WWUS85 KBOU 201733

RFWBOU



URGENT - FIRE WEATHER MESSAGE

National Weather Service Denver/Boulder CO

1133 AM MDT Sat Jun 20 2026



COZ211>214-217-218-210145-

/O.CON.KBOU.FW.W.0045.000000T0000Z-260621T0300Z/

Jackson County Below 9000 Feet-

South and Southeast Grand/West Central and Southwest Boulder/

Gilpin/Clear Creek/Summit/North and West Park Counties Above

9000 Feet-Grand and Summit Counties Below 9000 Feet-

Central and Southeast Park County-

West Jackson and West Grand Counties Above 9000 Feet-

South and East Jackson/Larimer/North and Northeast Grand/

Northwest Boulder Counties Above 9000 Feet-

1133 AM MDT Sat Jun 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING

FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS AND MOUNTAIN

VALLEYS...



* AFFECTED AREA...Fire Weather Zones 211, 212, 213, 214, 217 and 

  218.



* TIMING...Until 9 PM MDT this evening.



* WINDS...West 15 to 25 mph with gusts up to 45 mph.



* RELATIVE HUMIDITY...As low as 9 percent.



* IMPACTS...Conditions will be favorable for rapid fire spread. 

  Avoid outdoor burning and any activity that may produce a 

  spark and start a wildfire.



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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