Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 146, NWS North Platte, NE

August 24, 2021Brown County, Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 24, 2021, 2:35 AM CDT for Brown County, Cherry County, Nebraska. It was in force for 55 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: Aug 24, 2021, 2:35 AM CDT (07:35 UTC)
Expired: Aug 24, 2021, 3:30 AM CDT
In force: 55 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Brown County, NE, Cherry County, NE

The radar

The North Platte radar (KLNX), 39 km from the middle of the area, began a volume at 07:38 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
Aug 24, 2:43 AM CDT	TSTM WND GST 60	32 S Valentine, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.6 hours before the alert went out and 131 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: 3149 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1874 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

As transmitted.

890 
WUUS53 KLBF 240735
SVRLBF
NEC017-031-240830-
/O.NEW.KLBF.SV.W.0146.210824T0735Z-210824T0830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
235 AM CDT Tue Aug 24 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Southeastern Cherry County in north central Nebraska...
  Southwestern Brown County in north central Nebraska...

* Until 330 AM CDT/230 AM MDT/.

* At 235 AM CDT/135 AM MDT/, a severe thunderstorm was located near
  Brownlee, or 25 miles north of Thedford, moving east at 35 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Elsmere, Brownlee, Moon Lake, Willow Lake State Wildlife Management
  Area, Long Lake State Wildlife Management Area, Highway 83 crossing
  Goose Creek and Highway 83 crossing the North Loup River.

This includes Highway 83 between mile markers 165 and 181.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4223 10082 4241 10083 4251 10004 4213 10003
TIME...MOT...LOC 0735Z 267DEG 30KT 4233 10072 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Buttler

2 follow-up statements

102 
WWUS53 KLBF 240805
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
305 AM CDT Tue Aug 24 2021

NEC017-031-240830-
/O.CON.KLBF.SV.W.0146.000000T0000Z-210824T0830Z/
Cherry NE-Brown NE-
305 AM CDT Tue Aug 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT
FOR SOUTHEASTERN CHERRY AND SOUTHWESTERN BROWN COUNTIES...

At 305 AM CDT, a severe thunderstorm was located 12 miles east of
Brownlee, or 27 miles north of Thedford, moving east at 35 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...
Elsmere, Brownlee, Moon Lake, Willow Lake State Wildlife Management
Area, Long Lake State Wildlife Management Area, Highway 83 crossing
Goose Creek and Highway 83 crossing the North Loup River.

This includes Highway 83 between mile markers 165 and 181.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4221 10064 4243 10066 4251 10004 4213 10003
TIME...MOT...LOC 0805Z 267DEG 30KT 4234 10038 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Buttler

598 
WWUS53 KLBF 240821
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
321 AM CDT Tue Aug 24 2021

NEC017-031-240831-
/O.EXP.KLBF.SV.W.0146.000000T0000Z-210824T0830Z/
Cherry NE-Brown NE-
321 AM CDT Tue Aug 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHERRY AND
SOUTHWESTERN BROWN COUNTIES WILL EXPIRE AT 330 AM CDT...
                
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 will be allowed to expire.

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

LAT...LON 4221 10064 4243 10066 4251 10004 4213 10003
TIME...MOT...LOC 0821Z 267DEG 30KT 4235 10022 

$$

Buttler

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 8:55 PM CDT	Special Weather Statement	LBF	Sheridan	50 min
Aug 23, 9:54 PM CDT	Special Weather Statement	LBF	Cherry	51 min
Aug 23, 10:52 PM CDT	Special Weather Statement	LBF	Sheridan	38 min
Aug 23, 11:29 PM CDT	Special Weather Statement	LBF	Sheridan	46 min
Aug 24, 2:08 AM CDT	Special Weather Statement	LBF	Cherry	52 min
Aug 24, 5:14 PM CDT	Special Weather Statement	LBF	Thomas	46 min
Aug 24, 5:53 PM CDT	Special Weather Statement	LBF	Logan	37 min
Aug 24, 5:59 PM CDT	Severe Thunderstorm Warning	LBF	Logan, Thomas	31 min
Aug 24, 6:29 PM CDT	Special Weather Statement	LBF	Logan	46 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.