Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 57, NWS North Platte, NE

June 23, 2021Keya Paha County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2021, 5:19 PM CDT for Keya Paha County, Nebraska. It was in force for 41 min. 1 report 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: Jun 23, 2021, 5:19 PM CDT (22:19 UTC)
Expired: Jun 23, 2021, 6:00 PM CDT
In force: 41 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Keya Paha County, NE

The radar

The North Platte radar (KLNX), 134 km from the middle of the area, began a volume at 22:22 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
Jun 23, 5:39 PM CDT	HAIL 2.75	3 Wsw Burton, NE

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 23, 4:40 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.3 hours before the alert went out and 211 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: 211 J/kg
Mixed-layer CIN: -469 J/kg
Mixed-layer LCL: 2679 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

298 
WUUS53 KLBF 232219
SVRLBF
NEC103-232300-
/O.NEW.KLBF.SV.W.0057.210623T2219Z-210623T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
519 PM CDT Wed Jun 23 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Keya Paha County in north central Nebraska...

* Until 600 PM CDT.

* At 519 PM CDT, a severe thunderstorm was located 7 miles northwest
  of Springview, moving east at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Springview, Burton, Nets Peak, Thomas Creek State Wildlife
  Management Area, Mills and Brocksburg.

This includes the following highways...
 Highway 183 between mile markers 210 and 223.
 Highway 12 between mile markers 35 and 86.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4280 9926 4278 9934 4278 9937 4277 9939
      4277 9941 4275 9945 4277 9997 4295 9999
      4300 9939 4300 9926
TIME...MOT...LOC 2219Z 268DEG 29KT 4287 9989 

HAIL...1.25IN
WIND...60MPH
 
$$

Taylor

1 follow-up statement

011 
WWUS53 KLBF 232236
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
536 PM CDT Wed Jun 23 2021

NEC103-232300-
/O.CON.KLBF.SV.W.0057.000000T0000Z-210623T2300Z/
Keya Paha NE-
536 PM CDT Wed Jun 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR KEYA PAHA COUNTY...

At 536 PM CDT, a severe thunderstorm was located near Springview,
moving east at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Springview, Burton, Nets Peak, Thomas Creek State Wildlife Management
Area, Mills and Brocksburg.

This includes the following highways...
 Highway 183 between mile markers 210 and 222.
 Highway 12 between mile markers 40 and 86.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4280 9926 4278 9934 4278 9937 4277 9939
      4277 9941 4275 9945 4277 9997 4295 9981
      4300 9939 4300 9926
TIME...MOT...LOC 2236Z 268DEG 29KT 4287 9970 

HAIL...1.50IN
WIND...60MPH
 
$$

Taylor

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 4:51 PM CDT	Special Weather Statement	LBF	Keya Paha	39 min
Jun 23, 5:22 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	38 min
Jun 23, 5:58 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	47 min
Jun 23, 5:59 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry	46 min
Jun 23, 6:05 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha	23 min
Jun 23, 6:45 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Rock	17 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.