439
FNUS74 KHUN 120824
FWSHUN

Spot Forecast for Jim Brown...USFS
National Weather Service Huntsville AL
324 AM CDT Wed Mar 12 2025

Forecast is based on ignition time of 0800 CDT on March 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Mixing heights at ignition time will be below 500 feet and climb
to above 2000 feet after 11 AM before reaching a maximum of 4000
feet around 3 PM. Southwesterly 20 foot winds of 2 to 3 mph at
ignition time will increase to between 5 and 6 mph gusting to
around 14 mph at times after 10 AM. Southwesterly transport winds
around ignition time near 9 mph with increase to between 15 and 20
mph after 10 AM. Relative humidity values around ignition time
will be around 71 percent and drop to between 23 and 26 percent
between 3 and 5 PM. Sunny skies are expected today.

Mixing heights at ignition time will be around 1200 feet and
climb to above 2000 feet after noon before reaching a maximum of
3700 feet around 3 PM. 20 foot winds from the SSW around 6 mph at
ignition time are expected with some gusts between 10 and 15 mph
possible. These winds will continue through the afternoon hours.
Transport winds from the SSW at ignition time will decrease to
around 10 mph after 2 PM. Relative humidity values around ignition
time will be around 90 percent and drop only to around 60 percent
between 3 and 5 PM. Rain and scattered storms are expected, but a
wetting rainfall may not occur on fuels. A few storms could be
strong to severe producing large hail and damaging winds.


.REST OF TODAY...

Sky/weather.........Sunny (0-5 percent).
Max temperature.....Around 77.
Min humidity........23 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 6 mph in
                    the late morning and afternoon.
CWR.................0 percent.
Chance of pcpn......0 percent.
Mixing height.......4000 ft AGL.
Transport winds.....Southwest 9 to 17 mph.
LVORI...............3.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........3   0   2   2   2   3   2   2   4   2
WEATHER COV.....
WEATHER TYPE....
TEMP............48  55  61  65  69  72  73  76  77  74
RH..............71  61  51  43  35  30  27  23  23  26
20 FT WIND DIR..200 220 220 210 210 200 200 200 200 200
20 FT WIND SPD..2   3   5   6   6   7   7   7   7   6
20 FT WIND GUST.12  14  15  16  15  16  16  17  17  17
MIX HGT (KFT)...0.4 0.9 1.5 2.2 3.4 3.7 3.8 4.0 3.6 3.5
TRANSP WIND DIR.240 230 220 200 200 200 210 210 200 200
TRANSP WIND SPD.9   10  12  13  15  16  17  17  16  16
DISPERSION IDX..4   5   5   35  63  72  79  82  70  69
LVORI...........4   4   1   1   1   1   1   1   1   1
CWR.............0   0   0   0   0   0   0   0   0   0
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent) then becoming
                    mostly cloudy (70-80 percent).
Min temperature.....Around 54.
Max humidity........93 percent.
Wind (20 ft)........South winds 5 to 6 mph early in the evening
                    becoming light, then becoming south around 5
                    mph late in the evening.
CWR.................10 percent.
Chance of pcpn......10 percent.
Mixing height.......500 ft AGL.
Transport winds.....South 12 to 15 mph.
LVORI...............3.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........3   4   5   7   7   20  33  68  82  79  83  86
WEATHER COV.....
WEATHER TYPE....
TEMP............69  66  63  61  59  58  57  57  57  56  56  56
RH..............35  45  52  56  62  64  67  69  75  80  83  86
20 FT WIND DIR..200 190 180 190 180 180 190 190 200 200 190 190
20 FT WIND SPD..6   5   3   3   3   5   5   5   5   5   5   5
20 FT WIND GUST.15  15  15  15  15  15  16  16  16  16  16  16
MIX HGT (KFT)...1.9 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6
TRANSP WIND DIR.190 190 190 190 190 190 190 200 200 200 200 200
TRANSP WIND SPD.15  12  12  12  12  13  14  14  14  14  14  13
DISPERSION IDX..36  9   8   8   8   9   6   9   9   9   9   8
LVORI...........1   2   2   2   3   3   3   4   4   4   5   5
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0   0   10

.THURSDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (35-45 percent).
Max temperature.....Around 72.
Min humidity........59 percent.
Wind (20 ft)........South winds around 5 mph early in the morning
                    becoming light, then becoming south 5 to 6 mph
                    early in the morning becoming light.
CWR.................70 percent.
Chance of pcpn......70 percent.
Mixing height.......3700 ft AGL.
Transport winds.....Southwest 7 to 14 mph.
LVORI...............4.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........89  88  89  83  77  74  70  67  62  56  51  42
WEATHER COV.....
WEATHER TYPE....
TEMP............55  55  56  58  61  63  65  67  69  70  70  69
RH..............93  93  90  87  84  78  73  68  63  60  59  61
20 FT WIND DIR..180 190 190 190 190 190 200 200 200 200 200 190
20 FT WIND SPD..5   3   5   6   6   6   6   6   6   5   5   3
20 FT WIND GUST.16  15  15  16  16  16  15  14  13  13  12  10
MIX HGT (KFT)...0.7 0.7 1.2 1.4 1.4 1.8 2.3 2.8 3.3 3.7 3.6 2.9
TRANSP WIND DIR.180 190 210 210 200 210 220 220 220 220 220 210
TRANSP WIND SPD.14  12  13  14  14  13  12  10  9   9   8   7
DISPERSION IDX..9   5   8   9   9   23  24  24  23  24  21  25
LVORI...........5   5   5   5   3   3   3   2   2   2   2   2
CWR.............10  70  70  70  70  70  70  70  70  70  70  70
CHC OF PCPN (%).10  70  70  70  70  70  70  70  70  70  70  70

$$
Forecaster...Weber
Requested by...Clark
Type of request...PRESCRIBED
.TAG 2506008.0/HUN
.DELDT 03/12/25
.FormatterVersion 2.0.0
.EMAIL kerry.clark@usda.gov,gary.c.moore@usda.gov