Alert archive / Nebraska / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 76, NWS Cheyenne, WY

July 5, 2022Sioux County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 5, 2022, 5:56 PM MDT for Sioux County, Nebraska. It was in force for 64 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 5, 2022, 5:56 PM MDT (23:56 UTC)
Expired: Jul 5, 2022, 7:00 PM MDT
In force: 64 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Tornado: Possible
Damage threat: Considerable
Hail: 2.5 in
Wind: 70.0 mph

County Sioux County, NE

The radar

The Cheyenne radar (KCYS), 172 km from the middle of the area, began a volume at 23:57 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

Rapid City, SD (KUNR), launched 12:00Z, 11.9 hours before the alert went out and 190 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: 1132 J/kg
Mixed-layer CIN: -322 J/kg
Mixed-layer LCL: 1435 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Jul 5, 5:25 PM MDT, 31 minutes earlier.

Area forecast discussion, Jul 5, 5:25 PM MDT, 31 minutes before

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Hazardous weather outlook, Jul 5, 4:37 AM MDT, 13 hours 19 minutes before

Hazardous Weather Outlook
National Weather Service Cheyenne WY
437 AM MDT Tue Jul 5 2022

NEZ054-WYZ101-103>107-109>119-061045-
Kimball County-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-East Laramie County-
437 AM MDT Tue Jul 5 2022

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

.DAY ONE...TODAY AND TONIGHT

There is a chance for isolated strong thunderstorms this
afternoon and evening. Main hazards include strong, gusty winds
up to 60 mph and small hail. Moderate to heavy rain is also
possible.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

There is a chance for isolated strong thunderstorms on Wednesday.
Main hazards include strong, gusty winds, small hail, and heavy
rain. Afternoon thunderstorm chances continue through Friday.

.Spotter information statement...

Spotter activation will not be needed.

NEZ002-003-019>021-055-095-096-WYZ102-108-061045-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Cheyenne County-Northern Sioux County-
Southern Sioux County-Niobrara County-Goshen County-
437 AM MDT Tue Jul 5 2022

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

.DAY ONE...TODAY AND TONIGHT

There is a marginal to slight risk of isolated strong to
potentially severe thunderstorms this afternoon and evening. Main
hazards include strong, gusty winds over 60 mph and hail up to
one inch in diameter. Heavy rain with ponding of water in urban
areas is also possible.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

There is a marginal to slight risk of isolated strong to
potentially severe thunderstorms on Wednesday. Main hazards
include strong winds, hail, and heavy rain. Afternoon
thunderstorm chances continue through Friday.

.Spotter information statement...

Spotter activation may be needed later this afternoon.

In the hours before

Special weather statement, Jul 5, 4:30 PM MDT, 1 hour 26 minutes before

Special Weather Statement
National Weather Service Cheyenne WY
430 PM MDT Tue Jul 5 2022

NEZ021-052300-
Morrill NE-
430 PM MDT Tue Jul 5 2022

...A strong thunderstorm will impact portions of southeastern Morrill
County through 500 PM MDT...

At 428 PM MDT, Doppler radar was tracking a strong thunderstorm 8
miles east of The Intersection Of Highway 385 And 92, or 29 miles
northwest of Oshkosh, moving north at 10 mph.

HAZARD...Winds in excess of 40 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...
The Intersection Of Highway 385 And 92 and Broadwater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4151 10295 4179 10310 4183 10268 4176 10267
      4174 10264 4147 10264
TIME...MOT...LOC 2228Z 166DEG 9KT 4164 10283

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Natoli

Local storm report, Jul 5, 4:44 PM MDT, 1 hour 12 minutes before

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Local storm report, Jul 5, 4:53 PM MDT, 1 hour 3 minutes before

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Special weather statement, Jul 5, 5:13 PM MDT, 43 minutes before

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Local storm report, Jul 5, 5:25 PM MDT, 31 minutes before

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Local storm report, Jul 5, 5:56 PM MDT, 0 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
Jul 5, 11:52 AM MDT	Areal Flood Advisory	CYS	Albany, Carbon	3 hr
Jul 5, 12:28 PM MDT	Special Weather Statement	CYS	Laramie	32 min
Jul 5, 1:44 PM MDT	Special Weather Statement	CYS	Converse	46 min
Jul 5, 2:29 PM MDT	Special Weather Statement	CYS	Platte	46 min
Jul 5, 2:37 PM MDT	Severe Thunderstorm Warning	CYS	Converse, Niobrara, Platte	38 min
Jul 5, 3:08 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Converse, Goshen, Niobrara, Platte	67 min
Jul 5, 3:56 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Niobrara, Platte	49 min
Jul 5, 3:57 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Niobrara, Platte	48 min
Jul 5, 4:30 PM MDT	Severe Thunderstorm Warning	CYS	Goshen	45 min
Jul 5, 4:44 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Goshen	61 min
Jul 4, 6:12 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	16 min
Jul 5, 1:24 PM MDT	Special Weather Statement	CYS	Dawes	36 min
Jul 5, 1:59 PM MDT	Special Weather Statement	CYS	Dawes	46 min
Jul 5, 4:07 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne, Kimball, Morrill	38 min
Jul 5, 4:30 PM MDT	Special Weather Statement	CYS	Morrill	30 min
Jul 5, 4:37 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	38 min
Jul 5, 4:44 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Cheyenne, Morrill	31 min
Jul 5, 5:13 PM MDT	Special Weather Statement	CYS	Cheyenne, Morrill	47 min
Jul 5, 5:37 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Sioux	53 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2022 Every severe thunderstorm warning in 2022

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.