057  
FNUS74 KMOB 061158  
FWSMOB  
 
SPOT FORECAST FOR CHICK 391...USFS  
NATIONAL WEATHER SERVICE MOBILE AL  
658 AM CDT FRI JUN 6 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON JUNE 06.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
...HIGH DISPERSION INDEX AROUND 101 EXPECTED SATURDAY OVER THE  
BURN AREA...  
   
DISCUSSION  
THERE IS A 30% CHANCE OF RAIN THE REST OF TODAY,  
AND A 30% CHANCE OF RAIN TONIGHT, AND A 20% CHANCE OF RAIN  
SATURDAY. FOR THE REST OF TODAY, THE MINIMUM RELATIVE HUMIDITY IS  
NEAR 50%, TRANSPORT WINDS WILL BE MOSTLY WEST-SOUTHWESTERLY, AND  
DISPERSION VALUES WILL BE GENERALLY GOOD. FOR SATURDAY, THE  
MINIMUM RELATIVE HUMIDITY IS NEAR 45%, 20 FT WIND GUSTS WILL BE  
UP TO NEAR 15 MPH, TRANSPORT WINDS WILL BE MOSTLY WESTERLY, AND  
DISPERSION VALUES WILL BE EXCELLENT.  
 
FOG POTENTIAL AND OTHER REMARKS...FOG IS NOT EXPECTED.  
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY (15-25 PERCENT) THEN BECOMING MOSTLY  
SUNNY (40-50 PERCENT). SLIGHT CHANCE OF SHOWERS  
EARLY IN THE AFTERNOON. CHANCE OF SHOWERS AND  
THUNDERSTORMS LATE IN THE AFTERNOON.  
CHANCE OF PCPN......30 PERCENT.  
MAX TEMPERATURE.....AROUND 92.  
MIN HUMIDITY........54 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH EARLY IN  
THE AFTERNOON, THEN BECOMING LIGHT LATE IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.  
MIXING HEIGHT.......5500 FT AGL.  
MIXING HEIGHT (M)...1676 METERS AGL.  
TRANSPORT WINDS.....WEST 7 TO 8 MPH.  
TRANSPORT WINDS M/S.WEST 3 TO 4 METERS/SECOND.  
DISPERSION INDEX....29 INCREASING TO 48 IN THE AFTERNOON.  
LVORI...............3 BECOMING 1.  
STABILITY CLASS.....2.  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........8 22 31 54 53 44 43 35  
WEATHER COV..... SCH SCH SCH CHC CHC  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ CHC CHC  
CHC OF PCPN (%).10 10 10 20 20 20 30 30  
TEMP............86 88 90 91 91 91 91 90  
RH..............68 66 60 56 54 56 56 58  
20 FT WIND DIR..WSW WSW WSW WSW WSW WSW WSW WSW  
20 FT WIND SPD..3 5 5 6 5 5 5 5  
20 FT WIND GUST.9 9 9 10 10 10 10 10  
MIX HGT (KFT)...2.9 3.8 4.6 5.3 5.3 5.2 5.5 5.5  
MIX HGT (KM)....0.9 1.2 1.4 1.6 1.6 1.6 1.7 1.7  
TRANSP WIND DIR.WSW WSW WSW WSW WSW WSW WSW WSW  
TRANSP WIND SPD.8 7 7 7 7 8 8 7  
TRANS WIND DIR..WSW WSW WSW WSW WSW WSW WSW WSW  
TRANS SPD (M/S).4 3 3 3 3 4 4 3  
DISPERSION IDX..29 33 35 40 44 48 44 44  
LVORI...........3 2 1 1 1 1 1 1  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.  
CHANCE OF PCPN......30 PERCENT.  
MIN TEMPERATURE.....AROUND 73.  
MAX HUMIDITY........97 PERCENT.  
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS EARLY IN THE EVENING.  
MIXING HEIGHT.......700 FT AGL.  
MIXING HEIGHT (M)...213 METERS AGL.  
TRANSPORT WINDS.....SOUTHWEST 6 TO 8 MPH SHIFTING TO THE WEST 9 TO  
12 MPH.  
TRANSPORT WINDS M/S.SOUTHWEST 3 TO 5 METERS/SECOND BECOMING 3 TO 4  
METERS/SECOND IN THE LATE EVENING AND  
OVERNIGHT, THEN SHIFTING TO THE WEST 4 TO 5  
METERS/SECOND AFTER 3 AM.  
DISPERSION INDEX....44 DECREASING TO 4.  
LVORI...............1 BECOMING 8.  
STABILITY CLASS.....4.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........44 40 40 31 31 27 20 11 16 20 14 16  
WEATHER COV.....CHC  
WEATHER TYPE....RW  
TSTM COV........CHC  
CHC OF PCPN (%).30 10 10 10 0 0 0 0 0 0 0 0  
TEMP............90 87 83 80 79 77 76 75 75 74 74 74  
RH..............58 63 74 82 85 88 90 94 94 97 97 93  
20 FT WIND DIR..SW SW SW S S SSW SSW SSW SW SW WSW WSW  
20 FT WIND SPD..3 2 3 3 3 3 3 3 3 3 5 5  
20 FT WIND GUST.9 9 9 10 10 12 12 13 13 13 14 14  
MIX HGT (KFT)...5.5 1.6 0.7 0.7 0.7 0.8 0.9 0.9 1.0 1.0 1.0 0.9  
MIX HGT (KM)....1.7 0.5 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3  
TRANSP WIND DIR.WSW SW SSW S SSW S SSW SSW SW WSW WSW W  
TRANSP WIND SPD.8 6 7 7 9 9 10 10 10 12 9 12  
TRANS WIND DIR..WSW SW SSW S SSW S SSW SSW SW WSW WSW W  
TRANS SPD (M/S).4 3 3 3 4 4 4 4 4 5 4 5  
DISPERSION IDX..44 3 3 3 4 4 5 4 5 5 5 5  
LVORI...........1 3 3 5 5 5 6 6 6 8 8 7  
   
SATURDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). SLIGHT CHANCE OF  
THUNDERSTORMS EARLY IN THE AFTERNOON. SLIGHT  
CHANCE OF SHOWERS IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 94.  
MIN HUMIDITY........48 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 6 MPH EARLY IN  
THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS EARLY IN THE AFTERNOON.  
MIXING HEIGHT.......6300 FT AGL.  
MIXING HEIGHT (M)...1920 METERS AGL.  
TRANSPORT WINDS.....WEST 10 TO 16 MPH.  
TRANSPORT WINDS M/S.WEST 4 TO 7 METERS/SECOND.  
DISPERSION INDEX....5 INCREASING TO 101.  
LVORI...............7 BECOMING 1.  
STABILITY CLASS.....2.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........26 35 22 23 22 17 20 22 23 25 26 29  
WEATHER COV..... SCH SCH SCH SCH SCH  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ SCH SCH SCH  
CHC OF PCPN (%).0 0 0 0 0 0 0 20 20 20 20 20  
TEMP............73 74 76 80 85 87 90 92 93 93 94 92  
RH..............93 93 94 85 70 65 58 52 51 49 48 51  
20 FT WIND DIR..WSW WSW WSW WSW WSW WSW WSW WSW WSW WSW WSW WSW  
20 FT WIND SPD..5 5 6 6 6 6 7 7 7 7 7 6  
20 FT WIND GUST.14 14 14 14 14 14 15 15 15 15 15 14  
MIX HGT (KFT)...0.9 1.2 1.8 2.3 2.9 3.6 4.4 5.1 5.5 5.9 6.3 6.3  
MIX HGT (KM)....0.3 0.4 0.5 0.7 0.9 1.1 1.3 1.6 1.7 1.8 1.9 1.9  
TRANSP WIND DIR.W W W W W W W W W W W W  
TRANSP WIND SPD.10 13 16 16 15 14 14 15 15 15 15 13  
TRANS WIND DIR..W W W W W W W W W W W W  
TRANS SPD (M/S).4 6 7 7 7 6 6 7 7 7 7 6  
DISPERSION IDX..5 21 36 46 54 61 70 83 91 97 101 93  
LVORI...........7 4 4 4 3 1 1 1 1 1 1 1  
 
 
FORECASTER...22  
REQUESTED BY...RODNEY LANDRUM  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2515448.0/MOB  
.DELDT 06/06/25  
.FORMATTERVERSION 2.0.0  
.EMAIL RODNEY.LANDRUM@USDA.GOV  
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