Alert archive / Colorado / Red Flag Warnings in 2012
Red Flag Warning 17, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Jun 13, 2012, 2:57 PM MDT for 8 counties in Colorado. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 13, 2012, 2:57 PM MDT (20:57 UTC)
- Expired
- Jun 13, 2012, 9:00 PM MDT
- In force
- 6 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Clear Creek County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Larimer County, CO, Park County, CO, Summit County, CO
The radar
The Denver radar (KFTG), 108 km from the middle of the area, began a volume at 21:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.0 hours before the alert went out and 218 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3903 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
771 WWUS85 KBOU 132057 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 257 PM MDT WED JUN 13 2012 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED OVER THE NORTHERN AND CENTRAL MOUNTAINS...NORTHERN HIGH VALLEYS AND NORTHERN FOOTHILLS...INCLUDING THE HIGH PARK FIRE... .GUSTY WINDS AHEAD OF AN APPROACHING COLD FRONT ARE COMBINING WITH ALREADY LOW HUMIDITY READINGS TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS. CONDITIONS ARE EXPECTED TO REMAIN UNTIL THE COLD FRONT PASSAGE LATER THIS EVENING. COZ211>213-215-217-218-140300- /O.NEW.KBOU.FW.W.0017.120613T2057Z-120614T0300Z/ 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- LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 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- 257 PM MDT WED JUN 13 2012 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN AND CENTRAL MOUNTAINS...NORTH AND MIDDLE PARKS AND THE NORTHERN FRONT RANGE FOOTHILLS... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 211...212...213...215... 217 AND 218. * TIMING...CONTINUE THROUGH 9 PM TONIGHT. * WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...6 TO 10 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL SUPPORT EXTREME FIRE BEHAVIOR AND RAPID SPREAD OF ANY CURRENT OR NEW FIRE STARTS PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
1 follow-up statement
117 WWUS85 KBOU 140309 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 909 PM MDT WED JUN 13 2012 COZ211>213-215-217-218-140415- /O.EXP.KBOU.FW.W.0017.000000T0000Z-120614T0300Z/ JACKSON COUNTY BELOW 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- 909 PM MDT WED JUN 13 2012 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTH CENTRAL MOUNTAINS OF COLORADO...FIRE ZONES 211...212...213...215...217...AND 218... HUMIDITIES REMAIN LOW THIS EVENING...GENERALLY BETWEEN 8 AND 15 PERCENT...BUT WINDS HAVE DIMINISHED TO LESS THAN 20 MPH. HUMIDITIES WILL REMAIN LOW UNTIL A COLD FRONT MOVES THROUGH EARLY THURSDAY MORNING...THEN RISE AS WINDS SHIFT TO A MORE NORTHERLY DIRECTION. $$ GIMMESTAD
Nearby
Red Flag Warnings in Colorado, 2012Every red flag warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.