Alert archive / Colorado / Wind Chill Advisories in 2023
Wind Chill Advisory 3, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this wind chill advisory at Feb 21, 2023, 2:53 PM MST for 16 counties in Colorado. It took effect at Feb 22, 2023, 2:45 PM MST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Feb 21, 2023, 2:53 PM MST (21:53 UTC)
- In effect from
- Feb 22, 2023, 2:45 PM MST
- Expired
- Feb 23, 2023, 9:00 AM MST
- In force
- 18 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, Larimer 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), 42 km from the middle of the area, began a volume at 21:54 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
Dodge City, (KDDC), launched 12:00Z, 9.9 hours before the alert went out and 445 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
- 2596 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 295 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this wind chill advisory went out at Feb 21, 11:46 AM MST, 3 hours 7 minutes earlier.
Area forecast discussion, Feb 21, 11:46 AM MST, 3 hours 7 minutes before
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</html>Hazardous weather outlook, Feb 21, 11:22 AM MST, 3 hours 31 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1122 AM MST Tue Feb 21 2023 COZ030>051-221830- Jackson County Below 9000 Feet- West Jackson and West Grand Counties Above 9000 Feet- Grand and Summit Counties Below 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Central and Southeast Park County- Larimer County Below 6000 Feet/Northwest Weld County- 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- 1122 AM MST Tue Feb 21 2023 ...SNOW AND COLDER WEATHER MOVING IN... This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight West winds at 20 to 40 mph will continue over the mountains and foothills this afternoon. Gusts up to 60 mph can be expected above timberline in the Front Range. Light snow showers will develop over the mountains this afternoon, then more widespread snow will develop late tonight. Snow will spread from the Wyoming border south to about Denver during the late night hours, with some accumulation and travel impact beginning along the northern I-25 corridor before morning. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A winter storm will affect the area through Wednesday evening. Expect heavy snow in the northern mountains, the northern foothills, and northern I-25 corridor. Expect light to moderate snow across the plains. The Wednesday morning and evening commutes will be impacted especially farther north. Temperatures will drop below zero across the entire forecast area Thursday morning. Wind chills will be between -15 to -25 so it will be wise to limit time outdoors. Thursday into this weekend, temperatures will increase for all areas while the plains will dry out. The mountains will continue to see a daily chance of snow. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight. Any snowfall reports will be appreciated. Gimmestad/Danielson
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 3:50 AM MST | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 12 more | 49 hr |
Nearby
Wind Chill Advisories in Colorado, 2023Every wind chill advisory in 2023
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.