Alert archive / Nebraska / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS North Platte, NE

June 9, 2011Keith County, Lincoln County, Perkins County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 9, 2011, 6:15 AM MDT for Keith County, Lincoln County, Perkins County, Nebraska. It was in force for 45 min. 2 reports 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 9, 2011, 6:15 AM MDT (12:15 UTC)
Expired: Jun 9, 2011, 7:00 AM MDT
In force: 45 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

Counties Keith County, NE, Lincoln County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 96 km from the middle of the area, began a volume at 12:16 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 9, 6:38 AM MDT	HAIL 1	5 Wsw Sutherland, NE
Jun 9, 6:44 AM MDT	HAIL 1	2 W Sutherland, 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, 0.3 hours before the alert went out and 50 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 892 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

118 
WUUS53 KLBF 091215
SVRLBF
NEC101-111-135-091300-
/O.NEW.KLBF.SV.W.0049.110609T1215Z-110609T1300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
715 AM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...
  NORTHEASTERN PERKINS COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 800 AM CDT/700 AM MDT/

* AT 611 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED 6 MILES SOUTH OF PAXTON...OR 20 MILES EAST
  OF OGALLALA...AND MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PAXTON...SARBEN...SUTHERLAND RESERVOIR STATE RECREATION AREA...
  SUTHERLAND...HERSHEY...INTERSTATE 80 MILE MARKER 150 AND HIGHWAY 97
  MILE MARKER 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 4139 10127 4139 10055 4092 10134 4106 10150
TIME...MOT...LOC 1215Z 226DEG 35KT 4106 10133
WIND...HAIL <50MPH 1.50IN

$$

SPRINGER

3 follow-up statements

803 
WWUS53 KLBF 091228
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
728 AM CDT THU JUN 9 2011

NEC101-111-135-091300-
/O.CON.KLBF.SV.W.0049.000000T0000Z-110609T1300Z/
KEITH NE-LINCOLN NE-PERKINS NE-
728 AM CDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
PERKINS...NORTHWESTERN LINCOLN AND EASTERN KEITH COUNTIES UNTIL 800
AM CDT/700 AM MDT/...

AT 621 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED NEAR SARBEN...OR 23 MILES EAST OF OGALLALA...
MOVING NORTHEAST AT 40 MPH.

IN ADDITION...AT 625 AM MDT (725 AM CDT)...QUARTER-SIZED HAIL WAS 
REPORTED WITH THIS STORM 7 MILES SOUTH OF PAXTON.

LOCATIONS IMPACTED INCLUDE...
  SUTHERLAND RESERVOIR STATE RECREATION AREA...SUTHERLAND...HERSHEY
  AND HIGHWAY 97 MILE MARKER 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 4139 10127 4139 10055 4092 10134 4106 10150
TIME...MOT...LOC 1226Z 226DEG 35KT 4113 10122
WIND...HAIL <50MPH 1.50IN

$$

SPRINGER

032 
WWUS53 KLBF 091237
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
737 AM CDT THU JUN 9 2011

NEC101-135-091246-
/O.CAN.KLBF.SV.W.0049.000000T0000Z-110609T1300Z/
KEITH NE-PERKINS NE-
637 AM MDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PERKINS AND
EASTERN KEITH COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF PERKINS AND 
KEITH COUNTIES. 

LAT...LON 4105 10125 4105 10127 4139 10127 4139 10055
      4098 10125
TIME...MOT...LOC 1236Z 226DEG 35KT 4120 10112

$$

NEC111-091300-
/O.CON.KLBF.SV.W.0049.000000T0000Z-110609T1300Z/
LINCOLN NE-
737 AM CDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
LINCOLN COUNTY UNTIL 800 AM CDT...

AT 735 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED NEAR SUTHERLAND...OR 19 MILES WEST OF NORTH
PLATTE...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  HERSHEY AND HIGHWAY 97 MILE MARKER 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 4105 10125 4105 10127 4139 10127 4139 10055
      4098 10125
TIME...MOT...LOC 1236Z 226DEG 35KT 4120 10112
WIND...HAIL <50MPH 1.50IN

$$

SPRINGER

486 
WWUS53 KLBF 091258
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
758 AM CDT THU JUN 9 2011

NEC111-091308-
/O.EXP.KLBF.SV.W.0049.000000T0000Z-110609T1300Z/
LINCOLN NE-
758 AM CDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LINCOLN COUNTY
WILL EXPIRE AT 800 AM CDT/700 AM MDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER...NICKEL SIZED HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH 
THIS THUNDERSTORM.

LAT...LON 4105 10125 4105 10127 4139 10127 4139 10055
      4098 10125
TIME...MOT...LOC 1258Z 226DEG 35KT 4135 10091

$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 5:53 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln	52 min
Jun 9, 6:54 AM MDT	Severe Thunderstorm Warning	LBF	Custer	51 min
Jun 9, 7:34 AM MDT	Severe Thunderstorm Warning	LBF	Custer	41 min
Jun 9, 7:49 AM MDT	Severe Thunderstorm Warning	LBF	Wheeler	41 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2011 Every severe thunderstorm warning in 2011

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.