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

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783
FNCA52 TJSJ 080919
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
519 AM AST Wed Jan 8 2025

.DISCUSSION...
An increase in moisture from the Caribbean accompanied by light
winds will lead to frequent passing showers during the morning and
additional showers development during the afternoon hours over
interior and northwestern Puerto Rico. KBDI remain below thresholds
across the southern coastal plains. Given the expected conditions,
fire danger threat will remain low today.

PRZ014-090930-
Southeast Coastal Plains-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           40           40
Temp (24h trend)      88 (+2)      70 (-3)      87
RH % (24h trend)      54 (-4)      89 (+3)      49
Wind 20ft/early(mph)  SE 12 G17    NE 11        S  8
Wind 20ft/late(mph)   SE 12 G17    NE 11        S  8
Mixing Hgt(ft-agl/msl)3410                      3480
Transport Wnd (mph)   E  7                      E  5
Vent Rate (kt-ft)     20460                     13920
Dispersion            5                         5
DSI                   5            3            5
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-090930-
Southern Hills-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           30           50
Temp (24h trend)      83 (+3)      66 (-4)      83
RH % (24h trend)      68 (-1)      98 (+5)      64
Wind 20ft/early(mph)  SE  9        E  9         S  5
Wind 20ft/late(mph)   SE  9        E  9         S  5
Mixing Hgt(ft-agl/msl)4030                      3720
Transport Wnd (mph)   E  6                      E  2
Vent Rate (kt-ft)     20150                     7440
Dispersion            5                         5
DSI                   5            2            4
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-090930-
North Coastal Plains-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           10           30
Temp (24h trend)      84 (0)       71 (-2)      84
RH % (24h trend)      72 (+1)      97 (+1)      68
Wind 20ft/early(mph)  E 11         E 11         N  6
Wind 20ft/late(mph)   E 11         E 11         N  6
Mixing Hgt(ft-agl/msl)3440                      3370
Transport Wnd (mph)   E  9                      NE  3
Vent Rate (kt-ft)     27520                     10110
Dispersion            5                         4
DSI                   5            4            5
LAL                   1            1            1
Haines Index          2            3            2
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-090930-
Northern Hills-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     60           30           40
Temp (24h trend)      81 (+1)      69 (-2)      81
RH % (24h trend)      78 (+5)      98 (+1)      74
Wind 20ft/early(mph)  NE  9        E  9         N  5
Wind 20ft/late(mph)   NE  9        E  9         N  5
Mixing Hgt(ft-agl/msl)4230                      3470
Transport Wnd (mph)   E  5                      NW  1
Vent Rate (kt-ft)     16920                     3470
Dispersion            5                         4
DSI                   5            3            5
LAL                   1            1            1
Haines Index          3            3            2
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-090930-
West Coast-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           50           50
Temp (24h trend)      85 (-1)      68 (-2)      86
RH % (24h trend)      68 (+3)      100 (+4)     64
Wind 20ft/early(mph)  SE 10        E 12         W  6
Wind 20ft/late(mph)   SE 10        E 12         W  6
Mixing Hgt(ft-agl/msl)3180                      3270
Transport Wnd (mph)   SE  2                     SW  2
Vent Rate (kt-ft)     6360                      6540
Dispersion            4                         4
DSI                   5            2            4
LAL                   1            1            1
Haines Index          3            3            2
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-090930-
Eastern Interior-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     60           20           60
Temp (24h trend)      83 (+2)      67 (-4)      82
RH % (24h trend)      71 (-1)      99 (+1)      66
Wind 20ft/early(mph)  E 10         E  9         E  5
Wind 20ft/late(mph)   E 10         E  9         E  5
Mixing Hgt(ft-agl/msl)3670                      4300
Transport Wnd (mph)   E  8                      E  3
Vent Rate (kt-ft)     25690                     12900
Dispersion            5                         4
DSI                   5            2            4
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-090930-
Luquillo Mountain Range-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           20           40
Temp (24h trend)      79 (+2)      65 (-5)      79
RH % (24h trend)      74 (-2)      99 (+1)      71
Wind 20ft/early(mph)  E  9         E  6         Lgt/Var
Wind 20ft/late(mph)   E  9         E  6         Lgt/Var
Mixing Hgt(ft-agl/msl)3420                      4100
Transport Wnd (mph)   E 10                      E  2
Vent Rate (kt-ft)     30780                     8200
Dispersion            5                         4
DSI                   5            2            4
LAL                   1            1            1
Haines Index          2            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-090930-
Central Mountain Range-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     60           40           60
Temp (24h trend)      79 (+1)      64 (-4)      79
RH % (24h trend)      75 (+5)      99 (+3)      71
Wind 20ft/early(mph)  E  6         E  9         Lgt/Var
Wind 20ft/late(mph)   E  6         E  9         Lgt/Var
Mixing Hgt(ft-agl/msl)5130                      3860
Transport Wnd (mph)   SE  2                     W  2
Vent Rate (kt-ft)     10260                     7720
Dispersion            4                         4
DSI                   4            1            3
LAL                   1            1            1
Haines Index          3            3            2
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-090930-
Cayey Mountain Range-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     50           20           60
Temp (24h trend)      79 (+1)      65 (-3)      78
RH % (24h trend)      76 (+2)      100 (0)      71
Wind 20ft/early(mph)  E  9         E  8         SE  5
Wind 20ft/late(mph)   E  9         E  8         SE  5
Mixing Hgt(ft-agl/msl)3500                      4160
Transport Wnd (mph)   E  9                      E  3
Vent Rate (kt-ft)     28000                     12480
Dispersion            5                         4
DSI                   5            2            4
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-090930-
Vieques-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           10           30
Temp (24h trend)      86 (+1)      71 (-3)      85
RH % (24h trend)      62 (-2)      95 (+2)      58
Wind 20ft/early(mph)  E 12         E 10         SE  5
Wind 20ft/late(mph)   E 12         E 10         SE  5
Mixing Hgt(ft-agl/msl)3040                      3210
Transport Wnd (mph)   E 14                      E  7
Vent Rate (kt-ft)     36480                     19260
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-090930-
Culebra-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           10           30
Temp (24h trend)      87 (+2)      72 (-5)      85
RH % (24h trend)      60 (-6)      93 (+5)      59
Wind 20ft/early(mph)  E 12         E 10         Lgt/Var
Wind 20ft/late(mph)   E 12         E 10         Lgt/Var
Mixing Hgt(ft-agl/msl)3180                      3140
Transport Wnd (mph)   E 12                      E  7
Vent Rate (kt-ft)     31800                     18840
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          2            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-090930-
Southwest Coastal Plains and Mona Island-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     10           60           40
Temp (24h trend)      88 (+1)      69 (-3)      88
RH % (24h trend)      52 (-3)      99 (+10)     51
Wind 20ft/early(mph)  SE 11        E 13         S  8
Wind 20ft/late(mph)   SE 11        E 13         S  8
Mixing Hgt(ft-agl/msl)3770                      3500
Transport Wnd (mph)   SE  3                     E  5
Vent Rate (kt-ft)     11310                     14000
Dispersion            5                         5
DSI                   5            3            5
LAL                   1            1            1
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-090930-
Saint Thomas and Saint John-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Mclear       Mclear       Mclear
Precip Type           Showers      Showers      Showers
Chance Precip (%)     10           10           30
Temp (24h trend)      85 (0)       73 (-3)      84
RH % (24h trend)      59 (-5)      87 (0)       58
Wind 20ft/early(mph)  E 12         E  9         S  5
Wind 20ft/late(mph)   E 12         E  9         S  5
Mixing Hgt(ft-agl/msl)3430                      3260
Transport Wnd (mph)   E 14                      SE  5
Vent Rate (kt-ft)     41160                     13040
Dispersion            5                         4
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            4            4
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-090930-
St Croix-
519 AM AST Wed Jan 8 2025

                      Today        Tonight      Thu

Cloud Cover           Clear        Mclear       Mclear
Precip Type           None         Showers      Showers
Chance Precip (%)     0            10           30
Temp (24h trend)      85 (0)       70 (-4)      84
RH % (24h trend)      63 (-2)      97 (+2)      61
Wind 20ft/early(mph)  E 12         E 10         SE  6
Wind 20ft/late(mph)   E 12         E 10         SE  6
Mixing Hgt(ft-agl/msl)3740                      4120
Transport Wnd (mph)   E 16                      SE  7
Vent Rate (kt-ft)     52360                     24720
Dispersion            5                         5
DSI                   6            6            6
LAL                   1            1            1
Haines Index          3            4            5
RH Recovery                        Excellent

Remarks...None.

$$


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