293
FNUS74 KMOB 201159
FWSMOB
SPOT FORECAST FOR DESOTO BLOCK 8301...USFS
NATIONAL WEATHER SERVICE MOBILE AL
559 AM CST FRI FEB 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 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 15 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.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
MOSTLY SUNNY (40-50 PERCENT). CHANCE OF SHOWERS
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE LATE MORNING AND AFTERNOON.
CHANCE OF PCPN......50 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS IN THE LATE MORNING
AND AFTERNOON.
MIXING HEIGHT.......3400 FT AGL.
MIXING HEIGHT (M)...183-1036 METERS AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 16 MPH.
TRANSPORT WINDS M/S.SOUTHWEST 4 TO 7 METERS/SECOND.
DISPERSION INDEX....15 INCREASING TO 51.
LVORI...............4.
STABILITY CLASS.....2.
TIME (CST) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........84 78 61 44 47 52
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........ S CHC S CHC S CHC S CHC S CHC
CHC OF PCPN (%).50 40 40 50 40 40
TEMP............69 71 77 81 83 79
RH..............97 90 70 58 53 62
20 FT WIND DIR..SSW SW SSW SSW SSW SSE
20 FT WIND SPD..6 7 8 8 10 9
20 FT WIND GUST.14 14 14 16 18 17
MIX HGT (FT)....600 1200 2200 3200 3400 3400
MIX HGT (M).....180 370 670 980 1040 1040
TRANSP WIND DIR.SW WSW SSW SW SW S
TRANSP WIND SPD.10 13 13 15 16 14
TRANS WIND DIR..SW WSW SSW SW SW S
TRANS SPD (M/S).4 6 6 7 7 6
DISPERSION IDX..11 19 35 55 55 47
LVORI...........7 4 3 1 1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
SHOWERS IN THE EVENING. SLIGHT CHANCE OF
SHOWERS AFTER 3 AM.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 7 MPH. GUSTS UP TO 21 MPH
EARLY IN THE EVENING.
MIXING HEIGHT.......700 FT AGL.
MIXING HEIGHT (M)...213-305 METERS AGL.
TRANSPORT WINDS.....SOUTH 10 TO 16 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 (%).........53 68 81 89 93 94
WEATHER COV.....S CHC S CHC S CHC S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE RNSHWR
TSTM COV........
CHC OF PCPN (%).20 20 20 10 10 20
TEMP............76 72 70 70 70 69
RH..............73 86 90 93 93 97
20 FT WIND DIR..SSE S S S SSW SSW
20 FT WIND SPD..8 8 8 8 8 7
20 FT WIND GUST.17 20 21 21 20 18
MIX HGT (FT)....800 900 1000 800 800 700
MIX HGT (M).....240 270 300 240 240 210
TRANSP WIND DIR.SSE S SSW SSW SSW SSW
TRANSP WIND SPD.14 15 16 13 12 12
TRANS WIND DIR..SSE S SSW SSW SSW SSW
TRANS SPD (M/S).6 7 7 6 5 5
DISPERSION IDX..11 13 13 12 11 7
LVORI...........3 4 5 5 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........62 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.......3500 FT AGL.
MIXING HEIGHT (M)...213-1067 METERS AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 14 MPH SHIFTING TO THE WEST
LATE IN THE AFTERNOON.
TRANSPORT WINDS M/S.WEST 4 TO 6 METERS/SECOND.
DISPERSION INDEX....16 INCREASING TO 27 LATE IN THE MORNING, THEN
INCREASING TO 34 LATE IN THE MORNING DECREASING
TO 27 LATE IN THE AFTERNOON.
LVORI...............4.
STABILITY CLASS.....3.
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........88 90 81 72 69 66
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 (%).40 40 40 80 80 80
TEMP............69 71 75 79 82 80
RH..............97 97 86 69 62 65
20 FT WIND DIR..SSW SW SW SW WSW W
20 FT WIND SPD..6 7 8 8 9 8
20 FT WIND GUST.16 16 16 15 17 17
MIX HGT (FT)....700 1300 2400 3500 2800 2400
MIX HGT (M).....210 400 730 1070 850 730
TRANSP WIND DIR.SSW SW SW WSW W W
TRANSP WIND SPD.10 12 14 14 14 12
TRANS WIND DIR..SSW SW SW WSW W W
TRANS SPD (M/S).4 5 6 6 6 5
DISPERSION IDX..12 19 29 37 33 27
LVORI...........7 5 4 3 1 3
FORECASTER...7
REQUESTED BY...CLIFF WILLIS
TYPE OF REQUEST...PRESCRIBED
.TAG 2602859.3/MOB
.DELDT 02/20/26
.FORMATTERVERSION 2.0.0
.EMAIL CLIFTON.WILLIS@USDA.GOV
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