Spot Forecast
Issued by NWS Jacksonville, FL

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FNUS72 KJAX 171633
FWSJAX

Spot Forecast for 215G...USFA
National Weather Service Jacksonville FL
1233 PM EDT Sun Aug 17 2025

Forecast is based on forecast start time of 0500 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.

...AREAS OF HIGH DISPERSIONS TUESDAY...

.DISCUSSION...

A trough of low pressure will extend across the area Today and
Tonight. High pressure will build down the southeastern coast of the
US Tuesday and Wednesday, as Hurricane Erin passes well to the east.

Daily rounds of showers and thunderstorms, mainly in the afternoon
and evening hours. Gusty and erratic winds possible in and near
thunderstorms.

.REST OF TONIGHT...
TIME (EDT)      5AM
Sky (%).........33
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0
Chc of thdr (%).0
Temp............73
RH..............100
Heat index (F)..73
Wind chill (F)..73
20 FT wind dir..N
20 FT wind spd..0
20 FT wind gust.
Mix hgt (kft)...0.4
Transp wind dir.NE
Transp wind spd.5
Dispersion idx..2
LVORI...........9

.MONDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........39  44  44  34  27  37  38  38  43  52  34  40
Weather cov.....                SCH SCH SCH CHC CHC LKY LKY CHC
Weather type....                RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                    SCH SCH CHC CHC LKY LKY CHC
Chc of pcpn (%).0   0   10  10  20  20  20  30  50  60  60  40
Chc of thdr (%).0   0   10  10  10  20  20  30  50  60  60  40
Temp............73  73  74  78  82  84  86  86  88  88  89  87
RH..............100 97  100 94  85  80  75  72  68  68  64  68
Heat index (F)..73  73  74  78  90  94  97  96  99  99  99  96
Wind chill (F)..73  73  74  78  82  84  86  86  88  88  89  87
20 FT wind dir..N   NE  NE  NE  NE  NE  NE  NE  NE  E   E   E
20 FT wind spd..0   1   2   2   3   5   5   6   6   6   6   6
20 FT wind gust.    2   3   3   6   7   7   9   9   9   9   9
Mix hgt (kft)...0.4 0.4 0.4 1.0 1.8 2.7 3.4 3.7 4.0 3.5 3.0 2.5
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  E   E   E   E   E
Transp wind spd.5   5   5   6   7   7   8   9   9   9   9   9
Dispersion idx..2   2   5   7   15  25  35  43  47  40  36  30
LVORI...........9   8   9   6   4   3   3   2   2   2   2   3

.MONDAY NIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........68  46  36  24  20  15  13  11  9   10  11  12
Weather cov.....CHC CHC
Weather type....RW  RW
Tstm cov........CHC CHC
Chc of pcpn (%).30  30  0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).30  30  0   0   0   0   0   0   0   0   0   0
Temp............86  84  82  80  78  77  76  76  75  74  73  73
RH..............70  72  77  79  85  87  90  90  94  97  97  97
Heat index (F)..95  91  88  84  78  77  76  76  75  74  73  73
Wind chill (F)..86  84  82  80  78  77  76  76  75  74  73  73
20 FT wind dir..E   E   E   E   E   E   E   NE  NE  NE  NE  NE
20 FT wind spd..6   5   3   2   2   2   2   1   1   1   1   1
20 FT wind gust.9   7   6   3   3   3   3   2   2   2   2   2
Mix hgt (kft)...1.8 1.2 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.E   E   E   E   E   E   E   E   E   E   NE  NE
Transp wind spd.9   9   9   10  10  9   9   8   7   6   5   5
Dispersion idx..22  14  4   4   4   4   4   3   3   3   2   2
LVORI...........3   3   4   4   5   6   6   6   7   8   8   9

.TUESDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........12  11  11  12  12  13  13  14  14  18  21  25
Weather cov.....                                SCH SCH SCH SCH
Weather type....                                RW  RW  RW  RW
Tstm cov........                                SCH SCH SCH SCH
Chc of pcpn (%).0   0   10  10  10  10  10  10  20  20  20  20
Chc of thdr (%).0   0   0   0   0   10  10  10  20  20  20  20
Temp............72  73  74  78  82  86  88  90  91  92  92  91
RH..............100 97  97  88  79  72  66  60  56  54  52  54
Heat index (F)..72  73  74  78  89  96  98  99  100 101 100 99
Wind chill (F)..72  73  74  78  82  86  88  90  91  92  92  91
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..1   1   2   3   5   6   7   7   7   7   7   7
20 FT wind gust.2   2   3   6   7   9   10  10  10  10  10  10
Mix hgt (kft)...0.4 0.4 0.5 1.3 2.2 3.1 3.9 4.8 5.6 5.8 6.0 6.2
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Transp wind spd.5   5   6   7   9   12  13  14  14  14  14  13
Dispersion idx..2   2   6   12  27  46  60  78  89  91  95  91
LVORI...........9   9   8   5   3   2   1   1   1   1   1   1

$$
Forecaster...Struble
Requested by...FICC
Type of request...WILDFIRE
.TAG 2520082.0/JAX
.DELDT 08/17/25
.FormatterVersion 2.0.0
.EMAIL flfic@firenet.gov