905
FNUS72 KJAX 182025
FWSJAX

Spot Forecast for Hickory Sink 08.18.26...University of Florida
National Weather Service Jacksonville FL
425 PM EDT Tue Aug 18 2026

Forecast is based on ignition time of 1715 EDT on August 18.
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.

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY...

.DISCUSSION...

Showers and thunderstorms will be building across the vicinity of
the burn site, with a potential for some storms to become severe
with variable wind gusts of 58 mph or higher and hail of 1/4 inch
or larger. Storm chances will diminish during the late night and
overnight hours with prevailing westerly winds becoming more mild
and variable through Wednesday morning. Winds will build to about
10 mph with gusts of about 15 mph, with chances for showers and
storms increasing through Wednesday afternoon bringing rainfall
and erratic winds.

.REST OF TODAY...
TIME (EDT)      5PM
Sky (%).........57
Weather cov.....CHC
Weather type....RW
Tstm cov........CHC
Chc of pcpn (%).40
Chc of thdr (%).30
Temp............94
RH..............58
Heat index (F)..109
Wind chill (F)..109
20 FT wind dir..W
20 FT wind spd..10
20 FT wind gust.21
Mix hgt (kft)...3.6
Transp wind dir.W
Transp wind spd.14
Dispersion idx..58
LVORI...........1

.TONIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........61  61  59  55  51  53  43  37  45  43  40  38
Weather cov.....CHC CHC CHC CHC CHC SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC SCH SCH
Chc of pcpn (%).40  40  40  30  30  20  20  10  10  10  10  10
Chc of thdr (%).30  40  30  20  20  10  10  10  0   0   0   0
Temp............92  90  87  84  83  82  81  80  79  79  78  78
RH..............64  66  72  80  82  85  88  91  94  91  94  94
Heat index (F)..107 103 99  94  92  90  88  87  79  79  78  78
Wind chill (F)..107 103 99  94  92  90  88  87  79  79  78  78
20 FT wind dir..W   W   SW  SW  W   W   W   W   W   W   W   W
20 FT wind spd..10  10  8   7   6   6   5   5   5   3   3   3
20 FT wind gust.21  21  20  17  14  12  12  10  10  10  10  10
Mix hgt (kft)...2.6 1.7 0.8 0.7 0.6 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.W   SW  SW  SW  W   W   W   W   W   W   W   W
Transp wind spd.14  13  13  12  10  10  9   9   9   9   8   8
Dispersion idx..46  29  11  8   7   7   6   5   5   4   4   4
LVORI...........1   3   3   4   4   4   5   6   6   6   6   6

.WEDNESDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........54  22  25  24  29  29  31  38  55  58  59  68
Weather cov.....                            SCH CHC CHC CHC CHC
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........                            SCH CHC CHC CHC CHC
Chc of pcpn (%).10  10  0   0   10  10  10  20  30  40  40  50
Chc of thdr (%).0   0   0   0   10  10  10  20  30  40  40  50
Temp............78  77  78  83  87  91  92  94  95  95  93  92
RH..............94  97  97  85  77  68  64  60  58  58  62  64
Heat index (F)..78  77  78  93  101 108 107 110 112 112 109 107
Wind chill (F)..78  77  78  93  101 108 107 110 112 112 109 107
20 FT wind dir..W   W   W   W   W   NW  W   W   W   W   W   W
20 FT wind spd..3   3   5   5   6   6   7   7   7   7   8   9
20 FT wind gust.10  10  10  12  12  10  10  12  13  13  13  14
Mix hgt (kft)...0.5 0.5 0.5 1.2 1.8 2.4 3.1 3.9 4.7 4.1 3.5 2.9
Transp wind dir.W   W   W   W   NW  NW  NW  NW  W   W   W   W
Transp wind spd.8   8   8   8   8   8   8   9   9   9   9   10
Dispersion idx..4   4   8   12  19  26  33  42  49  45  42  37
LVORI...........6   8   6   4   3   3   1   1   1   1   1   1

$$
Forecaster...Corless
Requested by...Cully Lord
Type of request...PRESCRIBED
.TAG 2619890.1/JAX
.DELDT 08/18/26
.FormatterVersion 2.0.0
.EMAIL cully@ufl.edu