Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 116, NWS North Platte, NE

June 7, 2012Arthur County, Garden County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 7, 2012, 8:39 PM MDT for Arthur County, Garden County, Nebraska. It was in force for 51 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 7, 2012, 8:39 PM MDT (02:39 UTC)
Expired: Jun 7, 2012, 9:30 PM MDT
In force: 51 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Arthur County, NE, Garden County, NE

The radar

The North Platte radar (KLNX), 131 km from the middle of the area, began a volume at 02:41 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 7, 8:48 PM MDT	HAIL 1.5	10 Ne Oshkosh, 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 00:00Z, 2.7 hours before the alert went out and 124 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: 613 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 2133 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

916 
WUUS53 KLBF 080239
SVRLBF
NEC005-069-080330-
/O.NEW.KLBF.SV.W.0116.120608T0239Z-120608T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
839 PM MDT THU JUN 7 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...
  EAST CENTRAL GARDEN COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 930 PM MDT

* AT 837 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BLUEWATER BATTLEFIELD STATE HISTORICAL PARK...OR 7 MILES EAST OF
  OSHKOSH...AND MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EAST
  CENTRAL GARDEN AND WESTERN ARTHUR COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4168 10187 4146 10172 4139 10196 4139 10205
      4136 10206 4131 10222 4145 10235
TIME...MOT...LOC 0239Z 242DEG 18KT 4141 10221
WIND...HAIL 60MPH 1.00IN

$$

KNUTSVIG

3 follow-up statements

957 
WWUS53 KLBF 080249
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
849 PM MDT THU JUN 7 2012

NEC005-069-080330-
/O.CON.KLBF.SV.W.0116.000000T0000Z-120608T0330Z/
GARDEN NE-ARTHUR NE-
849 PM MDT THU JUN 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ARTHUR AND EAST CENTRAL GARDEN COUNTIES UNTIL 930 PM MDT...

AT 846 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING PING PONG BALL SIZE HAIL.  THIS STORM WAS
LOCATED NEAR BLUEWATER BATTLEFIELD STATE HISTORICAL PARK...OR 10
MILES EAST OF OSHKOSH...MOVING NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EAST 
CENTRAL GARDEN AND SOUTHWESTERN ARTHUR COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4168 10187 4146 10172 4139 10196 4139 10205
      4136 10206 4136 10219 4147 10225
TIME...MOT...LOC 0249Z 242DEG 23KT 4145 10213
WIND...HAIL <50MPH 1.50IN

$$

KNUTSVIG

486 
WWUS53 KLBF 080311
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
911 PM MDT THU JUN 7 2012

NEC005-069-080330-
/O.CON.KLBF.SV.W.0116.000000T0000Z-120608T0330Z/
GARDEN NE-ARTHUR NE-
911 PM MDT THU JUN 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ARTHUR AND EAST CENTRAL GARDEN COUNTIES UNTIL 930 PM MDT...

AT 909 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED 8 MILES SOUTH OF BOURQUIM HILL...OR 15 MILES
WEST OF ARTHUR...MOVING NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EAST 
CENTRAL GARDEN AND SOUTHWESTERN ARTHUR COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4168 10187 4146 10172 4139 10196 4139 10205
      4136 10206 4136 10219 4147 10225
TIME...MOT...LOC 0311Z 238DEG 24KT 4154 10196
WIND...HAIL <50MPH 1.50IN

$$

KNUTSVIG

970 
WWUS53 KLBF 080330
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
930 PM MDT THU JUN 7 2012

NEC005-069-080340-
/O.EXP.KLBF.SV.W.0116.000000T0000Z-120608T0330Z/
GARDEN NE-ARTHUR NE-
930 PM MDT THU JUN 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ARTHUR AND EAST
CENTRAL GARDEN COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 4168 10187 4146 10172 4139 10196 4139 10205
      4136 10206 4136 10219 4147 10225
TIME...MOT...LOC 0311Z 238DEG 24KT 4154 10196

$$

KNUTSVIG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 8:36 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	24 min
Jun 7, 10:38 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	36 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2012 Every severe thunderstorm warning in 2012

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.