Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 9, NWS North Platte, NE

May 13, 20214 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 13, 2021, 6:36 PM CDT for 4 counties in Nebraska. It was in force for 39 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
May 13, 2021, 6:36 PM CDT (23:36 UTC)
Expired
May 13, 2021, 7:15 PM CDT
In force
39 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Custer County, NE, Lincoln County, NE, Logan County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 50 km from the middle of the area, began a volume at 23:38 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.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.6 hours before the alert went out and 56 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 12:00Z on 2021-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 306 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
306 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

009 
WUUS53 KLBF 132336
SVRLBF
NEC041-111-113-171-140015-
/O.NEW.KLBF.SV.W.0009.210513T2336Z-210514T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
636 PM CDT Thu May 13 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northeastern Lincoln County in southwestern Nebraska...
  Logan County in west central Nebraska...
  Western Custer County in central Nebraska...
  Southeastern Thomas County in north central Nebraska...

* Until 715 PM CDT.

* At 636 PM CDT, severe thunderstorms were located along a line
  extending from 15 miles northeast of Gandy to 7 miles northwest of
  Arnold to near Stapleton, moving southeast 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...
  Stapleton, Arnold, Callaway, Merna, Anselmo, Gandy, Victoria
  Springs State Recreation Area, Lillian, Logan, Etna, Milldale,
  Shanklin Bluff, Tarboz Lake, Pleasant Hill, Hoagland, Brown Lake
  and Finchville.

This includes the following highways...
 Highway 2 between mile markers 253 and 274.
 Highway 92 between mile markers 218 and 273.
 Highway 83 between mile markers 103 and 124.

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 4145 10072 4150 10071 4177 10034 4175 10026
      4175 10027 4174 10028 4174 10022 4162 9962
      4138 9971 4113 10015
TIME...MOT...LOC 2336Z 292DEG 31KT 4162 10023 4152 10026 4145 10052 

HAIL...0.88IN
WIND...60MPH
 
$$

Jurgensen
2 follow-up statements
411 
WWUS53 KLBF 132356
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
656 PM CDT Thu May 13 2021

NEC171-140005-
/O.CAN.KLBF.SV.W.0009.000000T0000Z-210514T0015Z/
Thomas NE-
656 PM CDT Thu May 13 2021

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

The storms which prompted the warning have exited the area. 
Therefore, the warning has been cancelled.

LAT...LON 4139 10057 4174 10022 4162 9962 4138 9971
      4113 10015
TIME...MOT...LOC 2355Z 290DEG 31KT 4157 10003 4147 10006 4140 10032 

$$

NEC041-111-113-140015-
/O.CON.KLBF.SV.W.0009.000000T0000Z-210514T0015Z/
Lincoln NE-Logan NE-Custer NE-
656 PM CDT Thu May 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHEASTERN LINCOLN...SOUTHEASTERN LOGAN AND WESTERN CUSTER
COUNTIES...

At 655 PM CDT, severe thunderstorms were located along a line
extending from 9 miles west of Anselmo to 14 miles northwest of
Callaway to 6 miles west of Arnold, 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...
Arnold, Callaway, Merna, Anselmo, Gandy, Victoria Springs State
Recreation Area, Lillian, Logan, Etna, Milldale, Tarboz Lake,
Pleasant Hill, Hoagland and Finchville.

This includes the following highways...
 Highway 2 between mile markers 253 and 274.
 Highway 92 between mile markers 233 and 273.
 Highway 83 between mile markers 104 and 110.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

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 4139 10057 4174 10022 4162 9962 4138 9971
      4113 10015
TIME...MOT...LOC 2355Z 290DEG 31KT 4157 10003 4147 10006 4140 10032 

HAIL...0.88IN
WIND...60MPH
 
$$

Jurgensen
463 
WWUS53 KLBF 140014
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
714 PM CDT Thu May 13 2021

NEC041-111-113-140024-
/O.EXP.KLBF.SV.W.0009.000000T0000Z-210514T0015Z/
Lincoln NE-Logan NE-Custer NE-
714 PM CDT Thu May 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LINCOLN...
SOUTHEASTERN LOGAN AND WESTERN CUSTER COUNTIES WILL EXPIRE AT 715 PM
CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

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

LAT...LON 4139 10057 4174 10022 4162 9962 4138 9971
      4113 10015
TIME...MOT...LOC 0014Z 292DEG 31KT 4151 9984 4141 9987 4134 10013 

$$

Jurgensen

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 3:04 PM CDTSpecial Weather StatementLBFCherry41 min
May 13, 3:12 PM CDTSpecial Weather StatementLBFCherry48 min
May 13, 3:17 PM CDTSpecial Weather StatementLBFGrant43 min
May 13, 3:44 PM CDTSevere Thunderstorm WarningLBFGrant, Sheridan46 min
May 13, 3:49 PM CDTSevere Thunderstorm WarningLBFGarden41 min
May 13, 4:12 PM CDTSpecial Weather StatementLBFThomas48 min
May 13, 4:27 PM CDTSpecial Weather StatementLBFArthur, Grant48 min
May 13, 4:36 PM CDTSpecial Weather StatementLBFChase24 min
May 13, 4:43 PM CDTSpecial Weather StatementLBFArthur47 min
May 13, 4:53 PM CDTSevere Thunderstorm WarningLBFArthur, Garden, Grant52 min
May 13, 4:56 PM CDTSpecial Weather StatementLBFThomas49 min
May 13, 4:58 PM CDTSpecial Weather StatementLBFChase47 min
May 13, 5:44 PM CDTSevere Thunderstorm WarningLBFArthur, Keith46 min
May 13, 6:10 PM CDTSpecial Weather StatementLBFLogan50 min
May 13, 6:12 PM CDTSevere Thunderstorm WarningLBFArthur, Keith, Lincoln, McPherson, Perkins48 min
May 13, 6:30 PM CDTSpecial Weather StatementLBFMcPherson45 min
May 13, 6:50 PM CDTSevere Thunderstorm WarningLBFHayes, Keith, Lincoln, Perkins40 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.