for this
period.


PRZ014-200730-
Southeast Coastal Plains-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           10           40
Temp (24h trend)      94 (+5)      75 (-4)      94
RH % (24h trend)      55 (-12)     98 (+9)      55
Wind 20ft/early(mph)  E  8         NE  5        SE  9
Wind 20ft/late(mph)   E  8         NE  5        SE  9
Mixing Hgt(ft-agl/msl)4300                      4010
Transport Wnd (mph)   E  3                      SE  6
Vent Rate (kt-ft)     12900                     20050
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-200730-
Southern Hills-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           50
Temp (24h trend)      90 (+6)      71 (-5)      90
RH % (24h trend)      58 (-16)     100 (+7)     60
Wind 20ft/early(mph)  E  5         Lgt/Var      SE  6
Wind 20ft/late(mph)   E  5         Lgt/Var      SE  6
Mixing Hgt(ft-agl/msl)5040                      4830
Transport Wnd (mph)   E  3                      SE  5
Vent Rate (kt-ft)     15120                     19320
Dispersion            5                         5
DSI                   4            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-200730-
North Coastal Plains-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           40           60
Temp (24h trend)      91 (+3)      75 (-5)      91
RH % (24h trend)      66 (-10)     99 (+9)      65
Wind 20ft/early(mph)  NE  9        E  9         NE 10
Wind 20ft/late(mph)   NE  9        E  9         NE 10
Mixing Hgt(ft-agl/msl)4240                      4610
Transport Wnd (mph)   NE  6                     SE  3
Vent Rate (kt-ft)     21200                     13830
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-200730-
Northern Hills-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           30           70
Temp (24h trend)      90 (+5)      73 (-4)      91
RH % (24h trend)      65 (-13)     100 (+6)     64
Wind 20ft/early(mph)  NE  9        E  8         NE  8
Wind 20ft/late(mph)   NE  9        E  8         NE  8
Mixing Hgt(ft-agl/msl)4910                      5100
Transport Wnd (mph)   E  5                      SE  3
Vent Rate (kt-ft)     19640                     15300
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-200730-
West Coast-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Mclear
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           40
Temp (24h trend)      94 (+5)      73 (-5)      93
RH % (24h trend)      56 (-15)     100 (+9)     60
Wind 20ft/early(mph)  NW  9        E 10         SW  8
Wind 20ft/late(mph)   NW  9        E 10         SW  8
Mixing Hgt(ft-agl/msl)4260                      4380
Transport Wnd (mph)   E  2                      SE  6
Vent Rate (kt-ft)     8520                      21900
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-200730-
Eastern Interior-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           30           50
Temp (24h trend)      89 (+3)      72 (-5)      90
RH % (24h trend)      66 (-9)      100 (+7)     63
Wind 20ft/early(mph)  NE  8        NE  5        E  8
Wind 20ft/late(mph)   NE  8        NE  5        E  8
Mixing Hgt(ft-agl/msl)5320                      5090
Transport Wnd (mph)   NE  3                     SE  5
Vent Rate (kt-ft)     15960                     20360
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-200730-
Luquillo Mountain Range-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           40           50
Temp (24h trend)      85 (+3)      69 (-5)      86
RH % (24h trend)      70 (-8)      100 (+1)     67
Wind 20ft/early(mph)  NE  5        Lgt/Var      E  6
Wind 20ft/late(mph)   NE  5        Lgt/Var      E  6
Mixing Hgt(ft-agl/msl)4500                      4440
Transport Wnd (mph)   NE  3                     SE  5
Vent Rate (kt-ft)     13500                     17760
Dispersion            4                         5
DSI                   5            0            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-200730-
Central Mountain Range-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           70
Temp (24h trend)      89 (+8)      69 (-5)      89
RH % (24h trend)      62 (-17)     100 (+3)     65
Wind 20ft/early(mph)  NE  8        NE  9        E  5
Wind 20ft/late(mph)   NE  8        NE  9        E  5
Mixing Hgt(ft-agl/msl)5560                      5480
Transport Wnd (mph)   E  3                      SE  5
Vent Rate (kt-ft)     16680                     21920
Dispersion            5                         5
DSI                   4            1            4
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-200730-
Cayey Mountain Range-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           20           50
Temp (24h trend)      86 (+4)      70 (-3)      87
RH % (24h trend)      64 (-11)     100 (+1)     62
Wind 20ft/early(mph)  E  5         Lgt/Var      SE  5
Wind 20ft/late(mph)   E  5         Lgt/Var      SE  5
Mixing Hgt(ft-agl/msl)4870                      4690
Transport Wnd (mph)   NE  3                     SE  5
Vent Rate (kt-ft)     14610                     18760
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-200730-
Vieques-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           30           40
Temp (24h trend)      90 (0)       74 (-5)      90
RH % (24h trend)      61 (-3)      99 (+9)      61
Wind 20ft/early(mph)  Lgt/Var      NE  5        SE  5
Wind 20ft/late(mph)   Lgt/Var      NE  5        SE  5
Mixing Hgt(ft-agl/msl)2810                      2750
Transport Wnd (mph)   NE  6                     SE  6
Vent Rate (kt-ft)     14050                     13750
Dispersion            4                         4
DSI                   6            2            6
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-200730-
Culebra-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           30           50
Temp (24h trend)      91 (-1)      76 (-6)      91
RH % (24h trend)      59 (-5)      98 (+11)     59
Wind 20ft/early(mph)  NE  5        NE  5        E  5
Wind 20ft/late(mph)   NE  5        NE  5        E  5
Mixing Hgt(ft-agl/msl)2860                      2780
Transport Wnd (mph)   NE  6                     SE  6
Vent Rate (kt-ft)     14300                     13900
Dispersion            5                         4
DSI                   6            2            6
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-200730-
Southwest Coastal Plains and Mona Island-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Mclear
Precip Type           Tstms        Showers      Showers
Chance Precip (%)     60           10           30
Temp (24h trend)      96 (+6)      75 (-4)      95
RH % (24h trend)      51 (-16)     93 (+6)      56
Wind 20ft/early(mph)  SE  8        NE 11        SE 11
Wind 20ft/late(mph)   SE  8        NE 11        SE 11
Mixing Hgt(ft-agl/msl)4680                      4470
Transport Wnd (mph)   SE  3                     SE  8
Vent Rate (kt-ft)     14040                     31290
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            2            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-200730-
Saint Thomas and Saint John-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           20           40
Temp (24h trend)      90 (+1)      76 (-5)      89
RH % (24h trend)      62 (-3)      97 (+9)      63
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      Lgt/Var
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      Lgt/Var
Mixing Hgt(ft-agl/msl)2710                      2810
Transport Wnd (mph)   NE  5                     S  5
Vent Rate (kt-ft)     10840                     11240
Dispersion            4                         4
DSI                   6            1            6
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-200730-
St Croix-
317 AM AST Thu Sep 19 2024

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           20           40
Temp (24h trend)      89 (0)       75 (-1)      90
RH % (24h trend)      66 (-3)      99 (-1)      64
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      SE  5
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      SE  5
Mixing Hgt(ft-agl/msl)3860                      4550
Transport Wnd (mph)   E  3                      SE  6
Vent Rate (kt-ft)     11580                     22750
Dispersion            4                         5
DSI                   6            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$


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