Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 79, NWS North Platte, NE

July 3, 2021Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 3, 2021, 6:23 PM MDT for Cherry County, Nebraska. It was in force for 67 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: Jul 3, 2021, 6:23 PM MDT (00:23 UTC)
Expired: Jul 3, 2021, 7:30 PM MDT
In force: 67 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Cherry County, NE

The radar

The North Platte radar (KLNX), 134 km from the middle of the area, began a volume at 00:26 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
Jul 3, 6:25 PM MDT	HAIL 1.75	11 Wsw Merriman, NE	MIXED WITH SOME DIME SUN NOW SHINING IN HIS LOCATION.

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
Jul 3, 3:33 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 0.4 hours before the alert went out and 166 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: 64 J/kg
Mixed-layer CIN: -214 J/kg
Mixed-layer LCL: 2992 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

530 
WUUS53 KLBF 040023
SVRLBF
NEC031-040130-
/O.NEW.KLBF.SV.W.0079.210704T0023Z-210704T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
623 PM MDT Sat Jul 3 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cherry County in north central Nebraska...

* Until 730 PM MDT.

* At 623 PM MDT, a severe thunderstorm was located 10 miles west of
  Merriman, or 16 miles east of Gordon, moving east at 20 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...
  Merriman, Highway 61 Crossing The Niobrara River, Irwin,
  Intersection of Highway 20 and Irwin Road and Bayonne.

This includes the following highways...
 Highway 20 between mile markers 117 and 147.
 Highway 61 between mile markers 213 and 230.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4273 10148 4278 10200 4296 10200 4300 10150
      4299 10148
TIME...MOT...LOC 0023Z 268DEG 15KT 4287 10189 

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

Buttler

1 follow-up statement

924 
WWUS53 KLBF 040048
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
648 PM MDT Sat Jul 3 2021

NEC031-040130-
/O.CON.KLBF.SV.W.0079.000000T0000Z-210704T0130Z/
Cherry NE-
648 PM MDT Sat Jul 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM MDT
FOR NORTHWESTERN CHERRY COUNTY...

At 648 PM MDT, a severe thunderstorm was located near Merriman, or 20
miles south of Martin, moving east at 20 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...
Merriman, Highway 61 Crossing The Niobrara River, Irwin, Intersection
of Highway 20 and Irwin Road and Bayonne.

This includes the following highways...
 Highway 20 between mile markers 117 and 147.
 Highway 61 between mile markers 213 and 230.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4273 10148 4278 10200 4296 10200 4300 10150
      4299 10148
TIME...MOT...LOC 0048Z 269DEG 19KT 4288 10172 

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

Buttler

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 6:30 PM MDT	Special Weather Statement	LBF	Garden	45 min
Jul 3, 6:58 PM MDT	Special Weather Statement	LBF	Sheridan	47 min
Jul 3, 7:08 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	55 min
Jul 3, 7:50 PM MDT	Special Weather Statement	LBF	Cherry	40 min
Jul 3, 8:19 PM MDT	Special Weather Statement	LBF	Cherry	41 min
Jul 3, 8:30 PM MDT	Special Weather Statement	LBF	Cherry	45 min
Jul 3, 8:56 PM MDT	Special Weather Statement	LBF	Hooker	49 min
Jul 3, 9:10 PM MDT	Special Weather Statement	LBF	Cherry	50 min
Jul 3, 9:51 PM MDT	Special Weather Statement	LBF	Keya Paha	39 min
Jul 3, 9:53 PM MDT	Special Weather Statement	LBF	Thomas	52 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.