903
FNUS74 KMOB 201208
FWSMOB
SPOT FORECAST FOR DESOTO BB 8302 307/309...USFS
NATIONAL WEATHER SERVICE MOBILE AL
608 AM CST FRI FEB 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON FEBRUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SCATTERED SHOWERS ARE POSSIBLE AT THE BURN SITE TODAY WITH
NUMEROUS SHOWERS AND STORMS EXPECTED SATURDAY AFTERNOON. A FEW STRONG
STORMS WITH ERRATIC, GUSTY WINDS ARE POSSIBLE ON SATURDAY. MINIMUM RELATIVE
HUMIDITY REMAINS WELL ABOVE CRITICAL THRESHOLDS. TRANSPORT WINDS WILL BE
SOUTHWESTERLY TODAY WHILE GRADUALLY TURNING MORE WESTERLY BY SATURDAY
AFTERNOON. GUSTS UP TO 16 KNOTS POSSIBLE AT THE BURN SITE DURING THE DAY
WHILE UP TO 18 KNOTS OVERNIGHT. AFTERNOON DISPERSION WILL BE GENERALLY GOOD
TODAY AND FAIR SATURDAY.
FOG POTENTIAL AND OTHER REMARKS...FOG IS NOT EXPECTED AT THE BURN SITE.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS.
CHANCE OF PCPN......50 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......3500 FT AGL.
MIXING HEIGHT (M)...335-1067 METERS AGL.
TRANSPORT WINDS.....SOUTHWEST 12 TO 15 MPH SHIFTING TO THE
SOUTHEAST AROUND 14 MPH LATE IN THE AFTERNOON.
TRANSPORT WINDS M/S.SOUTHWEST 5 TO 7 METERS/SECOND SHIFTING TO THE
SOUTHEAST AROUND 6 METERS/SECOND LATE IN THE
AFTERNOON.
DISPERSION INDEX....20 INCREASING TO 31 LATE IN THE MORNING, THEN
INCREASING TO 54 LATE IN THE AFTERNOON
DECREASING TO 44 LATE IN THE AFTERNOON.
LVORI...............3.
STABILITY CLASS.....2.
TIME (CST) 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........78 72 53 45 47
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........S CHC S CHC S CHC S CHC S CHC
CHC OF PCPN (%).50 40 40 40 40
TEMP............70 74 79 82 81
RH..............93 82 62 55 56
20 FT WIND DIR..SSW SW SSW SSW S
20 FT WIND SPD..6 8 8 9 9
20 FT WIND GUST.14 14 15 17 16
MIX HGT (FT)....1100 1700 2000 3500 3400
MIX HGT (M).....340 520 610 1070 1040
TRANSP WIND DIR.SW SW SSW SW SSW
TRANSP WIND SPD.12 13 13 15 15
TRANS WIND DIR..SW SW SSW SW SSW
TRANS SPD (M/S).5 6 6 7 7
DISPERSION IDX..16 24 33 54 52
LVORI...........5 3 1 1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
SHOWERS IN THE EVENING. CHANCE OF SHOWERS AFTER
3 AM.
CHANCE OF PCPN......30 PERCENT.
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH. GUSTS UP TO 21 MPH
EARLY IN THE EVENING.
MIXING HEIGHT.......600 FT AGL.
MIXING HEIGHT (M)...183-305 METERS AGL.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
TRANSPORT WINDS M/S.SOUTH 4 TO 7 METERS/SECOND.
DISPERSION INDEX....10.
LVORI...............6.
STABILITY CLASS.....4.
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........52 65 80 89 93 93
WEATHER COV.....S CHC S CHC S CHC CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE RNSHWR
TSTM COV........
CHC OF PCPN (%).20 20 20 10 10 30
TEMP............76 71 70 69 70 69
RH..............71 84 90 97 93 97
20 FT WIND DIR..SSE S S S SSW SSW
20 FT WIND SPD..7 8 8 8 8 7
20 FT WIND GUST.17 21 21 21 20 18
MIX HGT (FT)....600 800 900 900 900 800
MIX HGT (M).....180 240 270 270 270 240
TRANSP WIND DIR.SE S SSW SSW SSW S
TRANSP WIND SPD.12 13 15 13 13 12
TRANS WIND DIR..SE S SSW SSW SSW S
TRANS SPD (M/S).5 6 7 6 6 5
DISPERSION IDX..9 11 12 11 11 7
LVORI...........3 4 5 7 5 8
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF
SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE MORNING, THEN SHOWERS
AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PCPN......80 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........61 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE WEST
AROUND 7 MPH LATE IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......3400 FT AGL.
MIXING HEIGHT (M)...152-1036 METERS AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE WEST 10
TO 14 MPH LATE IN THE AFTERNOON.
TRANSPORT WINDS M/S.WEST 4 TO 7 METERS/SECOND.
DISPERSION INDEX....15 INCREASING TO 33.
LVORI...............4.
STABILITY CLASS.....3.
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........87 90 81 72 69 65
WEATHER COV.....CHANCE CHANCE CHANCE DEFNTE DEFNTE DEFNTE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........ S CHC CHANCE CHANCE CHANCE
CHC OF PCPN (%).50 50 50 80 80 80
TEMP............69 71 75 79 82 81
RH..............100 97 84 69 61 63
20 FT WIND DIR..SSW SW SW WSW WSW W
20 FT WIND SPD..6 7 8 8 9 8
20 FT WIND GUST.16 16 15 15 17 17
MIX HGT (FT)....500 1400 2400 3400 2700 2300
MIX HGT (M).....150 430 730 1040 820 700
TRANSP WIND DIR.SSW SW SW WSW W W
TRANSP WIND SPD.10 13 14 15 14 12
TRANS WIND DIR..SSW SW SW WSW W W
TRANS SPD (M/S).4 6 6 7 6 5
DISPERSION IDX..11 19 29 37 33 28
LVORI...........7 5 4 3 1 2
FORECASTER...7
REQUESTED BY...JODY ROGERS
TYPE OF REQUEST...PRESCRIBED
.TAG 2603275.0/MOB
.DELDT 02/20/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSEPH.ROGERS@USDA.GOV
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