Alert archive / Colorado / Red Flag Warnings in 2012
Red Flag Warning 16, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Jun 8, 2012, 3:03 PM MDT for 11 counties in Colorado. It took effect at Jun 9, 2012, 9:45 AM MDT. It was in force for 36 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 8, 2012, 3:03 PM MDT (21:03 UTC)
- In effect from
- Jun 9, 2012, 9:45 AM MDT
- Expired
- Jun 10, 2012, 10:00 PM MDT
- In force
- 36 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 76 km from the middle of the area, began a volume at 21:03 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, 9.1 hours before the alert went out and 187 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
- 740 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1067 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- -71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.6
The text
As transmitted, in the capitals the NWS used until 2016.
541 WWUS85 KBOU 082103 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 303 PM MDT FRI JUN 8 2012 ...LOW HUMIDITY AND INCREASING WINDS EXPECTED SATURDAY... .AN UPPER TROUGH WILL BE APPROACHING COLORADO FROM THE PACIFIC NORTHWEST...INCREASING SOUTHWEST WINDS ACROSS THE STATE...ESPECIALLY OVER THE MOUNTAINS AND FAR EASTERN PLAINS. TEMPERATURES WILL ALSO BE WARMER THAN NORMAL WITH LOW AFTERNOON RELATIVE HUMIDITIES. THE NORTH-CENTRAL MOUNTAINS AND FAR EASTERN COLORADO PLAINS HAVE NOT RECEIVED MUCH RECENT RAINFALL...SO VEGETATION WILL BE RELATIVELY DRY. THE COMBINATION OF SUNNY SKIES...LOW HUMIDITIES AND GUSTY WINDS WILL CAUSE CRITICAL FIRE WEATHER CONDITIONS SATURDAY. COZ211>214-217-218-090515- /O.UPG.KBOU.FW.A.0008.120609T1800Z-120610T0600Z/ /O.NEW.KBOU.FW.W.0016.120609T1600Z-120610T0300Z/ 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- 303 PM MDT FRI JUN 8 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTH CENTRAL MOUNTAINS AND HIGH MOUNTAIN VALLEY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM TO 9 PM MDT SATURDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 211...212...213...214... 217 AND 218. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * TIMING...WINDS WILL BE INCREASING BY MID MORNING WITH HUMIDITY LEVELS ALREADY LOW FROM POOR RECOVERIES OVERNIGHT. CONDITIONS WILL IMPROVE AFTER SUNSET SATURDAY. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. 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. && $$ COZ249-090515- /O.NEW.KBOU.FW.W.0016.120609T1600Z-120610T0300Z/ WASHINGTON COUNTY- 303 PM MDT FRI JUN 8 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM TO 9 PM MDT SATURDAY. * AFFECTED AREA...FIRE WEATHER ZONE 249. * TIMING...WINDS WILL BEGIN INCREASING MID MORNING WITH HUMIDITIES FALLING RAPIDLY SOON AFTER. CONDITIONS WILL IMPROVE AFTER SUNSET. * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
8 follow-up statements
351 WWUS85 KBOU 090503 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1103 PM MDT FRI JUN 8 2012 ...LOW HUMIDITY AND INCREASING WINDS EXPECTED SATURDAY... .AN UPPER TROUGH WILL BE APPROACHING COLORADO FROM THE PACIFIC NORTHWEST...INCREASING SOUTHWEST WINDS ACROSS THE STATE... ESPECIALLY OVER THE MOUNTAINS AND FAR EASTERN PLAINS. TEMPERATURES WILL ALSO BE WARMER THAN NORMAL WITH LOW AFTERNOON RELATIVE HUMIDITIES. THE NORTH-CENTRAL MOUNTAINS AND FAR EASTERN COLORADO PLAINS HAVE NOT RECEIVED MUCH RECENT RAINFALL...SO VEGETATION WILL BE RELATIVELY DRY. THE COMBINATION OF SUNNY SKIES...LOW HUMIDITIES AND GUSTY WINDS WILL CAUSE CRITICAL FIRE WEATHER CONDITIONS SATURDAY. COZ211>214-217-218-249-091800- /O.CON.KBOU.FW.W.0016.120609T1600Z-120610T0300Z/ 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-WASHINGTON COUNTY- 1103 PM MDT FRI JUN 8 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY... * AFFECTED AREA...FIRE WEATHER ZONES 211...212...213...214... 217...218 AND 249. * TIMING...WINDS WILL BEGIN INCREASING MID MORNING WITH HUMIDITIES FALLING RAPIDLY SOON AFTER. CONDITIONS WILL IMPROVE AFTER SUNSET. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. 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. && $$
843 WWUS85 KBOU 091135 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 535 AM MDT SAT JUN 9 2012 ...LOW HUMIDITY AND INCREASING WINDS EXPECTED TODAY... .AN UPPER TROUGH WILL BE APPROACHING COLORADO FROM THE PACIFIC NORTHWEST...INCREASING SOUTHWEST WINDS ACROSS THE STATE... ESPECIALLY OVER THE MOUNTAINS AND FAR EASTERN PLAINS. TEMPERATURES WILL ALSO BE WARMER THAN NORMAL WITH LOW AFTERNOON RELATIVE HUMIDITIES. THE NORTH-CENTRAL MOUNTAINS AND FAR EASTERN COLORADO PLAINS HAVE NOT RECEIVED MUCH RECENT RAINFALL...SO VEGETATION WILL BE RELATIVELY DRY. THE COMBINATION OF SUNNY SKIES...LOW HUMIDITIES AND GUSTY WINDS WILL CAUSE CRITICAL FIRE WEATHER CONDITIONS SATURDAY. COZ211>214-217-218-092100- /O.CON.KBOU.FW.W.0016.120609T1600Z-120610T0300Z/ 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- 535 AM MDT SAT JUN 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY... * AFFECTED AREA...FIRE WEATHER ZONES 211...212...213...214... 217 AND 218. * TIMING...WINDS WILL BEGIN INCREASING MID MORNING WITH HUMIDITIES FALLING RAPIDLY SOON AFTER. CONDITIONS WILL IMPROVE AFTER SUNSET. * WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. * RELATIVE HUMIDITY...5 TO 12 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. 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. && $$ COZ249-092100- /O.CON.KBOU.FW.W.0016.120609T1600Z-120610T0300Z/ WASHINGTON COUNTY- 535 AM MDT SAT JUN 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY... * AFFECTED AREA...FIRE WEATHER ZONE 249. * TIMING...WINDS WILL BEGIN INCREASING MID MORNING WITH HUMIDITIES FALLING RAPIDLY SOON AFTER. CONDITIONS WILL IMPROVE AFTER SUNSET. * WINDS...SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...5 TO 10 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE RAPID FIRE GROWTH. 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. && $$
448 WWUS85 KBOU 091545 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 945 AM MDT SAT JUN 9 2012 ...LOW HUMIDITY AND INCREASING WINDS EXPECTED TODAY... .AN UPPER TROUGH WILL BE APPROACHING COLORADO FROM THE PACIFIC NORTHWEST...INCREASING SOUTHWEST WINDS ACROSS THE STATE... ESPECIALLY OVER THE MOUNTAINS AND FAR EASTERN PLAINS. TEMPERATURES WILL ALSO BE MUCH WARMER THAN NORMAL WITH VERY LOW RELATIVE HUMIDITIES. THE NORTH-CENTRAL MOUNTAINS AND FOOTHILLS AND FAR EASTERN COLORADO PLAINS HAVE NOT RECEIVED MUCH RECENT RAINFALL...SO VEGETATION WILL BE QUITE DRY. THE COMBINATION OF SUNNY SKIES...LOW HUMIDITIES AND GUSTY WINDS WILL CAUSE CRITICAL FIRE WEATHER CONDITIONS. COZ215-216-092345- /O.EXB.KBOU.FW.W.0016.120609T1545Z-120610T0300Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- 945 AM MDT SAT JUN 9 2012 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 215 AND 216. * TIMING...RED FLAG CONDITIONS WILL OCCUR THROUGH THIS AFTERNOON AND CONTINUE UNTIL LATE EVENING WHEN HUMIDITIES IMPROVE SLIGHTLY. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS AROUND 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 7 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ COZ211>214-217-218-092345- /O.EXT.KBOU.FW.W.0016.120609T1545Z-120610T0300Z/ 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- 945 AM MDT SAT JUN 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS AND HIGH VALLEYS... * AFFECTED AREA...FIRE WEATHER ZONES 211...212...213...214... 217 AND 218. * TIMING...WINDS WILL INCREASE THROUGH THE AFTERNOON AND HUMIDITIES WILL BE VERY LOW THROUGH MID EVENING. CONDITIONS WILL SLOWLY IMPROVE AFTER SUNSET. * WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH ON RIDGETOPS. * RELATIVE HUMIDITY...5 TO 11 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. 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. && $$ COZ249-092345- /O.CON.KBOU.FW.W.0016.120609T1600Z-120610T0300Z/ WASHINGTON COUNTY- 945 AM MDT SAT JUN 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY... * AFFECTED AREA...FIRE WEATHER ZONE 249. * TIMING...WINDS WILL INCREASE THROUGH EARLY EVENING WHILE HUMIDITIES WILL DROP INTO THE SINGLE DIGITS. CONDITIONS WILL IMPROVE AFTER SUNSET. * WINDS...SOUTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 5 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ BARJENBRUCH
784 WWUS85 KBOU 092100 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 300 PM MDT SAT JUN 9 2012 ...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE IN THE NORTHERN FRONT RANGE FOOTHILLS... .AN UPPER LEVEL TROUGH WILL PASS NORTH OF THE STATE TONIGHT WITH AN ASSOCIATED COLD FRONT MOVING ACROSS THE MOUNTAINS AND FOOTHILLS THIS EVENING. THIS WILL BRING A WIND SHIFT FROM SOUTHWEST WINDS TO THE WEST/NORTHWEST AS THE FRONT PASSES. WINDS ARE EXPECTED TO DECREASE BEHIND THE FRONT IN MOST AREAS...HOWEVER THE NORTHERN FRONT RANGE FOOTHILLS WILL LIKELY SEE STRONG GUSTY WINDS CONTINUE THROUGH MUCH OF TONIGHT AND SUNDAY. IN ADDITION...ONLY POOR HUMIDITY RECOVERY WILL OCCUR THERE TONIGHT WITH 15 PERCENT OR LESS HUMIDITY ON SUNDAY. AS A RESULT...THE RED FLAG WARNING FOR THE NORTHERN FRONT RANGE FOOTHILLS OR ZONE 215 HAS BEEN EXTENDED THROUGH SUNDAY EVENING. ELSEWHERE...WINDS WILL BE A LITTLE WEAKER ON SUNDAY WITH A SLIGHT IMPROVEMENT IN HUMIDITIES. COZ215-100500- /O.EXT.KBOU.FW.W.0016.000000T0000Z-120611T0400Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- 300 PM MDT SAT JUN 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS... * AFFECTED AREA...FIRE WEATHER ZONE 215. * TIMING...AN APPROACHING COLD FRONT LATE THIS EVENING WILL BRING SHIFTING AND GUSTY WINDS TO THE FRONT RANGE FOOTHILLS. DESPITE THE COOLER TEMPERATURES...HUMIDITY RECOVERY WILL BE POOR OVERNIGHT WITH A CONTINUATION OF RED FLAG CONDITIONS SUNDAY. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS AROUND 30 MPH THROUGH EARLY EVENING...THEN SHIFTING TO THE NORTHWEST LATE THIS EVENING AT 20 TO 30 MPH WITH GUSTS AROUND 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 7 PERCENT THROUGH EARLY EVENING... THEN POOR HUMIDITY RECOVERY TO AROUND 40 PERCENT TONIGHT...THEN DROPPING TO 15 PERCENT OR LESS ON SUNDAY. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL SUPPORT EXTREME FIRE BEHAVIOR AND RAPID SPREAD OF ANY 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. && $$ COZ211>214-216>218-100300- /O.CON.KBOU.FW.W.0016.000000T0000Z-120610T0300Z/ JACKSON COUNTY BELOW 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- 300 PM MDT SAT JUN 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS...HIGH VALLEYS...AND SOUTHERN FRONT RANGE FOOTHILLS... * AFFECTED AREA...FIRE WEATHER ZONES 211...212...213...214... 216...217 AND 218. * TIMING...CURRENT RED FLAG CONDITIONS WILL SLOWLY IMPROVE AFTER SUNSET. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH ON RIDGETOPS. * RELATIVE HUMIDITY...AS LOW AS 7 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ COZ249-100300- /O.CON.KBOU.FW.W.0016.000000T0000Z-120610T0300Z/ WASHINGTON COUNTY- 300 PM MDT SAT JUN 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY... * AFFECTED AREA...FIRE WEATHER ZONE 249. * TIMING...WINDS WILL BEGIN TO DECREASE BY SUNSET...WITH ONLY A SLIGHT IMPROVEMENT IN HUMIDITIES. * WINDS...SOUTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 5 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL ALLOW FOR ANY FIRE THAT STARTS TO SPREAD QUICKLY AND HAVE RAPID FIRE GROWTH. 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. && $$ BARJENBRUCH
922 WWUS85 KBOU 100305 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 905 PM MDT SAT JUN 9 2012 ...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE IN THE NORTHERN FRONT RANGE FOOTHILLS THROUGH SUNDAY... .A COLD FRONT WILL MOVE ACROSS THE NORTHERN COLORADO MOUNTAINS OVERNIGHT. THIS WILL CAUSE THE WINDS TO SHIFT TO NORTHWEST BEHIND THE FRONT. TEMPERATURES WILL DROP WITH HIGHER HUMIDITIES BEHIND THE FRONT. THE WINDS WILL BE STRONGEST IN THE NORTHERN FRONT RANGE FOOTHILLS...ESPECIALLY IN LARIMER COUNTY...AND THIS WILL RESULT IN POOR TO FAIR HUMIDITY RECOVERY OVERNIGHT. WINDS WILL CONTINUE IN THIS AREA ON SUNDAY WITH HUMIDITIES DROPPING TO AROUND 15 PERCENT. AS A RESULT...THE RED FLAG WARNING FOR THE NORTHERN FRONT RANGE FOOTHILLS OR ZONE 215 WILL CONTINUE THROUGH SUNDAY EVENING. ELSEWHERE...TEMPERATURES WILL COOL AND HUMIDITIES INCREASE OVERNIGHT THOUGH THERE WILL STILL BE SOME WIND. WINDS WILL BE A LITTLE WEAKER ON SUNDAY WITH A SLIGHT IMPROVEMENT IN HUMIDITIES...THOUGH CONDITIONS MAY STILL APPROACH RED FLAG CRITERIA IN THE AFTERNOON. COZ211>214-216>218-100415- /O.EXP.KBOU.FW.W.0016.000000T0000Z-120610T0300Z/ 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- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK 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- 905 PM MDT SAT JUN 9 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF THE NORTH CENTRAL COLORADO MOUNTAINS INCLUDING FIRE ZONES 211...212...213...214...216...AND 218... TEMPERATURES WILL COOL AND HUMIDITIES INCREASE THIS EVENING...THOUGH IT WILL REMAIN WINDY BEHIND A COLD FRONT THAT WILL PASS DURING THE NIGHT. SUNDAY WILL BE COOLER BUT STILL DRY WITH SOME WIND...BUT LESS EXTREME THAN TODAY. $$ COZ249-100415- /O.EXP.KBOU.FW.W.0016.000000T0000Z-120610T0300Z/ WASHINGTON COUNTY- 905 PM MDT SAT JUN 9 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR WASHINGTON COUNTY...FIRE WEATHER ZONE 249... TEMPERATURES WILL COOL AND HUMIDITIES INCREASE THIS EVENING...THOUGH IT WILL REMAIN WINDY BEHIND A COLD FRONT THAT WILL PASS DURING THE NIGHT. SUNDAY WILL BE COOLER BUT STILL DRY WITH SOME WIND...BUT LESS EXTREME THAN TODAY. $$ COZ215-101200- /O.CON.KBOU.FW.W.0016.000000T0000Z-120611T0400Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- 905 PM MDT SAT JUN 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS...FIRE ZONE 215... * AFFECTED AREA...FIRE WEATHER ZONE 215. * TIMING...A COLD FRONT WILL BRING A WIND SHIFT TO THE NORTHWEST BETWEEN 11 PM AND 2 AM...WITH WINDS GUSTING AS HIGH AS 50 MPH BEHIND THE FRONT LATE TONIGHT. DESPITE THE COOLER TEMPERATURES...HUMIDITY RECOVERY WILL BE POOR OVERNIGHT WITH A CONTINUATION OF RED FLAG CONDITIONS SUNDAY. * WINDS...SOUTHWEST WEST 20 TO 30 MPH BECOMING NORTHWEST AROUND MIDNIGHT WITH GUSTS TO 50 MPH AFTER MIDNIGHT. * RELATIVE HUMIDITY...INCREASING TO 35-45 PERCENT TONIGHT THEN LOWERING TO 10-15 PERCENT ON SUNDAY. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL SUPPORT EXTREME FIRE BEHAVIOR AND RAPID SPREAD OF ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ GIMMESTAD
296 WWUS85 KBOU 101145 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 545 AM MDT SUN JUN 10 2012 ...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE IN THE NORTHERN FRONT RANGE FOOTHILLS TODAY... COZ215-102200- /O.CON.KBOU.FW.W.0016.000000T0000Z-120611T0400Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- 545 AM MDT SUN JUN 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS... * AFFECTED AREA...FIRE WEATHER ZONE 215. * TIMING...WINDY AND DRY CONDITIONS WILL CONTINUE THROUGH SUNDAY. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * RELATIVE HUMIDITY...WILL RANGE FROM 9 TO 14 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL SUPPORT EXTREME FIRE BEHAVIOR AND RAPID SPREAD OF ANY 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. && $$
051 WWUS85 KBOU 102159 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 359 PM MDT SUN JUN 10 2012 ...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE IN THE NORTHERN FRONT RANGE FOOTHILLS THROUGH 10 PM MDT... COZ215-110400- /O.CON.KBOU.FW.W.0016.000000T0000Z-120611T0400Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- 359 PM MDT SUN JUN 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS... * AFFECTED AREA...FIRE WEATHER ZONE 215. * TIMING...WINDY AND DRY CONDITIONS WILL CONTINUE THROUGH 10 PM MDT TONIGHT. * WINDS...WEST-SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 6-10 PERCENT. * IMPACTS...STRONG WINDS AND LOW HUMIDITY WILL SUPPORT EXTREME FIRE BEHAVIOR AND RAPID SPREAD OF ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
213 WWUS85 KBOU 110400 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1000 PM MDT SUN JUN 10 2012 COZ215-110500- /O.EXP.KBOU.FW.W.0016.000000T0000Z-120611T0400Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- 1000 PM MDT SUN JUN 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS...FIRE ZONE 215... WINDS HAVE DECREASED IN THE NORTHERN FRONT RANGE FOOTHILLS AND WITH COOLING TEMPERATURES HUMIDITIES HAVE BEGUN TO INCREASE...SO THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. IT WILL REMAIN DRY WITH SOME WIND OVERNIGHT...HOWEVER THE CONDITIONS FOR EASY IGNITION AND RAPID FIRE SPREAD WILL NOT BE AS EXTREME. OVERNIGHT HUMIDITIES WILL RISE TO BETWEEN 40 AND 50 PERCENT...WITH WINDS STILL GENERALLY IN THE 10-20 MPH RANGE IN EXPOSED OR WIND CHANNELED AREAS. ON MONDAY THE WINDS WILL BE LIGHTER BUT HUMIDITIES WILL STILL BE LOW...WITH MINIMUM HUMIDITIES AROUND 15 PERCENT. THIS WILL MEAN THAT ACTIVE FIRE BEHAVIOR IS STILL POSSIBLE...BUT THE DANGER WILL BE LOWER THAN IT HAS BEEN THE LAST COUPLE OF DAYS. $$ GIMMESTAD
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 6:10 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 50 min |
| Jun 7, 6:28 PM MDT | Tornado Warning | BOU | Elbert | 47 min |
| Jun 7, 6:31 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 44 min |
| Jun 7, 7:05 PM MDT | Tornado Warning | BOU | Logan, Weld | 40 min |
| Jun 7, 7:14 PM MDT | Tornado Warning | BOU | Elbert | 31 min |
| Jun 7, 7:45 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 min |
| Jun 7, 8:05 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 40 min |
| Jun 7, 8:31 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 20 min |
| Jun 7, 8:33 PM MDT | Tornado Warning | BOU | Weld | 27 min |
| Jun 7, 8:57 PM MDT | Tornado Warning | BOU | Weld | 33 min |
| Jun 7, 9:00 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 45 min |
| Jun 7, 9:28 PM MDT | Tornado Warning | BOU | Weld | 32 min |
| Jun 7, 9:42 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 48 min |
| Jun 7, 9:57 PM MDT | Tornado Warning | BOU | Weld | 33 min |
| Jun 7, 10:15 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 45 min |
| Jun 7, 10:29 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 46 min |
| Jun 7, 10:37 PM MDT | Areal Flood Advisory | BOU | Weld | 83 min |
| Jun 7, 10:59 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 34 min |
| Jun 7, 11:02 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| Jun 7, 11:12 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 33 min |
| Jun 8, 1:40 AM MDT | Severe Thunderstorm Warning | BOU | Elbert | 37 min |
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.