Alert archive / Wyoming / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 29, NWS Cheyenne, WY

May 25, 2023Albany County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at May 25, 2023, 6:00 PM MDT for Albany County, Wyoming. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 25, 2023, 6:00 PM MDT (00:00 UTC)
Expired: May 25, 2023, 6:45 PM MDT
In force: 45 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Albany County, WY

The radar

The Cheyenne radar (KCYS), 95 km from the middle of the area, began a volume at 00:04 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 00:00Z, 0.0 hours before the alert went out and 366 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: 4580 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 46 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 severe thunderstorm 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 severe thunderstorm warning went out at May 25, 5:42 PM MDT, 18 minutes earlier.

Area forecast discussion, May 25, 5:42 PM MDT, 18 minutes before

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Hazardous weather outlook, May 25, 4:10 AM MDT, 13 hours 50 minutes before

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In the hours before

Special weather statement, May 25, 2:03 PM MDT, 3 hours 57 minutes before

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Special weather statement, May 25, 2:39 PM MDT, 3 hours 21 minutes before

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Special weather statement, May 25, 4:28 PM MDT, 1 hour 32 minutes before

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Special weather statement, May 25, 4:58 PM MDT, 1 hour 2 minutes before

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Special weather statement, May 25, 5:49 PM MDT, 11 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
May 25, 6:48 PM MDT	Special Weather Statement	CYS	Albany	57 min
May 25, 7:07 PM MDT	Special Weather Statement	CYS	Laramie	38 min
May 25, 7:27 PM MDT	Special Weather Statement	CYS	Platte	48 min
May 25, 7:47 PM MDT	Special Weather Statement	CYS	Albany	58 min
May 25, 8:20 PM MDT	Special Weather Statement	CYS	Goshen, Platte	70 min
May 25, 9:57 PM MDT	Special Weather Statement	CYS	Laramie	48 min
May 25, 10:47 PM MDT	Special Weather Statement	CYS	Goshen	73 min
May 26, 12:43 PM MDT	Special Weather Statement	CYS	Carbon	32 min
May 26, 1:42 PM MDT	Special Weather Statement	CYS		33 min
May 26, 2:39 PM MDT	Special Weather Statement	CYS		36 min
May 26, 3:04 PM MDT	Special Weather Statement	CYS	Laramie	26 min
May 26, 3:25 PM MDT	Special Weather Statement	CYS	Converse	65 min
May 26, 3:29 PM MDT	Special Weather Statement	CYS		46 min
May 26, 3:33 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	42 min
May 26, 4:08 PM MDT	Special Weather Statement	CYS	Converse	52 min
May 26, 4:17 PM MDT	Special Weather Statement	CYS	Laramie	43 min
May 26, 4:49 PM MDT	Special Weather Statement	CYS	Platte	56 min
May 26, 5:09 PM MDT	Special Weather Statement	CYS	Converse	51 min
May 26, 5:27 PM MDT	Severe Thunderstorm Warning	CYS	Converse, Goshen, Niobrara, Platte	48 min
May 25, 11:49 PM MDT	Special Weather Statement	CYS	Scotts Bluff	26 min
May 26, 5:37 PM MDT	Special Weather Statement	CYS	Banner, Kimball, Scotts Bluff	38 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2023 Every severe thunderstorm warning 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.