Alert archive / Colorado / Red Flag Warnings in 2011
Red Flag Warning 8, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Mar 24, 2011, 2:38 AM MDT for 12 counties in Colorado. It took effect at Mar 24, 2011, 12:00 PM MDT. It was in force for 8 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
- Mar 24, 2011, 2:38 AM MDT (08:38 UTC)
- In effect from
- Mar 24, 2011, 12:00 PM MDT
- Expired
- Mar 24, 2011, 8:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Lincoln County, CO, Park County, CO
The radar
The Denver radar (KFTG), 36 km from the middle of the area, began a volume at 08:39 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 00:00Z, 8.6 hours before the alert went out and 145 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
- 3528 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
920 WWUS85 KBOU 240838 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 238 AM MDT THU MAR 24 2011 COZ216-241-246-247-242045- /O.UPG.KBOU.FW.A.0005.110324T1800Z-110325T0200Z/ /O.NEW.KBOU.FW.W.0008.110324T1800Z-110325T0200Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- 238 AM MDT THU MAR 24 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 216...241...246 AND 247... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 216...BAILEY...CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO SPRINGS...NORTHERN RAMPART RANGE...TARRYALL...WESTCREEK...FIRE WEATHER ZONE 241...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR...FIRE WEATHER ZONE 246...AGATE...HUGO...LIMON...MATHESON...FIRE WEATHER ZONE 247...FORDER...KARVAL...KUTCH...PUNKIN CENTER. * TIMING...WINDS WILL INCREASE EARLY THURSDAY WITH HUMIDITIES LOWERING THROUGH THE DAY. * WIND...SOUTH TO SOUTHWEST AT 15 TO 25 MPH WITH GUSTS TO 40 MPH WILL SHIFT TO THE WEST AROUND MID AFTERNOON. * HUMIDITY...WILL FALL TO 8-15% THIS AFTERNOON. * IMPACTS...STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE TO PRODUCE FAVORABLE CONDITIONS FOR THE RAPID GROWTH AND SPREAD OF WILDLAND FIRES. 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. && $$ COZ214-239-240-245-242045- /O.NEW.KBOU.FW.W.0008.110324T1800Z-110325T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- 238 AM MDT THU MAR 24 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 214...239...240 AND 245... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 214...ELEVEN MILE CANYON RESERVOIR...FAIRPLAY...GUFFEY...HARTSEL...LAKE GEORGE...SOUTH PARK...FIRE WEATHER ZONE 239...ARVADA...BOULDER...GOLDEN... LAKEWOOD...LONGMONT...FIRE WEATHER ZONE 240...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...FIRE WEATHER ZONE 245...BENNETT...BYERS...DEER TRAIL...LEADER. * TIMING...WINDS WILL INCREASE EARLY THURSDAY WITH HUMIDITIES LOWERING THROUGH THE DAY. * WIND...WEST WINDS OF 15 TO 25 MPH WITH GUSTS TO 40 MPH WILL DEVELOP BEHIND A COLD FRONT AROUND MID AFTERNOON. * HUMIDITY...WILL FALL 10 TO 15 THIS AFTERNOON% * IMPACTS...STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE TO PRODUCE FAVORABLE CONDITIONS FOR THE RAPID GROWTH AND SPREAD OF WILDLAND FIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
2 follow-up statements
145 WWUS85 KBOU 241907 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 107 PM MDT THU MAR 24 2011 COZ214-216-239>241-245>247-250200- /O.CON.KBOU.FW.W.0008.000000T0000Z-110325T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 107 PM MDT THU MAR 24 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 214... 216...239...240...241...245...246 AND 247... * AFFECTED AREA...FIRE WEATHER ZONE 214...ELEVEN MILE CANYON RESERVOIR...FAIRPLAY...GUFFEY...HARTSEL...LAKE GEORGE...SOUTH PARK...FIRE WEATHER ZONE 216...BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO SPRINGS...NORTHERN RAMPART RANGE...TARRYALL...WESTCREEK...FIRE WEATHER ZONE 239... ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...FIRE WEATHER ZONE 240...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...FIRE WEATHER ZONE 241...CASTLE ROCK...ELBERT... FONDIS...KIOWA...LARKSPUR...FIRE WEATHER ZONE 245...BENNETT... BYERS...DEER TRAIL...LEADER...FIRE WEATHER ZONE 246... AGATE... HUGO...LIMON...MATHESON...FIRE WEATHER ZONE 247... FORDER... KARVAL...KUTCH...PUNKIN CENTER. * TIMING...WINDS WILL CONTINUE TO INCREASE THIS AFTERNOON WITH LOWERING HUMIDITY THROUGH THE DAY. * WIND...SOUTHERLY WINDS OF 15 TO 30 MPH WILL BECOME WESTERLY BY LATE AFTERNOON WITH GUSTS TO 40 MPH BEHIND THE PASSAGE OF A COLD FRONT. * HUMIDITY...10 TO 15 PERCENT CAN BE EXPECTED. * IMPACTS...STRONG...GUSTY AND SHIFTING WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITY TO PRODUCE FAVORABLE CONDITIONS FOR THE RAPID GROWTH AND SPREAD OF WILDLAND FIRES. 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. && $$ LESZCYNSKI
319 WWUS85 KBOU 250201 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 801 PM MDT THU MAR 24 2011 COZ214-216-239>241-245>247-250315- /O.EXP.KBOU.FW.W.0008.000000T0000Z-110325T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- 801 PM MDT THU MAR 24 2011 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 214... 216... 239...240...241...245...246 AND 247... THE RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING. GUSTY WEST WINDS WILL CONTINUE FOR SEVERAL MORE HOURS THIS EVENING...THOUGH THEY WILL NOT BE AS STRONG AS EARLIER THIS EVENING. WEST WINDS AT 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL STILL BE EXPECTED UNTIL LATE EVENING. HUMIDITIES IN THE 20 TO 30 PERCENT RANGE WILL GRADUALLY INCREASE. $$ GIMMESTAD
Nearby
Red Flag Warnings in Colorado, 2011Every red flag warning in 2011
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.