Alert archive / Colorado / Red Flag Warnings in 2012
Red Flag Warning 6, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Mar 31, 2012, 4:14 PM MDT for 13 counties in Colorado. It took effect at Apr 1, 2012, 11:00 AM 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 31, 2012, 4:14 PM MDT (22:14 UTC)
- In effect from
- Apr 1, 2012, 11:00 AM MDT
- Expired
- Apr 1, 2012, 7:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Clear Creek County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Lincoln County, CO, Park County, CO, Summit County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 42 km from the middle of the area, began a volume at 22:12 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, 10.2 hours before the alert went out and 154 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
- 2691 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
512 WWUS85 KBOU 312214 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 414 PM MDT SAT MAR 31 2012 COZ214-216-241-010615- /O.UPG.KBOU.FW.A.0004.120401T1700Z-120402T0100Z/ /O.NEW.KBOU.FW.W.0006.120401T1700Z-120402T0100Z/ /O.CON.KBOU.FW.W.0005.000000T0000Z-120401T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 414 PM MDT SAT MAR 31 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHERN FOOTHILLS...SOUTH PARK AND PALMER DIVIDE... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHERN FOOTHILLS...PALMER DIVIDE AND SOUTH PARK... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 11 AM TO 7 PM MDT SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 214...216 AND 241. * TIMING...GUSTY SOUTHWEST WINDS AND DRY CONDITIONS WILL CONTINUE THROUGH 8 PM MDT SATURDAY. WINDY AND DRY CONDITIONS WILL REDEVELOP AGAIN ON SUNDAY. * WINDS...SOUTHWEST OF 10 TO 20 MPH WITH GUSTS TO TO 30 MPH WILL OCCUR THROUGH THIS EVENING. SOUTHWEST WINDS OF 15 TO 25 MPH WILL REDEVELOP SUNDAY WITH SOME GUSTS GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...EXTREME FIRE BEHAVIOR AND FIRE SPREAD WILL BE POSSIBLE IF A FIRE SHOULD START. 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. && $$ COZ211-213-245>247-249-010615- /O.UPG.KBOU.FW.A.0004.120401T1700Z-120402T0100Z/ /O.NEW.KBOU.FW.W.0006.120401T1700Z-120402T0100Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 414 PM MDT SAT MAR 31 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR MOUNTAIN VALLEYS...SOUTH PARK SOUTHERN FOOTHILLS...PALMER DIVIDE AND PORTIONS OF THE NORTHEAST PLAINS... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 11 AM TO 7 PM MDT SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 211...213...245...246... 247 AND 249. * TIMING...LOW HUMIDITIES WILL ALREADY BE IN PLACE SUNDAY MORNING WITH WINDS INCREASING LATE MORNING...CONTINUING THOUGH THE AFTERNOON. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...EXTREME FIRE BEHAVIOR AND FIRE SPREAD WILL BE POSSIBLE IF A FIRE SHOULD START. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
4 follow-up statements
689 WWUS85 KBOU 010204 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 804 PM MDT SAT MAR 31 2012 COZ214-216-241-011015- /O.EXP.KBOU.FW.W.0005.000000T0000Z-120401T0200Z/ /O.CON.KBOU.FW.W.0006.120401T1700Z-120402T0100Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 804 PM MDT SAT MAR 31 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHERN FOOTHILLS...SOUTH PARK AND PALMER DIVIDE... ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHERN FOOTHILLS...SOUTH PARK AND PALMER DIVIDE... * AFFECTED AREA...FIRE WEATHER ZONES 214...216 AND 241. * TIMING...GUSTY SOUTHWEST WINDS AND LOW HUMIDITY WILL REDEVELOP BY 11 AM MDT SUNDAY AND CONTINUE THROUGH EARLY SUNDAY EVENING. * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...EXTREME FIRE BEHAVIOR AND FIRE SPREAD WILL BE POSSIBLE IF A FIRE SHOULD START. 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. && $$ COZ211-213-245>247-249-011015- /O.CON.KBOU.FW.W.0006.120401T1700Z-120402T0100Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 804 PM MDT SAT MAR 31 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR MOUNTAIN VALLEYS... SOUTH PARK...PALMER DIVIDE AND PORTIONS OF THE NORTHEAST PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 211...213...245...246... 247 AND 249. * TIMING...LOW HUMIDITIES WILL ALREADY BE IN PLACE SUNDAY MORNING WITH WINDS INCREASING BY LATE MORNING...CONTINUING THOUGH THE AFTERNOON. * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...EXTREME FIRE BEHAVIOR AND FIRE SPREAD WILL BE POSSIBLE IF A FIRE SHOULD START. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
896 WWUS85 KBOU 010949 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 349 AM MDT SUN APR 1 2012 COZ211-213-214-216-241-245>247-249-012200- /O.CON.KBOU.FW.W.0006.120401T1700Z-120402T0100Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- 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- 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- WASHINGTON COUNTY- 349 AM MDT SUN APR 1 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAIN VALLEYS...SOUTH PARK...PALMER DIVIDE AND PORTIONS OF THE NORTHEAST PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 211...213...214...216... 241...245...246...247 AND 249. * TIMING...LOW HUMIDITIES WILL ALREADY BE IN PLACE SUNDAY MORNING WITH WINDS INCREASING BY LATE MORNING...CONTINUING THOUGH THE AFTERNOON. * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...RAPID FIRE SPREAD WILL BE POSSIBLE IF A FIRE SHOULD START. 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. && $$
898 WWUS85 KBOU 011612 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1012 AM MDT SUN APR 1 2012 COZ211-213-214-216-241-245>247-249-020015- /O.CON.KBOU.FW.W.0006.120401T1700Z-120402T0100Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 1012 AM MDT SUN APR 1 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAIN VALLEYS... SOUTH PARK...PALMER DIVIDE AND PORTIONS OF THE NORTHEAST PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 211...213...214...216... 241...245...246...247 AND 249. * TIMING...HUMIDITIES WILL DROP BELOW 10 PERCENT AFTER NOON...SOUTH SOUTHWEST WINDS WILL GUST TO 30 MPH LATE THIS MORNING AND THIS AFTERNOON. * WINDS...SOUTH SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * IMPACTS...RAPID FIRE SPREAD WILL BE POSSIBLE IF A FIRE SHOULD START. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
214 WWUS85 KBOU 020102 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 702 PM MDT SUN APR 1 2012 COZ211-213-214-216-241-245>247-249-020215- /O.EXP.KBOU.FW.W.0006.000000T0000Z-120402T0100Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- 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- 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- WASHINGTON COUNTY- 702 PM MDT SUN APR 1 2012 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAIN VALLEYS...SOUTH PARK...PALMER DIVIDE AND PORTIONS OF THE NORTHEAST PLAINS... $$
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.