697  
WWUS85 KBOU 222223  
RFWBOU  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
423 PM MDT WED MAR 22 2017  
 
...RED FLAG WARNING FOR THE SOUTHERN FOOTHILLS, PALMER DIVIDE AND  
ADJACENT PLAINS, INCLUDING DENVER AND AREAS EAST AND SOUTHEAST  
THURSDAY AFTERNOON...  
 
CONDITIONS WILL BE VERY WARM AND DRY THROUGH MOST OF THE  
AFTERNOON THURSDAY, WITH GUSTY SOUTHERLY WINDS EXPECTED. COLDER  
TEMPERATURES COUPLED WITH RAIN AND SNOW WILL SWEEP ACROSS ACROSS  
MUCH OF THE REGION THURSDAY NIGHT AND FRIDAY.  
 
COZ216-239>241-245>247-249-230630-  
/O.CON.KBOU.FW.W.0018.170323T1800Z-170324T0000Z/  
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR  
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-  
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD  
COUNTY-  
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND  
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-  
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-  
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-  
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN  
COUNTY-  
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-  
WASHINGTON COUNTY-  
423 PM MDT WED MAR 22 2017  
 
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 6 PM MDT  
THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE  
AND ADJACENT PLAINS INCLUDING DENVER AND AREAS EAST AND  
SOUTHEAST...  
 
* AFFECTED AREA...FIRE WEATHER ZONES 216...239...240...241...  
245...246...247 AND 249.  
 
* TIMING...GUSTY SOUTHERLY WINDS WILL DEVELOP BY MIDDAY THURSDAY  
THE AFTERNOON WITH THE RELATIVE HUMIDITIES DROPPING TO AROUND  
10 PERCENT BY EARLY AFTERNOON.  
 
* WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS UP TO 40 MPH.  
 
* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.  
 
* IMPACTS...CONDITIONS WILL BE FAVORABLE FOR RAPID IGNITION OF  
DRY VEGETATION, FIRE GROWTH AND SPREAD. ANY OUTDOOR BURNING IS  
STRONGLY DISCOURAGED, AND IN SOME AREAS, ILLEGAL. CHECK WITH  
LOCAL LAW ENFORCEMENT.  
 
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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