WWUS85 KBOU 060226 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 826 PM MDT Sat Sep 5 2020 ...EXTENDED PERIOD OF HIGH FIRE DANGER... .Record or near record heat, very dry conditions, and increasing winds will bring critical fire danger to much of the northern mountains and high valleys of northern Colorado Sunday and Monday. Downslope winds will increase the fire danger in the northern Front Range foothills later tonight, then spread across the plains on Sunday. Humidities are expected to be a little higher at lower elevations on Monday, but conditions could still be near Red Flag criteria. COZ215-061200- /O.EXT.KBOU.FW.W.0024.200906T0600Z-200907T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- 826 PM MDT Sat Sep 5 2020 ...RED FLAG WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS AND MUCH OF THE NORTHEAST PLAINS, FIRE WEATHER ZONES 215, 238, AND 242 THROUGH 251... * Affected Area...Fire Weather Zone 215. * Winds...Northwest 10 to 20 mph with gusts up to 35 mph. * Timing...Midnight Saturday night until early Sunday evening. * Relative Humidity...As low as 9 percent. * Impacts...Rapid fire growth will be possible. Avoid any activity outdoors that may produce a spark. 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. && $$ COZ238-242>251-061200- /O.CON.KBOU.FW.W.0024.200906T1600Z-200907T0200Z/ Larimer County Below 6000 Feet/Northwest Weld County- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Logan County-Washington County-Sedgwick County-Phillips County- 826 PM MDT Sat Sep 5 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS AND MUCH OF THE NORTHEAST PLAINS, FIRE WEATHER ZONES 215, 238, AND 242 THROUGH 251... * Affected Area...Fire Weather Zones 238...242...243...244... 245...246...247...248...249...250 and 251. * Winds...North 10 to 20 mph with gusts up to 30 mph. * Timing...Late Sunday morning until early Sunday evening. * Relative Humidity...As low as 8 percent. * Impacts...Rapid fire growth will be possible. Avoid any activity outdoors that may produce a spark. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ211>213-217-218-061200- /O.CON.KBOU.FW.W.0024.200906T1600Z-200908T0200Z/ 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- West Jackson and West Grand Counties Above 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- 826 PM MDT Sat Sep 5 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO 8 PM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS AND HIGH MOUNTAIN VALLEYS... * Affected Area...Fire Weather Zones 211...212...213...217 and 218. * Winds...West 10 to 20 mph with gusts up to 35 mph. * Timing...Sunday noon through early evening Monday. * Relative Humidity...As low as 9 percent. * Impacts...Rapid growth of existing fires and new fire starts will be possible due to the gusty winds and very low humidity. 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. && $$ Gimmestad