Alert archive / Colorado / Red Flag Warnings in 2022
Red Flag Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Apr 16, 2022, 2:08 PM MDT for 15 counties in Colorado. It took effect at Apr 17, 2022, 12:00 PM MDT. It was in force for 8 hr. 2 reports 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
- Apr 16, 2022, 2:08 PM MDT (20:08 UTC)
- In effect from
- Apr 17, 2022, 12:00 PM MDT
- Expired
- Apr 17, 2022, 8:00 PM MDT
- In force
- 8 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, 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), 45 km from the middle of the area, began a volume at 20:10 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 |
|---|---|---|---|
| Apr 17, 12:55 PM MDT | NON-TSTM WND GST 58 | 3 Wsw Sterling, CO | AWOS STATION KSTK STERLING. |
| Apr 17, 2:23 PM MDT | NON-TSTM WND GST 56 | 2 S Cheesman Reservoir, CO | MESONET STATION CHRC2 CHEESMAN. |
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, 8.1 hours before the alert went out and 72 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
- 1664 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 312 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
452 WWUS85 KBOU 162008 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 208 PM MDT Sat Apr 16 2022 COZ240-241-245>247-170415- /O.UPG.KBOU.FW.A.0009.220417T1800Z-220418T0200Z/ /O.NEW.KBOU.FW.W.0013.220417T1800Z-220418T0200Z/ 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 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- 208 PM MDT Sat Apr 16 2022 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 240, 241, 245-247... 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 8 PM MDT Sunday. The Fire Weather Watch is no longer in effect. * Affected Area...Fire Weather Zones 240, 241, 245, 246 and 247. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 12 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. 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. && $$ COZ242>244-248>251-170415- /O.CON.KBOU.FW.A.0009.220417T1800Z-220418T0200Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Washington County-Sedgwick County-Phillips County- 208 PM MDT Sat Apr 16 2022 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 242-244 AND 248-251... * Affected Area...Fire Weather Zones 242, 243, 244, 248, 249, 250 and 251. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 20 to 30 mph with gusts up to 50 mph. * Relative Humidity...As low as 18 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
4 follow-up statements
484 WWUS85 KBOU 170228 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 828 PM MDT Sat Apr 16 2022 COZ239-171030- /O.EXA.KBOU.FW.W.0013.220417T1800Z-220418T0200Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- 828 PM MDT Sat Apr 16 2022 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 239... 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 8 PM MDT Sunday. * Affected Area...Fire Weather Zone 239. * Timing...Sunday, 12 PM to 8 PM. * Winds...West 20 to 30 mph with gusts up to 45 mph. * Relative Humidity...As low as 15 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. 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. && $$ COZ240-241-245>247-171030- /O.CON.KBOU.FW.W.0013.220417T1800Z-220418T0200Z/ North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- 828 PM MDT Sat Apr 16 2022 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 240, 241, 245-247... * Affected Area...Fire Weather Zones 240, 241, 245, 246 and 247. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 14 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ242>244-248>251-171030- /O.CON.KBOU.FW.A.0009.220417T1800Z-220418T0200Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Washington County-Sedgwick County-Phillips County- 828 PM MDT Sat Apr 16 2022 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 242-244 AND 248-251... * Affected Area...Fire Weather Zones 242, 243, 244, 248, 249, 250 and 251. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 20 to 30 mph with gusts up to 50 mph. * Relative Humidity...As low as 17 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
770 WWUS85 KBOU 170937 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 337 AM MDT Sun Apr 17 2022 COZ242>244-248>251-172100- /O.UPG.KBOU.FW.A.0009.220417T1800Z-220418T0200Z/ /O.EXA.KBOU.FW.W.0013.220417T1800Z-220418T0200Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Washington County-Sedgwick County-Phillips County- 337 AM MDT Sun Apr 17 2022 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF THE PLAINS OF NORTHEAST COLORADO... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon today to 8 PM MDT this evening. The Fire Weather Watch is no longer in effect. * Affected Area...Fire Weather Zones 242, 243, 244, 248, 249, 250 and 251. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 20 to 30 mph with gusts up to 45 mph. * Relative Humidity...As low as 17 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ239>241-245>247-172100- /O.CON.KBOU.FW.W.0013.220417T1800Z-220418T0200Z/ 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 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- 337 AM MDT Sun Apr 17 2022 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE INTERSTATE 25 CORRIDOR AND THE PALMER DIVIDE. * Affected Area...Fire Weather Zones 239, 240, 241, 245, 246 and 247. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 14 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. 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. && $$
337 WWUS85 KBOU 172010 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 210 PM MDT Sun Apr 17 2022 ...RED FLAG WARNING IN EFFECT THROUGH 8 PM MDT THIS EVENING FOR MOST OF THE PLAINS OF NORTHEAST COLORADO... .The National Weather Service in Denver is continuing a Red Flag Warning for wind and low relative humidity through 8 PM MDT this evening for most of the Colorado northeast plains. COZ239>251-180200- /O.CON.KBOU.FW.W.0013.000000T0000Z-220418T0200Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Logan County-Washington County-Sedgwick County-Phillips County- 210 PM MDT Sun Apr 17 2022 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF THE PLAINS OF NORTHEAST COLORADO... * Affected Area...Fire Weather Zones 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250 and 251. * Timing...Sunday, 12 PM to 8 PM. * Winds...Northwest 15 to 25 mph with gusts up to 45 mph. * Relative Humidity...As low as 18 percent. * Impacts...Any fire that develops will have the potential to spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
009 WWUS85 KBOU 180154 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 754 PM MDT Sun Apr 17 2022 COZ239>251-180300- /O.EXP.KBOU.FW.W.0013.000000T0000Z-220418T0200Z/ 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- 754 PM MDT Sun Apr 17 2022 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF THE PLAINS OF NORTHEAST COLORADO... Wind speeds are decreasing this evening and relative humidity is increasing so critical fire weather conditions will no longer exist. $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 4:41 AM MDT | Fire Weather Watch | BOU | Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 7 more | 23 hr |
Nearby
Red Flag Warnings in Colorado, 2022Every red flag warning in 2022
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.