264
FNUS74 KHUN 281243
FWSHUN

Spot Forecast for West Fork...USFS
National Weather Service Huntsville AL
643 AM CST Fri Feb 28 2025

Forecast is based on ignition time of 0900 CST on February 28.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Sunny, warm, and dry conditions will prevail today, with high
temperatures climbing to 66 degrees. The RH will drop from
48 percent at ignition to 28 percent in the afternoon in this
warm/dry air mass. 20 ft winds will be light and out of the southwest
this morning, before increasing to 5-6 MPH in the afternoon. Mixing
heights will climb from 500 ft at ignition to 5100 ft by the afternoon,
allowing for good dispersions.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........53 at ignition...Max 66.
RH..................48 percent at ignition...Min 28 percent.
Wind (20 ft)........Winds southwest at 2 mph at
                    ignition...otherwise Light winds becoming
                    southwest 5 to 6 mph in the afternoon.
CWR.................0 percent.
Chance of pcpn......0 percent.
Mixing height.......500 ft AGL at ignition...otherwise 5100 ft AGL.
Transport winds.....West 1 to 2 mph shifting to the southeast 1 to
                    6 mph early in the morning, then increasing to
                    southwest 10 to 17 mph late in the morning.
LVORI...............3.

TIME (CST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2   2   3   3   2   3   4   3   5
WEATHER COV.....
WEATHER TYPE....
TEMP............53  57  61  64  66  66  66  66  63
RH..............48  40  33  29  28  28  28  29  35
20 FT WIND DIR..220 230 250 250 250 250 250 240 230
20 FT WIND SPD..2   3   5   6   6   7   7   6   6
20 FT WIND GUST.7   10  12  14  15  16  16  15  15
MIX HGT (KFT)...0.5 1.8 3.1 4.4 4.7 4.9 5.1 3.5 1.9
TRANSP WIND DIR.120 160 230 260 260 250 250 240 230
TRANSP WIND SPD.2   6   10  15  17  17  17  15  13
DISPERSION IDX..1   3   40  78  94  98  102 64  31
LVORI...........2   2   2   1   1   1   1   1   1
CWR.............0   0   0   0   0   0   0   0   0
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
Temperature.........Min 45.
RH..................Max 73 percent.
Wind (20 ft)........Light winds becoming southwest around 5 mph
                    with gusts to around 20 mph in the late evening
                    and overnight, then becoming light after 3 am.
CWR.................0 percent.
Chance of pcpn......0 percent.
Mixing height.......200 ft AGL.
Transport winds.....Southwest 7 to 10 mph.
LVORI...............3.

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........4   3   4   2   3   3   3   3   1   2   7   4
WEATHER COV.....
WEATHER TYPE....
TEMP............58  56  55  53  53  52  51  50  49  49  47  46
RH..............44  49  51  54  57  59  61  63  66  63  68  71
20 FT WIND DIR..230 220 230 230 240 240 240 240 250 250 260 270
20 FT WIND SPD..3   5   5   6   6   6   6   6   6   5   5   3
20 FT WIND GUST.15  15  16  17  18  20  20  20  18  18  16  15
MIX HGT (KFT)...0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.230 230 230 220 230 240 240 240 240 240 250 270
TRANSP WIND SPD.10  9   9   9   9   9   9   9   9   9   8   7
DISPERSION IDX..5   4   3   3   3   3   4   4   4   4   4   3
LVORI...........2   2   2   3   3   3   3   3   3   3   3   3
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0   0   0

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
Temperature.........Max 62.
RH..................Min 33 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 7 mph in
                    the late morning and afternoon.
CWR.................0 percent.
Chance of pcpn......0 percent.
Mixing height.......4300 ft AGL.
Transport winds.....Northwest 7 to 13 mph increasing to 15 to 22
                    mph in the late morning and afternoon.
LVORI...............2.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4   8   9   9   11  13  15  15  15  15  14  13
WEATHER COV.....
WEATHER TYPE....
TEMP............45  47  50  54  57  60  61  62  61  60  57  54
RH..............73  68  63  57  49  43  38  35  33  33  35  39
20 FT WIND DIR..290 320 330 330 330 320 320 320 320 320 320 330
20 FT WIND SPD..3   3   5   6   7   7   7   7   8   8   7   7
20 FT WIND GUST.15  15  15  15  16  16  17  18  18  18  18  17
MIX HGT (KFT)...0.2 0.9 1.5 2.2 2.7 3.2 3.7 3.9 4.1 4.3 3.6 3.0
TRANSP WIND DIR.280 300 330 350 340 330 320 320 320 320 330 330
TRANSP WIND SPD.7   9   13  15  16  16  16  17  20  21  22  22
DISPERSION IDX..3   4   6   7   7   63  71  80  95  106 96  80
LVORI...........3   3   3   2   2   2   1   1   1   1   1   1
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0   0   0

$$
Forecaster...Pritchett
Requested by...Clark
Type of request...PRESCRIBED
.TAG 2504353.0/HUN
.DELDT 02/28/25
.FormatterVersion 2.0.0
.EMAIL kerry.clark@usda.gov