Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 82, NWS North Platte, NE

July 7, 2021Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 7, 2021, 7:44 PM MDT for Cherry County, Nebraska. It was in force for 27 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: Jul 7, 2021, 7:44 PM MDT (01:44 UTC)
Expired: Jul 7, 2021, 8:11 PM MDT
In force: 27 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

County Cherry County, NE

The radar

The North Platte radar (KLNX), 111 km from the middle of the area, began a volume at 01:47 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.7 hours before the alert went out and 178 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: 343 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 1639 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 243 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

023 
WUUS53 KLBF 080144
SVRLBF
NEC031-080230-
/O.NEW.KLBF.SV.W.0082.210708T0144Z-210708T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
744 PM MDT Wed Jul 7 2021

The National Weather Service in North Platte has issued a

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

* Until 830 PM MDT.

* At 743 PM MDT, a severe thunderstorm was located 18 miles southwest
  of Medicine Lake, or 29 miles southeast of Gordon, moving southeast
  at 15 mph.

  HAZARD...Golf 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...
  Round Lake, Intersection of Highway 61 and Survey Valley Road and
  Highway 61 crossing the Snake River.

This includes Highway 61 between mile markers 182 and 203.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4260 10182 4263 10166 4238 10145 4230 10176
TIME...MOT...LOC 0143Z 337DEG 13KT 4257 10172 

HAIL...1.75IN
WIND...60MPH
 
$$

Snively

2 follow-up statements

450 
WWUS53 KLBF 080159
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
759 PM MDT Wed Jul 7 2021

NEC031-080230-
/O.CON.KLBF.SV.W.0082.000000T0000Z-210708T0230Z/
Cherry NE-
759 PM MDT Wed Jul 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM MDT
FOR WEST CENTRAL CHERRY COUNTY...

At 759 PM MDT, a severe thunderstorm was located 19 miles southwest
of Medicine Lake, or 32 miles southeast of Gordon, moving southeast
at 15 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...
Round Lake, Intersection of Highway 61 and Survey Valley Road and
Highway 61 crossing the Snake River.

This includes Highway 61 between mile markers 182 and 200.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4254 10180 4260 10164 4238 10145 4230 10176
TIME...MOT...LOC 0159Z 337DEG 13KT 4252 10169 

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

Snively

816 
WWUS53 KLBF 080211
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
811 PM MDT Wed Jul 7 2021

NEC031-080221-
/O.CAN.KLBF.SV.W.0082.000000T0000Z-210708T0230Z/
Cherry NE-
811 PM MDT Wed Jul 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL CHERRY COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 4254 10180 4260 10164 4238 10145 4230 10176
TIME...MOT...LOC 0209Z 337DEG 13KT 4248 10167 

$$

Snively

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 6:55 PM MDT	Special Weather Statement	LBF	Cherry	35 min
Jul 7, 7:08 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	37 min
Jul 7, 11:14 PM MDT	Special Weather Statement	LBF	Sheridan	46 min
Jul 8, 4:53 AM MDT	Special Weather Statement	LBF	Rock	37 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.