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

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FNCA52 TJSJ 270807
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
407 AM AST Wed Mar 27 2024

.DISCUSSION...

Dry and stable weather conditions are expected to prevail today.
Relative humidities are expected to lower to around 50%. However,
the current KBDI and fuel moisture does not support elevated fire
weather conditions. In addition, rain was observed yesterday in
the south due to remaining moisture of a cold front that passed
in the previous days. Therefore, the risk for fire danger will be
low for today.


PRZ014-280815-
Southeast Coastal Plains-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Clear        Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     20           0            10
Temp (24h trend)      86 (0)       71 (0)       86
RH % (24h trend)      47 (-10)     72 (-6)      42
Wind 20ft/early(mph)  SW  9        N  8         SW 10
Wind 20ft/late(mph)   SW  9        N  8         SW 10
Mixing Hgt(ft-agl/msl)5810                      4690
Transport Wnd (mph)   N  2                      W  6
Vent Rate (kt-ft)     11620                     23450
Dispersion            5                         5
DSI                   6            2            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-280815-
Southern Hills-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Clear        Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     20           0            10
Temp (24h trend)      84 (+3)      66 (-3)      83
RH % (24h trend)      54 (-15)     82 (0)       47
Wind 20ft/early(mph)  N 12         N 11         W 11
Wind 20ft/late(mph)   N 12         N 11         W 11
Mixing Hgt(ft-agl/msl)6010                      5160
Transport Wnd (mph)   NW  3                     W  8
Vent Rate (kt-ft)     18030                     36120
Dispersion            5                         5
DSI                   5            2            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-280815-
North Coastal Plains-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     0            20           10
Temp (24h trend)      84 (+1)      70 (-1)      84
RH % (24h trend)      60 (-13)     78 (-9)      53
Wind 20ft/early(mph)  N 12         N 11         NW 12
Wind 20ft/late(mph)   N 12         N 11         NW 12
Mixing Hgt(ft-agl/msl)4650                      4620
Transport Wnd (mph)   N  7                      NW  9
Vent Rate (kt-ft)     27900                     36960
Dispersion            5                         5
DSI                   6            3            5
LAL                   1            1            1
Haines Index          2            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-280815-
Northern Hills-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Clear        Mclear       Mclear
Precip Type           None         Showers      Showers
Chance Precip (%)     0            20           10
Temp (24h trend)      82 (0)       68 (-2)      82
RH % (24h trend)      65 (-10)     81 (-6)      55
Wind 20ft/early(mph)  N 12         N 11         NW 12
Wind 20ft/late(mph)   N 12         N 11         NW 12
Mixing Hgt(ft-agl/msl)4930                      4950
Transport Wnd (mph)   N  6                      NW  9
Vent Rate (kt-ft)     24650                     39600
Dispersion            5                         5
DSI                   6            2            5
LAL                   1            1            1
Haines Index          2            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-280815-
West Coast-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      None         None
Chance Precip (%)     20           0            0
Temp (24h trend)      84 (0)       71 (+2)      84
RH % (24h trend)      56 (-11)     74 (-12)     50
Wind 20ft/early(mph)  N 16         N 16         NW 12
Wind 20ft/late(mph)   N 16         N 16         NW 12
Mixing Hgt(ft-agl/msl)5660                      4700
Transport Wnd (mph)   N  9                      NW  7
Vent Rate (kt-ft)     45280                     28200
Dispersion            5                         5
DSI                   6            5            6
LAL                   1            1            1
Haines Index          2            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-280815-
Eastern Interior-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           20           20
Temp (24h trend)      84 (+1)      68 (-1)      84
RH % (24h trend)      60 (-9)      82 (-5)      49
Wind 20ft/early(mph)  N 10         N 10         NW 10
Wind 20ft/late(mph)   N 10         N 10         NW 10
Mixing Hgt(ft-agl/msl)4820                      5630
Transport Wnd (mph)   N  7                      W  8
Vent Rate (kt-ft)     28920                     39410
Dispersion            5                         5
DSI                   5            3            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-280815-
Luquillo Mountain Range-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           20           20
Temp (24h trend)      80 (+1)      64 (-3)      81
RH % (24h trend)      63 (-10)     86 (-4)      52
Wind 20ft/early(mph)  N  9         N  8         NW  5
Wind 20ft/late(mph)   N  9         N  8         NW  5
Mixing Hgt(ft-agl/msl)4060                      5150
Transport Wnd (mph)   N  8                      W  7
Vent Rate (kt-ft)     28420                     30900
Dispersion            5                         5
DSI                   5            3            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-280815-
Central Mountain Range-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     20           0            10
Temp (24h trend)      80 (+1)      64 (-4)      81
RH % (24h trend)      60 (-14)     87 (+2)      53
Wind 20ft/early(mph)  N 13         N 12         NW 11
Wind 20ft/late(mph)   N 13         N 12         NW 11
Mixing Hgt(ft-agl/msl)5600                      5730
Transport Wnd (mph)   N  5                      NW  9
Vent Rate (kt-ft)     22400                     45840
Dispersion            5                         5
DSI                   5            2            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-280815-
Cayey Mountain Range-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Clear        Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     20           0            20
Temp (24h trend)      81 (+1)      66 (-1)      80
RH % (24h trend)      62 (-10)     84 (-5)      51
Wind 20ft/early(mph)  N  6         N  8         W  8
Wind 20ft/late(mph)   N  6         N  8         W  8
Mixing Hgt(ft-agl/msl)5870                      5340
Transport Wnd (mph)   NW  6                     W  8
Vent Rate (kt-ft)     29350                     37380
Dispersion            5                         5
DSI                   6            2            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-280815-
Vieques-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Clear        Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     20           0            20
Temp (24h trend)      86 (0)       70 (0)       87
RH % (24h trend)      55 (-8)      82 (-9)      45
Wind 20ft/early(mph)  N 12         N 13 G17     W  8
Wind 20ft/late(mph)   N 12         N 13 G17     W  8
Mixing Hgt(ft-agl/msl)3630                      4060
Transport Wnd (mph)   N 14                      N 13
Vent Rate (kt-ft)     43560                     44660
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-280815-
Culebra-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           20           10
Temp (24h trend)      85 (-1)      70 (-2)      87
RH % (24h trend)      58 (-7)      86 (-4)      46
Wind 20ft/early(mph)  N 12         N 12         NW 10
Wind 20ft/late(mph)   N 12         N 12         NW 10
Mixing Hgt(ft-agl/msl)3680                      4170
Transport Wnd (mph)   N 14                      NW 13
Vent Rate (kt-ft)     44160                     45870
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-280815-
Southwest Coastal Plains and Mona Island-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Clear        Mclear
Precip Type           Showers      None         None
Chance Precip (%)     20           0            0
Temp (24h trend)      86 (0)       71 (0)       88
RH % (24h trend)      44 (-11)     71 (-8)      40
Wind 20ft/early(mph)  NW 19 G23    N 19 G23     W 14 G20
Wind 20ft/late(mph)   NW 19 G23    N 19 G23     W 14 G20
Mixing Hgt(ft-agl/msl)6180                      4900
Transport Wnd (mph)   NW  5                     W  8
Vent Rate (kt-ft)     24720                     34300
Dispersion            5                         5
DSI                   5            4            5
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-280815-
Saint Thomas and Saint John-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Clear        Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     20           0            10
Temp (24h trend)      84 (-1)      72 (-3)      85
RH % (24h trend)      57 (-6)      78 (-3)      47
Wind 20ft/early(mph)  N 11         N 12         NW 11
Wind 20ft/late(mph)   N 11         N 12         NW 11
Mixing Hgt(ft-agl/msl)3600                      4360
Transport Wnd (mph)   N 14                      W 13
Vent Rate (kt-ft)     43200                     47960
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            4            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-280815-
St Croix-
407 AM AST Wed Mar 27 2024

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           10           10
Temp (24h trend)      85 (0)       69 (-2)      86
RH % (24h trend)      58 (-9)      87 (-4)      48
Wind 20ft/early(mph)  N 11         N 11         NW 10
Wind 20ft/late(mph)   N 11         N 11         NW 10
Mixing Hgt(ft-agl/msl)5160                      4890
Transport Wnd (mph)   N 10                      W  9
Vent Rate (kt-ft)     46440                     39120
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            2            3
RH Recovery                        Excellent

Remarks...None.

$$


$$


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