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

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563
FNCA52 TJSJ 300839
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
439 AM AST Mon Sep 30 2024

.DISCUSSION...

The RH values across the southern and southwestern sections of
Puerto Rico will continue to be above threshold criteria (50s).
Also, the winds will be well below 15 mph (very weak winds). As a
result, the fire danger risk should remain low throughout at least
until next week.


PRZ014-010845-
Southeast Coastal Plains-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           10           70
Temp (24h trend)      92 (+1)      76 (-2)      93
RH % (24h trend)      52 (-11)     86 (+1)      49
Wind 20ft/early(mph)  SE 11        NE  9        SE 11
Wind 20ft/late(mph)   SE 11        NE  9        SE 11
Mixing Hgt(ft-agl/msl)4550                      4620
Transport Wnd (mph)   E  9                      E  3
Vent Rate (kt-ft)     36400                     13860
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-010845-
Southern Hills-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           30           70
Temp (24h trend)      88 (0)       72 (-3)      89
RH % (24h trend)      62 (-2)      96 (+6)      60
Wind 20ft/early(mph)  E  9         NE  5        E 10
Wind 20ft/late(mph)   E  9         NE  5        E 10
Mixing Hgt(ft-agl/msl)5100                      5180
Transport Wnd (mph)   E  8                      E  5
Vent Rate (kt-ft)     35700                     20720
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            2            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-010845-
North Coastal Plains-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           40           40
Temp (24h trend)      90 (0)       76 (-1)      90
RH % (24h trend)      69 (0)       97 (+4)      68
Wind 20ft/early(mph)  E 11         E  9         NE 11
Wind 20ft/late(mph)   E 11         E  9         NE 11
Mixing Hgt(ft-agl/msl)4750                      4390
Transport Wnd (mph)   E 10                      E  7
Vent Rate (kt-ft)     42750                     26340
Dispersion            5                         5
DSI                   5            3            5
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-010845-
Northern Hills-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Mclear
Precip Type           Tstms        Showers      Showers
Chance Precip (%)     60           30           40
Temp (24h trend)      88 (-1)      73 (-2)      89
RH % (24h trend)      69 (+1)      97 (+2)      68
Wind 20ft/early(mph)  NE  9        E  6         NE 10
Wind 20ft/late(mph)   NE  9        E  6         NE 10
Mixing Hgt(ft-agl/msl)5320                      4960
Transport Wnd (mph)   E  9                      E  6
Vent Rate (kt-ft)     42560                     24800
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-010845-
West Coast-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           50           70
Temp (24h trend)      90 (-1)      73 (-2)      91
RH % (24h trend)      64 (-3)      96 (+3)      62
Wind 20ft/early(mph)  E  8         E  8         N 11
Wind 20ft/late(mph)   E  8         E  8         N 11
Mixing Hgt(ft-agl/msl)4540                      4170
Transport Wnd (mph)   SE  6                     E  2
Vent Rate (kt-ft)     22700                     8340
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            2            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-010845-
Eastern Interior-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           50
Temp (24h trend)      88 (-1)      73 (-3)      89
RH % (24h trend)      67 (+2)      96 (+3)      66
Wind 20ft/early(mph)  E  9         E  6         NE 10
Wind 20ft/late(mph)   E  9         E  6         NE 10
Mixing Hgt(ft-agl/msl)5230                      5460
Transport Wnd (mph)   E  9                      NE  6
Vent Rate (kt-ft)     41840                     27300
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-010845-
Luquillo Mountain Range-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           50           60
Temp (24h trend)      85 (-1)      72 (-3)      85
RH % (24h trend)      69 (+4)      98 (+5)      70
Wind 20ft/early(mph)  E  8         NE  5        NE  8
Wind 20ft/late(mph)   E  8         NE  5        NE  8
Mixing Hgt(ft-agl/msl)4540                      4890
Transport Wnd (mph)   E  9                      NE  6
Vent Rate (kt-ft)     36320                     24450
Dispersion            5                         5
DSI                   5            2            5
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-010845-
Central Mountain Range-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           50           70
Temp (24h trend)      86 (0)       69 (-3)      87
RH % (24h trend)      68 (+1)      98 (+3)      65
Wind 20ft/early(mph)  E  5         Lgt/Var      NE 10
Wind 20ft/late(mph)   E  5         Lgt/Var      NE 10
Mixing Hgt(ft-agl/msl)5770                      5840
Transport Wnd (mph)   E  7                      NE  3
Vent Rate (kt-ft)     34620                     17520
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            2            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-010845-
Cayey Mountain Range-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Tstms
Chance Precip (%)     40           40           60
Temp (24h trend)      85 (-2)      71 (-2)      85
RH % (24h trend)      68 (+6)      99 (+2)      67
Wind 20ft/early(mph)  E  8         NE  5        E  8
Wind 20ft/late(mph)   E  8         NE  5        E  8
Mixing Hgt(ft-agl/msl)4940                      5130
Transport Wnd (mph)   E  9                      NE  6
Vent Rate (kt-ft)     39520                     25650
Dispersion            5                         5
DSI                   5            1            5
LAL                   1            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-010845-
Vieques-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           60
Temp (24h trend)      89 (0)       78 (-2)      90
RH % (24h trend)      64 (0)       88 (+2)      63
Wind 20ft/early(mph)  E  9         E  9         NE 11
Wind 20ft/late(mph)   E  9         E  9         NE 11
Mixing Hgt(ft-agl/msl)3390                      3320
Transport Wnd (mph)   E  9                      NE  9
Vent Rate (kt-ft)     27120                     26560
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-010845-
Culebra-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           40           60
Temp (24h trend)      91 (+1)      80 (-2)      91
RH % (24h trend)      61 (-4)      87 (+3)      62
Wind 20ft/early(mph)  E 10         E  9         NE 10
Wind 20ft/late(mph)   E 10         E  9         NE 10
Mixing Hgt(ft-agl/msl)3480                      3280
Transport Wnd (mph)   E 13                      E  8
Vent Rate (kt-ft)     38280                     22960
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-010845-
Southwest Coastal Plains and Mona Island-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           30           80
Temp (24h trend)      93 (+2)      76 (-1)      94
RH % (24h trend)      50 (-13)     87 (+3)      47
Wind 20ft/early(mph)  E 11         NE  8        SE 10
Wind 20ft/late(mph)   E 11         NE  8        SE 10
Mixing Hgt(ft-agl/msl)4860                      4730
Transport Wnd (mph)   SE  8                     SE  3
Vent Rate (kt-ft)     34020                     14190
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-010845-
Saint Thomas and Saint John-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           40           60
Temp (24h trend)      88 (+1)      79 (-2)      88
RH % (24h trend)      64 (-3)      91 (+4)      64
Wind 20ft/early(mph)  E 10         NE  9        NE 10
Wind 20ft/late(mph)   E 10         NE  9        NE 10
Mixing Hgt(ft-agl/msl)3580                      3290
Transport Wnd (mph)   E 14                      NE 10
Vent Rate (kt-ft)     42960                     29610
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-010845-
St Croix-
439 AM AST Mon Sep 30 2024

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           30           50
Temp (24h trend)      88 (-1)      79 (-1)      89
RH % (24h trend)      68 (+3)      89 (+1)      66
Wind 20ft/early(mph)  E 10         E  6         NE  8
Wind 20ft/late(mph)   E 10         E  6         NE  8
Mixing Hgt(ft-agl/msl)4230                      4120
Transport Wnd (mph)   E 12                      NE  8
Vent Rate (kt-ft)     42300                     28840
Dispersion            5                         5
DSI                   6            4            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$


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