941  
WWUS83 KBIS 111133  
RFWBIS  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BISMARCK ND  
633 AM CDT SUN MAY 11 2025  
 
...RED FLAG WARNING LATE THIS MORNING THROUGH THIS EVENING FOR  
MUCH OF CENTRAL NORTH DAKOTA INCLUDING THE JAMES RIVER VALLEY...  
 
.CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED LATE THIS MORNING  
THROUGH THIS EVENING ACROSS MUCH OF CENTRAL NORTH DAKOTA, INCLUDING  
THE JAMES RIVER VALLEY. EXPECT MINIMUM RELATIVE HUMIDITY VALUES  
AS LOW AS 13 PERCENT, WITH SOUTH-SOUTHWESTERLY WINDS SUSTAINED  
AROUND 30 MPH GUSTING TO 50 MPH. ANY FIRES THAT IGNITE COULD  
SPREAD RAPIDLY AND BECOME DIFFICULT TO CONTROL.  
 
NDZ005-012-013-021>023-025-034>037-042-045>048-050-051-112345-  
/O.CON.KBIS.FW.W.0008.250511T1600Z-250512T0300Z/  
ROLETTE-MCHENRY-PIERCE-MCLEAN-SHERIDAN-WELLS-FOSTER-MORTON-  
BURLEIGH-KIDDER-STUTSMAN-GRANT-SIOUX-EMMONS-LOGAN-LA MOURE-  
MCINTOSH-DICKEY-  
633 AM CDT SUN MAY 11 2025 /533 AM MDT SUN MAY 11 2025/  
 
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM CDT /10 AM MDT/  
THIS MORNING TO 10 PM CDT /9 PM MDT/ THIS EVENING FOR WIND AND  
LOW RELATIVE HUMIDITY FOR MUCH OF CENTRAL NORTH DAKOTA INCLUDING  
THE JAMES RIVER VALLEY...  
 
* WINDS...SOUTH-SOUTHWESTERLY AROUND 30 MPH WITH GUSTS TO 50 MPH.  
 
* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.  
 
* AFFECTED AREA...MUCH OF CENTRAL NORTH DAKOTA, INCLUDING THE  
JAMES RIVER VALLEY.  
 
* IMPACTS...ANY FIRES THAT IGNITE WILL SPREAD RAPIDLY AND BECOME  
DIFFICULT TO CONTROL OR SUPPRESS.  
 
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.  
 
 
 
 
 
ZH  
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