909  
FNUS74 KMOB 142156  
FWSMOB  
 
SPOT FORECAST FOR DESOTO SITE PREP C-16...USFS  
NATIONAL WEATHER SERVICE MOBILE AL  
456 PM CDT SAT SEP 14 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 1700 CDT ON SEPTEMBER 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL  
WEATHER SERVICE.  
   
DISCUSSION
 
OTHER THAN A SMALL CHANCE FOR RAIN THIS EVENING OVER  
INTERIOR SOUTHEAST MISSISSIPPI, DRY CONDITIONS WILL PREVAIL OVER  
THE BURN AREA THROUGH MID WEEK. AFTERNOON RELATIVE HUMIDITIES  
REMAIN ABOVE CRITICAL LEVELS. DISPERSION VALUES WILL BE GOOD ON  
SUNDAY. TRANSPORT WINDS WILL BE NORTHEASTERLY THROUGH MONDAY.  
 
FOG POTENTIAL AND OTHER REMARKS...FOG DEVELOPMENT IS NOT EXPECTED  
THROUGH MONDAY NIGHT.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 94.  
MIN HUMIDITY........40 PERCENT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......6600 FT AGL.  
MIXING HEIGHT (M)...2012 METERS AGL.  
TRANSPORT WINDS.....EAST AROUND 14 MPH.  
TRANSPORT WINDS M/S.EAST AROUND 6 METERS/SECOND.  
DISPERSION INDEX....103.  
LVORI...............1.  
STABILITY CLASS.....2.  
 
TIME (CDT) 5 PM  
SKY (%).........29  
WEATHER COV.....  
WEATHER TYPE....NONE  
TSTM COV........  
CHC OF PCPN (%).10  
LAL.............1  
TEMP............93  
RH..............43  
20 FT WIND DIR..E  
20 FT WIND SPD..6  
20 FT WIND GUST.10  
MIX HGT (FT)....6600  
MIX HGT (M).....2010  
TRANSP WIND DIR.E  
TRANSP WIND SPD.14  
TRANS WIND DIR..E  
TRANS SPD (M/S).6  
DISPERSION IDX..103  
LVORI...........1  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 72.  
MAX HUMIDITY........90 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS AROUND 5 MPH EARLY IN THE  
EVENING BECOMING LIGHT.  
MIXING HEIGHT.......300 FT AGL.  
MIXING HEIGHT (M)...91 METERS AGL.  
TRANSPORT WINDS.....NORTHEAST 7 TO 14 MPH.  
TRANSPORT WINDS M/S.NORTHEAST 3 TO 6 METERS/SECOND.  
DISPERSION INDEX....95 DECREASING TO 4.  
LVORI...............1 BECOMING 6.  
STABILITY CLASS.....4.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........30 40 40 35 31 27  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).10 10 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............89 80 77 75 74 73  
RH..............50 67 76 82 84 87  
20 FT WIND DIR..ENE ENE E NNE NNE NNE  
20 FT WIND SPD..5 3 2 1 2 3  
20 FT WIND GUST.7 2  
MIX HGT (FT)....6600 1000 1000 600 300 300  
MIX HGT (M).....2010 300 300 180 90 90  
TRANSP WIND DIR.E ENE ENE ENE ENE ENE  
TRANSP WIND SPD.14 14 14 10 9 8  
TRANS WIND DIR..E ENE ENE ENE ENE ENE  
TRANS SPD (M/S).6 6 6 4 4 4  
DISPERSION IDX..95 5 5 4 4 4  
LVORI...........1 3 3 4 5 6  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 93.  
MIN HUMIDITY........46 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 7 MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......INCREASING TO 6200 FT AGL.  
MIXING HEIGHT (M)...INCREASING TO 1890 METERS AGL.  
TRANSPORT WINDS.....EAST 5 TO 14 MPH.  
TRANSPORT WINDS M/S.EAST 2 TO 6 METERS/SECOND.  
DISPERSION INDEX....INCREASING TO 67.  
LVORI...............6 BECOMING 1.  
STABILITY CLASS.....2.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........26 28 33 44 50 52  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 10 10 10 10 10  
LAL.............1 1 1 1 1 1  
TEMP............72 76 85 89 92 93  
RH..............90 82 65 56 49 46  
20 FT WIND DIR..NE NE ENE ENE ENE ENE  
20 FT WIND SPD..3 4 6 6 6 6  
20 FT WIND GUST.  
MIX HGT (FT)....300 1300 3500 5000 5900 6200  
MIX HGT (M).....90 400 1070 1520 1800 1890  
TRANSP WIND DIR.ENE ENE E ENE ENE ENE  
TRANSP WIND SPD.5 7 14 14 12 10  
TRANS WIND DIR..ENE ENE E ENE ENE ENE  
TRANS SPD (M/S).2 3 6 6 5 4  
DISPERSION IDX..3 14 60 67 64 55  
LVORI...........6 4 1 1 1 1  
 

 
FORECASTER...22  
REQUESTED BY...CLIFF WILLIS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1915352.2/MOB  
.DELDT 09/14/19  
.FORMATTERVERSION 1.0.23  
.EMAIL CLIFTON.WILLIS@USDA.GOV  
 
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