509  
FNUS74 KMOB 261242  
FWSMOB  
 
SPOT FORECAST FOR CHICK CPT 409...USFS  
NATIONAL WEATHER SERVICE MOBILE AL  
742 AM CDT FRI MAY 26 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON MAY 26.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
MOISTURE LEVELS WILL INCREASE THROUGH SATURDAY,  
HOWEVER MOST AREAS WILL REMAIN DRY. RELATIVE HUMIDITY LEVELS WILL  
REMAIN ABOVE CRITICAL LEVELS THROUGH THE PERIOD.  
 
FOG POTENTIAL AND OTHER REMARKS...PATCHY LATE NIGHT AND EARLY  
MORNING FOG CAN BE EXPECTED.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 88.  
MIN HUMIDITY........39 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......1200-2900 FT AGL INCREASING TO 3600-4900 FT AGL  
LATE IN THE MORNING.  
MIXING HEIGHT (M)...366-884 METERS AGL INCREASING TO 1097-1494  
METERS AGL LATE IN THE MORNING.  
TRANSPORT WINDS.....SOUTH 8 TO 17 MPH.  
TRANSPORT WINDS M/S.SOUTH 4 TO 8 METERS/SECOND.  
DISPERSION INDEX....11 INCREASING TO 64.  
LVORI...............3.  
STABILITY CLASS.....2.  
 
TIME (CDT) 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........2 3 3 3 3  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0  
LAL.............1 1 1 1 1  
TEMP............67 77 83 87 88  
RH..............75 55 46 41 41  
20 FT WIND DIR..S S S S S  
20 FT WIND SPD..5 8 9 10 10  
20 FT WIND GUST. 15 15 15 15  
MIX HGT (FT)....1200 2900 4300 4900 4900  
MIX HGT (M).....370 880 1310 1490 1490  
TRANSP WIND DIR.S S S S S  
TRANSP WIND SPD.8 15 16 16 16  
TRANS WIND DIR..S S S S S  
TRANS SPD (M/S).4 7 7 7 7  
DISPERSION IDX..11 49 62 65 66  
LVORI...........4 1 1 1 1  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 67.  
MAX HUMIDITY........93 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH UNTIL EARLY MORNING  
BECOMING LIGHT.  
MIXING HEIGHT.......4900 FT AGL DECREASING TO 700-2300 FT AGL.  
MIXING HEIGHT (M)...1494 METERS AGL DECREASING TO 213-701 METERS  
AGL.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 15 MPH.  
TRANSPORT WINDS M/S.SOUTHWEST 4 TO 7 METERS/SECOND.  
DISPERSION INDEX....56 DECREASING TO 6.  
LVORI...............4.  
STABILITY CLASS.....4.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........2 5 17 29 36 51  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............84 78 73 70 70 70  
RH..............45 57 72 80 85 88  
20 FT WIND DIR..S S S S S S  
20 FT WIND SPD..9 9 8 6 5 4  
20 FT WIND GUST.15 15 10 10 5  
MIX HGT (FT)....4900 900 900 800 900 1100  
MIX HGT (M).....1490 270 270 240 270 340  
TRANSP WIND DIR.S S S S S SW  
TRANSP WIND SPD.15 13 12 10 9 10  
TRANS WIND DIR..S S S S S SW  
TRANS SPD (M/S).7 6 5 4 4 4  
DISPERSION IDX..56 7 6 4 4 7  
LVORI...........1 3 3 4 5 5  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 89.  
MIN HUMIDITY........57 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......1100-2900 FT AGL INCREASING TO 3300-4000 FT AGL  
IN THE AFTERNOON.  
MIXING HEIGHT (M)...335-884 METERS AGL INCREASING TO 1006-1219  
METERS AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 7 TO 13 MPH.  
TRANSPORT WINDS M/S.SOUTHWEST 3 TO 6 METERS/SECOND.  
DISPERSION INDEX....9 INCREASING TO 43.  
LVORI...............4.  
STABILITY CLASS.....3.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........66 69 65 60 57 48  
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............69 72 77 81 85 87  
RH..............93 90 83 73 64 57  
20 FT WIND DIR..S S S S S S  
20 FT WIND SPD..4 4 6 7 8 8  
20 FT WIND GUST.5 5 10 15 15 15  
MIX HGT (FT)....1100 1500 2200 2900 3500 4000  
MIX HGT (M).....340 460 670 880 1070 1220  
TRANSP WIND DIR.SW SW SW SW SW SW  
TRANSP WIND SPD.8 8 10 12 12 13  
TRANS WIND DIR..SW SW SW SW SW SW  
TRANS SPD (M/S).4 4 4 5 5 6  
DISPERSION IDX..5 12 22 26 38 45  
LVORI...........7 5 4 3 1 1  
 

 
FORECASTER...13  
REQUESTED BY...RYAN BARNETT  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1710120.0/MOB  
.EMAIL RBARNETT@FS.FED.US  
 
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