Alert archive / Nebraska / Tornado Warnings in 2012

Tornado Warning 3, NWS Omaha, NE

April 14, 2012Nemaha County, Otoe County, Nebraska

NWS Omaha, NE issued this tornado warning at Apr 14, 2012, 5:14 PM CDT for Nemaha County, Otoe County, Nebraska. It was in force for 31 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, 5:14 PM CDT (22:14 UTC)
Expired
Apr 14, 2012, 5:45 PM CDT
In force
31 min
Issued by
NWS Omaha, NE
Area
Storm-based polygon

Counties Nemaha County, NE, Otoe County, NE

The radar

The Omaha radar (KOAX), 97 km from the middle of the area, began a volume at 22:16 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 14, 12:00 PM CDTTornado Watch PDSSPC7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.2 hours before the alert went out and 97 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 12:00Z on 2012-04-14Temperature 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 12:00Z on 2012-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
1847 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

898 
WFUS53 KOAX 142214
TOROAX

NEC127-131-142245-
/O.NEW.KOAX.TO.W.0003.120414T2214Z-120414T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
514 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN OTOE COUNTY IN SOUTHEASTERN NEBRASKA...
  NORTHWESTERN NEMAHA COUNTY IN SOUTHEASTERN NEBRASKA...

* UNTIL 545 PM CDT

* AT 512 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR 
  TALMAGE...OR 36 MILES WEST OF TARKIO. DOPPLER RADAR SHOWED THIS 
  TORNADO MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TALMAGE AND JULIAN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4048 9606 4054 9607 4062 9579 4055 9576
      4053 9577 4053 9575 4050 9574
TIME...MOT...LOC 2212Z 259DEG 36KT 4051 9607 

$$

BOUSTEAD
3 follow-up statements
508 
WWUS53 KOAX 142221
SVSOAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
521 PM CDT SAT APR 14 2012

NEC127-131-142245-
/O.CON.KOAX.TO.W.0003.000000T0000Z-120414T2245Z/
OTOE NE-NEMAHA NE-
521 PM CDT SAT APR 14 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR 
EXTREME SOUTHEASTERN OTOE AND EXTREME NORTH CENTRAL NEMAHA 
COUNTIES...

AT 513 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS 
TORNADIC STORM WAS LOCATED NEAR TALMAGE...OR 33 MILES WEST OF 
TARKIO...MOVING EAST AT 45 MPH. 

LOCATIONS IMPACTED INCLUDE...
TALMAGE AND JULIAN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4050 9601 4054 9603 4062 9579 4056 9576
      4053 9577 4053 9575 4050 9574
TIME...MOT...LOC 2216Z 257DEG 40KT 4052 9601 

$$

BOUSTEAD/MAYES
326 
WWUS53 KOAX 142229
SVSOAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
529 PM CDT SAT APR 14 2012

NEC127-131-142245-
/O.CON.KOAX.TO.W.0003.000000T0000Z-120414T2245Z/
OTOE NE-NEMAHA NE-
529 PM CDT SAT APR 14 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR 
EXTREME SOUTHEASTERN OTOE AND EXTREME NORTHEASTERN NEMAHA COUNTIES...

AT 526 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 
NEAR PERU...OR 24 MILES WEST OF TARKIO...MOVING EAST AT 45 MPH. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF 
EXTREME SOUTHEASTERN OTOE AND EXTREME NORTHEASTERN 
NEMAHA COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4059 9589 4062 9579 4058 9577 4055 9576
      4053 9577 4053 9575 4050 9574 4050 9584
TIME...MOT...LOC 2226Z 258DEG 38KT 4054 9583 

$$

BOUSTEAD/MAYES
044 
WWUS53 KOAX 142236
SVSOAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
536 PM CDT SAT APR 14 2012

NEC131-127-142255-
/O.EXP.KOAX.TO.W.0003.000000T0000Z-120414T2245Z/
OTOE NE-
536 PM CDT SAT APR 14 2012

...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN OTOE COUNTY WILL 
EXPIRE AT 545 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA. 
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. 

ADDITIONAL SEVERE THUNDERSTORM DEVELOPMENT REMAINS POSSIBLE...AND 
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM.

LAT...LON 4059 9589 4062 9579 4058 9577 4055 9576
      4053 9577 4053 9575 4050 9574 4050 9584
TIME...MOT...LOC 2236Z 259DEG 36KT 4054 9583 

$$

BOUSTEAD/MAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 9:47 AM CDTSpecial Weather StatementOAXGage, Jefferson, Saline58 min
Apr 14, 10:50 AM CDTSevere Thunderstorm WarningOAXGage, Jefferson, Saline25 min
Apr 14, 11:15 AM CDTSpecial Weather StatementOAXGage30 min
Apr 14, 11:49 AM CDTSevere Thunderstorm WarningOAXAntelope, Boone26 min
Apr 14, 12:08 PM CDTSevere Thunderstorm WarningOAXAntelope, Boone, Madison, Pierce37 min
Apr 14, 12:39 PM CDTSevere Thunderstorm WarningOAXAntelope, Boone, Madison, Pierce36 min
Apr 14, 1:08 PM CDTSevere Thunderstorm WarningOAXMadison, Pierce, Stanton, Wayne37 min
Apr 14, 1:43 PM CDTSevere Thunderstorm WarningOAXCuming, Stanton, Thurston, Wayne32 min
Apr 14, 1:45 PM CDTFlash Flood WarningOAXCass60 min
Apr 14, 1:53 PM CDTFlash Flood WarningOAXMadison, Pierce, Stanton, Wayne2 hr
Apr 14, 2:01 PM CDTFlash Flood WarningOAXCuming, Stanton, Thurston, Wayne119 min
Apr 14, 2:16 PM CDTSpecial Weather StatementOAXCuming, Thurston44 min
Apr 14, 2:20 PM CDTSpecial Weather StatementOAXJefferson25 min
Apr 14, 3:00 PM CDTSpecial Weather StatementOAXSaline30 min
Apr 14, 3:09 PM CDTSevere Thunderstorm WarningOAXJefferson, Saline51 min
Apr 14, 3:32 PM CDTSevere Thunderstorm WarningOAXJohnson, Pawnee28 min
Apr 14, 3:53 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson22 min
Apr 14, 4:00 PM CDTFlash Flood WarningOAXGage, Jefferson, Lancaster, Saline3 hr
Apr 14, 4:00 PM CDTSevere Thunderstorm WarningOAXNemaha30 min
Apr 14, 4:17 PM CDTAreal Flood AdvisoryOAXButler3 hr
Apr 14, 4:26 PM CDTSpecial Weather StatementOAXGage, Johnson, Otoe34 min
Apr 14, 4:30 PM CDTFlash Flood WarningOAXLancaster3 hr
Apr 14, 4:43 PM CDTAreal Flood AdvisoryOAXCass, Gage, Johnson, Lancaster, Otoe2 hr
Apr 14, 4:46 PM CDTAreal Flood AdvisoryOAXJohnson, Nemaha, Otoe2 hr
Apr 14, 4:48 PM CDTSevere Thunderstorm WarningOAXJohnson, Nemaha, Otoe27 min
Apr 14, 5:11 PM CDTSevere Thunderstorm WarningOAXNemaha, Otoe34 min
Apr 14, 5:24 PM CDTTornado WarningOAXOtoe24 min
Apr 14, 5:35 PM CDTSevere Thunderstorm WarningOAXCass25 min

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.