Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 84, NWS North Platte, NE

July 9, 2021Garden County, Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 9, 2021, 6:01 PM MDT for Garden County, Sheridan 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
Jul 9, 2021, 6:01 PM MDT (00:01 UTC)
Expired
Jul 9, 2021, 6:45 PM MDT
In force
44 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Tornado
Possible
Hail
1.75 in
Wind
60.0 mph

Counties Garden County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 165 km from the middle of the area, began a volume at 00:05 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.

IssuedProductOfficeLasted
Jul 9, 2:16 PM MDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.0 hours before the alert went out and 191 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 2021-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2799 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 2021-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.19395878Sfc1 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
2799 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1859 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.9

Open this sounding in Storm Lab

The text

As transmitted.

433 
WUUS53 KLBF 100001
SVRLBF
NEC069-161-100045-
/O.NEW.KLBF.SV.W.0084.210710T0001Z-210710T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
601 PM MDT Fri Jul 9 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northern Garden County in the Panhandle of Nebraska...
  Southern Sheridan County in the Panhandle of Nebraska...

* Until 645 PM MDT.

* At 601 PM MDT, a severe thunderstorm was located near Antioch, or
  13 miles southeast of Alliance, moving soueast at 40 mph.

  HAZARD...Golf 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...
  Ellsworth, Antioch, Watson Lake, Patterson Lake, Deer Lake, Britton
  Lake, Kincaid Lake, Kennedy Lake, Wild Horse Flats, Snow Lake,
  Miles Lake, Mumper, Lakeside, Herman Lake, Jerry Lake, Adams Flats,
  Tralnor Lake and Wickson Lake.

This includes the following highways...
 Highway 250 between mile markers 1 and 10.
 Highway 2 between mile markers 96 and 129.

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 this storm. 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.

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

&&

LAT...LON 4214 10274 4223 10205 4164 10209 4182 10268
      4200 10268 4201 10270 4209 10270 4210 10273
TIME...MOT...LOC 0001Z 287DEG 68KT 4199 10265 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...60MPH
 
$$

Roberg
1 follow-up statement
964 
WWUS53 KLBF 100018
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
618 PM MDT Fri Jul 9 2021

NEC069-161-100045-
/O.CON.KLBF.SV.W.0084.000000T0000Z-210710T0045Z/
Garden NE-Sheridan NE-
618 PM MDT Fri Jul 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM MDT
FOR NORTHERN GARDEN AND SOUTHERN SHERIDAN COUNTIES...

At 618 PM MDT, a severe thunderstorm was located near Antioch, or 17
miles southeast of Alliance, moving southeast at 25 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...
Ellsworth, Antioch, Watson Lake, Patterson Lake, Deer Lake, Britton
Lake, Kincaid Lake, Kennedy Lake, Wild Horse Flats, Snow Lake, Miles
Lake, Mumper, Lakeside, Herman Lake, Jerry Lake, Adams Flats, Tralnor
Lake and Wickson Lake.

This includes the following highways...
 Highway 250 between mile markers 1 and 10.
 Highway 2 between mile markers 96 and 129.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4214 10274 4223 10205 4164 10209 4182 10268
      4200 10268 4201 10270 4209 10270 4210 10273
TIME...MOT...LOC 0018Z 279DEG 20KT 4199 10257 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

Roberg

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 6:45 PM MDTSevere Thunderstorm WarningLBFArthur, Garden, Grant45 min
Jul 9, 6:49 PM MDTSpecial Weather StatementLBFBlaine26 min
Jul 9, 7:06 PM MDTSpecial Weather StatementLBFMcPherson24 min
Jul 9, 7:11 PM MDTSpecial Weather StatementLBFLoup34 min
Jul 9, 7:30 PM MDTSpecial Weather StatementLBFLoup45 min
Jul 9, 7:31 PM MDTSpecial Weather StatementLBFMcPherson29 min
Jul 9, 7:45 PM MDTSpecial Weather StatementLBFCuster30 min
Jul 9, 7:58 PM MDTSevere Thunderstorm WarningLBFCuster47 min
Jul 9, 7:59 PM MDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan46 min
Jul 9, 8:02 PM MDTSevere Thunderstorm WarningLBFCuster43 min
Jul 9, 8:04 PM MDTSpecial Weather StatementLBFHolt41 min
Jul 9, 8:08 PM MDTSpecial Weather StatementLBFWheeler52 min
Jul 9, 8:23 PM MDTSevere Thunderstorm WarningLBFHolt52 min
Jul 9, 8:27 PM MDTSevere Thunderstorm WarningLBFCuster33 min
Jul 9, 8:39 PM MDTSpecial Weather StatementLBFHolt36 min
Jul 9, 8:42 PM MDTSevere Thunderstorm WarningLBFCuster48 min
Jul 9, 8:50 PM MDTSevere Thunderstorm WarningLBFHolt40 min
Jul 9, 9:31 PM MDTSevere Thunderstorm WarningLBFSheridan59 min
Jul 9, 10:05 PM MDTSevere Thunderstorm WarningLBFArthur, Cherry, Garden, Grant, Sheridan55 min
Jul 9, 10:21 PM MDTSpecial Weather StatementLBFSheridan39 min
Jul 9, 10:53 PM MDTSevere Thunderstorm WarningLBFArthur, Cherry, Garden, Grant, Hooker, Keith and 3 more67 min
Jul 9, 10:57 PM MDTTornado WarningLBFArthur, Grant, Hooker, McPherson33 min
Jul 9, 11:45 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer, Hooker, Lincoln, Logan, McPherson and 1 more60 min
Jul 10, 12:20 AM MDTSpecial Weather StatementLBFLincoln40 min
Jul 10, 12:42 AM MDTSpecial Weather StatementLBFCuster48 min
Jul 10, 1:18 AM MDTSpecial Weather StatementLBFLincoln42 min
Jul 10, 1:22 AM MDTSevere Thunderstorm WarningLBFLincoln53 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.