Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS North Platte, NE

May 23, 2021Deuel County, Keith County, Perkins County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 23, 2021, 6:18 PM MDT for Deuel County, Keith County, Perkins County, Nebraska. It was in force for 42 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
May 23, 2021, 6:18 PM MDT (00:18 UTC)
Expired
May 23, 2021, 7:00 PM MDT
In force
42 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Deuel County, NE, Keith County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 152 km from the middle of the area, began a volume at 00:18 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

TimeReportWhereRemark
May 23, 6:55 PM MDTHAIL 0.25Brandon, NEGRANT FIRE CHIEF CALLED TO REPORT PEA SIZED HAIL IN BRANDON.

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.

IssuedProductOfficeLasted
May 23, 12:06 PM MDTTornado WatchSPC8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.3 hours before the alert went out and 118 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2021-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 930 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2021-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
930 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1216 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.5
Supercell composite
7.0

Open this sounding in Storm Lab

The text

As transmitted.

932 
WUUS53 KLBF 240018
SVRLBF
NEC049-101-135-240100-
/O.NEW.KLBF.SV.W.0022.210524T0018Z-210524T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
618 PM MDT Sun May 23 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Western Perkins County in southwestern Nebraska...
  Western Keith County in southwestern Nebraska...
  Eastern Deuel County in the Panhandle of Nebraska...

* Until 700 PM MDT.

* At 618 PM MDT, severe thunderstorms were located along a line
  extending from 6 miles northwest of Big Springs to near Amherst,
  moving northeast at 50 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...
  Ogallala, Big Springs, Brule, Venango, Barton, Lemoyne, Roscoe,
  Kingsley Dam, Eagle Gulch Campground, Brandon, Megeath, Lake View
  Campground, Wild Horse Spring and Goldeneye State Wildlife
  Management Area.

This includes the following highways...
 Highway 61 between mile markers 71 and 108.
 Highway 92 between mile markers 129 and 138.
 Interstate 80 in Nebraska between mile markers 95 and 136.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Lake McConaughy, get away from the water and move 
indoors or inside a vehicle. Remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

A Tornado Watch remains in effect until 800 PM MDT for the Panhandle
of and southwestern Nebraska.

LAT...LON 4122 10213 4122 10206 4127 10205 4129 10202
      4129 10178 4138 10174 4104 10146 4070 10203
      4070 10204 4100 10205 4100 10230 4113 10230
TIME...MOT...LOC 0018Z 216DEG 57KT 4114 10214 4070 10221 

HAIL...1.25IN
WIND...60MPH
 
$$

CDC
1 follow-up statement
900 
WWUS53 KLBF 240044
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
644 PM MDT Sun May 23 2021

NEC049-240053-
/O.CAN.KLBF.SV.W.0022.000000T0000Z-210524T0100Z/
Deuel NE-
644 PM MDT Sun May 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN DEUEL COUNTY IS
CANCELLED...

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

A Tornado Watch remains in effect until 800 PM MDT for southwestern
Nebraska.

LAT...LON 4127 10205 4129 10202 4129 10178 4138 10174
      4104 10146 4070 10204
TIME...MOT...LOC 0043Z 227DEG 38KT 4128 10186 4069 10208 

$$

NEC101-135-240100-
/O.CON.KLBF.SV.W.0022.000000T0000Z-210524T0100Z/
Perkins NE-Keith NE-
644 PM MDT Sun May 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MDT
FOR WESTERN PERKINS AND WESTERN KEITH COUNTIES...

At 643 PM MDT, severe thunderstorms were located along a line
extending from near Lemoyne to near Amherst, moving northeast at 45
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...
Ogallala, Brule, Venango, Lemoyne, Roscoe, Kingsley Dam, Eagle Gulch
Campground, Wild Horse Spring, Brandon, Megeath and Lake View
Campground.

This includes the following highways...
 Highway 61 between mile markers 71 and 108.
 Highway 92 between mile markers 129 and 138.
 Interstate 80 in Nebraska between mile markers 109 and 136.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4127 10205 4129 10202 4129 10178 4138 10174
      4104 10146 4070 10204
TIME...MOT...LOC 0043Z 227DEG 38KT 4128 10186 4069 10208 

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

CDC

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 6:00 PM MDTSevere Thunderstorm WarningLBFArthur, Garden, Grant, Keith45 min
May 23, 6:04 PM MDTSpecial Weather StatementLBFSheridan41 min
May 23, 6:26 PM MDTSevere Thunderstorm WarningLBFCherry, Grant, Sheridan49 min
May 23, 6:39 PM MDTSevere Thunderstorm WarningLBFArthur, Cherry, Grant, Hooker, McPherson51 min
May 23, 6:57 PM MDTSevere Thunderstorm WarningLBFChase, Keith, Perkins63 min
May 23, 6:59 PM MDTSevere Thunderstorm WarningLBFCherry46 min
May 23, 7:24 PM MDTSpecial Weather StatementLBFHooker51 min
May 23, 7:28 PM MDTAreal Flood WarningLBFKeith, Perkins3 hr
May 23, 7:30 PM MDTSpecial Weather StatementLBFMcPherson45 min
May 23, 7:47 PM MDTSpecial Weather StatementLBFCherry43 min
May 23, 7:54 PM MDTSpecial Weather StatementLBFThomas51 min
May 23, 7:59 PM MDTSpecial Weather StatementLBFPerkins46 min
May 23, 8:11 PM MDTSevere Thunderstorm WarningLBFBrown, Cherry, Keya Paha49 min
May 23, 8:14 PM MDTSpecial Weather StatementLBFLogan46 min
May 23, 8:17 PM MDTSevere Thunderstorm WarningLBFChase, Hayes, Perkins43 min
May 23, 8:29 PM MDTSpecial Weather StatementLBFBlaine, Logan46 min
May 23, 8:36 PM MDTFlash Flood WarningLBFKeith, Perkins3 hr
May 23, 8:39 PM MDTSpecial Weather StatementLBFLincoln51 min
May 23, 8:56 PM MDTSpecial Weather StatementLBFHayes34 min
May 23, 9:02 PM MDTSpecial Weather StatementLBFBrown, Keya Paha, Rock43 min
May 23, 9:14 PM MDTSpecial Weather StatementLBFBlaine, Logan, Loup46 min
May 23, 9:19 PM MDTSpecial Weather StatementLBFFrontier41 min
May 23, 9:30 PM MDTSevere Thunderstorm WarningLBFFrontier, Lincoln45 min
May 23, 9:33 PM MDTSpecial Weather StatementLBFLincoln42 min
May 23, 9:43 PM MDTSpecial Weather StatementLBFBrown, Keya Paha, Rock47 min
May 23, 9:50 PM MDTSpecial Weather StatementLBFBlaine, Loup40 min
May 23, 10:14 PM MDTSpecial Weather StatementLBFCuster, Frontier46 min
May 23, 10:36 PM MDTSpecial Weather StatementLBFGarfield, Loup39 min
May 23, 10:59 PM MDTSpecial Weather StatementLBFDawson31 min
May 23, 11:13 PM MDTSpecial Weather StatementLBFGarfield, Wheeler47 min
May 24, 5:18 PM MDTSpecial Weather StatementLBFFrontier42 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021Every 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.