Alert archive / Wyoming / Winter Storm Warnings in 2022

Winter Storm Warning 1, NWS Cheyenne, WY

January 4, 20226 counties in Wyoming; 5 counties in Nebraska

NWS Cheyenne, WY issued this winter storm warning at Jan 4, 2022, 4:12 AM MST for 6 counties in Wyoming; 5 counties in Nebraska. It took effect at Jan 4, 2022, 11:00 AM MST. It was in force for 64 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: Jan 4, 2022, 4:12 AM MST (11:12 UTC)
In effect from: Jan 4, 2022, 11:00 AM MST
Expired: Jan 7, 2022, 2:30 AM MST
In force: 64 hr
Issued by: NWS Cheyenne, WY

Counties Banner County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 73 km from the middle of the area, began a volume at 11:14 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

Rapid City, SD (KUNR), launched 00:00Z, 11.2 hours before the alert went out and 288 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2593 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Jan 3, 10:09 PM MST, 6 hours 3 minutes earlier.

Area forecast discussion, Jan 3, 10:09 PM MST, 6 hours 3 minutes before

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Hazardous weather outlook, Jan 3, 2:48 PM MST, 13 hours 24 minutes before

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In the hours before

Local storm report, Jan 4, 2:40 AM MST, 1 hour 32 minutes before

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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 4, 2:20 PM MST	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	60 hr

Nearby

Winter Storm Warnings in Wyoming, 2022 Winter Storm Warnings in Nebraska, 2022 Every 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.