673
FNUS72 KJAX 271151
FWSJAX

Spot Forecast for Billys Island Fire...USWFS
National Weather Service Jacksonville FL
751 AM EDT Wed May 27 2026

Forecast is based on forecast start time of 1000 EDT on May 27.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (904) 741-4370 if you have questions
or concerns with this forecast.

.DISCUSSION...

Winds will be from the South through the morning hours, shifting
to be from the southwest as the sea breeze begin to push in. Peak
gusts will be around 10 mph with occasional gusts near 15 mph.
Chances of showers increase during the mid afternoon with the
highest chances during the late afternoon to early evening hours
Today. A stray storm cannot be ruled out as the sea breezes merge
during the late afternoon. Otherwise, temperatures will be in the
upper 80s,possibly crossing into the lower 90s before the arrival
of the Gulf breeze. Similar pattern is expected on Thursday, but
with winds being primarily from the southwest, which would keep
shower and storm chances again during the later part of the
afternoon.

.REST OF TODAY...
TIME (EDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........56  50  56  64  70  68  72  80
Weather cov.....                CHC CHC CHC CHC
Weather type....                RW  RW  RW  RW
Tstm cov........                CHC CHC CHC CHC
Chc of pcpn (%).0   10  10  10  30  30  50  50
Chc of thdr (%).0   10  10  10  30  30  40  50
Temp............81  83  85  88  88  88  89  88
RH..............79  74  67  61  59  59  57  57
Heat index (F)..86  90  92  96  95  95  96  94
20 FT wind dir..S   S   S   S   S   SW  SW  SW
20 FT wind spd..3   6   6   6   6   5   5   5
20 FT wind gust.10  10  10  10  12  12  10  10
Mix hgt (kft)...2.3 3.1 3.8 4.3 4.6 4.5 4.0 3.4
Transp wind dir.S   S   S   S   S   S   S   S
Transp wind spd.12  12  10  10  9   9   8   8
Dispersion idx..33  44  49  54  49  48  39  33
LVORI...........3   3   1   1   1   1   1   1

.TONIGHT...
TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........79     58     52     39     59     73
Weather cov.....CHANCE CHANCE
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   NONE
Tstm cov........CHANCE CHANCE
Chc of pcpn (%).50     30     10     0      0      10
Chc of thdr (%).50     30     10     0      0      0
Temp............86     79     74     73     72     70
RH..............63     82     97     93     93     97
Heat index (F)..92     79     74     73     72     70
20 ft wind......SW 3   S 3    N 0    N 0    N 0    N 0
20 ft wind gust.8      5      3      2      2      3
Mix hgt (ft)....2400   700    400    400    400    400
Transport wind..SW 7   SW 6   SW 6   SW 5   S 5    SW 5
Dispersion idx..21     3      3      2      2      2
LVORI...........2      5      8      8      7      7

.THURSDAY...
TIME (EDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........74        76        70        81
Weather cov.....                              LIKELY
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........                              CHANCE
Chc of pcpn (%).0         10        10        60
Chc of thdr (%).0         10        10        50
Temp............70        74        84        86
RH..............93        93        67        63
Heat index (F)..70        74        90        92
20 FT wind......N 0G3     N 0G5     SW 3G9    SW 3G12
Mix hgt (ft)....400       1300      3200      4200
Transport wind..SW 5      SW 6      SW 8      SW 8
Dispersion idx..2         9         29        34
LVORI...........7         6         3         1

$$
Forecaster...Cruz
Requested by...Andy Heisey
Type of request...WILDFIRE
.TAG 2614536.0/JAX
.DELDT 05/27/26
.FormatterVersion 2.0.0
.EMAIL robert_heisey@fws.gov