395  
FNUS74 KMOB 201203  
FWSMOB  
 
SPOT FORECAST FOR DESOTO BLOCK 7310...USFS  
NATIONAL WEATHER SERVICE MOBILE AL  
603 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 16 KNOTS POSSIBLE AT THE BURN SITE DURING THE DAY  
WHILE UP TO 19 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.......3600 FT AGL.  
MIXING HEIGHT (M)...183-1097 METERS AGL.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
TRANSPORT WINDS M/S.SOUTHWEST 4 TO 7 METERS/SECOND.  
DISPERSION INDEX....15 INCREASING TO 27 LATE IN THE MORNING, THEN  
INCREASING TO 52 LATE IN THE AFTERNOON  
DECREASING TO 41 LATE IN THE AFTERNOON.  
LVORI...............3.  
STABILITY CLASS.....2.  
 
TIME (CST) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........84 80 64 47 48 51  
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 S CHC  
CHC OF PCPN (%).50 40 40 50 40 40  
TEMP............70 72 76 81 83 79  
RH..............93 87 74 60 53 62  
20 FT WIND DIR..SSW SW SSW SSW S SSE  
20 FT WIND SPD..6 7 7 8 9 8  
20 FT WIND GUST.15 14 14 16 17 16  
MIX HGT (FT)....600 1300 1900 3200 3600 3600  
MIX HGT (M).....180 400 580 980 1100 1100  
TRANSP WIND DIR.SSW WSW SSW SSW SW S  
TRANSP WIND SPD.10 12 12 15 15 13  
TRANS WIND DIR..SSW WSW SSW SSW SW S  
TRANS SPD (M/S).4 5 5 7 7 6  
DISPERSION IDX..11 19 27 53 52 41  
LVORI...........5 4 3 1 1 1  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF  
SHOWERS EARLY IN THE EVENING, THEN SLIGHT  
CHANCE OF SHOWERS LATE 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 6 TO 7 MPH WITH GUSTS TO AROUND 21  
MPH SHIFTING TO THE SOUTHWEST 5 TO 6 MPH EARLY  
IN THE MORNING.  
MIXING HEIGHT.......600 FT AGL.  
MIXING HEIGHT (M)...183-335 METERS AGL.  
TRANSPORT WINDS.....SOUTH 10 TO 14 MPH.  
TRANSPORT WINDS M/S.SOUTH 4 TO 6 METERS/SECOND.  
DISPERSION INDEX....10.  
LVORI...............6.  
STABILITY CLASS.....4.  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........54 66 81 89 93 93  
WEATHER COV.....CHANCE CHANCE S CHC CHANCE  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE RNSHWR  
TSTM COV........  
CHC OF PCPN (%).30 30 20 10 10 30  
TEMP............76 72 70 70 70 69  
RH..............71 84 90 93 93 97  
20 FT WIND DIR..SE SSE 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)....600 800 800 1000 1100 800  
MIX HGT (M).....180 240 240 300 340 240  
TRANSP WIND DIR.SSE S SSW SSW SSW SSW  
TRANSP WIND SPD.12 14 14 13 13 10  
TRANS WIND DIR..SSE S SSW SSW SSW SSW  
TRANS SPD (M/S).5 6 6 6 6 4  
DISPERSION IDX..9 11 12 11 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........63 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE  
NORTHWEST AROUND 7 MPH LATE IN THE AFTERNOON.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS IN THE LATE MORNING AND  
AFTERNOON.  
MIXING HEIGHT.......3300 FT AGL.  
MIXING HEIGHT (M)...183-1006 METERS AGL.  
TRANSPORT WINDS.....SOUTHWEST 12 TO 15 MPH SHIFTING TO THE WEST 10  
TO 15 MPH LATE IN THE AFTERNOON.  
TRANSPORT WINDS M/S.WEST 4 TO 7 METERS/SECOND.  
DISPERSION INDEX....15 INCREASING TO 27 LATE IN THE MORNING, THEN  
INCREASING TO 33 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 (%).50 50 50 80 80 80  
TEMP............69 71 74 79 82 81  
RH..............100 97 90 72 63 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)....600 1400 2400 3300 2600 2300  
MIX HGT (M).....180 430 730 1010 790 700  
TRANSP WIND DIR.SSW SW SW WSW W W  
TRANSP WIND SPD.12 13 14 15 15 13  
TRANS WIND DIR..SSW SW SW WSW W W  
TRANS SPD (M/S).5 6 6 7 7 6  
DISPERSION IDX..11 19 29 37 33 26  
LVORI...........7 5 4 3 1 3  
 

 
FORECASTER...7  
REQUESTED BY...CLIFF WILLIS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2602861.3/MOB  
.DELDT 02/20/26  
.FORMATTERVERSION 2.0.0  
.EMAIL CLIFTON.WILLIS@USDA.GOV  
 
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