Alert archive / Colorado / Red Flag Warnings in 2012
Red Flag Warning 34, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Oct 16, 2012, 3:49 PM MDT for 16 counties in Colorado. It took effect at Oct 17, 2012, 12:00 PM MDT. 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
- Oct 16, 2012, 3:49 PM MDT (21:49 UTC)
- In effect from
- Oct 17, 2012, 12:00 PM MDT
- Expired
- Oct 17, 2012, 6:00 PM MDT
- In force
- 6 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 42 km from the middle of the area, began a volume at 21:54 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, 9.8 hours before the alert went out and 80 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
- 2699 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
059 WWUS85 KBOU 162149 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 349 PM MDT TUE OCT 16 2012 .GUSTY NORTHWEST WINDS WILL DEVELOP OVER NORTHEASTERN COLORADO ON WEDNESDAY BEHIND A COLD FRONT. THE WINDS COMBINED WITH LOW HUMIDITY WILL LEAD TO VERY HIGH FIRE DANGER WEDNESDAY AFTERNOON. COZ238>251-171000- /O.UPG.KBOU.FW.A.0015.121017T1800Z-121018T0000Z/ /O.NEW.KBOU.FW.W.0034.121017T1800Z-121018T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- 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- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 349 PM MDT TUE OCT 16 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM MDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHEASTERN COLORADO INCLUDING FIRE WEATHER ZONES 238 THROUGH 251... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TO 6 PM MDT WEDNESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 238...239...240...241... 242...243...244...245...246...247...248...249...250 AND 251. * TIMING...FROM NOON ON WEDNESDAY UNTIL 6 PM EARLY WEDNESDAY EVENING. * WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * IMPACTS...GUSTY WINDS COMBINED WITH DRY FUELS WILL INCREASE THE POTENTIAL FOR RAPID FIRE GROWTH AND 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. && $$ GIMMESTAD
4 follow-up statements
113 WWUS85 KBOU 171048 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 448 AM MDT WED OCT 17 2012 .STRONG NORTHWEST WINDS WILL DEVELOP OVER NORTHEASTERN COLORADO THIS AFTERNOON AS HIGH PRESSURE BUILDS OVER THE STATE. THE WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITIES TO PRODUCE VERY HIGH FIRE DANGERS THIS AFTERNOON. COZ238>251-171900- /O.CON.KBOU.FW.W.0034.121017T1800Z-121018T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 448 AM MDT WED OCT 17 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 238...239...240...241... 242...243...244...245...246...247...248...249...250 AND 251. * TIMING...FROM NOON TODAY UNTIL 6 PM THIS EVENING. * WINDS...NORTHWEST 25 TO 40 MPH WITH GUSTS 50 TO 60 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...GUSTY WINDS COMBINED WITH DRY FUELS WILL INCREASE THE POTENTIAL FOR RAPID FIRE GROWTH AND EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
154 WWUS85 KBOU 171802 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1202 PM MDT WED OCT 17 2012 .STRONG NORTHWEST WINDS WILL DEVELOP OVER NORTHEASTERN COLORADO THIS AFTERNOON AS HIGH PRESSURE BUILDS OVER THE STATE. THE WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITIES TO PRODUCE VERY HIGH FIRE DANGER. COZ238>251-180000- /O.CON.KBOU.FW.W.0034.000000T0000Z-121018T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- 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- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 1202 PM MDT WED OCT 17 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 238...239...240...241... 242...243...244...245...246...247...248...249...250 AND 251. * TIMING...NOON TODAY UNTIL 6 PM THIS EVENING. * WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS FROM 50 TO 60 MPH. * RELATIVE HUMIDITY...12-16 PERCENT. * IMPACTS...GUSTY WINDS COMBINED WITH DRY FUELS WILL INCREASE THE POTENTIAL FOR RAPID FIRE GROWTH AND 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. && $$
916 WWUS85 KBOU 172026 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 226 PM MDT WED OCT 17 2012 .STRONG NORTHWEST WINDS WILL DEVELOP OVER NORTHEASTERN COLORADO THIS AFTERNOON AS HIGH PRESSURE BUILDS OVER THE STATE. THE WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITIES TO PRODUCE VERY HIGH FIRE DANGER. SIMILAR CONDITIONS CAN BE EXPECTED AGAIN FOR THURSDAY AFTERNOON. COZ242-244-248>251-180430- /O.NEW.KBOU.FW.W.0035.121018T1800Z-121019T0000Z/ /O.CON.KBOU.FW.W.0034.000000T0000Z-121018T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 226 PM MDT WED OCT 17 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FAR NORTHEAST COLORADO PLAINS... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TO 6 PM MDT THURSDAY. * AFFECTED AREA...FIRE WEATHER ZONES 242...244...248...249... 250 AND 251. * TIMING...NOON TODAY UNTIL 6 PM THIS EVENING. SIMILAR CONDITIONS FOR THURSDAY AFTERNOON. AS A RESULT...ANOTHER RED FLAG WARNING WILL BE IN EFFECT FROM NOON THURSDAY THROUGH 6 PM MDT THURSDAY EVENING. * WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * IMPACTS...GUSTY WINDS COMBINED WITH DRY FUELS WILL INCREASE THE POTENTIAL FOR RAPID FIRE GROWTH AND EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ COZ238>241-243-245>247-180000- /O.CON.KBOU.FW.W.0034.000000T0000Z-121018T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- 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- 226 PM MDT WED OCT 17 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 238...239...240...241... 243...245...246 AND 247. * TIMING...NOON TODAY UNTIL 6 PM THIS EVENING. * WINDS...NORTHWEST 20 TO 30 MPH WITH GUSTS UP TO 55 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...GUSTY WINDS COMBINED WITH DRY FUELS WILL INCREASE THE POTENTIAL FOR RAPID FIRE GROWTH AND 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. && $$
151 WWUS85 KBOU 180012 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 612 PM MDT WED OCT 17 2012 .STRONG NORTHWEST WINDS WILL DEVELOP AGAIN OVER NORTHEASTERN COLORADO THURSDAY AFTERNOON AS A STRONG PRESSURE GRADIENT BUILDS OVER THE STATE. THE WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITIES TO PRODUCE VERY HIGH FIRE DANGER. COZ242-244-248>251-180815- /O.EXP.KBOU.FW.W.0034.000000T0000Z-121018T0000Z/ /O.CON.KBOU.FW.W.0035.121018T1800Z-121019T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 612 PM MDT WED OCT 17 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 6 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... * AFFECTED AREA...FIRE WEATHER ZONES 242...244...248...249... 250 AND 251. * TIMING...NOON THURSDAY UNTIL 6 PM THURSDAY EVENING. * WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * IMPACTS...GUSTY WINDS COMBINED WITH DRY FUELS WILL INCREASE THE POTENTIAL FOR RAPID FIRE GROWTH AND EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ COZ238>241-243-245>247-180115- /O.EXP.KBOU.FW.W.0034.000000T0000Z-121018T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- 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- 612 PM MDT WED OCT 17 2012 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST COLORADO PLAINS... A FEW POCKETS OF CRITICAL CONDITIONS MAY STILL REMAIN THROUGH 7 PM...BUT THEN WINDS ARE EXPECTED TO DIMINISH AND HUMIDITIES WILL BE RECOVERING ABOVE THE CRITICAL LEVELS. $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 3:52 AM MDT | Fire Weather Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 12 hr |
| Oct 16, 4:47 AM MDT | High Wind Warning | BOU | Boulder, Larimer | 16 hr |
| Oct 16, 4:25 PM MDT | High Wind Watch | BOU | Logan, Phillips, Sedgwick, Weld | 12 hr |
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.