Alert archive / Wyoming / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 74, NWS Cheyenne, WY

June 30, 2024Goshen County, Platte County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 30, 2024, 3:17 PM MDT for Goshen County, Platte County, Wyoming. It was in force for 28 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: Jun 30, 2024, 3:17 PM MDT (21:17 UTC)
Expired: Jun 30, 2024, 3:45 PM MDT
In force: 28 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Goshen County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 107 km from the middle of the area, began a volume at 21:16 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 Jun 30, 3:01 PM MDT, 16 minutes earlier.

Area forecast discussion, Jun 30, 3:01 PM MDT, 16 minutes before

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Hazardous weather outlook, Jun 30, 7:19 AM MDT, 7 hours 58 minutes before

Hazardous Weather Outlook
National Weather Service Cheyenne WY
719 AM MDT Sun Jun 30 2024

NEZ002-003-019>021-054-055-095-096-WYZ101>119-011330-
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-
719 AM MDT Sun Jun 30 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

Showers and thunderstorms will develop late this morning and track
east through the afternoon and evening hours. A few of these
storms will be strong to marginally severe and contain strong
gusty winds and possibly large hail.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

Expect daily chances for afternoon and evening thunderstorms for
the upcoming work week...mainly east of Interstate 25.
Thunderstorm coverage should become more isolated by Tuesday and
Wednesday.

.Spotter information statement...

Spotter activation will not be needed.

In the hours before

Special weather statement, Jun 30, 2:08 PM MDT, 1 hour 9 minutes before

Special Weather Statement
National Weather Service Cheyenne WY
208 PM MDT Sun Jun 30 2024

WYZ106-107-117-118-302100-
East Platte County WY-
Central Laramie Range and Southwest Platte County WY-
Central Laramie County WY-South Laramie Range Foothills WY-
208 PM MDT Sun Jun 30 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN GOSHEN...
NORTHWESTERN LARAMIE AND SOUTHERN PLATTE COUNTIES THROUGH 300 PM
MDT...

At 207 PM MDT, Doppler radar was tracking a strong thunderstorm 13
miles east of Sybille Canyon, or 25 miles south of Wheatland, moving
northeast at 35 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Chugwater and Slater.

This includes Interstate 25 in Wyoming between mile markers 42 and
70.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4155 10516 4169 10527 4202 10481 4178 10465
      4159 10465
TIME...MOT...LOC 2007Z 233DEG 31KT 4170 10513

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Natoli

Special weather statement, Jun 30, 2:38 PM MDT, 39 minutes before

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Local storm report, Jun 30, 2:46 PM MDT, 31 minutes before

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Local storm report, Jun 30, 2:52 PM MDT, 25 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
Jun 29, 7:21 PM MDT	Special Weather Statement	CYS	Carbon	39 min
Jun 29, 10:05 PM MDT	Special Weather Statement	CYS	Carbon	40 min
Jun 30, 2:08 PM MDT	Special Weather Statement	CYS	Platte	52 min
Jun 30, 2:38 PM MDT	Special Weather Statement	CYS	Laramie	52 min
Jun 30, 2:42 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Laramie, Platte	37 min
Jun 30, 5:08 PM MDT	Special Weather Statement	CYS	Niobrara	37 min
Jun 30, 5:40 PM MDT	Severe Thunderstorm Warning	CYS	Niobrara	20 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.