Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 10, NWS North Platte, NE

May 13, 20214 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 13, 2021, 6:50 PM CDT for 4 counties in Nebraska. It was in force for 40 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 13, 2021, 6:50 PM CDT (23:50 UTC)
Expired: May 13, 2021, 7:30 PM CDT
In force: 40 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hayes County, NE, Keith County, NE, Lincoln County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 138 km from the middle of the area, began a volume at 23:54 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 was reported inside it

Time	Report	Where	Remark
May 13, 6:59 PM CDT	HAIL 1.75	9 Nnw Wallace, NE
May 13, 7:13 PM CDT	HAIL 2	Wallace, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.8 hours before the alert went out and 50 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 957 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 306 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

701 
WUUS53 KLBF 132350
SVRLBF
NEC085-101-111-135-140030-
/O.NEW.KLBF.SV.W.0010.210513T2350Z-210514T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
650 PM CDT Thu May 13 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northeastern Perkins County in southwestern Nebraska...
  Southeastern Keith County in southwestern Nebraska...
  Southern Lincoln County in southwestern Nebraska...
  Eastern Hayes County in southwestern Nebraska...

* Until 730 PM CDT/630 PM MDT/.

* At 649 PM CDT/549 PM MDT/, a severe thunderstorm was located 7
  miles southwest of Sutherland Reservoir State Recreation Area, or
  23 miles west of North Platte, moving southeast at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated. At 543 PM MDT, quarter size hail was 
           reported near Paxton.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Hayes Center, Sutherland, Hershey, Wallace, Wellfleet, Dickens,
  Sutherland Reservoir State Recreation Area, Lake Maloney State
  Recreation Area, Grainton, Coker, Hansen Memorial Reserve State
  Wildlife Management Area, O'Fallons, Hayes Center State Wildlife
  Management Area, Marengo and Somerset.

This includes the following highways...
 Interstate 80 in Nebraska between mile markers 148 and 170.
 Highway 83 between mile markers 52 and 77.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in North Platte.

&&

LAT...LON 4042 10102 4100 10144 4127 10117 4083 10034
      4070 10056 4070 10078 4057 10078
TIME...MOT...LOC 2349Z 315DEG 33KT 4101 10119 

HAIL...1.00IN
WIND...60MPH
 
$$

Jurgensen

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 3:04 PM CDT	Special Weather Statement	LBF	Cherry	41 min
May 13, 3:12 PM CDT	Special Weather Statement	LBF	Cherry	48 min
May 13, 3:17 PM CDT	Special Weather Statement	LBF	Grant	43 min
May 13, 3:44 PM CDT	Severe Thunderstorm Warning	LBF	Grant, Sheridan	46 min
May 13, 3:49 PM CDT	Severe Thunderstorm Warning	LBF	Garden	41 min
May 13, 4:12 PM CDT	Special Weather Statement	LBF	Thomas	48 min
May 13, 4:27 PM CDT	Special Weather Statement	LBF	Arthur, Grant	48 min
May 13, 4:36 PM CDT	Special Weather Statement	LBF	Chase	24 min
May 13, 4:43 PM CDT	Special Weather Statement	LBF	Arthur	47 min
May 13, 4:53 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant	52 min
May 13, 4:56 PM CDT	Special Weather Statement	LBF	Thomas	49 min
May 13, 4:58 PM CDT	Special Weather Statement	LBF	Chase	47 min
May 13, 5:44 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Keith	46 min
May 13, 6:10 PM CDT	Special Weather Statement	LBF	Logan	50 min
May 13, 6:12 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Lincoln, McPherson, Perkins	48 min
May 13, 6:30 PM CDT	Special Weather Statement	LBF	McPherson	45 min
May 13, 6:36 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan, Thomas	39 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.