Alert archive / Wyoming / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 96, NWS Cheyenne, WY

July 15, 2024Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 15, 2024, 6:42 PM MDT for Laramie County, Wyoming. It was in force for 33 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: Jul 15, 2024, 6:42 PM MDT (00:42 UTC)
Expired: Jul 15, 2024, 7:15 PM MDT
In force: 33 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 20 km from the middle of the area, began a volume at 00:42 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.

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 Jul 15, 2:33 PM MDT, 4 hours 9 minutes earlier.

Area forecast discussion, Jul 15, 2:33 PM MDT, 4 hours 9 minutes before

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Hazardous weather outlook, Jul 15, 3:26 AM MDT, 15 hours 16 minutes before

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In the hours before

Local storm report, Jul 15, 3:53 PM MDT, 2 hours 49 minutes before

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Special weather statement, Jul 15, 4:01 PM MDT, 2 hours 41 minutes before

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Special weather statement, Jul 15, 4:46 PM MDT, 1 hour 56 minutes before

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Special weather statement, Jul 15, 5:02 PM MDT, 1 hour 40 minutes before

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Special weather statement, Jul 15, 5:13 PM MDT, 1 hour 29 minutes before

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Special weather statement, Jul 15, 5:20 PM MDT, 1 hour 22 minutes before

Special Weather Statement
National Weather Service Cheyenne WY
520 PM MDT Mon Jul 15 2024

NEZ002-003-019-021-095-096-160000-
Scotts Bluff NE-Box Butte NE-Dawes NE-North Sioux NE-Morrill NE-
South Sioux NE-
520 PM MDT Mon Jul 15 2024

...STRONG THUNDERSTORMS WILL IMPACT BOX BUTTE...NORTHEASTERN SCOTTS
BLUFF...NORTHERN MORRILL...SOUTHEASTERN DAWES AND SOUTHEASTERN SIOUX
COUNTIES THROUGH 600 PM MDT...

At 520 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles west of Hay Springs to near Box Butte
County Fairgrounds to 6 miles north of Lake Alice. Movement was east
at 35 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Alliance, Hemingford, Roberts Trailhead Campground, Box Butte
Campground, Red Cloud Campground, Box Butte Reservoir, Angora,
Kilpatrick Lake, Chadron State Park, Box Butte County Fairgrounds,
Berea, Flahertys Corner, Alliance Municipal Airport, Wild Horse
Butte, Marsland, Box Butte Dam, and Chadron State Park Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Cheyenne.

&&

LAT...LON 4184 10331 4220 10383 4293 10280 4210 10274
      4209 10271 4201 10270 4200 10267 4182 10268
TIME...MOT...LOC 2320Z 287DEG 29KT 4264 10284 4235 10308 4208 10357

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Hammer

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 6:25 PM MDT	Special Weather Statement	CYS	Laramie, Platte	50 min
Jul 15, 7:03 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Goshen, Laramie, Platte	33 min
Jul 15, 7:12 PM MDT	Special Weather Statement	CYS	Laramie	48 min
Jul 15, 6:04 PM MDT	Special Weather Statement	CYS	Cheyenne	26 min
Jul 15, 7:39 PM MDT	Special Weather Statement	CYS	Banner	36 min
Jul 15, 8:06 PM MDT	Special Weather Statement	CYS	Banner, Scotts Bluff	24 min
Jul 15, 8:40 PM MDT	Special Weather Statement	CYS	Box Butte, Morrill	65 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2024 Every severe thunderstorm 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; radar from the NEXRAD Level II archive.