Spot Forecast
Issued by NWS Huntsville, AL

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000
FNUS74 KHUN 231012
FWSHUN

Spot Forecast for Walston Ridge...USFS
National Weather Service Huntsville AL
512 AM CDT Tue Apr 23 2024

Forecast is based on ignition time of 0900 CDT on April 23.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Winds will remain out of the south today, with 20 ft winds
around 10-12 mph in the afternoon (and gusts up to 15-20 mph).
Temperatures will climb into the mid 70s this afternoon which
will knock Min RH values down to around 31 percent. Mixing
heights will increase from 2.3 kft at ignition to 4.4 kft this
afternoon, with good dispersion expected. No chance of rain as
fuels will remain very dry.


.TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........55 at ignition...Max 74.
RH..................64 percent at ignition...Min 31 percent.
Wind (20 ft)........Winds south at 9 mph at ignition...otherwise
                    South winds 8 to 9 mph.
Chance of pcpn......0 percent.
Mixing height.......2300 ft AGL at ignition...otherwise 4400 ft
                    AGL.
Transport winds.....South 13 to 20 mph.
LVORI...............2.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........0   2   2   0   1   1   2   5   4
WEATHER COV.....
WEATHER TYPE....
TEMP............55  64  67  68  71  72  73  73  72
RH..............64  46  39  37  34  31  31  33  34
20 FT WIND DIR..180 190 200 200 200 200 200 200 200
20 FT WIND SPD..9   10  10  12  10  10  12  12  12
20 FT WIND GUST.14  15  16  17  16  16  17  17  17
MIX HGT (KFT)...2.3 3.4 3.7 4.0 4.3 4.3 4.4 4.4 3.0
TRANSP WIND DIR.190 200 200 200 200 200 200 200 200
TRANSP WIND SPD.13  16  17  17  17  18  20  20  17
DISPERSION IDX..8   11  77  64  88  94  76  76  56
LVORI...........3   1   1   1   1   1   1   1   1
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent) then becoming
                    mostly cloudy (50-60 percent).
Temperature.........Min 52.
RH..................Max 89 percent.
Wind (20 ft)........Southwest winds around 8 mph.
Chance of pcpn......0 percent.
Mixing height.......100 ft AGL.
Transport winds.....Southwest 6 to 13 mph.
LVORI...............3.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........7   4   2   2   1   4   3   5   15  44  51  54
WEATHER COV.....
WEATHER TYPE....
TEMP............71  68  63  60  57  56  55  55  54  53  53  54
RH..............35  43  54  60  67  72  72  72  77  80  83  83
20 FT WIND DIR..200 200 200 200 200 210 210 210 210 220 220 220
20 FT WIND SPD..10  10  9   9   9   9   9   10  10  9   9   9
20 FT WIND GUST.17  15  14  14  13  13  14  15  14  14  14  14
MIX HGT (KFT)...1.7 0.3 0.2 0.2 0.2 0.2 0.1 0.1 0.2 0.2 0.3 0.3
TRANSP WIND DIR.200 200 200 200 200 210 210 210 210 220 220 220
TRANSP WIND SPD.13  9   7   6   6   6   6   7   7   8   8   8
DISPERSION IDX..27  3   2   2   1   1   4   5   5   7   7   7
LVORI...........1   2   2   2   3   3   3   4   4   4   4   4
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0   0   0

.WEDNESDAY...

Sky/weather.........Partly sunny (65-75 percent).
Temperature.........Max 75.
RH..................Min 46 percent.
Wind (20 ft)........Southwest winds 6 to 7 mph shifting to the
                    north around 5 mph late in the afternoon.
Chance of pcpn......10 percent.
Mixing height.......2600 ft AGL.
Transport winds.....Southwest 7 to 8 mph shifting to the west 5 to
                    8 mph in the afternoon.
LVORI...............4.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........63  82  68  57  59  58  58  57  57  57  57  53
WEATHER COV.....
WEATHER TYPE....
TEMP............52  54  55  59  65  67  70  72  73  74  75  74
RH..............89  86  86  78  68  63  58  53  52  47  46  47
20 FT WIND DIR..220 230 230 250 280 300 310 320 330 340 340 350
20 FT WIND SPD..8   8   7   8   7   7   7   7   7   6   6   6
20 FT WIND GUST.12  12  10  12  10  10  10  10  10  9   9   9
MIX HGT (KFT)...0.3 0.3 0.6 0.9 1.2 1.7 2.2 2.6 2.3 2.0 1.8 1.4
TRANSP WIND DIR.210 210 220 230 240 250 260 270 270 280 280 260
TRANSP WIND SPD.7   7   7   8   8   8   8   8   7   7   6   5
DISPERSION IDX..6   6   5   7   5   17  21  24  19  17  13  8
LVORI...........4   5   5   5   2   2   2   2   2   2   2   2
CHC OF PCPN (%).0   0   0   0   0   0   0   10  10  10  10  10

$$
Forecaster...Pritchett
Requested by...Clark
Type of request...PRESCRIBED
.TAG 2411823.0/HUN
.DELDT 04/23/24
.FormatterVersion 2.0.0
.EMAIL kerry.clark@usda.gov


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