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

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5
931
FNCA52 TJSJ 220936 AAA
FWFSJU

Fire Weather Planning Forecast for Puerto Rico...UPDATED
National Weather Service San Juan PR
536 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.


PRZ014-230945-
Southeast Coastal Plains-
536 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)4120                      4310
Transport Wnd (mph)   SE  3                     SE  3
Vent Rate (kt-ft)     12360                     12930
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          4            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ015-230945-
Southern Hills-
536 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)5100                      5140
Transport Wnd (mph)   S  2                      SE  3
Vent Rate (kt-ft)     10200                     15420
Dispersion            5                         5
DSI                   4            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ016-230945-
North Coastal Plains-
536 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)4270                      4160
Transport Wnd (mph)   W  2                      SE  2
Vent Rate (kt-ft)     8540                      8320
Dispersion            4                         5
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ017-230945-
Northern Hills-
536 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)5180                      5150
Transport Wnd (mph)   SW  2                     S  2
Vent Rate (kt-ft)     10360                     10300
Dispersion            5                         4
DSI                   5            1            4
LAL                   3            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ018-230945-
West Coast-
536 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)4490                      4160
Transport Wnd (mph)   S  5                      SE  6
Vent Rate (kt-ft)     17960                     20800
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ019-230945-
Eastern Interior-
536 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)5090                      5490
Transport Wnd (mph)   S  3                      SE  3
Vent Rate (kt-ft)     15270                     16470
Dispersion            5                         5
DSI                   5            0            5
LAL                   3            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ022-230945-
Luquillo Mountain Range-
536 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)4730                      4130
Transport Wnd (mph)   SW  3                     S  5
Vent Rate (kt-ft)     14190                     16520
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ023-230945-
Central Mountain Range-
536 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)5920                      6160
Transport Wnd (mph)   S  2                      S  2
Vent Rate (kt-ft)     11840                     12320
Dispersion            5                         5
DSI                   4            1            4
LAL                   3            1            3
Haines Index          3            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ024-230945-
Cayey Mountain Range-
536 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)4680                      4590
Transport Wnd (mph)   S  3                      SE  3
Vent Rate (kt-ft)     14040                     13770
Dispersion            5                         5
DSI                   4            0            5
LAL                   2            1            2
Haines Index          4            3            3
RH Recovery                        Excellent

Remarks...None.

$$

PRZ025-230945-
Vieques-
536 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)3030                      2670
Transport Wnd (mph)   S  7                      SE  5
Vent Rate (kt-ft)     18180                     10680
Dispersion            5                         4
DSI                   6            1            6
LAL                   1            1            1
Haines Index          4            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ026-230945-
Culebra-
536 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)2980                      2830
Transport Wnd (mph)   S  7                      S  6
Vent Rate (kt-ft)     17880                     14150
Dispersion            5                         4
DSI                   6            1            6
LAL                   1            1            1
Haines Index          4            3            4
RH Recovery                        Excellent

Remarks...None.

$$

PRZ027-230945-
Southwest Coastal Plains and Mona Island-
536 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)4760                      4470
Transport Wnd (mph)   SE  6                     SE  7
Vent Rate (kt-ft)     23800                     26820
Dispersion            5                         5
DSI                   5            1            5
LAL                   2            1            2
Haines Index          4            3            3
RH Recovery                        Excellent

Remarks...None.

$$

VIZ001-230945-
Saint Thomas and Saint John-
536 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)2710                      2930
Transport Wnd (mph)   S  6                      SE  6
Vent Rate (kt-ft)     13550                     14650
Dispersion            4                         4
DSI                   6            1            6
LAL                   1            1            1
Haines Index          4            4            4
RH Recovery                        Excellent

Remarks...None.

$$

VIZ002-230945-
St Croix-
536 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)4990                      4240
Transport Wnd (mph)   S  5                      SE  3
Vent Rate (kt-ft)     19960                     12720
Dispersion            5                         4
DSI                   5            3            6
LAL                   1            1            1
Haines Index          4            3            3
RH Recovery                        Excellent

Remarks...None.

$$


$$