Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 79, NWS North Platte, NE

July 2, 2017Garden County, Grant County, Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 2, 2017, 4:30 PM MDT for Garden County, Grant County, Sheridan County, Nebraska. It was in force for 30 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
Jul 2, 2017, 4:30 PM MDT (22:30 UTC)
Expired
Jul 2, 2017, 5:00 PM MDT
In force
30 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

Counties Garden County, NE, Grant County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 126 km from the middle of the area, began a volume at 22:31 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
Jul 2, 4:36 PM MDTHAIL 1.7518 W Hyannis, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.5 hours before the alert went out and 154 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 2017-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 535 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2017-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.193958Sfc1 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
535 J/kg
Mixed-layer CIN
-338 J/kg
Mixed-layer LCL
1509 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

657 
WUUS53 KLBF 022230
SVRLBF
NEC069-075-161-022300-
/O.NEW.KLBF.SV.W.0079.170702T2230Z-170702T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
430 PM MDT SUN JUL 2 2017

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  West central Grant County in west central Nebraska...
  Northeastern Garden County in the Panhandle of Nebraska...
  Southeastern Sheridan County in the Panhandle of Nebraska...

* Until 500 PM MDT

* At 430 PM MDT, a severe thunderstorm was located 10 miles southwest
  of Ashby, or 34 miles northwest of Arthur, moving east at 15 mph.

  HAZARD...Ping pong ball size hail. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect 
           damage to roofs, siding, windows, and vehicles. 

* Locations impacted include...
  Dominick Lake, Kincaid Lake and Bingham. 

This includes Highway 2 between mile markers 125 and 134.
 
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 4190 10221 4206 10215 4201 10191 4183 10199
TIME...MOT...LOC 2230Z 290DEG 14KT 4196 10211 

HAIL...1.50IN
WIND...<50MPH
 
$$

ET
2 follow-up statements
322 
WWUS53 KLBF 022237
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
437 PM MDT SUN JUL 2 2017

NEC069-075-161-022300-
/O.CON.KLBF.SV.W.0079.000000T0000Z-170702T2300Z/
Grant NE-Garden NE-Sheridan NE-
437 PM MDT SUN JUL 2 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT
FOR WEST CENTRAL GRANT...NORTHEASTERN GARDEN AND SOUTHEASTERN
SHERIDAN COUNTIES...

At 437 PM MDT, a severe thunderstorm was located 15 miles southwest
of Mullen, and is nearly stationary.

HAZARD...Golf ball size hail. 

SOURCE...Public. 

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles. 

Locations impacted include...
Dominick Lake, Kincaid Lake and Bingham. 

This includes Highway 2 between mile markers 125 and 134.
 
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 4190 10221 4206 10215 4201 10191 4183 10199
TIME...MOT...LOC 2237Z 290DEG 14KT 4187 10125 

HAIL...1.75IN
WIND...<50MPH
 
$$

ET
862 
WWUS53 KLBF 022246
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
446 PM MDT SUN JUL 2 2017

NEC161-022256-
/O.CAN.KLBF.SV.W.0079.000000T0000Z-170702T2300Z/
Sheridan NE-
446 PM MDT SUN JUL 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SHERIDAN COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4201 10208 4201 10201 4203 10201 4201 10191
      4185 10198 4183 10200 4185 10205 4188 10213
TIME...MOT...LOC 2246Z 293DEG 17KT 4193 10202 

$$

NEC069-075-022300-
/O.CON.KLBF.SV.W.0079.000000T0000Z-170702T2300Z/
Grant NE-Garden NE-
446 PM MDT SUN JUL 2 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT
FOR WEST CENTRAL GRANT AND NORTHEASTERN GARDEN COUNTIES...

At 446 PM MDT, a severe thunderstorm was located 7 miles southwest of
Ashby, or 30 miles northwest of Arthur, moving southeast at 20 mph.

HAZARD...Golf ball size hail. 

SOURCE...Public. 

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles. 

Locations impacted include...
Dominick Lake.

This includes Highway 2 between mile markers 133 and 134.
 
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 4201 10208 4201 10201 4203 10201 4201 10191
      4185 10198 4183 10200 4185 10205 4188 10213
TIME...MOT...LOC 2246Z 293DEG 17KT 4193 10202 

HAIL...1.75IN
WIND...<50MPH
 
$$

ET

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 11:41 PM MDTSpecial Weather StatementLBFFrontier49 min
Jul 2, 1:58 PM MDTSpecial Weather StatementLBFGarfield47 min
Jul 2, 2:11 PM MDTSevere Thunderstorm WarningLBFGarfield, Wheeler49 min
Jul 2, 2:48 PM MDTSpecial Weather StatementLBFGarfield42 min
Jul 2, 2:53 PM MDTSpecial Weather StatementLBFHooker52 min
Jul 2, 3:02 PM MDTSpecial Weather StatementLBFSheridan43 min
Jul 2, 3:09 PM MDTSevere Thunderstorm WarningLBFSheridan51 min
Jul 2, 3:12 PM MDTSpecial Weather StatementLBFLogan48 min
Jul 2, 3:27 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer28 min
Jul 2, 3:33 PM MDTSevere Thunderstorm WarningLBFCherry, Hooker42 min
Jul 2, 3:43 PM MDTSpecial Weather StatementLBFLogan47 min
Jul 2, 3:48 PM MDTSpecial Weather StatementLBFHooker42 min
Jul 2, 3:56 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer, Logan, Thomas49 min
Jul 2, 3:56 PM MDTSevere Thunderstorm WarningLBFGarden, Sheridan49 min
Jul 2, 4:03 PM MDTSpecial Weather StatementLBFSheridan42 min
Jul 2, 4:12 PM MDTSevere Thunderstorm WarningLBFCuster, Garfield, Loup48 min
Jul 2, 4:14 PM MDTSevere Thunderstorm WarningLBFSheridan24 min
Jul 2, 4:17 PM MDTSevere Thunderstorm WarningLBFHooker43 min
Jul 2, 4:41 PM MDTSevere Thunderstorm WarningLBFSheridan18 min
Jul 2, 4:43 PM MDTSevere Thunderstorm WarningLBFLogan47 min
Jul 2, 4:51 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer39 min
Jul 2, 4:52 PM MDTSevere Thunderstorm WarningLBFGrant, Hooker23 min
Jul 2, 4:54 PM MDTSevere Thunderstorm WarningLBFGrant23 min
Jul 2, 4:58 PM MDTSevere Thunderstorm WarningLBFLoup30 min
Jul 2, 5:07 PM MDTSevere Thunderstorm WarningLBFMcPherson38 min
Jul 2, 5:10 PM MDTSpecial Weather StatementLBFDeuel35 min
Jul 2, 5:16 PM MDTSevere Thunderstorm WarningLBFArthur, Grant, Hooker29 min
Jul 2, 5:21 PM MDTSevere Thunderstorm WarningLBFDeuel, Garden24 min
Jul 2, 5:26 PM MDTSevere Thunderstorm WarningLBFGarden34 min
Jul 2, 5:28 PM MDTSevere Thunderstorm WarningLBFCuster62 min
Jul 2, 5:33 PM MDTSpecial Weather StatementLBFBlaine42 min
Jul 2, 5:37 PM MDTSevere Thunderstorm WarningLBFMcPherson23 min
Jul 2, 5:47 PM MDTSpecial Weather StatementLBFLincoln43 min
Jul 2, 5:48 PM MDTSpecial Weather StatementLBFMcPherson27 min
Jul 2, 5:49 PM MDTTornado WarningLBFCuster26 min
Jul 2, 5:53 PM MDTSpecial Weather StatementLBFDeuel37 min
Jul 2, 5:55 PM MDTSevere Thunderstorm WarningLBFLincoln50 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2017Every severe thunderstorm warning in 2017

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.