Alert archive / Colorado / Winter Storm Warnings in 2022
Winter Storm Warning 14, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Dec 29, 2022, 1:53 PM MST for Grand County, Jackson County, Colorado. It took effect at Dec 30, 2022, 6:00 PM MST. It was in force for 41 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 29, 2022, 1:53 PM MST (20:53 UTC)
- In effect from
- Dec 30, 2022, 6:00 PM MST
- Expired
- Jan 1, 2023, 11:00 AM MST
- In force
- 41 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Grand County, CO, Jackson County, CO
The radar
The Cheyenne radar (KCYS), 147 km from the middle of the area, began a volume at 20:53 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
Riverton, WY (KRIW), launched 12:00Z, 8.9 hours before the alert went out and 349 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
- 3470 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -74 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm warning 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 winter storm warning went out at Dec 29, 11:53 AM MST, 2 hours earlier.
Area forecast discussion, Dec 29, 11:53 AM MST, 2 hours before
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</html>Hazardous weather outlook, Dec 29, 11:58 AM MST, 1 hour 55 minutes before
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Local storm report, Dec 29, 9:02 AM MST, 4 hours 51 minutes before
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</html>Local storm report, Dec 29, 10:20 AM MST, 3 hours 33 minutes before
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</html>The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 7:33 PM MST | Winter Storm Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more | 10 hr |
Nearby
Winter Storm Warnings in Colorado, 2022Every winter storm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.