Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 215, NWS Cheyenne, WY

July 3, 2023Box Butte County, Dawes County, Morrill County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 3, 2023, 9:49 PM MDT for Box Butte County, Dawes County, Morrill County, Nebraska. It was in force for 41 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 3, 2023, 9:49 PM MDT (03:49 UTC)
Expired: Jul 3, 2023, 10:30 PM MDT
In force: 41 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Box Butte County, NE, Dawes County, NE, Morrill County, NE

The radar

The Cheyenne radar (KCYS), 186 km from the middle of the area, began a volume at 03:51 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.

Issued	Product	Office	Lasted
Jul 3, 6:44 PM MDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 3.8 hours before the alert went out and 206 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: 3225 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 1115 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.3

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 3, 9:48 PM MDT, 1 minute earlier.

Area forecast discussion, Jul 3, 9:48 PM MDT, 1 minute before

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Hazardous weather outlook, Jul 3, 5:12 AM MDT, 16 hours 37 minutes before

Hazardous Weather Outlook
National Weather Service Cheyenne WY
512 AM MDT Mon Jul 3 2023

NEZ019>021-054-055-WYZ103>119-041115-
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-
512 AM MDT Mon Jul 3 2023

This hazardous weather outlook is for the southern Nebraska
panhandle...south central Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Very warm and dry conditions are expected for most of Monday
before thunderstorms move back into the area late this afternoon
and this evening. Brief heavy rain and gusty winds may accompany
these thunderstorms through late this evening.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Thunderstorm coverage will increase for Tuesday with scattered to
numerous thunderstorms expected through the evening hours of
Independence Day. There is a chance some of these thunderstorms
may become severe Tuesday afternoon and evening, especially along
the Interstate corridor.

.Spotter information statement...

Spotter activation will not be needed today.

NEZ002-003-095-096-WYZ101-102-041115-
Dawes County-Box Butte County-Northern Sioux County-
Southern Sioux County-Converse County Lower Elevations-
Niobrara County-
512 AM MDT Mon Jul 3 2023

This hazardous weather outlook is for the northern Nebraska
panhandle and east central Wyoming.

.DAY ONE...TODAY AND TONIGHT

Very warm and dry conditions are expected for most of Monday
before thunderstorms move back into the area late this afternoon
and this evening. Brief heavy rain and gusty winds may accompany
these thunderstorms through late this evening.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Thunderstorm coverage will increase for Tuesday with scattered thunderstorms
expected possible through the late evening hours of Independence
Day.

.Spotter information statement...

Spotter activation will not be needed today.

In the hours before

Local storm report, Jul 3, 7:40 PM MDT, 2 hours 9 minutes before

Preliminary Local Storm Report
National Weather Service Cheyenne WY
740 PM MDT Mon Jul 3 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0736 PM     Tstm Wnd Gst     8 NNW Glendo            42.60N 105.10W
07/03/2023  M58 MPH          Platte             WY   Mesonet

            Mesonet station WY56 I25 Us26 Us87 - Platte
            Converse.

&&

Rubin

Local storm report, Jul 3, 8:15 PM MDT, 1 hour 34 minutes before

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Local storm report, Jul 3, 8:26 PM MDT, 1 hour 23 minutes before

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Local storm report, Jul 3, 8:31 PM MDT, 1 hour 18 minutes before

Preliminary Local Storm Report
National Weather Service Cheyenne WY
831 PM MDT Mon Jul 3 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0814 PM     Tstm Wnd Gst     Lusk                    42.76N 104.45W
07/03/2023  M80 MPH          Niobrara           WY   Emergency Mngr

            EM estimated winds of 70 to 80 MPH across
            the town of Lusk.

0814 PM     Tstm Wnd Dmg     Lusk                    42.76N 104.45W
07/03/2023                   Niobrara           WY   Emergency Mngr

            80' Cedar tree reported broken in half.

&&

Local storm report, Jul 3, 8:50 PM MDT, 59 minutes before

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Local storm report, Jul 3, 9:09 PM MDT, 40 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 3, 6:21 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Albany, Converse, Laramie, Platte	54 min
Jul 3, 6:34 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Converse	56 min
Jul 3, 7:04 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Converse	41 min
Jul 3, 7:15 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Converse, Goshen, Niobrara, Platte	60 min
Jul 3, 7:43 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Converse, Niobrara	62 min
Jul 3, 8:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Niobrara	41 min
Jul 3, 8:32 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Converse, Niobrara	43 min
Jul 3, 8:41 PM MDT	Severe Thunderstorm Warning	CYS	Goshen	49 min
Jul 3, 10:41 PM MDT	Special Weather Statement	CYS	Carbon	64 min
Jul 4, 4:41 AM MDT	Special Weather Statement	CYS	Albany	64 min
Jul 4, 1:18 PM MDT	Special Weather Statement	CYS	Laramie	42 min
Jul 4, 1:58 PM MDT	Special Weather Statement	CYS	Laramie	32 min
Jul 4, 2:05 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Platte	40 min
Jul 4, 2:28 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Goshen, Platte	32 min
Jul 4, 2:52 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Goshen	23 min
Jul 4, 3:12 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Goshen	33 min
Jul 4, 4:08 PM MDT	Severe Thunderstorm Warning	CYS	Albany, Carbon	67 min
Jul 4, 5:11 PM MDT	Special Weather Statement	CYS	Albany	34 min
Jul 4, 5:25 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Albany, Carbon	50 min
Jul 4, 5:38 PM MDT	Tornado Warning	CYS	Albany	37 min
Jul 3, 9:06 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Dawes, Sioux	54 min
Jul 4, 3:39 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Banner, Scotts Bluff	36 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2023 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.