Spot Forecast
Issued by NWS Jacksonville, FL

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FNUS72 KJAX 031315
FWSJAX

Spot Forecast for RSSF RX Burn...FFS
National Weather Service Jacksonville FL
915 AM EDT Wed Sep 3 2025

Forecast is based on ignition time of 1000 EDT on September 03.
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...

A mostly dry airmass expected today with mostly clear skies
prevailing. MinRH today around 45 to 50 percent.  Northeasterly
winds will increase slightly through the day and dispersion
will be fair. Sfc winds and transport winds will be more
easterly on Thursday, with low rain chances continuing.
Dispersion values will be increased slightly on Thursday
to around 50.

.REST OF TODAY...
TIME (EDT)      8AM 9AM 10A 11A 12P 1PM
Sky (%).........8   12  20  23  33  29
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0
Temp............85  87  88  88  87  87
RH..............55  52  47  48  48  50
Heat index (F)..88  90  90  90  89  89
20 FT wind dir..NE  NE  NE  NE  E   E
20 FT wind spd..6   6   6   6   6   6
20 FT wind gust.9   9   9   9   9   9
Mix hgt (kft)...3.8 4.4 5.0 5.2 5.1 4.7
Transp wind dir.NE  NE  NE  NE  NE  NE
Transp wind spd.7   7   6   6   6   7
Dispersion idx..35  35  36  36  37  38
LVORI...........1   1   1   1   1   1

.TONIGHT...
TIME (EDT)      2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM
Sky (%).........26  23  19  15  12  10  11  12  13  11  10  6
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............85  82  77  74  73  71  70  69  69  68  67  67
RH..............53  58  69  76  79  84  87  90  90  93  93  93
Heat index (F)..87  84  77  74  73  71  70  69  69  68  67  67
20 FT wind dir..E   E   E   E   E   E   E   N   N   N   N   N
20 FT wind spd..6   6   5   3   2   1   1   0   0   0   0   0
20 FT wind gust.9   9   7   6   3   2   2
Mix hgt (kft)...3.6 1.0 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3
Transp wind dir.E   E   E   E   E   E   E   E   E   E   E   NE
Transp wind spd.8   9   9   9   8   7   6   6   5   5   3   3
Dispersion idx..35  12  4   4   4   3   3   3   2   2   2   2
LVORI...........1   2   3   3   3   4   5   5   6   7   7   9

.THURSDAY...
TIME (EDT)      2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM
Sky (%).........8   10  12  5   3   1   6   10  15  15  14  14
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............66  66  68  74  81  84  87  89  89  89  88  86
RH..............97  97  97  84  69  63  55  50  48  48  50  53
Heat index (F)..66  66  68  74  84  88  91  93  92  92  91  89
20 FT wind dir..N   N   N   NE  NE  E   E   E   E   E   E   E
20 FT wind spd..0   1   1   1   1   2   3   3   5   6   6   6
20 FT wind gust.    2   2   2   2   3   6   6   7   9   9   9
Mix hgt (kft)...0.3 0.3 0.3 1.3 2.3 3.3 4.1 4.9 5.7 5.4 5.1 4.8
Transp wind dir.NE  NE  NE  NE  E   E   E   E   E   E   E   E
Transp wind spd.3   3   3   3   5   5   5   6   6   7   8   9
Dispersion idx..2   2   3   6   14  19  24  35  40  45  49  51
LVORI...........8   8   8   5   3   2   2   1   1   1   1   1

$$
Forecaster...Shashy
Requested by...Matthew Clark
Type of request...PRESCRIBED
.TAG 2521192.0/JAX
.DELDT 09/03/25
.FormatterVersion 2.0.0
.EMAIL matthew.clark@FDACS.gov