Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 160, NWS North Platte, NE

August 28, 2021Custer County, Logan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 28, 2021, 6:57 PM CDT for Custer County, Logan County, Nebraska. It was in force for 48 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, 6:57 PM CDT (23:57 UTC)
Expired: Aug 28, 2021, 7:45 PM CDT
In force: 48 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Custer County, NE, Logan County, NE

The radar

The North Platte radar (KLNX), 70 km from the middle of the area, began a volume at 23:58 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 12:00Z, 12.0 hours before the alert went out and 60 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: 269 J/kg
Mixed-layer CIN: -487 J/kg
Mixed-layer LCL: 2050 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

303 
WUUS53 KLBF 282357 RRA
SVRLBF
NEC041-113-290045-
/O.NEW.KLBF.SV.W.0160.210828T2357Z-210829T0045Z/

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

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Southeastern Logan County in west central Nebraska...
  Northern Custer County in central Nebraska...

* Until 745 PM CDT.

* At 657 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles southeast of Dunning to near Gandy, 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...
  Arnold, Merna, Anselmo, Gandy, Victoria Springs State Recreation
  Area, Lillian, Logan, Round Valley, Milldale, Tarboz Lake, Pleasant
  Hill, Hoagland and Finchville.

This includes the following highways...
 Highway 2 between mile markers 252 and 274.
 Highway 92 between mile markers 233 and 273.
 Highway 83 between mile markers 107 and 108.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4159 9941 4131 9992 4136 10024 4139 10024
      4139 10040 4141 10052 4173 10016
TIME...MOT...LOC 2357Z 277DEG 9KT 4174 10004 4147 10038 

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

$$

Sporer

3 follow-up statements

868 
WWUS53 KLBF 290020
SVSLBF

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

NEC113-290029-
/O.CAN.KLBF.SV.W.0160.000000T0000Z-210829T0045Z/
Logan NE-
720 PM CDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LOGAN COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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

LAT...LON 4159 9941 4132 9991 4146 10026 4151 10025
      4173 10016
TIME...MOT...LOC 0019Z 277DEG 9KT 4173 9998 4146 10032 

$$

NEC041-290045-
/O.CON.KLBF.SV.W.0160.000000T0000Z-210829T0045Z/
Custer NE-
720 PM CDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHERN CUSTER COUNTY...

At 719 PM CDT, severe thunderstorms were located along a line
extending from 9 miles southeast of Dunning to 6 miles northwest of
Arnold, 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...
Merna, Anselmo, Victoria Springs State Recreation Area, Lillian,
Round Valley and Pleasant Hill.

This includes the following highways...
 Highway 2 between mile markers 252 and 274.
 Highway 92 between mile markers 251 and 273.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4159 9941 4132 9991 4146 10026 4151 10025
      4173 10016
TIME...MOT...LOC 0019Z 277DEG 9KT 4173 9998 4146 10032 

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

$$

Sporer

357 
WWUS53 KLBF 290036
SVSLBF

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

NEC041-290045-
/O.CON.KLBF.SV.W.0160.000000T0000Z-210829T0045Z/
Custer NE-
736 PM CDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHERN CUSTER COUNTY...

At 736 PM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Victoria Springs State Recreation
Area to near Arnold, moving east at 25 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...
Merna, Anselmo, Victoria Springs State Recreation Area, Lillian,
Round Valley and Pleasant Hill.

This includes the following highways...
 Highway 2 between mile markers 254 and 274.
 Highway 92 between mile markers 256 and 273.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4159 9941 4132 9991 4149 10012 4168 10001
TIME...MOT...LOC 0036Z 286DEG 20KT 4171 9977 4144 10011 

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

$$

Sporer

937 
WWUS53 KLBF 290043 RRA
SVSLBF

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

NEC041-290053-
/O.EXP.KLBF.SV.W.0160.000000T0000Z-210829T0045Z/
Custer NE-
743 PM CDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CUSTER COUNTY WILL
EXPIRE AT 745 PM CDT...
    
The storms which prompted the warning remain severe so a new warning 
has been issued.

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

LAT...LON 4159 9941 4132 9991 4149 10012 4168 10001
TIME...MOT...LOC 0043Z 277DEG 9KT 4171 9975 4144 10009 

$$

Sporer

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 12:56 AM CDT	Special Weather Statement	LBF	Garden	49 min
Aug 28, 1:36 AM CDT	Special Weather Statement	LBF	Garden, Grant	39 min
Aug 28, 2:14 AM CDT	Special Weather Statement	LBF	Garden, Grant	46 min
Aug 28, 2:35 AM CDT	Special Weather Statement	LBF	Cherry	25 min
Aug 28, 2:45 AM CDT	Severe Thunderstorm Warning	LBF	Cherry	45 min
Aug 28, 2:59 AM CDT	Special Weather Statement	LBF	Garden, Grant	31 min
Aug 28, 3:27 AM CDT	Severe Thunderstorm Warning	LBF	Cherry, Keya Paha	33 min
Aug 28, 3:30 AM CDT	Special Weather Statement	LBF	Grant	60 min
Aug 28, 3:32 AM CDT	Special Weather Statement	LBF	Cherry	58 min
Aug 28, 3:58 AM CDT	Special Weather Statement	LBF	Keya Paha	62 min
Aug 28, 4:29 AM CDT	Special Weather Statement	LBF	Hooker	61 min
Aug 28, 4:59 AM CDT	Special Weather Statement	LBF	Cherry	46 min
Aug 28, 7:04 AM CDT	Special Weather Statement	LBF	Cherry	56 min
Aug 28, 8:49 AM CDT	Special Weather Statement	LBF	Grant	41 min
Aug 28, 12:39 PM CDT	Special Weather Statement	LBF	Keya Paha	36 min
Aug 28, 1:24 PM CDT	Special Weather Statement	LBF	Boyd	51 min
Aug 28, 1:53 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	37 min
Aug 28, 4:17 PM CDT	Severe Thunderstorm Warning	LBF	Custer	43 min
Aug 28, 4:46 PM CDT	Special Weather Statement	LBF	Frontier	44 min
Aug 28, 5:02 PM CDT	Special Weather Statement	LBF	Custer	43 min
Aug 28, 5:12 PM CDT	Special Weather Statement	LBF	Lincoln	33 min
Aug 28, 5:25 PM CDT	Special Weather Statement	LBF	Loup	50 min
Aug 28, 5:29 PM CDT	Severe Thunderstorm Warning	LBF	Custer	46 min
Aug 28, 5:30 PM CDT	Special Weather Statement	LBF	Frontier	30 min
Aug 28, 5:37 PM CDT	Special Weather Statement	LBF	Blaine	38 min
Aug 28, 5:46 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Garfield, Holt, Loup, Rock	59 min
Aug 28, 6:15 PM CDT	Severe Thunderstorm Warning	LBF	Custer	45 min
Aug 28, 6:16 PM CDT	Special Weather Statement	LBF	Logan	29 min
Aug 28, 6:18 PM CDT	Special Weather Statement	LBF	Custer	42 min
Aug 28, 6:21 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Logan	39 min
Aug 28, 6:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Blaine, Custer, Garfield, Holt, Loup, Rock	40 min
Aug 28, 6:42 PM CDT	Special Weather Statement	LBF	Frontier	33 min
Aug 28, 6:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Garfield, Loup	48 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.