Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 51, NWS North Platte, NE

June 15, 2021Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 15, 2021, 3:57 AM MDT for Sheridan County, Nebraska. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 15, 2021, 3:57 AM MDT (09:57 UTC)
Expired: Jun 15, 2021, 4:45 AM MDT
In force: 48 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Sheridan County, NE

The radar

The North Platte radar (KLNX), 171 km from the middle of the area, began a volume at 09:57 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 00:00Z, 10.0 hours before the alert went out and 175 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: 1558 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 2097 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

949 
WUUS53 KLBF 150957
SVRLBF
NEC161-151045-
/O.NEW.KLBF.SV.W.0051.210615T0957Z-210615T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
357 AM MDT Tue Jun 15 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Central Sheridan County in the Panhandle of Nebraska...

* Until 445 AM MDT.

* At 357 AM MDT, a severe thunderstorm was located 8 miles south of
  Rushville, moving southeast at 30 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Rushville, Hay Springs, Diamond Lake, Smith Lake State Wildlife
  Management Area, Highway 250 crossing the Niobrara River,
  Intersection of Highway 87 and Antelope Road, Walgren Lake State
  Recreation Area and Argo Hill.

This includes the following highways...
 Highway 20 between mile markers 80 and 94.
 Highway 250 between mile markers 12 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4265 10276 4279 10244 4234 10205 4216 10252
TIME...MOT...LOC 0957Z 327DEG 24KT 4260 10252 

HAIL...1.25IN
WIND...<50MPH
 
$$

Buttler

1 follow-up statement

782 
WWUS53 KLBF 151025
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
425 AM MDT Tue Jun 15 2021

NEC161-151045-
/O.CON.KLBF.SV.W.0051.000000T0000Z-210615T1045Z/
Sheridan NE-
425 AM MDT Tue Jun 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM MDT
FOR CENTRAL SHERIDAN COUNTY...

At 425 AM MDT, a severe thunderstorm was located 18 miles south of
Rushville, moving southeast at 30 mph.

HAZARD...Ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles.

Locations impacted include...
Rushville, Hay Springs, Diamond Lake, Smith Lake State Wildlife
Management Area, Highway 250 crossing the Niobrara River,
Intersection of Highway 87 and Antelope Road, Walgren Lake State
Recreation Area and Argo Hill.

This includes the following highways...
 Highway 20 between mile markers 80 and 94.
 Highway 250 between mile markers 12 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4265 10276 4279 10244 4234 10205 4216 10252
TIME...MOT...LOC 1025Z 320DEG 24KT 4246 10233 

HAIL...1.50IN
WIND...<50MPH
 
$$

Buttler

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 3:32 AM MDT	Special Weather Statement	LBF	Sheridan	43 min
Jun 15, 4:48 AM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	57 min
Jun 15, 5:09 AM MDT	Severe Thunderstorm Warning	LBF	Sheridan	66 min
Jun 15, 6:08 AM MDT	Special Weather Statement	LBF	Sheridan	52 min
Jun 15, 7:26 AM MDT	Special Weather Statement	LBF	Arthur	49 min
Jun 15, 7:49 AM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, McPherson	41 min
Jun 15, 7:57 AM MDT	Special Weather Statement	LBF	Sheridan	48 min
Jun 15, 8:35 AM MDT	Special Weather Statement	LBF	Lincoln	40 min
Jun 15, 1:40 PM MDT	Heat Advisory	LBF	Blaine, Boyd, Brown, Chase, Cherry, Custer and 15 more	53 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021 Every severe thunderstorm warning in 2021

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.