919  
FNUS74 KMOB 171112  
FWSMOB  
 
SPOT FORECAST FOR EGLIN H-32...E.N.R.  
NATIONAL WEATHER SERVICE MOBILE AL  
612 AM CDT MON SEP 17 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON SEPTEMBER 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
ISOLATED SHOWERS AND STORMS ARE EXPECTED EACH DAY  
THROUGH TUESDAY. HOT CONDITIONS CONTINUE WITH HEAT INDEX VALUES  
TODAY AND TOMORROW AROUND 105. DISPERSION VALUES WILL BE FAIR  
THROUGH TUESDAY AND AFTERNOON RELATIVE HUMIDITIES REMAIN WELL ABOVE  
CRITICAL LEVELS.  
 
FOG POTENTIAL AND OTHER REMARKS...PATCHY LATE NIGHT AND EARLY  
MORNING FOG IS POSSIBLE WITH VISIBILITIES GENERALLY AROUND 3 TO 5  
MILES.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE LATE MORNING  
AND AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
LAL.................NO TSTMS UNTIL 1000, THEN 1-8 STRIKES.  
MAX TEMPERATURE.....AROUND 92.  
MIN HUMIDITY........62 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH IN  
THE LATE MORNING AND AFTERNOON. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN  
THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......2800-4500 FT AGL INCREASING TO 4400-4800 FT AGL  
IN THE AFTERNOON.  
MIXING HEIGHT (M)...853-1372 METERS AGL INCREASING TO 1341-1463  
METERS AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 6 TO 8 MPH.  
TRANSPORT WINDS M/S.SOUTHWEST 3 TO 4 METERS/SECOND.  
DISPERSION INDEX....17 INCREASING TO 28 LATE IN THE MORNING.  
LVORI...............3.  
STABILITY CLASS.....2.  
 
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........34 36 44 48 51 49 45 42 39  
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH SCH  
WEATHER TYPE.... RW RW RW RW RW RW RW RW  
TSTM COV........ SCH SCH SCH SCH SCH SCH SCH SCH  
CHC OF PCPN (%).10 20 20 20 20 20 20 20 20  
LAL.............1 2 2 2 2 2 2 2 2  
TEMP............86 88 91 92 92 91 91 91 90  
RH..............75 72 66 62 62 64 62 62 64  
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW  
20 FT WIND SPD..4 6 6 7 7 7 6 6 5  
20 FT WIND GUST.6 7 10 10 10 10 10 7 6  
MIX HGT (KFT)...2.8 4.1 4.3 4.5 4.8 4.6 4.5 4.4 4.4  
MIX HGT (KM)....0.9 1.2 1.3 1.4 1.5 1.4 1.4 1.3 1.3  
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW  
TRANSP WIND SPD.6 7 8 8 8 8 8 8 8  
TRANS WIND DIR..SW SW SW SW SW SW SW SW SW  
TRANS SPD (M/S).3 3 4 4 4 4 4 4 4  
DISPERSION IDX..14 20 24 28 27 30 32 31 31  
LVORI...........4 3 3 2 2 2 2 2 3  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
CHANCE OF PCPN......20 PERCENT.  
LAL.................1-8 STRIKES.  
MIN TEMPERATURE.....AROUND 75.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS.  
MIXING HEIGHT.......4400 FT AGL DECREASING TO 700-1200 FT AGL.  
MIXING HEIGHT (M)...1341 METERS AGL DECREASING TO 213-366 METERS  
AGL.  
TRANSPORT WINDS.....WEST 3 TO 9 MPH.  
TRANSPORT WINDS M/S.WEST 1 TO 4 METERS/SECOND.  
DISPERSION INDEX....32 DECREASING TO 3.  
LVORI...............6.  
STABILITY CLASS.....4.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........37 34 37 40 43 43 44 44 45 46 47 50  
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH  
CHC OF PCPN (%).20 20 20 20 20 20 20 20 20 20 20 20  
LAL.............2 2 2 2 2 2 2 2 2 2 2 2  
TEMP............87 85 82 81 79 79 79 77 77 76 75 76  
RH..............72 77 88 88 94 94 91 97 97 97 100 97  
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW W W W  
20 FT WIND SPD..4 3 3 3 3 3 3 3 3 2 2 1  
20 FT WIND GUST.6 4 4 4 4 4 4 4 4  
MIX HGT (KFT)...4.4 1.2 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.7 0.7 0.7  
MIX HGT (KM)....1.3 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2  
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW W W  
TRANSP WIND SPD.9 9 9 8 7 7 6 6 6 5 5 3  
TRANS WIND DIR..SW SW SW SW SW SW SW SW SW SW W W  
TRANS SPD (M/S).4 4 4 4 3 3 3 3 3 2 2 1  
DISPERSION IDX..32 4 4 4 4 4 4 4 3 3 3 2  
LVORI...........3 4 5 6 6 7 7 7 8 7 8 8  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING,  
THEN CHANCE OF SHOWERS AND THUNDERSTORMS.  
CHANCE OF PCPN......40 PERCENT.  
LAL.................1-8 STRIKES UNTIL 0700, THEN 9-15 STRIKES.  
MAX TEMPERATURE.....AROUND 91.  
MIN HUMIDITY........58 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH LATE  
IN THE MORNING, THEN BECOMING LIGHT LATE IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS.  
MIXING HEIGHT.......600-2300 FT AGL INCREASING TO 3200-4400 FT AGL  
IN THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT (M)...183-701 METERS AGL INCREASING TO 975-1341  
METERS AGL IN THE LATE MORNING AND AFTERNOON.  
TRANSPORT WINDS.....WEST 2 TO 7 MPH.  
TRANSPORT WINDS M/S.WEST 1 TO 3 METERS/SECOND.  
DISPERSION INDEX....7 INCREASING TO 20 IN THE AFTERNOON.  
LVORI...............5.  
STABILITY CLASS.....2.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........52 55 54 53 52 51 50 49 48 46 45 44  
WEATHER COV.....SCH CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........SCH CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
CHC OF PCPN (%).20 30 30 30 30 30 30 40 40 40 40 40  
LAL.............2 3 3 3 3 3 3 3 3 3 3 3  
TEMP............75 75 77 82 86 90 91 90 89 89 89 87  
RH..............97 97 94 82 72 64 58 62 64 64 64 68  
20 FT WIND DIR..NW NW NW W W SW SW SW SW SW SW SW  
20 FT WIND SPD..1 1 2 3 4 5 5 6 6 6 5 4  
20 FT WIND GUST. 4 6 6 6 7 7 7 6 6  
MIX HGT (KFT)...0.7 0.6 1.5 2.3 3.2 3.6 4.0 4.4 4.2 4.0 3.8 3.8  
MIX HGT (KM)....0.2 0.2 0.5 0.7 1.0 1.1 1.2 1.3 1.3 1.2 1.2 1.2  
TRANSP WIND DIR.W W NW NW NW W SW SW SW W W W  
TRANSP WIND SPD.2 2 2 3 5 6 6 7 7 7 7 7  
TRANS WIND DIR..W W NW NW NW W SW SW SW W W W  
TRANS SPD (M/S).1 1 1 1 2 3 3 3 3 3 3 3  
DISPERSION IDX..2 5 6 7 9 11 15 19 22 24 23 23  
LVORI...........8 8 6 4 4 3 3 2 2 2 3 3  
 

 
FORECASTER...29  
REQUESTED BY...KEITH HAWK  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1815836.0/MOB  
.DELDT 09/17/18  
.EMAIL KEITH.HAWK.CTR@US.AF.MIL  
 
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