Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 61, NWS North Platte, NE

June 23, 2021Boyd County, Holt County, Keya Paha County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2021, 6:05 PM CDT for Boyd County, Holt County, Keya Paha County, Nebraska. It was in force for 23 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, 6:05 PM CDT (23:05 UTC)
Expired: Jun 23, 2021, 6:28 PM CDT
In force: 23 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

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

The radar

The North Platte radar (KLNX), 153 km from the middle of the area, began a volume at 23:06 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 12:00Z, 11.1 hours before the alert went out and 226 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.

618 
WUUS53 KLBF 232305
SVRLBF
NEC015-089-103-232345-
/O.NEW.KLBF.SV.W.0061.210623T2305Z-210623T2345Z/

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

The National Weather Service in North Platte has issued a

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

* Until 645 PM CDT.

* At 604 PM CDT, a severe thunderstorm was located 12 miles southwest
  of Naper, or 22 miles east of Springview, moving east at 40 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...
  Butte, Naper, Dustin, Anoka, Mills, Brocksburg, Parshall Bridge
  State Wildlife Management Area and Hull Lake State Wildlife
  Management Area.

This includes Highway 12 between mile markers 76 and 119.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4299 9877 4275 9877 4279 9926 4280 9926
      4279 9931 4278 9934 4278 9943 4296 9943
TIME...MOT...LOC 2304Z 269DEG 33KT 4287 9932 

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

Taylor

1 follow-up statement

909 
WWUS53 KLBF 232328
SVSLBF

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

NEC015-089-103-232338-
/O.CAN.KLBF.SV.W.0061.000000T0000Z-210623T2345Z/
Holt NE-Keya Paha NE-Boyd NE-
628 PM CDT Wed Jun 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HOLT...
NORTHEASTERN KEYA PAHA AND WESTERN BOYD COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has !** weakened.
moved out of the warned area. Therefore, the warning has been
cancelled.  However small hail, gusty winds and heavy rain are still
possible with this thunderstorm.

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

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

LAT...LON 4299 9877 4275 9877 4279 9926 4280 9926
      4279 9931 4278 9934 4278 9943 4296 9943
TIME...MOT...LOC 2326Z 269DEG 33KT 4287 9901 

$$

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, 5:19 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	41 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, 6:45 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.