Alert archive / Colorado / Red Flag Warnings in 2017
Red Flag Warning 22, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Jun 13, 2017, 3:58 AM MDT for 5 counties in Colorado. It took effect at Jun 13, 2017, 10:00 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
- Jun 13, 2017, 3:58 AM MDT (09:58 UTC)
- In effect from
- Jun 13, 2017, 10:00 AM MDT
- Expired
- Jun 13, 2017, 7:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Jefferson County, CO, Park County, CO
The radar
The Denver radar (KFTG), 80 km from the middle of the area, began a volume at 09:59 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 00:00Z, 10.0 hours before the alert went out and 191 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
- 108 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 3977 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
603 WWUS85 KBOU 130958 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 358 AM MDT Tue Jun 13 2017 COZ214-216-131800- /O.NEW.KBOU.FW.W.0022.170613T1600Z-170614T0100Z/ Central and Southeast Park County- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 358 AM MDT Tue Jun 13 2017 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH PARK AND THE SOUTHERN 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 from 10 AM this morning to 7 PM MDT this evening. * Affected Area...Fire Weather Zones 214 and 216. * Timing...Winds increasing and humidities dropping late this morning through the afternoon. Conditions will improve this evening. * Winds...West 15 to 20 mph with gusts up to 35 mph. * Relative Humidity...as low as 10 percent. * Impacts...Low humidity values and gusty winds will result in high fire danger. These conditions may allow for fast burning wildfires. Open burning is prohibited on Red Flag days. 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. && $$
2 follow-up statements
870 WWUS85 KBOU 131610 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 1010 AM MDT Tue Jun 13 2017 COZ214-216-140100- /O.CON.KBOU.FW.W.0022.000000T0000Z-170614T0100Z/ Central and Southeast Park County- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 1010 AM MDT Tue Jun 13 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH PARK AND THE SOUTHERN FRONT RANGE FOOTHILLS... * Affected Area...Fire Weather Zones 214 and 216. * Timing...Winds increasing and humidities will be dropping through the afternoon. Conditions will improve this evening. * Winds...West 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...as low as 10 percent. * Impacts...Low humidity values and gusty winds will result in high fire danger. These conditions may allow for fast burning wildfires. Open burning is prohibited on Red Flag days. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
511 WWUS85 KBOU 140105 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 705 PM MDT Tue Jun 13 2017 COZ214-216-140215- /O.EXP.KBOU.FW.W.0022.000000T0000Z-170614T0100Z/ Central and Southeast Park County- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 705 PM MDT Tue Jun 13 2017 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH PARK AND THE SOUTHERN FRONT RANGE FOOTHILLS... Gusty westerly winds up to 35 mph will continue this evening but humidities will slowly increase through the evening hours. This will reduce the impacts for extreme fire behavior. $$
Nearby
Red Flag Warnings in Colorado, 2017Every red flag warning in 2017
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.