610  
FNUS74 KMOB 201233  
FWSMOB  
 
SPOT FORECAST FOR WSM L-3,EGLIN...EGLIN WSM  
NATIONAL WEATHER SERVICE MOBILE AL  
733 AM CDT SAT APR 20 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON APRIL 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL  
WEATHER SERVICE.  
   
..HIGH DISPERSION INDEX AROUND 79 EXPECTED OVER THE BURN AREA
 
 
   
DISCUSSION
 
A STRONG WEST TRANSPORT WINDS WILL BRING GOOD  
DISPERSIONS OVER THE BURN AREA TODAY. AT THE SURFACE, EXPECT  
WEST WINDS OF 10 TO 15 MPH, WITH GUSTS UP TO 25 MPH. AFTERNOON  
RELATIVE HUMIDITY LEVELS ARE EXPECTED TO DROP TO AROUND 27 PERCENT.  
 
FOG POTENTIAL AND OTHER REMARKS...FOG NOT EXPECTED THE NEXT  
TWO NIGHTS.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 72.  
MIN HUMIDITY........27 PERCENT.  
WIND (20 FT)........WEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH.  
MIXING HEIGHT.......INCREASING TO 7500 FT AGL.  
MIXING HEIGHT (M)...INCREASING TO 2286 METERS AGL.  
TRANSPORT WINDS.....WEST 22 TO 26 MPH.  
TRANSPORT WINDS M/S.WEST 10 TO 12 METERS/SECOND.  
DISPERSION INDEX....INCREASING TO 79.  
LVORI...............3 BECOMING 1.  
STABILITY CLASS.....3.  
 
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........40 24 9 7 4 2 2 1 1 1  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1  
TEMP............52 58 63 66 68 69 70 72 72 71  
RH..............69 53 43 37 32 30 29 27 27 29  
20 FT WIND DIR..W W W W W W W W W W  
20 FT WIND SPD..8 11 13 14 13 13 14 14 14 12  
20 FT WIND GUST.13 17 19 20 20 19 20 21 21 18  
MIX HGT (KFT)...1.5 2.7 3.9 5.1 6.3 7.5 7.3 7.2 7.1 5.8  
MIX HGT (KM)....0.5 0.8 1.2 1.6 1.9 2.3 2.2 2.2 2.2 1.8  
TRANSP WIND DIR.W W W W W W W W W W  
TRANSP WIND SPD.16 22 25 26 25 23 23 23 22 23  
TRANS WIND DIR..W W W W W W W W W W  
TRANS SPD (M/S).7 10 11 12 11 10 10 10 10 10  
DISPERSION IDX..29 52 66 76 79 79 77 76 75 67  
LVORI...........3 1 1 1 1 1 1 1 1 1  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 42.  
MAX HUMIDITY........93 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 12 MPH EARLY IN THE  
EVENING BECOMING LIGHT.  
MIXING HEIGHT.......DECREASING TO 200 FT AGL.  
MIXING HEIGHT (M)...DECREASING TO 61 METERS AGL.  
TRANSPORT WINDS.....NORTHWEST 14 TO 23 MPH DECREASING TO 6 TO 13  
MPH LATE IN THE EVENING.  
TRANSPORT WINDS M/S.NORTHWEST 6 TO 10 METERS/SECOND DECREASING TO 3  
TO 6 METERS/SECOND LATE IN THE EVENING.  
DISPERSION INDEX....DECREASING TO 3.  
LVORI...............1 BECOMING 6.  
STABILITY CLASS.....4.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........0 0 0 0 0 0 0 0 0 0 0 0  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............68 64 59 55 52 50 48 46 44 44 42 42  
RH..............32 38 47 55 63 68 74 79 86 86 93 89  
20 FT WIND DIR..W NW NW W W W W W W NW NW NW  
20 FT WIND SPD..10 7 6 5 4 3 3 3 3 2 2 2  
20 FT WIND GUST.14 11 8 6 6 5 5 5 4  
MIX HGT (KFT)...4.6 3.3 2.1 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.2 0.2  
MIX HGT (KM)....1.4 1.0 0.6 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
TRANSP WIND SPD.23 23 20 16 14 13 13 12 9 6 6 6  
TRANS WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW  
TRANS SPD (M/S).10 10 9 7 6 6 6 5 4 3 3 3  
DISPERSION IDX..55 40 25 13 7 6 6 5 4 3 3 3  
LVORI...........1 2 2 3 3 3 3 4 4 5 6 6  
   
SUNDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 78.  
MIN HUMIDITY........26 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST TO SOUTHWEST 5 TO 6  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......INCREASING TO 5400 FT AGL.  
MIXING HEIGHT (M)...INCREASING TO 1646 METERS AGL.  
TRANSPORT WINDS.....NORTHWEST 6 TO 10 MPH.  
TRANSPORT WINDS M/S.NORTHWEST 3 TO 4 METERS/SECOND.  
DISPERSION INDEX....INCREASING TO 54.  
LVORI...............6 BECOMING 1.  
STABILITY CLASS.....2.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........0 0 0 0 0 0 0 0 0 0 0 0  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............42 43 50 60 67 70 74 76 78 78 78 76  
RH..............89 82 66 47 39 33 29 26 26 26 27 30  
20 FT WIND DIR..NW NW NW W W W W W W W SW SW  
20 FT WIND SPD..2 2 2 3 3 4 4 5 6 6 6 6  
20 FT WIND GUST. 4 5 5 6 7 7 8 8 8  
MIX HGT (KFT)...0.2 0.2 1.0 1.9 2.8 3.6 4.5 5.4 5.2 5.1 5.0 4.1  
MIX HGT (KM)....0.1 0.1 0.3 0.6 0.9 1.1 1.4 1.6 1.6 1.6 1.5 1.2  
TRANSP WIND DIR.NW NW NW N N N N NW NW NW W W  
TRANSP WIND SPD.6 6 6 7 7 8 8 9 10 10 10 10  
TRANS WIND DIR..NW NW NW N N N N NW NW NW W W  
TRANS SPD (M/S).3 3 3 3 3 4 4 4 4 4 4 4  
DISPERSION IDX..3 6 8 16 24 33 42 52 52 54 53 48  
LVORI...........6 5 3 2 2 1 1 1 1 1 1 1  
 

 
FORECASTER...22  
REQUESTED BY...JERRY COON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1906648.0/MOB  
.DELDT 04/20/19  
.FORMATTERVERSION 1.0.23  
.EMAIL JERRY.COON@US.AF.MIL  
 
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