Spot Forecast
Issued by NWS Birmingham, AL

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FNUS74 KBMX 012329
FWSBMX

Spot Forecast for Oak Mountain...Shelby EMA
National Weather Service Birmingham AL
629 PM CDT Thu Oct 1 2026

Forecast is based on forecast start time of 1900 CDT on October 01.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Ground and near-ground conditions: RH values will recover to the
95-100 percent range overnight. Lowest humidity values on Friday
should be around 50 percent. Low level wind direction will remain
fairly steady out of the southeast tonight through Friday, with no
large scale shifts in direction expected at this time. Calm to light
wind speeds overnight. Prevailing wind speeds will be around 5-10 mph
during the daytime hours on Friday.

Transport winds and smoke plume: A south to southeast transport wind
will generally keep the smoke plume over the west and middle portion
of the Birmingham metro area. See latest Hysplit model run output
for details.


.REST OF TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Min temperature.....Around 69.
Max humidity........100 percent.
Wind (20 ft)........Southeast winds around 5 mph in the evening
                    becoming light.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 6 to 10 mph.
Dispersion index....5.
LVORI...............6.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
Sky (%).........19     28     35     25     21     12
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............83     77     75     73     71     70
RH..............57     75     79     87     93     97
20 FT wind......SE 5   SE 5   SE 3   SE 2   SE 2   SE 1
20 FT wind gust.11     11     10     8      6      6
20 FT wind dir..140    130    130    140    140    130
Mix hgt (ft)....500    400    500    400    400    400
Transport wind..SE 9   SE 8   SE 8   SE 7   S 7    S 6
Dispersion idx..6      5      5      3      3      3
LVORI...........3      3      4      6      6      9

.FRIDAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance of
                    showers and thunderstorms late in the
                    afternoon.
CWR.................10 percent increasing to 20 percent late in the
                    afternoon.
Max temperature.....Around 90.
Min humidity........57 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......4900 ft AGL.
Transport winds.....South 6 to 8 mph shifting to the east 6 to 7
                    mph late in the afternoon.
Dispersion index....4 increasing to 40 late in the morning, then
                    decreasing to 28 late in the afternoon.
LVORI...............5.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........12     18     29     40     42     41
Weather cov.....                                   S CHC
Weather type....NONE   NONE   NONE   NONE   NONE   RNSHWR
Tstm cov........                                   S CHC
CWR.............0      0      10     10     10     20
Temp............69     71     81     88     89     87
RH..............100    97     74     60     57     57
20 FT wind......SE 1   SE 2   SE 3   SE 3   SE 3   E 2
20 FT wind gust.6      6      8      7      6      6
20 FT wind dir..130    140    140    150    150    110
Mix hgt (ft)....400    900    2700   4400   4500   3500
Transport wind..S 6    SE 7   S 8    S 8    SE 6   E 6
Dispersion idx..3      3      4      42     31     25
LVORI...........9      8      3      3      1      2

.FRIDAY NIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (50-60 percent). Slight chance of
                    showers and thunderstorms early in the evening.
                    Slight chance of showers overnight.
CWR.................20 percent.
Min temperature.....Around 70.
Max humidity........100 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms early in the evening.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 6 to 7 mph shifting to the south 3 to
                    8 mph overnight.
Dispersion index....4 increasing to 10 late in the evening, then
                    decreasing to 2 late in the evening.
LVORI...............6.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........41     44     62     57     53     61
Weather cov.....S CHC                       S CHC  S CHC
Weather type....RNSHWR NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........S CHC
CWR.............20     10     10     10     20     20
Temp............83     76     74     72     71     71
RH..............68     87     93     100    100    100
20 FT wind......E 2    E 2    SE 2   SE 1   N 0    N 0
20 FT wind gust.6      6      6      6      5      4
20 FT wind dir..090    100    150    130    000    000
Mix hgt (ft)....900    500    800    700    400    400
Transport wind..E 6    SE 7   SE 7   S 7    S 6    S 5
Dispersion idx..7      4      10     3      3      2
LVORI...........2      5      9      9      9      10

.SATURDAY...

Sky/weather.........Partly sunny (60-70 percent). Slight chance of
                    showers in the morning, then chance of showers
                    and slight chance of thunderstorms in the
                    afternoon.
CWR.................20 percent increasing to 40 percent in the
                    afternoon.
Max temperature.....Around 88.
Min humidity........64 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Mixing height.......3700 ft AGL.
Transport winds.....Southeast 3 to 7 mph.
Dispersion index....3 increasing to 22 late in the morning, then
                    decreasing to 13 late in the afternoon.
LVORI...............7.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........60  58  43  52  73  74  76  77  79  80  82  82
Weather cov.....SCH SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                            SCH SCH SCH SCH SCH
CWR.............20  20  20  20  20  20  20  40  40  40  40  40
Temp............71  70  72  75  79  82  84  86  86  86  84  82
RH..............100 100 100 94  84  76  71  65  65  64  69  73
20 FT wind dir..N   N   E   SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind dir..000 000 100 120 130 130 130 130 130 120 120 120
20 FT wind spd..0   0   1   2   2   2   2   2   2   2   2   2
20 FT wind gust.4   4   5   6   6   6   6   6   6   6   6   6
Mix hgt (kft)...0.4 0.4 1.0 1.6 2.3 2.8 3.2 3.7 3.3 2.8 2.4 1.7
Transp wind dir.S   SE  SE  S   S   S   S   S   S   SE  SE  SE
Transp wind spd.3   5   5   5   6   6   7   7   7   7   7   6
Dispersion idx..2   2   2   2   3   18  23  25  23  22  20  13
LVORI...........10  9   9   9   4   4   4   3   3   3   4   4

$$
Forecaster...Westland
Requested by...Mindy Nash
Type of request...WILDFIRE
.TAG 2622816.5/BMX
.DELDT 10/01/26
.FormatterVersion 2.0.0