Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 67, NWS North Platte, NE

June 23, 2021Keya Paha County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2021, 9:28 PM CDT for Keya Paha County, Nebraska. It was in force for 32 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 23, 2021, 9:28 PM CDT (02:28 UTC)
Expired: Jun 23, 2021, 10:00 PM CDT
In force: 32 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Keya Paha County, NE

The radar

The North Platte radar (KLNX), 118 km from the middle of the area, began a volume at 02:30 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
Jun 23, 4:40 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.5 hours before the alert went out and 203 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: 3468 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 1979 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

103 
WUUS53 KLBF 240228
SVRLBF
NEC103-240300-
/O.NEW.KLBF.SV.W.0067.210624T0228Z-210624T0300Z/

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

The National Weather Service in North Platte has issued a

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

* Until 1000 PM CDT.

* At 927 PM CDT, a severe thunderstorm was located near Norden, or 11
  miles west of Springview, moving east 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...
  Springview, Norden and Burton. 

This includes the following highways...
 Highway 183 between mile markers 212 and 224.
 Highway 12 between mile markers 28 and 67.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4280 9953 4279 10008 4280 10012 4295 10008
      4300 9952
TIME...MOT...LOC 0227Z 273DEG 24KT 4288 9995 

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

Gomez

2 follow-up statements

679 
WWUS53 KLBF 240244
SVSLBF

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

NEC103-240300-
/O.CON.KLBF.SV.W.0067.000000T0000Z-210624T0300Z/
Keya Paha NE-
944 PM CDT Wed Jun 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR CENTRAL KEYA PAHA COUNTY...

At 943 PM CDT, a severe thunderstorm was located near Springview,
moving east at 30 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, Norden and Burton. 

This includes the following highways...
 Highway 183 between mile markers 212 and 224.
 Highway 12 between mile markers 28 and 67.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4280 9953 4279 10008 4280 10012 4295 10008
      4300 9952
TIME...MOT...LOC 0243Z 273DEG 24KT 4287 9980 

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

Gomez

391 
WWUS53 KLBF 240254
SVSLBF

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

NEC103-240303-
/O.EXP.KLBF.SV.W.0067.000000T0000Z-210624T0300Z/
Keya Paha NE-
954 PM CDT Wed Jun 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL KEYA PAHA COUNTY WILL
EXPIRE AT 1000 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However small hail
is still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central Nebraska.

Remember, a Severe Thunderstorm Warning still remains in effect for
portions of Keya Paha County. 

LAT...LON 4280 9953 4279 10008 4280 10012 4295 10008
      4300 9952
TIME...MOT...LOC 0253Z 273DEG 24KT 4287 9972 

$$

Gomez

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:25 PM CDT	Special Weather Statement	LBF	Keya Paha	50 min
Jun 23, 8:04 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	41 min
Jun 23, 8:12 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha	18 min
Jun 23, 8:39 PM CDT	Special Weather Statement	LBF	Grant	36 min
Jun 23, 8:44 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	46 min
Jun 23, 9:07 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	53 min
Jun 23, 9:47 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha, Rock	43 min
Jun 23, 9:50 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha	40 min
Jun 23, 10:25 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha, Rock	35 min
Jun 23, 10:27 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	33 min
Jun 23, 10:33 PM CDT	Special Weather Statement	LBF	Brown	27 min
Jun 23, 10:53 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	52 min
Jun 23, 10:57 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha, Loup, Rock	48 min
Jun 23, 11:05 PM CDT	Special Weather Statement	LBF	Blaine, Logan, Loup	40 min
Jun 23, 11:20 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Brown, Custer, Loup	25 min
Jun 23, 11:36 PM CDT	Areal Flood Advisory	LBF	Garfield, Holt, Loup, Rock, Wheeler	3 hr
Jun 23, 11:40 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Garfield, Holt, Loup, Rock and 1 more	50 min
Jun 24, 12:30 AM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Garfield, Holt, Loup, Wheeler	30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.