Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS North Platte, NE

May 13, 20215 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 13, 2021, 5:12 PM MDT for 5 counties in Nebraska. It was in force for 48 min. 5 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, 5:12 PM MDT (23:12 UTC)
Expired: May 13, 2021, 6:00 PM MDT
In force: 48 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Arthur County, NE, Keith County, NE, Lincoln County, NE, McPherson County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 108 km from the middle of the area, began a volume at 23:12 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, 5:15 PM MDT	TSTM WND GST 74	5 Ese Keystone, NE
May 13, 5:29 PM MDT	HAIL 1	2 N Paxton, NE	MPING REPORT
May 13, 5:43 PM MDT	HAIL 1	7 S Paxton, NE	MPING REPORT
May 13, 5:45 PM MDT	HAIL 1	8 Ssw Paxton, NE
May 13, 5:59 PM MDT	HAIL 1.75	9 Nnw 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, 11.2 hours before the alert went out and 68 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.

511 
WUUS53 KLBF 132312
SVRLBF
NEC005-101-111-117-135-140000-
/O.NEW.KLBF.SV.W.0008.210513T2312Z-210514T0000Z/

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

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Southeastern Arthur County in west central Nebraska...
  Northeastern Perkins County in southwestern Nebraska...
  Eastern Keith County in southwestern Nebraska...
  West central Lincoln County in southwestern Nebraska...
  Southwestern McPherson County in west central Nebraska...

* Until 700 PM CDT/600 PM MDT/.

* At 612 PM CDT/512 PM MDT/, a severe thunderstorm was located 8
  miles northeast of Keystone, or 17 miles northeast of Ogallala,
  moving southeast at 30 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Sutherland, Hershey, Paxton, Keystone, Sutherland Reservoir State
  Recreation Area, Sarben, Big Bald Hill, Coker, O'Fallons, Nevens
  and Broganville.

This includes Interstate 80 in Nebraska between mile markers 136 and
171.
 
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 4131 10169 4148 10143 4113 10086 4085 10137
TIME...MOT...LOC 2312Z 323DEG 27KT 4131 10147 

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

Jurgensen

1 follow-up statement

092 
WWUS53 KLBF 132326
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
626 PM CDT Thu May 13 2021

NEC005-117-132334-
/O.CAN.KLBF.SV.W.0008.000000T0000Z-210514T0000Z/
Arthur NE-McPherson NE-
626 PM CDT Thu May 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ARTHUR AND
SOUTHWESTERN MCPHERSON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has exited the 
warned area. Therefore, the warning has been cancelled.

LAT...LON 4131 10169 4140 10156 4140 10129 4113 10086
      4085 10137
TIME...MOT...LOC 2324Z 309DEG 37KT 4120 10136 

$$

NEC101-111-135-140000-
/O.CON.KLBF.SV.W.0008.000000T0000Z-210514T0000Z/
Perkins NE-Keith NE-Lincoln NE-
626 PM CDT Thu May 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM
CDT/600 PM MDT/ FOR NORTHEASTERN PERKINS...EASTERN KEITH AND WEST
CENTRAL LINCOLN COUNTIES...

At 624 PM CDT/524 PM MDT/, a severe thunderstorm was located near
Sarben, or 19 miles east of Ogallala, moving southeast at 40 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated. At 515 MDT, a 74 mph gust was reported 5 
         miles east-southeast of Keystone.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Sutherland, Hershey, Paxton, Keystone, Sutherland Reservoir State
Recreation Area, Sarben, Big Bald Hill, Coker, O'Fallons, Nevens and
Broganville.

This includes Interstate 80 in Nebraska between mile markers 136 and
171.
 
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 4131 10169 4140 10156 4140 10129 4113 10086
      4085 10137
TIME...MOT...LOC 2324Z 309DEG 37KT 4120 10136 

HAIL...1.00IN
WIND...70MPH
 
$$

Jurgensen

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 2:04 PM MDT	Special Weather Statement	LBF	Cherry	41 min
May 13, 2:12 PM MDT	Special Weather Statement	LBF	Cherry	48 min
May 13, 2:17 PM MDT	Special Weather Statement	LBF	Grant	43 min
May 13, 2:44 PM MDT	Severe Thunderstorm Warning	LBF	Grant, Sheridan	46 min
May 13, 2:49 PM MDT	Severe Thunderstorm Warning	LBF	Garden	41 min
May 13, 3:12 PM MDT	Special Weather Statement	LBF	Thomas	48 min
May 13, 3:27 PM MDT	Special Weather Statement	LBF	Arthur, Grant	48 min
May 13, 3:36 PM MDT	Special Weather Statement	LBF	Chase	24 min
May 13, 3:43 PM MDT	Special Weather Statement	LBF	Arthur	47 min
May 13, 3:53 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant	52 min
May 13, 3:56 PM MDT	Special Weather Statement	LBF	Thomas	49 min
May 13, 3:58 PM MDT	Special Weather Statement	LBF	Chase	47 min
May 13, 4:44 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith	46 min
May 13, 5:10 PM MDT	Special Weather Statement	LBF	Logan	50 min
May 13, 5:30 PM MDT	Special Weather Statement	LBF	McPherson	45 min
May 13, 5:36 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan, Thomas	39 min
May 13, 5:50 PM MDT	Severe Thunderstorm Warning	LBF	Hayes, Keith, Lincoln, Perkins	40 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.