Spot Forecast
Issued by NWS Jacksonville, FL

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FNUS72 KJAX 091200
FWSJAX

Spot Forecast for Guana River WMA...FWC
National Weather Service Jacksonville FL
800 AM EDT Tue Apr 9 2024

Forecast is based on ignition time of 0800 EDT on April 09.
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.

...ELEVATED NIGHTTIME DISPERSION VALUES TONIGHT...

.DISCUSSION...

Dry weather will prevail through the early morning hours on
Thursday. Southerly surface and transport winds will begin
to strengthen around ignition time, followed by winds
shifting to southeasterly during the mid to late morning hours.
Breezy conditions after ignition time will create fair daytime
dispersion values at the burn site today, with nighttime
dispersion values remaining elevated overnight as transport
winds remain breezy overnight as they gradually shift to
south-southeasterly and then southerly towards sunrise.
Breezy southerly surface and transport winds on Wednesday
morning will shift again to south-southeasterly by the
early afternoon hours, with these breezy conditions resulting
in fair daytime dispersion values again on Wednesday.

.REST OF TODAY...
TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........43  45  46  42  44  31  26  22  19  34
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1
Temp............64  67  70  73  74  76  77  77  77  77
RH..............87  84  76  68  66  60  58  60  60  60
Heat index (F)..64  67  70  73  74  76  77  77  77  77
20 FT wind dir..S   SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..6   8   12  13  13  14  14  14  14  13
20 FT wind gust.9   13  17  20  20  21  21  21  21  20
Mix hgt (kft)...0.5 0.8 1.6 2.0 2.0 1.9 2.0 1.8 1.6 1.3
Transp wind dir.S   S   S   SE  SE  SE  SE  SE  SE  SE
Transp wind spd.10  12  14  15  16  17  17  17  16  16
Dispersion idx..10  15  30  40  40  45  45  40  35  30
LVORI...........5   4   3   2   2   2   2   2   2   2

.TONIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........23  22  48  56  64  61  70  79  81  82  78  77
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............76  75  73  71  70  70  69  69  68  67  67  67
RH..............60  60  70  75  78  78  81  81  84  87  87  87
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  S   S
20 FT wind spd..14  14  13  13  12  12  10  9   9   9   9   9
20 FT wind gust.21  21  20  20  17  17  16  14  14  14  14  14
Mix hgt (kft)...0.8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  S   S
Transp wind spd.16  16  16  17  17  17  16  15  15  15  15  15
Dispersion idx..20  15  15  15  15  15  15  15  15  15  15  15
LVORI...........3   3   3   4   4   4   4   4   4   4   5   5

.WEDNESDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........82  82  78  87  86  84  79  73  68  63  57  52
Chc of pcpn (%).0   0   0   0   0   0   0   0   10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............66  65  65  69  73  76  78  79  79  79  79  78
RH..............90  93  93  81  70  65  60  60  60  60  60  65
Heat index (F)..66  65  65  69  73  76  78  79  79  79  79  78
20 FT wind dir..S   S   S   S   S   SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..9   8   12  13  13  14  15  15  16  16  17  17
20 FT wind gust.14  13  17  20  20  21  23  23  24  24  26  26
Mix hgt (kft)...0.5 0.5 0.6 1.1 1.6 2.1 2.1 2.1 2.1 2.0 1.8 1.7
Transp wind dir.S   S   S   S   S   S   S   SE  SE  SE  SE  SE
Transp wind spd.15  15  15  15  16  17  16  16  16  17  18  20
Dispersion idx..15  15  15  20  35  40  40  40  40  45  45  45
LVORI...........5   5   5   3   3   2   2   2   2   2   2   2

$$
Forecaster...Nelson
Requested by...FWC
Type of request...PRESCRIBED
.TAG 2410032.0/JAX
.DELDT 04/09/24
.FormatterVersion 2.0.0
.EMAIL wade.brenner@myfwc.com


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