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

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584
FNCA52 TJSJ 040825
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
425 AM AST Fri Oct 4 2024

.DISCUSSION...

Yesterday`s shower activity across the southern coastal plains
resulted in KDBIs below threshold values today. Steering winds
from the northeast will remain light, and shower activity is yet
again expected. Therefore, a low fire danger continues across the
area.

PRZ014-050830-
Southeast Coastal Plains-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     80           30           70
Temp (24h trend)      92 (+1)      75 (-3)      91
RH % (24h trend)      52 (-4)      88 (+3)      52
Wind 20ft/early(mph)  E  9         N  5         SE  5
Wind 20ft/late(mph)   E  9         N  5         SE  5
Mixing Hgt(ft-agl/msl)4980                      4070
Transport Wnd (mph)   NE  7                     E  2
Vent Rate (kt-ft)     29880                     8140
Dispersion            5                         4
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-050830-
Southern Hills-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           20           80
Temp (24h trend)      88 (+1)      72 (-3)      87
RH % (24h trend)      61 (-5)      97 (+6)      62
Wind 20ft/early(mph)  E  8         NE  6        SE  5
Wind 20ft/late(mph)   E  8         NE  6        SE  5
Mixing Hgt(ft-agl/msl)5140                      4770
Transport Wnd (mph)   NE  7                     E  3
Vent Rate (kt-ft)     30840                     14310
Dispersion            5                         4
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-050830-
North Coastal Plains-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           60           60
Temp (24h trend)      89 (0)       76 (-2)      89
RH % (24h trend)      69 (-2)      98 (+4)      68
Wind 20ft/early(mph)  NE 11        E 10         NE  8
Wind 20ft/late(mph)   NE 11        E 10         NE  8
Mixing Hgt(ft-agl/msl)4380                      4490
Transport Wnd (mph)   NE  9                     E  6
Vent Rate (kt-ft)     35040                     22450
Dispersion            5                         5
DSI                   6            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-050830-
Northern Hills-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           40           40
Temp (24h trend)      88 (+1)      73 (-2)      88
RH % (24h trend)      70 (0)       98 (+1)      68
Wind 20ft/early(mph)  NE 10        E  9         NE  8
Wind 20ft/late(mph)   NE 10        E  9         NE  8
Mixing Hgt(ft-agl/msl)4770                      5140
Transport Wnd (mph)   NE  9                     E  5
Vent Rate (kt-ft)     38160                     20560
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-050830-
West Coast-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           20           50
Temp (24h trend)      91 (+1)      73 (-2)      90
RH % (24h trend)      64 (-3)      98 (+3)      63
Wind 20ft/early(mph)  E 11         NE 11        NW  6
Wind 20ft/late(mph)   E 11         NE 11        NW  6
Mixing Hgt(ft-agl/msl)4540                      4570
Transport Wnd (mph)   NE  7                     E  5
Vent Rate (kt-ft)     27240                     18280
Dispersion            5                         5
DSI                   5            3            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-050830-
Eastern Interior-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Mcldy        Pcldy        Mcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           60           80
Temp (24h trend)      88 (+1)      73 (-3)      87
RH % (24h trend)      67 (-2)      98 (+3)      68
Wind 20ft/early(mph)  NE  8        NE  6        NE  5
Wind 20ft/late(mph)   NE  8        NE  6        NE  5
Mixing Hgt(ft-agl/msl)4970                      4860
Transport Wnd (mph)   NE  8                     NE  3
Vent Rate (kt-ft)     34790                     14580
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-050830-
Luquillo Mountain Range-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Mcldy        Mcldy        Mcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           60           70
Temp (24h trend)      84 (0)       71 (-3)      84
RH % (24h trend)      70 (-1)      99 (+3)      71
Wind 20ft/early(mph)  NE  5        Lgt/Var      Lgt/Var
Wind 20ft/late(mph)   NE  5        Lgt/Var      Lgt/Var
Mixing Hgt(ft-agl/msl)4380                      4520
Transport Wnd (mph)   NE  6                     E  2
Vent Rate (kt-ft)     21900                     9040
Dispersion            5                         4
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-050830-
Central Mountain Range-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           80
Temp (24h trend)      86 (+1)      69 (-3)      86
RH % (24h trend)      69 (-1)      100 (+3)     67
Wind 20ft/early(mph)  NE 10        NE  9        NE  5
Wind 20ft/late(mph)   NE 10        NE  9        NE  5
Mixing Hgt(ft-agl/msl)5170                      5480
Transport Wnd (mph)   NE  8                     E  3
Vent Rate (kt-ft)     36190                     16440
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-050830-
Cayey Mountain Range-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Mcldy        Pcldy        Mcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           50           80
Temp (24h trend)      85 (0)       71 (-2)      84
RH % (24h trend)      67 (-1)      99 (+2)      68
Wind 20ft/early(mph)  NE  6        N  5         Lgt/Var
Wind 20ft/late(mph)   NE  6        N  5         Lgt/Var
Mixing Hgt(ft-agl/msl)4660                      4630
Transport Wnd (mph)   NE  8                     NE  3
Vent Rate (kt-ft)     32620                     13890
Dispersion            5                         4
DSI                   5            2            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-050830-
Vieques-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Mcldy        Mcldy        Mcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           60           60
Temp (24h trend)      89 (0)       77 (-2)      87
RH % (24h trend)      64 (-2)      91 (+1)      66
Wind 20ft/early(mph)  NE  6        NE  6        Lgt/Var
Wind 20ft/late(mph)   NE  6        NE  6        Lgt/Var
Mixing Hgt(ft-agl/msl)2900                      2870
Transport Wnd (mph)   NE  8                     N  8
Vent Rate (kt-ft)     20300                     20090
Dispersion            5                         5
DSI                   6            5            6
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-050830-
Culebra-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mcldy        Mcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           60           60
Temp (24h trend)      91 (+2)      79 (-2)      89
RH % (24h trend)      60 (-7)      88 (+1)      64
Wind 20ft/early(mph)  NE  5        NE  6        Lgt/Var
Wind 20ft/late(mph)   NE  5        NE  6        Lgt/Var
Mixing Hgt(ft-agl/msl)2980                      2800
Transport Wnd (mph)   NE  7                     NE  7
Vent Rate (kt-ft)     17880                     16800
Dispersion            5                         5
DSI                   6            5            6
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-050830-
Southwest Coastal Plains and Mona Island-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Mclear       Mclear
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     80           30           30
Temp (24h trend)      93 (+2)      75 (-2)      92
RH % (24h trend)      50 (-5)      88 (+2)      50
Wind 20ft/early(mph)  S  9         NE 12        SW  8
Wind 20ft/late(mph)   S  9         NE 12        SW  8
Mixing Hgt(ft-agl/msl)4670                      4460
Transport Wnd (mph)   E  3                      SE  5
Vent Rate (kt-ft)     14010                     17840
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-050830-
Saint Thomas and Saint John-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           50           60
Temp (24h trend)      88 (0)       78 (-1)      87
RH % (24h trend)      65 (-2)      91 (0)       68
Wind 20ft/early(mph)  NE  5        NE  5        Lgt/Var
Wind 20ft/late(mph)   NE  5        NE  5        Lgt/Var
Mixing Hgt(ft-agl/msl)3080                      2960
Transport Wnd (mph)   NE 10                     NE  7
Vent Rate (kt-ft)     27720                     17760
Dispersion            5                         5
DSI                   6            5            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-050830-
St Croix-
425 AM AST Fri Oct 4 2024

                      Today        Tonight      Sat

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     30           20           60
Temp (24h trend)      89 (+1)      78 (-2)      87
RH % (24h trend)      63 (-4)      88 (+4)      68
Wind 20ft/early(mph)  NE  6        NE  6        Lgt/Var
Wind 20ft/late(mph)   NE  6        NE  6        Lgt/Var
Mixing Hgt(ft-agl/msl)4330                      4050
Transport Wnd (mph)   NE  7                     E  3
Vent Rate (kt-ft)     25980                     12150
Dispersion            5                         4
DSI                   6            3            5
LAL                   1            1            2
Haines Index          4            3            3
RH Recovery                        Excellent

Remarks...None.

$$


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