Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 68, NWS North Platte, NE

June 23, 20214 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2021, 9:47 PM CDT for 4 counties in Nebraska. It was in force for 43 min. 3 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: Jun 23, 2021, 9:47 PM CDT (02:47 UTC)
Expired: Jun 23, 2021, 10:30 PM CDT
In force: 43 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 2.0 in
Wind: 60.0 mph

Counties Boyd County, NE, Holt County, NE, Keya Paha County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 143 km from the middle of the area, began a volume at 02:46 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
Jun 23, 10:00 PM CDT	HAIL 1.5	9 Nne Newport, NE
Jun 23, 10:28 PM CDT	TSTM WND GST 60	3 Ssw Atkinson, NE
Jun 23, 10:28 PM CDT	HAIL 0.88	3 Sw Atkinson, 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 00:00Z, 2.8 hours before the alert went out and 209 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.

438 
WUUS53 KLBF 240247
SVRLBF
NEC015-089-103-149-240330-
/O.NEW.KLBF.SV.W.0068.210624T0247Z-210624T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
947 PM CDT Wed Jun 23 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northeastern Rock County in north central Nebraska...
  Northwestern Holt County in north central Nebraska...
  Eastern Keya Paha County in north central Nebraska...
  Western Boyd County in north central Nebraska...

* Until 1030 PM CDT.

* At 947 PM CDT, a severe thunderstorm was located 10 miles north of
  Newport, or 15 miles northeast of Bassett, moving east at 30 mph.

  HAZARD...Two inch 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...
  Atkinson, Stuart, Butte, Newport, Naper, Emmet, Dustin, Anoka, Hull
  Lake State Wildlife Management Area, Mariaville, Mills, Brocksburg
  and Parshall Bridge State Wildlife Management Area.

This includes the following highways...
 Highway 20 between mile markers 263 and 298.
 Highway 12 between mile markers 68 and 118.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

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 4232 9882 4261 9955 4295 9954 4300 9879
TIME...MOT...LOC 0247Z 268DEG 28KT 4276 9936 

HAIL...2.00IN
WIND...60MPH
 
$$

Gomez

1 follow-up statement

126 
WWUS53 KLBF 240310
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1010 PM CDT Wed Jun 23 2021

NEC015-089-103-149-240330-
/O.CON.KLBF.SV.W.0068.000000T0000Z-210624T0330Z/
Rock NE-Holt NE-Keya Paha NE-Boyd NE-
1010 PM CDT Wed Jun 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR NORTHEASTERN ROCK...NORTHWESTERN HOLT...EASTERN KEYA PAHA AND
WESTERN BOYD COUNTIES...

At 1010 PM CDT, a severe thunderstorm was located 11 miles north of
Stuart, or 22 miles west of Spencer, moving east at 30 mph.

HAZARD...Two inch hail and 70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
Atkinson, Stuart, Butte, Newport, Naper, Emmet, Dustin, Anoka, Hull
Lake State Wildlife Management Area, Mariaville, Mills, Brocksburg
and Parshall Bridge State Wildlife Management Area.

This includes the following highways...
 Highway 20 between mile markers 263 and 298.
 Highway 12 between mile markers 68 and 118.

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 4232 9882 4261 9955 4295 9954 4300 9879
TIME...MOT...LOC 0310Z 268DEG 28KT 4277 9912 

HAIL...2.00IN
WIND...70MPH
 
$$

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, 9:28 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	32 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.