Alert archive / Colorado / Red Flag Warnings in 2015
Red Flag Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Sep 14, 2015, 3:47 PM MDT for 6 counties in Colorado. It took effect at Sep 15, 2015, 11:00 AM MDT. It was in force for 9 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
- Sep 14, 2015, 3:47 PM MDT (21:47 UTC)
- In effect from
- Sep 15, 2015, 11:00 AM MDT
- Expired
- Sep 15, 2015, 8:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO, Park County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 49 km from the middle of the area, began a volume at 21:45 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 (KDEN), launched 12:00Z, 9.8 hours before the alert went out and 106 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
- 3807 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
023 WWUS85 KBOU 142147 RFWBOU .WARM TEMPERATURES ARE EXPECTED AGAIN ON TUESDAY ALONG WITH LOW RELATIVE HUMIDITIES IN THE AFTERNOON. SOUTHWESTERLY WINDS ARE EXPECTED TO INCREASE DURING THE AFTERNOON ACROSS PARK COUNTY AND OVER THE PALMER DIVIDE. THIS COMBINATION OF WEATHER CONDITIONS AND DRY FUELS FROM THE LACK OF RECENT RAINFALL WILL MAKE EXTREME FIRE BEHAVIOR POSSIBLE TUESDAY AFTERNOON. COZ214-241-246-247-150600- /O.UPG.KBOU.FW.A.0006.150915T1700Z-150916T0200Z/ /O.NEW.KBOU.FW.W.0013.150915T1700Z-150916T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 347 PM MDT MON SEP 14 2015 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE AREA AND PARK COUNTY...FIRE WEATHER ZONES 214...241...246 AND 247... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH WILL BE IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 214...241...246 AND 247. * TIMING...LATE TUESDAY MORNING INTO TUESDAY EVENING... * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...THE RECENT DRY CONDITIONS COMBINED WITH LOW HUMIDITY AND GUSTY WINDS MAY ALLOW NEW FIRE STARTS TO GROW RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW OR WILL OCCUR SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITIES...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. IF A FIRE IS STARTED OR ONGOING...THE POTENTIAL FOR IT TO RAPIDLY SPREAD IS HIGH. && $$
4 follow-up statements
056 WWUS85 KBOU 151030 RFWBOU COZ249-151830- /O.EXA.KBOU.FW.W.0013.150915T1700Z-150916T0200Z/ WASHINGTON COUNTY- 430 AM MDT TUE SEP 15 2015 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WIND AND LOW RELATIVE HUMIDITY FOR PARK COUNTY AND THE PALMER DIVIDE REGION IN EAST CENTRAL COLORADO... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR GUSTY WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 249. * TIMING...LATE THIS MORNING THROUGH EARLY THIS EVENING... * WINDS...SOUTHWEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * IMPACTS...THE RECENT DRY CONDITIONS COMBINED WITH LOW HUMIDITY AND GUSTY WINDS MAY ALLOW NEW FIRE STARTS TO GROW AND SPREAD RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW OR WILL OCCUR SHORTLY. A COMBINATION OF STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. IF A FIRE IS STARTED OR ONGOING...THE POTENTIAL FOR IT TO RAPIDLY SPREAD IS HIGH. && $$ COZ214-241-246-247-151830- /O.CON.KBOU.FW.W.0013.150915T1700Z-150916T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 430 AM MDT TUE SEP 15 2015 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WIND AND LOW RELATIVE HUMIDITY FOR PARK COUNTY AND THE PALMER DIVIDE AREA...FIRE WEATHER ZONES 214...241...246 AND 247... * AFFECTED AREA...FIRE WEATHER ZONES 214...241...246 AND 247. * TIMING...LATE THIS MORNING THROUGH EARLY THIS EVENING... * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...THE RECENT DRY CONDITIONS COMBINED WITH LOW HUMIDITY AND GUSTY WINDS MAY ALLOW NEW FIRE STARTS TO GROW AND SPREAD RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW OR WILL OCCUR SHORTLY. A COMBINATION OF STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. IF A FIRE IS STARTED OR ONGOING...THE POTENTIAL FOR IT TO RAPIDLY SPREAD IS HIGH. && $$ BAKER
539 WWUS85 KBOU 151706 RFWBOU COZ214-241-246-247-249-160115- /O.CON.KBOU.FW.W.0013.000000T0000Z-150916T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 1106 AM MDT TUE SEP 15 2015 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WIND AND LOW RELATIVE HUMIDITY FOR PARK COUNTY AND THE PALMER DIVIDE AREA...FIRE WEATHER ZONES 214...241...246 AND 247... * AFFECTED AREA...FIRE WEATHER ZONES 214...241...246...247 AND 249. * TIMING...LATE THIS MORNING THROUGH EARLY THIS EVENING... * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...THE RECENT DRY CONDITIONS COMBINED WITH LOW HUMIDITY AND GUSTY WINDS MAY ALLOW NEW FIRE STARTS TO GROW AND SPREAD RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW OR WILL OCCUR SHORTLY. A COMBINATION OF STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. IF A FIRE IS STARTED OR ONGOING...THE POTENTIAL FOR IT TO RAPIDLY SPREAD IS HIGH. && $$
332 WWUS85 KBOU 152206 RFWBOU .WARM TEMPERATURES AND LOW HUMIDITIES HAVE DEVELOPED THIS AFTERNOON ALONG WITH GUSTY SOUTHWEST WINDS UP TO 25 TO 30 MPH. GRASS FIRES WERE REPORTED EARLIER THIS AFTERNOON NEAR PARKER IN DOUGLAS COUNTY AND NEAR AGATE IN ELBERT COUNTY...INDICATING HOW DRY THE VEGETATION IS ALONG THE PALMER DIVIDE. DANGEROUS FIRE BEHAVIOR CAN BE EXPECTED THROUGH EARLY THIS EVENING. PEOPLE SHOULD CONTINUE USING CAUTION THROUGH TONIGHT. COZ214-241-246-247-249-160200- /O.CON.KBOU.FW.W.0013.000000T0000Z-150916T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- 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- 406 PM MDT TUE SEP 15 2015 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WIND AND LOW RELATIVE HUMIDITY FOR PARK COUNTY AND THE PALMER DIVIDE AREA...FIRE WEATHER ZONES 214...241...246 AND 247... * AFFECTED AREA...FIRE WEATHER ZONES 214...241...246...247 AND 249. * TIMING...THROUGH EARLY THIS EVENING... * WINDS...SOUTHWEST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...THE RECENT DRY CONDITIONS COMBINED WITH LOW HUMIDITY AND GUSTY WINDS MAY ALLOW NEW FIRE STARTS TO GROW AND SPREAD RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW OR WILL OCCUR SHORTLY. A COMBINATION OF STRONG AND GUSTY WINDS...LOW RELATIVE HUMIDITIES...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. IF A FIRE IS STARTED OR ONGOING...THE POTENTIAL FOR IT TO RAPIDLY SPREAD IS HIGH. && $$
163 WWUS85 KBOU 160148 RFWBOU COZ214-241-246-247-249-160300- /O.EXP.KBOU.FW.W.0013.000000T0000Z-150916T0200Z/ CENTRAL AND SOUTHEAST PARK COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- 748 PM MDT TUE SEP 15 2015 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 214...241...246...247 AND 249... CONDITIONS ARE IMPROVING AS RELATIVE HUMIDITY INCREASES AND WIND HAS SIGNIFICANTLY DECREASED IN SPEED. $$
Nearby
Red Flag Warnings in Colorado, 2015Every red flag warning in 2015
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.