Alert archive / Wyoming / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 124, NWS Cheyenne, WY

June 26, 2019Niobrara County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 26, 2019, 6:13 PM MDT for Niobrara County, Wyoming. It was in force for 47 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 26, 2019, 6:13 PM MDT (00:13 UTC)
Expired
Jun 26, 2019, 7:00 PM MDT
In force
47 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Niobrara County, WY

The radar

The Rapid City radar (KUDX), 178 km from the middle of the area, began a volume at 00:16 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 26, 4:37 PM MDTSevere Thunderstorm WatchSPC6 hr

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 26, 5:35 PM MDT, 38 minutes earlier.

Area forecast discussion, Jun 26, 5:35 PM MDT, 38 minutes before
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Hazardous weather outlook, Jun 26, 4:59 PM MDT, 1 hour 14 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
459 PM MDT Wed Jun 26 2019

WYZ101-103>107-109>118-272300-
Converse County Lower Elevations-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte 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-
459 PM MDT Wed Jun 26 2019

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

.DAY ONE...TONIGHT

Isolated thunderstorms may develop late this afternoon and early
evening. Severe weather is not expected.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Warm temperatures and snow melt will continue with increased
river flows over the next few days, however the probability for
widespread hazardous weather is low.

.Spotter information statement...

Spotter activation will not be required.

NEZ002-003-019>021-054-055-095-096-WYZ102-108-119-272300-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Niobrara County-Goshen County-
East Laramie County-
459 PM MDT Wed Jun 26 2019

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

.DAY ONE...TONIGHT

Scattered strong to severe thunderstorms will develop late this
afternoon and continue through late evening east of Interstate
25. Strong instability and wind shear will favor supercells
capable of very large hail, damaging winds and possibly a tornado
or two across the western Nebraska Panhandle and far eastern
Wyoming. A Severe Thunderstorm Watch is in effect until 11 PM MDT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

The probability for widespread hazardous weather is low.

.Spotter information statement...

Spotter activation may be required through this evening east of a
line from Lusk to Pine Bluffs.

In the hours before

Special weather statement, Jun 26, 5:03 PM MDT, 1 hour 10 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
503 PM MDT Wed Jun 26 2019

NEZ019-096-262345-
Scotts Bluff NE-South Sioux NE-
503 PM MDT Wed Jun 26 2019

...SIGNIFICANT WEATHER ADVISORY FOR SCOTTS BLUFF AND SOUTH CENTRAL
SIOUX COUNTIES UNTIL 545 PM MDT...

At 502 PM MDT, Doppler radar was tracking a strong thunderstorm over
Stegall, or 15 miles southeast of Torrington, moving east at 25 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Scottsbluff, Gering, Mitchell, Terrytown, Morrill, Minatare, Lyman,
Lake Minatare Campground, Stegall, Scotts Bluff National Monument,
Hubbard Hill, Scottsbluff Airport, Lake Minatare, Lake Alice, Melbeta
and Henry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Severe Thunderstorm Watch remains in effect until 1100 PM MDT for
the Panhandle of Nebraska.

LAT...LON 4171 10405 4200 10405 4215 10353 4179 10337
TIME...MOT...LOC 2302Z 251DEG 24KT 4190 10398

Lyons
Local storm report, Jun 26, 5:29 PM MDT, 44 minutes before
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Special weather statement, Jun 26, 5:40 PM MDT, 33 minutes before
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Special weather statement, Jun 26, 5:46 PM MDT, 27 minutes before
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Local storm report, Jun 26, 5:55 PM MDT, 18 minutes before
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Local storm report, Jun 26, 5:58 PM MDT, 15 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 6:06 PM MDTSpecial Weather StatementCYSNiobrara39 min
Jun 26, 6:31 PM MDTSevere Thunderstorm WarningCYSNiobrara26 min
Jun 26, 6:17 PM MDTSpecial Weather StatementCYSScotts Bluff43 min
Jun 26, 6:58 PM MDTSpecial Weather StatementCYSBox Butte47 min
Jun 26, 7:24 PM MDTSevere Thunderstorm WarningCYSBox Butte, Morrill51 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2019Every severe thunderstorm warning in 2019

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.