Alert archive / Wyoming / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 142, NWS Cheyenne, WY

June 26, 2023Niobrara County, Wyoming; Sioux County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 26, 2023, 4:47 AM MDT for Niobrara County, Wyoming; Sioux County, Nebraska. It was in force for 43 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, 2023, 4:47 AM MDT (10:47 UTC)
Expired
Jun 26, 2023, 5:30 AM MDT
In force
43 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Sioux County, NE, Niobrara County, WY

The radar

The Rapid City radar (KUDX), 183 km from the middle of the area, began a volume at 10:46 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 25, 5:43 PM MDT, 11 hours 4 minutes earlier.

Area forecast discussion, Jun 25, 5:43 PM MDT, 11 hours 4 minutes before
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Hazardous weather outlook, Jun 26, 3:30 AM MDT, 1 hour 17 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
330 AM MDT Mon Jun 26 2023

NEZ019>021-054-055-WYZ103>119-270930-
Scotts Bluff County-Banner County-Morrill County-Kimball County-
Cheyenne 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-
330 AM MDT Mon Jun 26 2023

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

.DAY ONE...TODAY AND TONIGHT

Showers and thunderstorms are not expected today. Gusty winds will
be possible across Carbon county and southern Albany county.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Daily chances for afternoon showers and thunderstorms begins on
Tuesday and are expected to continue through Friday. Some storms on
Tuesday and Wednesday may be severe with, strong winds and large
hail being the primary hazards.

.Spotter information statement...

Spotter activation will not be needed.

NEZ002-003-095-096-WYZ101-102-270930-
Dawes County-Box Butte County-Northern Sioux County-
Southern Sioux County-Converse County Lower Elevations-
Niobrara County-
330 AM MDT Mon Jun 26 2023

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

.DAY ONE...TODAY AND TONIGHT

A few isolated thunderstorms are possible this afternoon and evening
for northern portions of southeast Wyoming and northern portions of
the Nebraska Panhandle. Some of these storms may be severe. Large
hail, potentially greater than 2 inches, and strong winds are the
primary threats.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Daily chances for afternoon showers and thunderstorms are expected
to continue through Friday. Some storms on Tuesday and Wednesday may
be severe, with strong winds and large hail being the primary
hazards.

.Spotter information statement...

Spotter activation will not be needed.

In the hours before

Special weather statement, Jun 26, 2:07 AM MDT, 2 hours 40 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
207 AM MDT Mon Jun 26 2023

WYZ101-260845-
Converse County Lower Elevations WY-
207 AM MDT Mon Jun 26 2023

...Strong thunderstorms will impact portions of northwestern Converse
County through 245 AM MDT...

At 207 AM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles east of Teapot Rock to 10 miles east of
Antelope Hills. Movement was east at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Rolling Hills and Rolling Hills Estates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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.

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 4348 10577 4285 10563 4295 10608 4338 10607
TIME...MOT...LOC 0807Z 275DEG 24KT 4323 10614 4304 10611

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

Hammer
Special weather statement, Jun 26, 2:58 AM MDT, 1 hour 49 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
258 AM MDT Mon Jun 26 2023

WYZ101-260930-
Converse County Lower Elevations WY-
258 AM MDT Mon Jun 26 2023

...Strong thunderstorms will impact portions of northwestern Converse
County through 330 AM MDT...

At 258 AM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 20 miles south of Pine Tree Junction to 11
miles northeast of Rolling Hills. Movement was east at 30 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

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

These storms will remain over mainly rural areas of northwestern
Converse County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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.

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 4304 10539 4301 10584 4334 10587 4350 10554
      4350 10543
TIME...MOT...LOC 0858Z 254DEG 26KT 4332 10570 4305 10575

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Hammer
Special weather statement, Jun 26, 3:06 AM MDT, 1 hour 41 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
306 AM MDT Mon Jun 26 2023

WYZ102-260930-
Niobrara County WY-
306 AM MDT Mon Jun 26 2023

...A strong thunderstorm will impact portions of central Niobrara
County through 330 AM MDT...

At 306 AM MDT, Doppler radar was tracking a strong thunderstorm 12
miles east of Lance Creek, or 19 miles north of Lusk, moving north at
15 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

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

This storm will remain over mainly rural areas of central Niobrara
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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.

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 4294 10433 4300 10455 4321 10450 4314 10419
TIME...MOT...LOC 0906Z 201DEG 11KT 4304 10441

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Hammer
Special weather statement, Jun 26, 3:28 AM MDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
328 AM MDT Mon Jun 26 2023

NEZ095-WYZ102-261000-
North Sioux NE-Niobrara County WY-
328 AM MDT Mon Jun 26 2023

...A strong thunderstorm will impact portions of northwestern Sioux
and east central Niobrara Counties through 400 AM MDT...

At 328 AM MDT, Doppler radar was tracking a strong thunderstorm 13
miles south of Redbird, or 23 miles southwest of Edgemont, moving
east at 25 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

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

This storm will remain over mainly rural areas of northwestern Sioux
and east central Niobrara Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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.

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 4300 10405 4300 10391 4292 10390 4296 10426
      4314 10428 4319 10405
TIME...MOT...LOC 0928Z 266DEG 24KT 4306 10417

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Hammer
Special weather statement, Jun 26, 3:30 AM MDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
330 AM MDT Mon Jun 26 2023

WYZ102-261000-
Niobrara County WY-
330 AM MDT Mon Jun 26 2023

...Strong thunderstorms will impact portions of northwestern Niobrara
and northeastern Converse Counties through 400 AM MDT...

At 330 AM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 10 miles southeast of Dull Center to 13 miles
north of Lance Creek. Movement was northeast at 25 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

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

These storms will remain over mainly rural areas of northwestern
Niobrara and northeastern Converse Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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.

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 4336 10427 4315 10461 4317 10490 4336 10490
      4344 10482
TIME...MOT...LOC 0930Z 215DEG 20KT 4328 10485 4324 10461

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Hammer

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 2:07 AM MDTSpecial Weather StatementCYSConverse38 min
Jun 26, 2:58 AM MDTSpecial Weather StatementCYSConverse32 min
Jun 26, 3:06 AM MDTSpecial Weather StatementCYSNiobrara24 min
Jun 26, 3:28 AM MDTSpecial Weather StatementCYSNiobrara32 min
Jun 26, 3:30 AM MDTSpecial Weather StatementCYSNiobrara30 min
Jun 26, 3:45 AM MDTSevere Thunderstorm WarningCYSNiobrara19 min
Jun 26, 4:58 PM MDTSevere Thunderstorm WarningCYSLaramie, Platte47 min
Jun 26, 5:35 PM MDTSevere Thunderstorm Warning Considerable damage threatCYSLaramie, Platte25 min
Jun 26, 5:32 AM MDTSevere Thunderstorm WarningCYSDawes43 min
Jun 26, 5:40 AM MDTSevere Thunderstorm WarningCYSSioux50 min
Jun 26, 6:14 AM MDTSevere Thunderstorm Warning Considerable damage threatCYSDawes46 min
Jun 26, 6:54 AM MDTSevere Thunderstorm WarningCYSDawes51 min
Jun 26, 7:46 AM MDTSpecial Weather StatementCYSBox Butte44 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2023Severe Thunderstorm Warnings in Nebraska, 2023Every 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; radar from the NEXRAD Level II archive.