Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 163, NWS North Platte, NE

August 28, 2021Frontier County, Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 28, 2021, 7:31 PM CDT for Frontier County, Lincoln County, Nebraska. It was in force for 44 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: Aug 28, 2021, 7:31 PM CDT (00:31 UTC)
Expired: Aug 28, 2021, 8:15 PM CDT
In force: 44 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Frontier County, NE, Lincoln County, NE

The radar

The North Platte radar (KLNX), 153 km from the middle of the area, began a volume at 00:33 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
Aug 28, 3:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 62 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: 2510 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 2148 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.7

Open this sounding in Storm Lab

The text

As transmitted.

037 
WUUS53 KLBF 290031
SVRLBF
NEC063-111-290115-
/O.NEW.KLBF.SV.W.0163.210829T0031Z-210829T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
731 PM CDT Sat Aug 28 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northwestern Frontier County in southwestern Nebraska...
  Southern Lincoln County in southwestern Nebraska...

* Until 815 PM CDT.

* At 731 PM CDT, a severe thunderstorm was located near Curtis,
  moving east at 10 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...
  Curtis, Moorefield, Stockville, Maywood and Dancing Leaf Earth
  Lodge.

This includes Highway 83 between mile markers 36 and 48.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4048 10065 4062 10071 4078 10041 4053 10028
TIME...MOT...LOC 0031Z 247DEG 9KT 4058 10060 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Sporer

2 follow-up statements

339 
WWUS53 KLBF 290049
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
749 PM CDT Sat Aug 28 2021

NEC111-290059-
/O.CAN.KLBF.SV.W.0163.000000T0000Z-210829T0115Z/
Lincoln NE-
749 PM CDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LINCOLN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has stayed out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southwestern Nebraska.

LAT...LON 4062 10071 4070 10055 4070 10037 4053 10028
      4048 10065
TIME...MOT...LOC 0049Z 247DEG 9KT 4060 10054 

$$

NEC063-290115-
/O.CON.KLBF.SV.W.0163.000000T0000Z-210829T0115Z/
Frontier NE-
749 PM CDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN FRONTIER COUNTY...

At 749 PM CDT, a severe thunderstorm was located near Curtis, moving
northeast at 10 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...
Curtis, Moorefield, Stockville, Maywood and Dancing Leaf Earth Lodge.

This includes Highway 83 between mile markers 36 and 47.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4062 10071 4070 10055 4070 10037 4053 10028
      4048 10065
TIME...MOT...LOC 0049Z 247DEG 9KT 4060 10054 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Sporer

640 
WWUS53 KLBF 290120
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
820 PM CDT Sat Aug 28 2021

NEC063-290130-
/O.EXP.KLBF.SV.W.0163.000000T0000Z-210829T0115Z/
Frontier NE-
820 PM CDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN FRONTIER COUNTY
HAS EXPIRED...
                
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 allowed to expire.  However hail is 
still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southwestern Nebraska.

LAT...LON 4062 10071 4070 10055 4070 10037 4053 10028
      4048 10065
TIME...MOT...LOC 0120Z 247DEG 9KT 4063 10045 

$$

Sporer

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 7:01 PM CDT	Special Weather Statement	LBF	Custer	29 min
Aug 28, 7:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Garfield, Holt, Loup, Wheeler	66 min
Aug 28, 7:13 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup	62 min
Aug 28, 7:15 PM CDT	Special Weather Statement	LBF	Frontier	30 min
Aug 28, 7:42 PM CDT	Severe Thunderstorm Warning	LBF	Custer	33 min
Aug 28, 7:46 PM CDT	Special Weather Statement	LBF	Garfield	44 min
Aug 28, 8:03 PM CDT	Areal Flood Advisory	LBF	Blaine, Loup	3 hr
Aug 28, 8:07 PM CDT	Special Weather Statement	LBF	Holt	38 min
Aug 28, 8:18 PM CDT	Special Weather Statement	LBF	Loup	42 min
Aug 28, 8:19 PM CDT	Special Weather Statement	LBF	Wheeler	41 min
Aug 28, 8:21 PM CDT	Special Weather Statement	LBF	Frontier	39 min
Aug 28, 8:55 PM CDT	Special Weather Statement	LBF	Frontier	50 min
Aug 28, 8:57 PM CDT	Special Weather Statement	LBF	Custer	48 min
Aug 28, 10:21 PM CDT	Special Weather Statement	LBF	Frontier	39 min
Aug 28, 11:33 PM CDT	Areal Flood Advisory	LBF	Garfield, Wheeler	6 hr
Aug 29, 12:03 AM CDT	Special Weather Statement	LBF	Frontier	42 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.