Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 35, NWS North Platte, NE

April 14, 2012Blaine County, Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 14, 2012, 7:05 PM CDT for Blaine County, Custer County, Nebraska. It was in force for 40 min. 4 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
Apr 14, 2012, 7:05 PM CDT (00:05 UTC)
Expired
Apr 14, 2012, 7:45 PM CDT
In force
40 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Blaine County, NE, Custer County, NE

The radar

The North Platte radar (KLNX), 63 km from the middle of the area, began a volume at 00:08 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
Apr 14, 7:38 PM CDTHAIL 11 Nw Milburn, NEHAIL ALMOST COVERING THE GROUND.
Apr 14, 7:38 PM CDTTORNADO3 Ne Anselmo, NE
Apr 14, 7:45 PM CDTFUNNEL CLOUD7 Ne Anselmo, NE
Apr 14, 7:45 PM CDTHAIL 2.757 Ne Anselmo, NEBASEBALL SIZED HAIL CAUSED EXTENSIVE DAMAGE TO WINDOWS AND SIDING.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 14, 2:33 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.1 hours before the alert went out and 296 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, Omaha, NE at 00:00Z on 2012-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Omaha, NE at 00:00Z on 2012-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 276 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
276 m²/s²
0-3 km storm-relative helicity
483 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

912 
WUUS53 KLBF 150005
SVRLBF
NEC009-041-150045-
/O.NEW.KLBF.SV.W.0035.120415T0005Z-120415T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
705 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BLAINE COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHWESTERN CUSTER COUNTY IN CENTRAL NEBRASKA...

* UNTIL 745 PM CDT

* AT 704 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 11 MILES NORTHEAST OF ARNOLD...AND MOVING
  NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ANSELMO AROUND 720 PM CDT.
  MILBURN DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA AND MILBURN
  AROUND 735 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HIGHWAY
2 MILE MARKER 250.

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.

&&

LAT...LON 4199 9969 4159 9971 4144 10010 4158 10025
TIME...MOT...LOC 0005Z 230DEG 34KT 4157 10008
WIND...HAIL <50MPH 1.00IN

$$

POWER
3 follow-up statements
599 
WWUS53 KLBF 150018
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
718 PM CDT SAT APR 14 2012

NEC009-041-150045-
/O.CON.KLBF.SV.W.0035.000000T0000Z-120415T0045Z/
BLAINE NE-CUSTER NE-
718 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
CUSTER AND SOUTHEASTERN BLAINE COUNTIES UNTIL 745 PM CDT...

AT 713 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 7 MILES WEST OF ANSELMO...OR 17 MILES NORTHEAST OF
ARNOLD...MOVING NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MILBURN DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA AND MILBURN
  AROUND 735 PM CDT.

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.

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

&&

LAT...LON 4159 10019 4199 9969 4159 9971 4144 10010
TIME...MOT...LOC 0018Z 230DEG 34KT 4165 9995
WIND...HAIL <50MPH 1.00IN

$$

JACOBS
694 
WWUS53 KLBF 150025
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
725 PM CDT SAT APR 14 2012

NEC009-041-150045-
/O.CON.KLBF.SV.W.0035.000000T0000Z-120415T0045Z/
BLAINE NE-CUSTER NE-
725 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
CUSTER AND SOUTHEASTERN BLAINE COUNTIES UNTIL 745 PM CDT...

AT 722 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED NEAR ANSELMO...OR 18 MILES SOUTH OF
BREWSTER...MOVING NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MILBURN DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA AND MILBURN
  AROUND 735 PM CDT.

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.

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

&&

LAT...LON 4162 10011 4199 9969 4159 9971 4147 10002
TIME...MOT...LOC 0025Z 230DEG 34KT 4169 9988
WIND...HAIL <50MPH 1.50IN

$$

JACOBS
893 
WWUS53 KLBF 150029
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
729 PM CDT SAT APR 14 2012

NEC009-041-150045-
/O.CON.KLBF.SV.W.0035.000000T0000Z-120415T0045Z/
BLAINE NE-CUSTER NE-
729 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
CUSTER AND SOUTHEASTERN BLAINE COUNTIES UNTIL 745 PM CDT...

AT 727 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
BASEBALL SIZE.  THIS STORM WAS LOCATED 6 MILES SOUTHWEST OF MILBURN
DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA...OR 16 MILES SOUTH OF
BREWSTER...MOVING NORTHEAST AT 40 MPH.

IN ADDITION...AT 727 PM CDT BASEBALL SIZE HAIL WAS REPORTED 4 MILES 
SOUTHWEST OF ANSELMO WAS REPORTED WITH THIS STORM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MILBURN DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA AND MILBURN
  AROUND 735 PM CDT.

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.

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

&&

LAT...LON 4151 9998 4164 10009 4199 9969 4159 9971
TIME...MOT...LOC 0029Z 230DEG 34KT 4171 9984
WIND...HAIL <50MPH 2.75IN

$$

JACOBS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 7:01 PM CDTTornado WarningLBFBlaine, Loup16 min
Apr 14, 7:18 PM CDTSevere Thunderstorm WarningLBFLincoln42 min
Apr 14, 7:35 PM CDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan40 min
Apr 14, 7:41 PM CDTTornado WarningLBFBlaine, Custer, Loup34 min
Apr 14, 8:07 PM CDTTornado WarningLBFGarfield, Holt, Loup, Rock25 min
Apr 14, 8:13 PM CDTSevere Thunderstorm WarningLBFCuster47 min
Apr 14, 8:15 PM CDTSevere Thunderstorm WarningLBFCuster33 min
Apr 14, 8:29 PM CDTSevere Thunderstorm WarningLBFGarfield, Holt, Loup, Rock, Wheeler46 min
Apr 14, 8:39 PM CDTSevere Thunderstorm WarningLBFCuster, Garfield, Loup51 min
Apr 14, 8:47 PM CDTSevere Thunderstorm WarningLBFKeith, Lincoln, McPherson43 min
Apr 14, 9:32 PM CDTSevere Thunderstorm WarningLBFCuster43 min
Apr 14, 11:18 PM CDTRiver Flood WarningLBFLincoln21 hr
Apr 15, 3:59 PM CDTHigh Wind WarningLBFBlaine, Boyd, Brown, Cherry, Custer, Garfield and 6 more6 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2012Every 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.