Alert archive / Colorado / Red Flag Warnings in 2016
Red Flag Warning 22, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Sep 8, 2016, 5:20 AM MDT for Jackson County, Colorado. It took effect at Sep 8, 2016, 12:00 PM MDT. It was in force for 7 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 8, 2016, 5:20 AM MDT (11:20 UTC)
- In effect from
- Sep 8, 2016, 12:00 PM MDT
- Expired
- Sep 8, 2016, 7:00 PM MDT
- In force
- 7 hr
- Issued by
- NWS Denver/Boulder, CO
County Jackson County, CO
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 11:20 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
Grand Junction, CO (KGJT), launched 00:00Z, 11.3 hours before the alert went out and 251 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
- 4020 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
369 WWUS85 KBOU 081120 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 520 AM MDT THU SEP 8 2016 ...FIRE DANGER REMAINS HIGH OVER PARTS OF NORTHERN COLORADO... .WESTERLY FLOW ALOFT WILL BRING ANOTHER AFTERNOON OF DRY...WARM AND BREEZY CONDITIONS TO NORTH CENTRAL COLORADO. CRITICAL FIRE WEATHER CONDITIONS WILL BE POSSIBLE ACROSS NORTH PARK THIS AFTERNOON WHERE THE COMBINATION OF LOW HUMIDITIES...GUSTY WINDS AND DRY FUELS MAY RESULT IN RAPID FIRE GROWTH AND DANGEROUS FIRE BEHAVIOR. COZ211-081930- /O.NEW.KBOU.FW.W.0022.160908T1800Z-160909T0100Z/ JACKSON COUNTY BELOW 9000 FEET- 520 AM MDT THU SEP 8 2016 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH PARK IN JACKSON COUNTY...FIRE WEATHER ZONE 211... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 211. * TIMING...RED FLAG CONDITIONS WILL DEVELOP BY EARLY AFTERNOON. CONDITIONS ARE EXPECTED TO IMPROVE RAPIDLY BY SUNSET AS WINDS DIMINISH AND HUMIDITIES INCREASE. * WINDS...WEST 15 TO 25 MPH WITH GUSTS AROUND 30 MPH. * RELATIVE HUMIDITY...10 TO 15 PERCENT. * IMPACTS...DANGEROUS FIRE BEHAVIOR AND RAPID FIRE SPREAD WILL BE POSSIBLE DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$
2 follow-up statements
462 WWUS85 KBOU 081736 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1136 AM MDT THU SEP 8 2016 ...FIRE DANGER REMAINS HIGH OVER PARTS OF NORTHERN COLORADO... WESTERLY FLOW ALOFT IS RESULTING IN WARM...DRY...AND BREEZY CONDITIONS ACROSS THE HIGH COUNTRY OF NORTH CENTRAL COLORADO. CRITICAL FIRE WEATHER CONDITIONS WILL BE POSSIBLE ACROSS NORTH PARK THIS AFTERNOON WHERE THE COMBINATION OF LOW HUMIDITIES...GUSTY WINDS AND DRY FUELS MAY RESULT IN RAPID FIRE GROWTH AND DANGEROUS FIRE BEHAVIOR. AT 1135 AM WEST WINDS ARE GUSTING OVER 30 MPH ACROSS NORTHERN JACKSON COUNTY...WHILE RH VALUES ARE IN THE 10 PCT RANGE. THESE CONDITIONS WILL PERSIST THIS AFTERNOON. COZ211-090100- /O.CON.KBOU.FW.W.0022.160908T1800Z-160909T0100Z/ JACKSON COUNTY BELOW 9000 FEET- 1136 AM MDT THU SEP 8 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH PARK IN JACKSON COUNTY...FIRE WEATHER ZONE 211... * AFFECTED AREA...FIRE WEATHER ZONE 211. * TIMING...RED FLAG CONDITIONS WILL DEVELOP BY EARLY AFTERNOON. CONDITIONS ARE EXPECTED TO IMPROVE RAPIDLY BY SUNSET AS WINDS DIMINISH AND HUMIDITIES INCREASE. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...DANGEROUS FIRE BEHAVIOR AND RAPID FIRE SPREAD WILL BE POSSIBLE DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$
328 WWUS85 KBOU 090057 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 657 PM MDT THU SEP 8 2016 COZ211-090200- /O.EXP.KBOU.FW.W.0022.000000T0000Z-160909T0100Z/ JACKSON COUNTY BELOW 9000 FEET- 657 PM MDT THU SEP 8 2016 ...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR ZONE 211...NORTH PARK IN JACKSON COUNTY... HUMIDITY HAS BEGUN TO INCREASE AND RECOVER AND WIND SPEEDS ARE SLOWLY DECREASING. $$
Nearby
Red Flag Warnings in Colorado, 2016Every red flag warning in 2016
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.