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

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087
FNCA52 TJSJ 220759
FWFSJU

Fire Weather Planning Forecast for Puerto Rico
National Weather Service San Juan PR
359 AM AST Sun Sep 22 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.


PRZ014-230800-
Southeast Coastal Plains-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     40           20           40
Temp (24h trend)      94 (+1)      76 (-3)      93
RH % (24h trend)      54 (-4)      95 (+9)      57
Wind 20ft/early(mph)  S  8         Lgt/Var      S  8
Wind 20ft/late(mph)   S  8         Lgt/Var      S  8
Mixing Hgt(ft-agl/msl)4270                      4610
Transport Wnd (mph)   SE  5                     SE  3
Vent Rate (kt-ft)     17080                     13830
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-230800-
Southern Hills-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           10           60
Temp (24h trend)      90 (+2)      72 (-4)      89
RH % (24h trend)      58 (-4)      97 (+9)      62
Wind 20ft/early(mph)  S  6         Lgt/Var      S  6
Wind 20ft/late(mph)   S  6         Lgt/Var      S  6
Mixing Hgt(ft-agl/msl)4960                      5180
Transport Wnd (mph)   SE  5                     SE  3
Vent Rate (kt-ft)     19840                     15540
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-230800-
North Coastal Plains-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           20           70
Temp (24h trend)      91 (-1)      76 (-3)      90
RH % (24h trend)      64 (-2)      98 (+8)      67
Wind 20ft/early(mph)  N  8         Lgt/Var      NE  8
Wind 20ft/late(mph)   N  8         Lgt/Var      NE  8
Mixing Hgt(ft-agl/msl)4410                      4350
Transport Wnd (mph)   S  2                      S  1
Vent Rate (kt-ft)     8820                      4350
Dispersion            5                         4
DSI                   5            2            4
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-230800-
Northern Hills-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           10           90
Temp (24h trend)      90 (0)       75 (-2)      89
RH % (24h trend)      61 (-4)      96 (+5)      65
Wind 20ft/early(mph)  NW  8        Lgt/Var      N  6
Wind 20ft/late(mph)   NW  8        Lgt/Var      N  6
Mixing Hgt(ft-agl/msl)5150                      5130
Transport Wnd (mph)   S  2                      S  1
Vent Rate (kt-ft)     10300                     5130
Dispersion            4                         4
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-230800-
West Coast-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     60           10           60
Temp (24h trend)      92 (-1)      74 (-2)      91
RH % (24h trend)      60 (-2)      99 (+5)      63
Wind 20ft/early(mph)  SW  8        Lgt/Var      S  8
Wind 20ft/late(mph)   SW  8        Lgt/Var      S  8
Mixing Hgt(ft-agl/msl)4240                      4270
Transport Wnd (mph)   S  5                      SE  6
Vent Rate (kt-ft)     16960                     21350
Dispersion            5                         5
DSI                   5            3            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-230800-
Eastern Interior-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     70           20           60
Temp (24h trend)      91 (+1)      74 (-3)      89
RH % (24h trend)      59 (-3)      98 (+8)      65
Wind 20ft/early(mph)  S  6         Lgt/Var      S  6
Wind 20ft/late(mph)   S  6         Lgt/Var      S  6
Mixing Hgt(ft-agl/msl)5270                      5420
Transport Wnd (mph)   S  5                      S  3
Vent Rate (kt-ft)     21080                     16260
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-230800-
Luquillo Mountain Range-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     40           20           50
Temp (24h trend)      88 (+3)      71 (-4)      85
RH % (24h trend)      61 (-6)      99 (+7)      69
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      S  5
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      S  5
Mixing Hgt(ft-agl/msl)4370                      4440
Transport Wnd (mph)   S  5                      S  3
Vent Rate (kt-ft)     17480                     13320
Dispersion            5                         4
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-230800-
Central Mountain Range-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Mclear       Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     80           10           90
Temp (24h trend)      88 (+2)      70 (-4)      87
RH % (24h trend)      62 (-4)      98 (+5)      66
Wind 20ft/early(mph)  SW  6        Lgt/Var      S  5
Wind 20ft/late(mph)   SW  6        Lgt/Var      S  5
Mixing Hgt(ft-agl/msl)5780                      5850
Transport Wnd (mph)   S  2                      S  2
Vent Rate (kt-ft)     11560                     11700
Dispersion            5                         5
DSI                   4            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-230800-
Cayey Mountain Range-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     50           20           40
Temp (24h trend)      88 (+1)      72 (-2)      86
RH % (24h trend)      58 (-3)      99 (+7)      65
Wind 20ft/early(mph)  S  5         Lgt/Var      S  5
Wind 20ft/late(mph)   S  5         Lgt/Var      S  5
Mixing Hgt(ft-agl/msl)4670                      4930
Transport Wnd (mph)   S  5                      S  2
Vent Rate (kt-ft)     18680                     9860
Dispersion            5                         4
DSI                   5            0            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-230800-
Vieques-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           20           20
Temp (24h trend)      91 (+1)      75 (-4)      90
RH % (24h trend)      58 (-4)      97 (+11)     63
Wind 20ft/early(mph)  S  5         Lgt/Var      S  5
Wind 20ft/late(mph)   S  5         Lgt/Var      S  5
Mixing Hgt(ft-agl/msl)2850                      3160
Transport Wnd (mph)   S  6                      SE  5
Vent Rate (kt-ft)     14250                     12640
Dispersion            4                         4
DSI                   6            2            6
LAL                   1            1            1
Haines Index          4            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-230800-
Culebra-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     30           20           10
Temp (24h trend)      93 (+3)      78 (-3)      91
RH % (24h trend)      56 (-8)      93 (+9)      59
Wind 20ft/early(mph)  S  5         Lgt/Var      S  5
Wind 20ft/late(mph)   S  5         Lgt/Var      S  5
Mixing Hgt(ft-agl/msl)2860                      2950
Transport Wnd (mph)   S  6                      SE  5
Vent Rate (kt-ft)     14300                     11800
Dispersion            4                         4
DSI                   6            2            6
LAL                   1            1            1
Haines Index          4            4            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-230800-
Southwest Coastal Plains and Mona Island-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Tstms        Showers      Tstms
Chance Precip (%)     40           10           40
Temp (24h trend)      94 (0)       76 (-3)      94
RH % (24h trend)      55 (-3)      93 (+8)      58
Wind 20ft/early(mph)  S  9         NE  5        SE 10
Wind 20ft/late(mph)   S  9         NE  5        SE 10
Mixing Hgt(ft-agl/msl)4540                      4500
Transport Wnd (mph)   SE  7                     SE  8
Vent Rate (kt-ft)     27240                     31500
Dispersion            5                         5
DSI                   5            2            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-230800-
Saint Thomas and Saint John-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Mclear       Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     20           10           10
Temp (24h trend)      89 (0)       78 (-3)      89
RH % (24h trend)      60 (-3)      90 (+7)      63
Wind 20ft/early(mph)  Lgt/Var      Lgt/Var      Lgt/Var
Wind 20ft/late(mph)   Lgt/Var      Lgt/Var      Lgt/Var
Mixing Hgt(ft-agl/msl)2940                      2880
Transport Wnd (mph)   SE  1                     SE  3
Vent Rate (kt-ft)     2940                      8640
Dispersion            2                         4
DSI                   5            1            6
LAL                   1            1            1
Haines Index          4            4            4
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-230800-
St Croix-
359 AM AST Sun Sep 22 2024

                      Today        Tonight      Mon

Cloud Cover           Mclear       Pcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Precip (%)     10           20           20
Temp (24h trend)      90 (0)       76 (-3)      90
RH % (24h trend)      62 (0)       95 (+7)      65
Wind 20ft/early(mph)  S  5         SE  5        Lgt/Var
Wind 20ft/late(mph)   S  5         SE  5        Lgt/Var
Mixing Hgt(ft-agl/msl)4600                      4800
Transport Wnd (mph)   S  5                      SE  5
Vent Rate (kt-ft)     18400                     19200
Dispersion            5                         5
DSI                   5            2            6
LAL                   1            1            1
Haines Index          4            3            4
RH Recovery                        Excellent

Remarks...None.

$$


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