Alert archive / Nebraska / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 96, NWS North Platte, NE

June 19, 20114 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 19, 2011, 5:57 PM CDT for 4 counties in Nebraska. It was in force for 33 min. 3 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 19, 2011, 5:57 PM CDT (22:57 UTC)
Expired
Jun 19, 2011, 6:30 PM CDT
In force
33 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Boyd County, NE, Holt County, NE, Keya Paha County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 139 km from the middle of the area, began a volume at 23:00 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
Jun 19, 6:02 PM CDTHAIL 2.51 Sw Newport, NETHE HAIL LASTED FOR 20 MINUTES.
Jun 19, 6:36 PM CDTHAIL 1.755 Nne Stuart, NE
Jun 19, 6:38 PM CDTHAIL 1.756 N Stuart, 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, 11.0 hours before the alert went out and 213 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 2011-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 324 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 12:00Z on 2011-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
324 J/kg
Mixed-layer CIN
-277 J/kg
Mixed-layer LCL
1660 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

279 
WUUS53 KLBF 192257
SVRLBF
NEC015-089-103-149-192330-
/O.NEW.KLBF.SV.W.0096.110619T2257Z-110619T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
557 PM CDT SUN JUN 19 2011

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL BOYD COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHWESTERN HOLT COUNTY IN NORTH CENTRAL NEBRASKA...
  EASTERN KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHEASTERN ROCK COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 630 PM CDT

* AT 551 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED NEAR NEWPORT...OR 11 MILES EAST OF BASSETT...AND MOVING    
  NORTHEAST AT 15 MPH.  THIS WARNING REPLACES THE PREVIOUS SEVERE    
  THUNDERSTORM WARNING FOR THE SAME AREA.

  AT 553 PM CDT HALF DOLLAR SIZE HAIL WAS REPORTED IN THE TOWN OF    
  NEWPORT WITH THIS STORM.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
  KEYA PAHA...NORTHEASTERN ROCK...NORTHWESTERN HOLT AND WEST CENTRAL
  BOYD COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4299 9943 4279 9881 4253 9933 4259 9947
TIME...MOT...LOC 2256Z 218DEG 14KT 4261 9930
WIND...HAIL 60MPH 1.50IN

$$

JACOBS
2 follow-up statements
739 
WWUS53 KLBF 192304
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
604 PM CDT SUN JUN 19 2011

NEC015-089-103-149-192330-
/O.CON.KLBF.SV.W.0096.000000T0000Z-110619T2330Z/
BOYD NE-HOLT NE-KEYA PAHA NE-ROCK NE-
604 PM CDT SUN JUN 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
ROCK...EASTERN KEYA PAHA...NORTHWESTERN HOLT AND WEST CENTRAL BOYD
COUNTIES UNTIL 630 PM CDT...

AT 600 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
NEWPORT...OR 13 MILES EAST OF BASSETT...MOVING NORTHEAST AT 15 MPH.

IN ADDITION...AT BASEBALL SIZE HAIL WAS REPORTED 1.5 MILES SOUTHWEST 
OF NEWPORT WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  MILLS...HIGHWAY 137 MILE MARKER 10 AND HIGHWAY 137 MILE MARKER 20.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4299 9943 4279 9881 4253 9933 4259 9947
TIME...MOT...LOC 2304Z 218DEG 14KT 4263 9927
WIND...HAIL 60MPH 1.50IN

$$

JACOBS
534 
WWUS53 KLBF 192317
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
617 PM CDT SUN JUN 19 2011

NEC015-089-103-149-192330-
/O.CON.KLBF.SV.W.0096.000000T0000Z-110619T2330Z/
BOYD NE-HOLT NE-KEYA PAHA NE-ROCK NE-
617 PM CDT SUN JUN 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
ROCK...EASTERN KEYA PAHA...NORTHWESTERN HOLT AND WEST CENTRAL BOYD
COUNTIES UNTIL 630 PM CDT...

AT 614 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
BASEBALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM
WAS LOCATED 6 MILES NORTHEAST OF NEWPORT...OR 16 MILES EAST OF
BASSETT...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  MILLS...HIGHWAY 137 MILE MARKER 10 AND HIGHWAY 137 MILE MARKER 20.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

&&

LAT...LON 4299 9943 4279 9881 4253 9933 4259 9947
TIME...MOT...LOC 2317Z 218DEG 14KT 4267 9923
WIND...HAIL 60MPH 2.75IN

$$

JACOBS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 5:22 PM CDTSevere Thunderstorm WarningLBFHolt, Keya Paha, Rock38 min
Jun 19, 6:15 PM CDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan45 min
Jun 19, 6:22 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt, Rock38 min
Jun 19, 6:31 PM CDTTornado WarningLBFLincoln, Logan29 min
Jun 19, 6:34 PM CDTSevere Thunderstorm WarningLBFHayes41 min
Jun 19, 6:54 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt26 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2011Every 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.