Alert archive / Wyoming / Winter Storm Warnings in 2024

Winter Storm Warning 9, NWS Cheyenne, WY

February 25, 2024Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Feb 25, 2024, 1:18 PM MST for Albany County, Carbon County, Wyoming. It took effect at Feb 26, 2024, 8:00 AM MST. It was in force for 34 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: Feb 25, 2024, 1:18 PM MST (20:18 UTC)
In effect from: Feb 26, 2024, 8:00 AM MST
Expired: Feb 27, 2024, 6:00 PM MST
In force: 34 hr
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY

The radar

The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 20:19 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

Grand Junction, CO (KGJT), launched 12:00Z, 8.3 hours before the alert went out and 337 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: 2313 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 69 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 Feb 25, 9:55 AM MST, 3 hours 23 minutes earlier.

Area forecast discussion, Feb 25, 9:55 AM MST, 3 hours 23 minutes before

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Hazardous weather outlook, Feb 25, 3:16 AM MST, 10 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service Cheyenne WY
316 AM MST Sun Feb 25 2024

NEZ002-003-019>021-054-055-095-096-WYZ101>119-261030-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
316 AM MST Sun Feb 25 2024

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Long duration, widespread high wind event continues today with
High Wind Warnings extended through Monday afternoon.

Increased fire weather threat with Red Flag Warnings in
effect for the southern Nebraska Panhandle Sunday afternoon.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

Colder temperatures and increasing snow potential for Monday
night and Tuesday with 1-2 feet of snow possible in the Snowy and
Sierra Madre Ranges.

.Spotter information statement...

Spotter activation will not be needed.

In the hours before

Local storm report, Feb 25, 8:11 AM MST, 5 hours 7 minutes before

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Local storm report, Feb 25, 9:11 AM MST, 4 hours 7 minutes before

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Local storm report, Feb 25, 10:17 AM MST, 3 hours 1 minute before

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Local storm report, Feb 25, 12:14 PM MST, 1 hour 4 minutes before

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Local storm report, Feb 25, 1:09 PM MST, 9 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
Feb 25, 1:48 AM MST	Winter Storm Watch	CYS	Albany, Carbon	12 hr
Feb 25, 2:07 AM MST	High Wind Warning	CYS	Laramie	40 hr
Feb 25, 1:18 PM MST	Winter Storm Watch	CYS	Albany, Carbon	24 hr
Feb 25, 1:38 AM MST	Red Flag Warning	CYS	Banner, Cheyenne, Kimball, Morrill, Scotts Bluff, Sioux	16 hr

Nearby

Winter Storm Warnings in Wyoming, 2024 Every winter storm warning in 2024

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.