Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 74, NWS North Platte, NE

June 23, 20214 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2021, 11:20 PM CDT for 4 counties in Nebraska. It was in force for 25 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: Jun 23, 2021, 11:20 PM CDT (04:20 UTC)
Expired: Jun 23, 2021, 11:45 PM CDT
In force: 25 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Blaine County, NE, Brown County, NE, Custer County, NE, Loup County, NE

The radar

The North Platte radar (KLNX), 72 km from the middle of the area, began a volume at 04:23 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
Jun 23, 11:35 PM CDT	TSTM WND GST 60	2 S Brewster, NE

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
Jun 23, 10:37 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.3 hours before the alert went out and 113 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: 3468 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 1979 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

769 
WUUS53 KLBF 240420
SVRLBF
NEC009-017-041-115-240445-
/O.NEW.KLBF.SV.W.0074.210624T0420Z-210624T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
1120 PM CDT Wed Jun 23 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Western Loup County in north central Nebraska...
  South central Brown County in north central Nebraska...
  North central Custer County in central Nebraska...
  Blaine County in north central Nebraska...

* Until 1145 PM CDT.

* At 1120 PM CDT, severe thunderstorms were located along a line
  extending from 10 miles north of Brewster to near Dunning, moving
  east at 40 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...
  Brewster, Anselmo, Dunning, Victoria Springs State Recreation Area,
  Milburn, Milburn Diversion Dam State Wildlife Management Area,
  Linscott, Almeria Meadow State Wildlife Management Area, Horseshoe
  Bend Lake and Almeria.

This includes the following highways...
 Highway 183 between mile markers 136 and 143.
 Highway 2 between mile markers 232 and 261.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4200 9933 4155 9977 4182 10027 4212 9987
TIME...MOT...LOC 0420Z 291DEG 34KT 4209 9984 4178 10018 

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

Gomez

1 follow-up statement

644 
WWUS53 KLBF 240433
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1133 PM CDT Wed Jun 23 2021

NEC009-017-041-115-240445-
/O.CON.KLBF.SV.W.0074.000000T0000Z-210624T0445Z/
Loup NE-Brown NE-Custer NE-Blaine NE-
1133 PM CDT Wed Jun 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR WESTERN LOUP...SOUTH CENTRAL BROWN...NORTH CENTRAL CUSTER AND
BLAINE COUNTIES...

At 1133 PM CDT, severe thunderstorms were located along a line
extending from 11 miles northeast of Brewster to 6 miles southeast of
Dunning, moving east at 40 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...
Brewster, Anselmo, Dunning, Victoria Springs State Recreation Area,
Milburn, Milburn Diversion Dam State Wildlife Management Area,
Linscott, Almeria Meadow State Wildlife Management Area, Horseshoe
Bend Lake and Almeria.

This includes the following highways...
 Highway 183 between mile markers 136 and 143.
 Highway 2 between mile markers 232 and 261.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4200 9933 4155 9977 4182 10027 4212 9987
TIME...MOT...LOC 0433Z 291DEG 34KT 4205 9971 4174 10005 

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

Gomez

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:25 PM CDT	Special Weather Statement	LBF	Keya Paha	50 min
Jun 23, 8:04 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	41 min
Jun 23, 8:12 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha	18 min
Jun 23, 8:39 PM CDT	Special Weather Statement	LBF	Grant	36 min
Jun 23, 8:44 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	46 min
Jun 23, 9:07 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha, Rock	53 min
Jun 23, 9:28 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	32 min
Jun 23, 9:47 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha, Rock	43 min
Jun 23, 9:50 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha	40 min
Jun 23, 10:25 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha, Rock	35 min
Jun 23, 10:27 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	33 min
Jun 23, 10:33 PM CDT	Special Weather Statement	LBF	Brown	27 min
Jun 23, 10:53 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	52 min
Jun 23, 10:57 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Cherry, Keya Paha, Loup, Rock	48 min
Jun 23, 11:05 PM CDT	Special Weather Statement	LBF	Blaine, Logan, Loup	40 min
Jun 23, 11:36 PM CDT	Areal Flood Advisory	LBF	Garfield, Holt, Loup, Rock, Wheeler	3 hr
Jun 23, 11:40 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Garfield, Holt, Loup, Rock and 1 more	50 min
Jun 24, 12:30 AM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Garfield, Holt, Loup, Wheeler	30 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.