858
FNUS74 KMOB 051014
FWSMOB
SPOT FORECAST FOR DESOTO BB 8301 KNOB CREEK...USFS
NATIONAL WEATHER SERVICE MOBILE AL
514 AM CDT TUE MAY 5 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON MAY 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
...HIGH DISPERSION INDEX AROUND 94 EXPECTED TODAY OVER
THE BURN AREA...
DISCUSSION
THERE IS A 40% CHANCE OF RAIN WEDNESDAY. FOR THE
REST OF TODAY, THE MINIMUM RELATIVE HUMIDITY IS NEAR 50%, 20 FT
WIND GUSTS WILL BE UP TO NEAR 25 MPH, TRANSPORT WINDS WILL BE
MOSTLY SOUTHERLY, AND DISPERSION VALUES WILL BE GOOD. FOR
WEDNESDAY, THE MINIMUM RELATIVE HUMIDITY IS NEAR 65%, 20 FT WIND
GUSTS WILL BE UP TO NEAR 25 MPH, TRANSPORT WINDS WILL BE MOSTLY
SOUTH-SOUTHWESTERLY, AND DISPERSION VALUES WILL BE GOOD.
FOG POTENTIAL AND OTHER REMARKS...FOG IS NOT EXPECTED.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 10 MPH WITH
GUSTS TO AROUND 23 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......4400 FT AGL.
MIXING HEIGHT (M)...183-1341 METERS AGL.
TRANSPORT WINDS.....SOUTH 8 TO 17 MPH INCREASING TO 18 TO 20 MPH
LATE IN THE AFTERNOON.
TRANSPORT WINDS M/S.SOUTH 6 TO 9 METERS/SECOND.
DISPERSION INDEX....8 INCREASING TO 41 LATE IN THE MORNING, THEN
INCREASING TO 69 LATE IN THE MORNING INCREASING
TO 79 EARLY IN THE AFTERNOON INCREASING TO 92
DECREASING TO 83 LATE IN THE AFTERNOON.
LVORI...............3.
STABILITY CLASS.....2.
TIME (CDT) 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........31 39 22 27 31
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0
TEMP............61 73 78 80 80
RH..............87 64 56 52 54
20 FT WIND DIR..S S S S S
20 FT WIND SPD..3 7 10 10 10
20 FT WIND GUST.9 15 21 22 22
MIX HGT (FT)....600 3400 4100 4400 4300
MIX HGT (M).....180 1040 1250 1340 1310
TRANSP WIND DIR.S S S S S
TRANSP WIND SPD.8 16 16 18 20
TRANS WIND DIR..S S S S S
TRANS SPD (M/S).4 7 7 8 9
DISPERSION IDX..8 66 79 94 86
LVORI...........5 1 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 66.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH WITH GUSTS TO AROUND 21
MPH BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
MIXING HEIGHT (M)...152-1311 METERS AGL.
TRANSPORT WINDS.....SOUTH 12 TO 17 MPH.
TRANSPORT WINDS M/S.SOUTH 5 TO 8 METERS/SECOND.
DISPERSION INDEX....88 DECREASING TO 10.
LVORI...............5.
STABILITY CLASS.....4.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........28 41 58 47 47 56
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............78 73 69 68 67 67
RH..............60 73 87 93 97 97
20 FT WIND DIR..S S S S S S
20 FT WIND SPD..10 9 8 7 6 6
20 FT WIND GUST.21 18 17 17 15 14
MIX HGT (FT)....4300 800 800 700 700 600
MIX HGT (M).....1310 240 240 210 210 180
TRANSP WIND DIR.S S S S S S
TRANSP WIND SPD.17 15 15 14 14 12
TRANS WIND DIR..S S S S S S
TRANS SPD (M/S).8 7 7 6 6 5
DISPERSION IDX..88 12 12 9 8 8
LVORI...........1 3 5 6 8 8
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF
SHOWERS IN THE AFTERNOON. CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........67 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 10 MPH EARLY IN
THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE AFTERNOON.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......3400 FT AGL.
MIXING HEIGHT (M)...152-1036 METERS AGL.
TRANSPORT WINDS.....SOUTH 12 TO 18 MPH.
TRANSPORT WINDS M/S.SOUTH 5 TO 8 METERS/SECOND.
DISPERSION INDEX....9 INCREASING TO 17 EARLY IN THE MORNING, THEN
INCREASING TO 30 LATE IN THE MORNING INCREASING
TO 44 LATE IN THE MORNING INCREASING TO 57
DECREASING TO 50 LATE IN THE AFTERNOON.
LVORI...............5.
STABILITY CLASS.....2.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........83 73 72 68 66 65
WEATHER COV..... CHANCE CHANCE
WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR
TSTM COV........ S CHC CHANCE
CHC OF PCPN (%).0 10 10 10 40 40
TEMP............67 69 76 80 83 85
RH..............100 100 87 79 72 67
20 FT WIND DIR..S S S S S S
20 FT WIND SPD..5 6 7 9 10 12
20 FT WIND GUST.12 13 16 20 22 22
MIX HGT (FT)....500 1100 2200 3100 3400 3100
MIX HGT (M).....150 340 670 940 1040 940
TRANSP WIND DIR.SSW SSW SSW SSW SSW SSW
TRANSP WIND SPD.12 13 14 17 18 18
TRANS WIND DIR..SSW SSW SSW SSW SSW SSW
TRANS SPD (M/S).5 6 6 8 8 8
DISPERSION IDX..7 17 40 56 61 51
LVORI...........8 5 4 3 3 1
FORECASTER...13
REQUESTED BY...JODY ROGERS
TYPE OF REQUEST...PRESCRIBED
.TAG 2612677.0/MOB
.DELDT 05/05/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSEPH.ROGERS@USDA.GOV
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