528  
FNUS72 KTBW 111136  
FWSTBW  
 
SPOT FORECAST FOR CHINSEGUT WEA, UNIT 13...FWC  
NATIONAL WEATHER SERVICE RUSKIN FL  
736 AM EDT FRI MAY 11 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON MAY 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (813) 645-2323 IF YOU HAVE QUESTIONS OR  
CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
HIGH PRESSURE WILL SUPPORT WARM DRY WEATHER  
ACROSS THE BURN AREA TODAY UNDER PARTLY CLOUDY SKIES. HUMIDITY  
VALUES WILL FALL TO NEAR OR SLIGHTLY BELOW 35 PERCENT DURING  
THE AFTERNOON AND WITH HIGH ERC'S ELEVATED FIRE WEATHER DANGERS  
WILL EXIST, HOWEVER WITH LIGHT WINDS NO RED FLAG CONDITIONS ARE  
EXPECTED. TONIGHT INTO SATURDAY DRY WEATHER WILL CONTINUE BUT  
WITH A SLOW INCREASE IN MOISTURE EXPECTED. THE INCREASE IN  
MOISTURE COUPLED WITH LIGHT WINDS MAY SUPPORT SOME PATCHY FOG  
DEVELOPMENT OVER THE BURN SITE LATE TONIGHT THROUGH EARLY SATURDAY  
MORNING, HOWEVER WIDESPREAD VISIBILITY RESTRICTIONS ARE NOT  
EXPECTED. HIGH MIXING HEIGHTS ALONG WITH A SLOW INCREASE IN  
TRANSPORT WINDS WILL LEAD TO HIGH DISPERSION INDICES OVER THE  
AREA ON SATURDAY.  
 
   
REST OF TODAY
 
 
TIME (EDT) 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........15 9 11 24 24  
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............68 79 87 91 91  
RH..............86 57 43 36 35  
20 FT WIND......S 1 NW 2 N 5 NE 5 N 5  
20 FT WIND GUST.  
MIX HGT (FT)....300 2000 4100 6500 6500  
TRANSPORT WIND..SW 1 NW 5 N 7 NE 7 E 6  
DISPERSION IDX..1 13 32 49 46  
LVORI...........6 2 1 1 1  
   
TONIGHT
 
 
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........18 26 52 57 44 49  
WEATHER COV..... PATCHY  
WEATHER TYPE....NONE NONE NONE NONE NONE FOG  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............88 81 76 73 70 68  
RH..............40 54 64 72 77 81  
20 FT WIND......NW 5 NW 3 NE 2 SE 2 SE 2 SE 2  
20 FT WIND GUST.  
MIX HGT (FT)....4400 300 300 300 300 300  
TRANSPORT WIND..NE 5 NW 3 E 2 SE 2 SE 2 SE 1  
DISPERSION IDX..26 2 0 1 1 1  
LVORI...........2 2 3 4 4 6  
   
SATURDAY
 
 
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........48 42 44 47 48 46  
WEATHER COV.....PATCHY  
WEATHER TYPE....FOG NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............68 69 79 86 89 88  
RH..............84 84 57 45 39 39  
20 FT WIND......E 1 E 2 E 3 E 6 E 7 E 7  
20 FT WIND GUST.  
MIX HGT (FT)....300 300 1700 3200 5000 5400  
TRANSPORT WIND..E 1 E 1 E 6 E 9 E 12 E 12  
DISPERSION IDX..0 2 14 37 63 73  
LVORI...........6 5 2 1 1 1  
 

 
FORECASTER...MCMICHAEL  
REQUESTED BY...MATTHEW KOENIG  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1809684.0/TBW  
.DELDT 05/11/18  
.EMAIL MATTHEW.KOENIG@MYFWC.COM  
 
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