072  
WWUS82 KTBW 202334  
RFWTBW  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL  
734 PM EDT THU APR 20 2017  
 
...RED FLAG WARNING IS IN EFFECT FOR FRIDAY AFTERNOON DUE TO LONG  
DURATIONS OF LOW HUMIDITY...  
 
.HUMIDITY CONTINUES TO DROP ACROSS THE AREA WITH 4 TO 5 HOURS OF  
CRITICAL RELATIVE HUMIDITY VALUES EXPECTED FRIDAY AFTERNOON.  
COMBINED WITH HIGH ERC VALUES, THIS HAS TRIGGERED A RED FLAG  
WARNING FOR PARTS OF WEST CENTRAL FLORIDA.  
 
FLZ052-248-255-220000-  
/O.NEW.KTBW.FW.W.0010.170421T1700Z-170422T0000Z/  
POLK-INLAND HERNANDO-INLAND MANATEE-  
734 PM EDT THU APR 20 2017  
 
...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM EDT FRIDAY FOR  
LONG DURATIONS OF LOW HUMIDITY...  
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS  
ISSUED A RED FLAG WARNING, WHICH IS IN EFFECT FROM 1 PM TO 8 PM  
EDT FRIDAY.  
 
* AFFECTED AREA...POLK...INLAND HERNANDO...INLAND MANATEE.  
 
* HUMIDITY...RELATIVE HUMIDITY OF 25 TO 35 PERCENT  
 
* ERC...37 TO 40  
 
* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.  
OUTDOOR BURNING IS NOT RECOMMENDED.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS  
ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF  
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
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