Alert archive / Colorado / Red Flag Warnings in 2011
Red Flag Warning 23, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Jun 29, 2011, 3:48 PM MDT for 11 counties in Colorado. It took effect at Jun 30, 2011, 11:00 AM MDT. It was in force for 8 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 29, 2011, 3:48 PM MDT (21:48 UTC)
- In effect from
- Jun 30, 2011, 11:00 AM MDT
- Expired
- Jun 30, 2011, 7:25 PM MDT
- In force
- 8 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Arapahoe County, CO, Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Park County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 28 km from the middle of the area, began a volume at 21:49 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 7:16 PM MDT | TSTM WND GST 65 | 2 Ne Boulder, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.8 hours before the alert went out and 138 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
- 4084 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
428 WWUS85 KBOU 292148 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 348 PM MDT WED JUN 29 2011 ...VERY HIGH TO EXTREME FIRE DANGER WILL OCCUR THURSDAY... .SOUTHWEST WINDS WILL INCREASE AND BECOME QUITE STRONG BY AFTERNOON. WITH THE COMBINATION OF UNSEASONABLY WARM TEMPERATURES AND LOW RELATIVE HUMIDITIES...THE WILDLAND FIRE DANGER WILL INCREASE AS WELL. BY THURSDAY AFTERNOON...THE FRONT RANGE FOOTHILLS...SOUTH PARK...AND THE PALMER DIVIDE EASTWARD THROUGH LINCOLN AND WASHINGTON COUNTIES WILL SEE VERY HIGH TO EXTREME WILDLAND FIRE BEHAVIOR CONDITIONS DEVELOP. HIGH BASED THUNDERSTORMS PRODUCING STRONG AND GUSTY WINDS COULD ALSO CONTRIBUTE TO NEW FIRE STARTS. COZ214>216-241-246-247-301000- /O.UPG.KBOU.FW.A.0011.110630T1700Z-110701T0300Z/ /O.NEW.KBOU.FW.W.0023.110630T1700Z-110701T0300Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 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- 348 PM MDT WED JUN 29 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 214...215... 216...241...246 AND 247... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 214...ELEVEN MILE CANYON RESERVOIR...FAIRPLAY...GUFFEY...HARTSEL...LAKE GEORGE...SOUTH PARK...FIRE WEATHER ZONE 215...ESTES PARK...GLENDEVEY... LARAMIE RIVER VALLEY...NEDERLAND...RED FEATHER LAKES...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...FROM 1100 MDT TO 2100 MDT THURSDAY. * WINDS...SOUTHWEST 15 TO 30 MPH...WITH GUSTS UP TO 40 MPH IN THE AFTERNOON. STRONGER GUSTS TO 45 MPH WILL BE POSSIBLE IN AND NEAR SHOWERS AND THUNDERSTORMS. * RELATIVE HUMIDITY...MINIMUM VALUES WILL RANGE FROM 10 TO 15 PERCENT. * TEMPERATURES...HIGHS WILL RANGE FROM THE 80S IN THE FOOTHILLS AND SOUTH PARK...TO THE LOWER 90S ON THE PALMER DIVIDE. * LIGHTNING...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS...SOME DRY...COULD LEAD TO NEW FIRE STARTS. * IMPACTS...THE COMBINATION OF UNSEASONABLY WARM TEMPERATURES...LOW HUMIDITIES...STRONG GUSTY WINDS AND DRY VEGETATION WILL PRODUCE DANGEROUS WILDLAND FIRE BEHAVIOR CONDITIONS. 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. && $$ COZ249-301000- /O.NEW.KBOU.FW.W.0023.110630T1700Z-110701T0300Z/ WASHINGTON COUNTY- 348 PM MDT WED JUN 29 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 249... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY. * TIMING...FROM 1100 MDT TO 2100 MDT THURSDAY. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. STRONGER GUSTS TO 45 MPH WILL BE POSSIBLE IN AND NEAR SHOWERS AND THUNDERSTORMS. * RELATIVE HUMIDITY...MINIMUM VALUES WILL RANGE FROM 10 TO 15 PERCENT. * TEMPERATURES...HIGHS WILL BE IN THE MID 90S. * LIGHTNING...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS...SOME DRY...COULD LEAD TO NEW FIRE STARTS. * IMPACTS...THE COMBINATION OF UNSEASONABLY WARM TEMPERATURES...LOW HUMIDITIES...GUSTY WINDS AND DRY VEGETATION WILL PRODUCE DANGEROUS WILDLAND FIRE BEHAVIOR CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ BARJENBRUCH
4 follow-up statements
668 WWUS85 KBOU 301105 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 505 AM MDT THU JUN 30 2011 ...VERY HIGH TO EXTREME FIRE DANGER WILL OCCUR TODAY... .SOUTHWEST WINDS WILL INCREASE AND BECOME QUITE STRONG BY THIS AFTERNOON. WITH THE COMBINATION OF UNSEASONABLY WARM TEMPERATURES AND LOW RELATIVE HUMIDITIES...THE WILDLAND FIRE DANGER WILL INCREASE AS WELL. BY THIS AFTERNOON...THE FRONT RANGE FOOTHILLS...SOUTH PARK...AND THE PALMER DIVIDE EASTWARD THROUGH LINCOLN AND WASHINGTON COUNTIES WILL SEE VERY HIGH TO EXTREME WILDLAND FIRE BEHAVIOR CONDITIONS DEVELOP. HIGH BASED THUNDERSTORMS PRODUCING STRONG AND GUSTY WINDS COULD ALSO CONTRIBUTE TO NEW FIRE STARTS. COZ214>216-241-246-247-249-301915- /O.CON.KBOU.FW.W.0023.110630T1700Z-110701T0300Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 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- WASHINGTON COUNTY- 505 AM MDT THU JUN 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 214...215...216...241...246...247...AND 249. A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT THIS EVENING. * TIMING...FROM 1100 MDT TO 2100 MDT THURSDAY. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. STRONGER GUSTS TO 45 MPH WILL BE POSSIBLE IN AND NEAR SHOWERS AND THUNDERSTORMS. * RELATIVE HUMIDITY...MINIMUM VALUES WILL RANGE FROM 10 TO 15 PERCENT. * TEMPERATURES...HIGHS WILL BE IN THE MID 90S. * LIGHTNING...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS...SOME DRY...COULD LEAD TO NEW FIRE STARTS. * IMPACTS...THE COMBINATION OF UNSEASONABLY WARM TEMPERATURES... LOW HUMIDITIES...GUSTY WINDS AND DRY VEGETATION WILL PRODUCE DANGEROUS WILDLAND FIRE BEHAVIOR CONDITIONS. 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. && $$
814 WWUS85 KBOU 301840 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1240 PM MDT THU JUN 30 2011 ...VERY HIGH FIRE DANGER WILL OCCUR TODAY... .THE STRONGER SOUTHWEST WINDS IN THE FOOTHILLS HAVE BEEN DELAYED A BIT AS THE UPPER LEVEL SYSTEM RESPONSIBLE FOR THE STRONG WINDS HAS SLOWED. HOWEVER...GUSTY SOUTHWEST WINDS ARE STILL EXPECTED TO DEVELOP IN THE FOOTHILLS THIS AFTERNOON AND EVENING ESPECIALLY AS THUNDERSTORMS DEVELOP AND MOVE ACROSS THE FRONT RANGE. MEANWHILE...STRONG AND GUSTY SOUTHERLY WINDS WERE ALREADY DEVELOPING ACROSS PARK COUNTY EASTWARD ACROSS THE PALMER DIVIDE AND INTO LINCOLN AND WASHINGTON COUNTIES. THESE GUSTY WINDS WILL CONTINUE THROUGH THE EVENING. THUNDERSTORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS UP TO 70 MPH ALONG WITH CONSIDERABLE LIGHTNING AND NEW FIRE STARTS. COZ214>216-241-246-247-249-010300- /O.CON.KBOU.FW.W.0023.000000T0000Z-110701T0300Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 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- WASHINGTON COUNTY- 1240 PM MDT THU JUN 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 214... 215...216...241...246...247 AND 249... * TIMING...UNTIL 2100 MDT THURSDAY. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. STRONGER GUSTS IN EXCESS OF 50 MPH WILL OCCUR IN AND NEAR THUNDERSTORMS. * RELATIVE HUMIDITY...MINIMUM VALUES NEAR 15 PERCENT. * TEMPERATURES...HIGHS WILL RANGE FROM THE UPPER 70S AND 80S IN THE FOOTHILLS AND PARK COUNTY TO THE LOWER TO MID 90S ON THE PLAINS. * LIGHTNING...NUMEROUS THUNDERSTORMS WITH CONSIDERABLE LIGHTNING AND NEW FIRE STARTS. * IMPACTS...THE COMBINATION OF UNSEASONABLY WARM TEMPERATURES...LOW HUMIDITIES...GUSTY WINDS AND DRY VEGETATION WILL PRODUCE DANGEROUS WILDLAND FIRE BEHAVIOR CONDITIONS. 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
753 WWUS85 KBOU 302205 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 405 PM MDT THU JUN 30 2011 ...FIRE DANGER EASING LATE THIS AFTERNOON AND EVENING.. .CRITICAL FIRE WEATHER CONDITIONS HAVE EASED ACROSS THE FRONT RANGE FOOTHILLS...PARK COUNTY...AND PALMER DIVIDE THIS AFTERNOON WITH MORE SHOWERS AND THUNDERSTORMS...COOLER TEMPERATURES...AND HIGHER HUMIDITIES. HIGH FIRE DANGER STILL EXISTS IN WARMER AND DRIER AIR OVER WASHINGTON AND LINCOLN COUNTIES. THUNDERSTORMS IN THE WARMER AND DRIER LOCATIONS WILL STILL BE CAPABLE OF PRODUCING WIND GUSTS UP TO 70 MPH ALONG WITH CONSIDERABLE LIGHTNING AND NEW FIRE STARTS. COZ214>216-241-302315- /O.CAN.KBOU.FW.W.0023.000000T0000Z-110701T0300Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- 405 PM MDT THU JUN 30 2011 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 214...215...216 AND 241... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE RED FLAG WARNING. * AFFECTED AREA...FIRE WEATHER ZONE 214...ELEVEN MILE CANYON RESERVOIR...FAIRPLAY...GUFFEY...HARTSEL...LAKE GEORGE...SOUTH PARK...FIRE WEATHER ZONE 215...ESTES PARK...GLENDEVEY... LARAMIE RIVER VALLEY...NEDERLAND...RED FEATHER LAKES...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. $$ COZ246-247-249-010300- /O.CON.KBOU.FW.W.0023.000000T0000Z-110701T0300Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 405 PM MDT THU JUN 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS...LOW HUMIDITY...AND NEW FIRE STARTS FROM LIGHTNING FOR FIRE WEATHER ZONES 246...247 AND 249... * TIMING...UNTIL 2100 MDT THIS EVENING. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. STRONGER GUSTS IN EXCESS OF 50 MPH WILL OCCUR IN AND NEAR THUNDERSTORMS. * RELATIVE HUMIDITY...15 TO 20 PERCENT. * TEMPERATURES...HIGHS WILL RANGE FROM THE UPPER 70S AND 80S IN THE FOOTHILLS AND PARK COUNTY TO THE LOWER TO MID 90S ON THE PLAINS. * LIGHTNING...NUMEROUS THUNDERSTORMS WITH CONSIDERABLE LIGHTNING AND NEW FIRE STARTS. * IMPACTS...THE COMBINATION OF LOW HUMIDITIES...GUSTY WINDS...LIGHTNING STRIKES...AND DRY VEGETATION WILL PRODUCE DANGEROUS WILDLAND FIRE BEHAVIOR CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ BARJENBRUCH
211 WWUS85 KBOU 010125 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 725 PM MDT THU JUN 30 2011 COZ246-247-249-010230- /O.CAN.KBOU.FW.W.0023.000000T0000Z-110701T0300Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 725 PM MDT THU JUN 30 2011 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS...LOW HUMIDITY... AND NEW FIRE STARTS FROM LIGHTNING FOR FIRE WEATHER ZONES 246... 247 AND 249... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE RED FLAG WARNING. * AFFECTED AREA...FIRE WEATHER ZONE 246...AGATE...HUGO... LIMON...MATHESON...FIRE WEATHER ZONE 247...FORDER...KARVAL... KUTCH...PUNKIN CENTER...FIRE WEATHER ZONE 249...AKRON... COPE...LAST CHANCE...OTIS. $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 5:05 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 40 min |
| Jun 29, 5:06 PM MDT | Severe Thunderstorm Warning | BOU | Grand, Jackson | 54 min |
| Jun 29, 5:09 PM MDT | Areal Flood Advisory | BOU | Grand | 25 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.