Alert archive / Colorado / High Wind Warnings in 2021
High Wind Warning 11, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Dec 26, 2021, 3:08 AM MST for 6 counties in Colorado. It took effect at Dec 26, 2021, 11:00 AM MST. 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
- Dec 26, 2021, 3:08 AM MST (10:08 UTC)
- In effect from
- Dec 26, 2021, 11:00 AM MST
- Expired
- Dec 26, 2021, 5:00 PM MST
- In force
- 6 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 50 km from the middle of the area, began a volume at 10:10 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.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 10.1 hours before the alert went out and 82 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
- 2917 m above ground
- 0-6 km bulk shear
- 107 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
157 WWUS75 KBOU 261008 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 308 AM MST Sun Dec 26 2021 COZ041-045>047-049-270000- /O.NEW.KBOU.HW.W.0011.211226T1800Z-211227T0000Z/ 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-Washington County- Including the cities of Hugo, Castle Rock, Cope, Punkin Center, Elbert, Karval, Bennett, Matheson, Otis, Limon, Kiowa, Larkspur, Deer Trail, Agate, Byers, Fondis, Forder, Last Chance, Kutch, Leader, and Akron 308 AM MST Sun Dec 26 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST THIS AFTERNOON... * WHAT...Southwest winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...North and Northeast Elbert County Below 6000 Feet/North Lincoln County, Southeast Elbert County Below 6000 Feet/South Lincoln County, Central and East Adams and Arapahoe Counties, Elbert/Central and East Douglas Counties Above 6000 Feet and Washington County Counties. * WHEN...From 11 AM this morning to 5 PM MST this afternoon. * IMPACTS...Blowing dust will reduce visibility, especially near open fields. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
1 follow-up statement
738 WWUS75 KBOU 270005 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 505 PM MST Sun Dec 26 2021 COZ041-045>047-049-270115- /O.EXP.KBOU.HW.W.0011.000000T0000Z-211227T0000Z/ Elbert/Central and East Douglas Counties Above 6000 Feet-Central and East Adams and Arapahoe Counties-North and Northeast Elbert County Below 6000 Feet/North Lincoln County-Southeast Elbert County Below 6000 Feet/South Lincoln County-Washington County- Including the cities of Hugo, Castle Rock, Cope, Punkin Center, Elbert, Karval, Bennett, Matheson, Otis, Limon, Kiowa, Larkspur, Deer Trail, Agate, Byers, Fondis, Forder, Last Chance, Kutch, Leader, and Akron 505 PM MST Sun Dec 26 2021 ...HIGH WIND WARNING HAS EXPIRED... The threat has ended. There can still be a few higher gusts up to 50 but expect a gradual decrease in the winds this evening. $$ For more information from the National Weather Service, visit https://weather.gov/bou Entrekin
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 26, 1:33 PM MST | Snow Squall Warning | BOU | Grand | 57 min |
Nearby
High Wind Warnings in Colorado, 2021Every high wind warning in 2021
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.