Alert archive / Nebraska / Tornado Warnings in 2012

Tornado Warning 15, NWS North Platte, NE

April 14, 2012Blaine County, Loup County, Nebraska

NWS North Platte, NE issued this tornado warning at Apr 14, 2012, 7:01 PM CDT for Blaine County, Loup County, Nebraska. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 14, 2012, 7:01 PM CDT (00:01 UTC)
Expired
Apr 14, 2012, 7:17 PM CDT
In force
16 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

Counties Blaine County, NE, Loup County, NE

The radar

The North Platte radar (KLNX), 88 km from the middle of the area, began a volume at 00:04 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.

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, 0.0 hours before the alert went out and 269 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.

925 
WFUS53 KLBF 150001
TORLBF
NEC009-115-150030-
/O.NEW.KLBF.TO.W.0015.120415T0001Z-120415T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
701 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BLAINE COUNTY IN NORTH CENTRAL NEBRASKA...
  LOUP COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 730 PM CDT

* AT 659 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES NORTHEAST OF MILBURN...OR 13 MILES
  SOUTHEAST OF BREWSTER...AND MOVING NORTHEAST AT 50 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  ALMERIA MEADOW STATE WILDLIFE MANAGEMENT AREA AROUND 710 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4174 9945 4175 9979 4209 9965 4208 9922
TIME...MOT...LOC 0001Z 203DEG 42KT 4183 9967

$$

STOPPKOTTE
2 follow-up statements
748 
WWUS53 KLBF 150013
SVSLBF

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

NEC009-115-150030-
/O.CON.KLBF.TO.W.0015.000000T0000Z-120415T0030Z/
BLAINE NE-LOUP NE-
713 PM CDT SAT APR 14 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR LOUP AND SOUTHEASTERN
BLAINE COUNTIES UNTIL 730 PM CDT...

AT 708 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR ALMERIA MEADOW STATE WILDLIFE MANAGEMENT
AREA...OR 14 MILES EAST OF BREWSTER...MOVING NORTHEAST AT 40 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF LOUP AND
SOUTHEASTERN BLAINE COUNTIES...INCLUDING THE FOLLOWING LOCATIONS
HIGHWAY 183 MILE MARKER 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4174 9945 4175 9979 4209 9965 4208 9922
TIME...MOT...LOC 0013Z 215DEG 35KT 4195 9957

$$

STOPPKOTTE
974 
WWUS53 KLBF 150017
SVSLBF

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

NEC009-115-150027-
/O.CAN.KLBF.TO.W.0015.000000T0000Z-120415T0030Z/
BLAINE NE-LOUP NE-
717 PM CDT SAT APR 14 2012

...THE TORNADO WARNING FOR LOUP AND SOUTHEASTERN BLAINE COUNTIES IS
CANCELLED...

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

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT.

LAT...LON 4174 9945 4175 9979 4209 9965 4208 9922
TIME...MOT...LOC 0017Z 215DEG 35KT 4198 9954

$$

STOPPKOTTE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 7:05 PM CDTSevere Thunderstorm WarningLBFBlaine, Custer40 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

Tornado Warnings in Nebraska, 2012Every tornado warning in 2012Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.