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

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FNCA52 TJSJ 100900
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
500 AM AST Fri Jan 10 2025

.DISCUSSION...

Humidity values may drop into fire danger thresholds and surface
winds may exceed 15 mph. However, soil and fuel moisture levels
are sufficient to prevent wildfire spread, as indicated by the
latest fire danger indices. That said, no significant threat of
wildfires is expected today, and the fire danger risk remains low.


PRZ014-111000-
Southeast Coastal Plains-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     10           10           30
Temp (24h trend)      89 (+1)      72 (-1)      88
RH % (24h trend)      47 (-5)      82 (+3)      48
Wind 20ft/early(mph)  NE 20 G27    N 13 G17     N 13 G18
Wind 20ft/late(mph)   NE 20 G27    N 13 G17     N 13 G18
Mixing Hgt(ft-agl/msl)5260                      5460
Transport Wnd (mph)   NE 18                     N 16
Vent Rate (kt-ft)     84160                     76440
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          4            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-111000-
Southern Hills-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           20           30
Temp (24h trend)      85 (+2)      68 (-1)      84
RH % (24h trend)      52 (-10)     87 (+2)      59
Wind 20ft/early(mph)  NE 16        N 12         N 13
Wind 20ft/late(mph)   NE 16        N 12         N 13
Mixing Hgt(ft-agl/msl)5400                      5400
Transport Wnd (mph)   NE 18                     N 17
Vent Rate (kt-ft)     86400                     81000
Dispersion            5                         5
DSI                   6            5            6
LAL                   1            1            1
Haines Index          3            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-111000-
North Coastal Plains-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           70           60
Temp (24h trend)      85 (-1)      73 (0)       84
RH % (24h trend)      62 (-4)      86 (+1)      68
Wind 20ft/early(mph)  NE 17 G19    N 17         N 18
Wind 20ft/late(mph)   NE 17 G19    N 17         N 18
Mixing Hgt(ft-agl/msl)4880                      4670
Transport Wnd (mph)   NE 18                     N 16
Vent Rate (kt-ft)     78080                     65380
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-111000-
Northern Hills-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           60           60
Temp (24h trend)      83 (-2)      71 (0)       82
RH % (24h trend)      64 (-1)      88 (-1)      73
Wind 20ft/early(mph)  NE 16        NE 16        N 17
Wind 20ft/late(mph)   NE 16        NE 16        N 17
Mixing Hgt(ft-agl/msl)4840                      4570
Transport Wnd (mph)   NE 20                     N 18
Vent Rate (kt-ft)     82280                     73120
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-111000-
West Coast-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           10           40
Temp (24h trend)      88 (-1)      70 (0)       86
RH % (24h trend)      53 (-5)      88 (+1)      63
Wind 20ft/early(mph)  NE 19        NE 19        N 18
Wind 20ft/late(mph)   NE 19        NE 19        N 18
Mixing Hgt(ft-agl/msl)5400                      5250
Transport Wnd (mph)   NE 17                     N 21
Vent Rate (kt-ft)     81000                     94500
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          4            4            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-111000-
Eastern Interior-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           60           50
Temp (24h trend)      84 (+1)      70 (-1)      84
RH % (24h trend)      61 (-6)      89 (+1)      65
Wind 20ft/early(mph)  NE 16        N 14         N 11
Wind 20ft/late(mph)   NE 16        N 14         N 11
Mixing Hgt(ft-agl/msl)5050                      4960
Transport Wnd (mph)   NE 17                     N 15
Vent Rate (kt-ft)     75750                     64480
Dispersion            5                         5
DSI                   6            5            6
LAL                   1            1            1
Haines Index          2            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-111000-
Luquillo Mountain Range-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           70           60
Temp (24h trend)      80 (+2)      69 (-1)      80
RH % (24h trend)      65 (-6)      90 (+1)      69
Wind 20ft/early(mph)  NE 13        N 10         N 10
Wind 20ft/late(mph)   NE 13        N 10         N 10
Mixing Hgt(ft-agl/msl)4910                      4810
Transport Wnd (mph)   NE 17                     N 14
Vent Rate (kt-ft)     73650                     57720
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-111000-
Central Mountain Range-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           30           50
Temp (24h trend)      82 (0)       66 (-1)      79
RH % (24h trend)      60 (-3)      90 (0)       70
Wind 20ft/early(mph)  NE 16        NE 16        N 17
Wind 20ft/late(mph)   NE 16        NE 16        N 17
Mixing Hgt(ft-agl/msl)4990                      4790
Transport Wnd (mph)   NE 20                     N 20
Vent Rate (kt-ft)     84830                     81430
Dispersion            5                         5
DSI                   6            5            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-111000-
Cayey Mountain Range-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           40           40
Temp (24h trend)      80 (0)       67 (-1)      80
RH % (24h trend)      61 (-8)      89 (-1)      67
Wind 20ft/early(mph)  NE 13        N 10         N 10
Wind 20ft/late(mph)   NE 13        N 10         N 10
Mixing Hgt(ft-agl/msl)5150                      5220
Transport Wnd (mph)   NE 18                     N 16
Vent Rate (kt-ft)     82400                     73080
Dispersion            5                         5
DSI                   6            5            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-111000-
Vieques-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           70           60
Temp (24h trend)      87 (0)       76 (+1)      87
RH % (24h trend)      55 (-5)      82 (-2)      58
Wind 20ft/early(mph)  NE 18 G23    N 18 G22     N 13 G17
Wind 20ft/late(mph)   NE 18 G23    N 18 G22     N 13 G17
Mixing Hgt(ft-agl/msl)4490                      4000
Transport Wnd (mph)   N 20                      N 18
Vent Rate (kt-ft)     76330                     64000
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-111000-
Culebra-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           70           50
Temp (24h trend)      89 (+1)      76 (0)       88
RH % (24h trend)      52 (-9)      84 (+1)      58
Wind 20ft/early(mph)  NE 18 G23    N 18 G22     N 13 G17
Wind 20ft/late(mph)   NE 18 G23    N 18 G22     N 13 G17
Mixing Hgt(ft-agl/msl)4430                      3990
Transport Wnd (mph)   N 18                      N 18
Vent Rate (kt-ft)     70880                     63840
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-111000-
Southwest Coastal Plains and Mona Island-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      None         Showers
Chance Precip (%)     30           0            20
Temp (24h trend)      90 (0)       71 (0)       88
RH % (24h trend)      42 (-7)      86 (+1)      48
Wind 20ft/early(mph)  NE 18 G23    N 20 G23     N 19 G24
Wind 20ft/late(mph)   NE 18 G23    N 20 G23     N 19 G24
Mixing Hgt(ft-agl/msl)6170                      6110
Transport Wnd (mph)   NE 14                     N 17
Vent Rate (kt-ft)     74040                     91650
Dispersion            5                         5
DSI                   6            5            6
LAL                   1            1            1
Haines Index          4            4            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-111000-
Saint Thomas and Saint John-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     40           70           50
Temp (24h trend)      88 (+1)      74 (-1)      85
RH % (24h trend)      52 (-6)      88 (+3)      60
Wind 20ft/early(mph)  N 18 G22     N 16 G18     N 12
Wind 20ft/late(mph)   N 18 G22     N 16 G18     N 12
Mixing Hgt(ft-agl/msl)4620                      4060
Transport Wnd (mph)   N 18                      N 18
Vent Rate (kt-ft)     73920                     64960
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-111000-
St Croix-
500 AM AST Fri Jan 10 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           60           50
Temp (24h trend)      86 (+1)      74 (-1)      84
RH % (24h trend)      58 (-6)      90 (+5)      65
Wind 20ft/early(mph)  NE 17 G21    N 14 G17     N  9
Wind 20ft/late(mph)   NE 17 G21    N 14 G17     N  9
Mixing Hgt(ft-agl/msl)4650                      4430
Transport Wnd (mph)   NE 22                     NE 10
Vent Rate (kt-ft)     88350                     39870
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            4            3
RH Recovery                        Excellent

Remarks...None.

$$


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