Alert archive / Nebraska / Tornado Warnings in 2012

Tornado Warning 13, NWS Omaha, NE

May 27, 2012Antelope County, Pierce County, Nebraska

NWS Omaha, NE issued this tornado warning at May 27, 2012, 5:13 PM CDT for Antelope County, Pierce County, Nebraska. It was in force for 29 min. 1 report 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
May 27, 2012, 5:13 PM CDT (22:13 UTC)
Expired
May 27, 2012, 5:42 PM CDT
In force
29 min
Issued by
NWS Omaha, NE
Area
Storm-based polygon

Counties Antelope County, NE, Pierce County, NE

The radar

The Omaha radar (KOAX), 163 km from the middle of the area, began a volume at 22:13 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
May 27, 5:25 PM CDTHAIL 2.5Oakdale, NEMOSTLY GOLFBALL, SOME TENNIS BALL SIZE.

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
May 27, 3:42 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.2 hours before the alert went out and 163 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 2012-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1034 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, Omaha, NE at 12:00Z on 2012-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.19395878Sfc1 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
1034 J/kg
Mixed-layer CIN
-295 J/kg
Mixed-layer LCL
1208 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
245 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.

539 
WFUS53 KOAX 272213
TOROAX
NEC003-139-272300-
/O.NEW.KOAX.TO.W.0013.120527T2213Z-120527T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
513 PM CDT SUN MAY 27 2012

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL PIERCE COUNTY IN NORTHEAST NEBRASKA...
  ANTELOPE COUNTY IN NORTHEAST NEBRASKA...

* UNTIL 600 PM CDT

* AT 509 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR 
  ELGIN...OR 36 MILES WEST OF NORFOLK. DOPPLER RADAR SHOWED THIS 
  TORNADO MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NELIGH...PLAINVIEW...ELGIN...OAKDALE...BRUNSWICK AND FOSTER. 

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 347 AND 354.
 HIGHWAY 275 BETWEEN MILE MARKERS 39 AND 50.

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 4244 9794 4229 9764 4210 9781 4192 9806
      4200 9824
TIME...MOT...LOC 2209Z 213DEG 29KT 4200 9812 

$$

SMITH/ZAPOTOCNY
3 follow-up statements
463 
WWUS53 KOAX 272216
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
516 PM CDT SUN MAY 27 2012

NEC003-139-272300-
/O.CON.KOAX.TO.W.0013.000000T0000Z-120527T2300Z/
PIERCE NE-ANTELOPE NE-
516 PM CDT SUN MAY 27 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR WEST 
CENTRAL PIERCE AND ANTELOPE COUNTIES...

AT 513 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS 
TORNADIC STORM WAS LOCATED NEAR ELGIN...OR 31 MILES WEST OF 
NORFOLK...MOVING NORTHEAST AT 35 MPH. 

IN ADDITION...TENNIS BALL SIZED HAIL WAS REPORTED IN ELGIN AT 512PM.

LOCATIONS IMPACTED INCLUDE...
NELIGH...ELGIN...OAKDALE AND FOSTER. 

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 352 AND 354.
 HIGHWAY 275 BETWEEN MILE MARKERS 39 AND 50.

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 4204 9818 4237 9787 4229 9764 4210 9781
      4194 9803
TIME...MOT...LOC 2213Z 220DEG 30KT 4201 9803 

$$

SMITH/ZAPOTOCNY
589 
WWUS53 KOAX 272226
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
526 PM CDT SUN MAY 27 2012

NEC003-139-272300-
/O.CON.KOAX.TO.W.0013.000000T0000Z-120527T2300Z/
PIERCE NE-ANTELOPE NE-
526 PM CDT SUN MAY 27 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR 
SOUTHWESTERN PIERCE AND SOUTHEASTERN ANTELOPE COUNTIES...

AT 521 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 
NEAR OAKDALE...OR 24 MILES WEST OF NORFOLK...MOVING NORTHEAST AT 50 
MPH. 

LOCATIONS IMPACTED INCLUDE...
OAKDALE.

THIS INCLUDES HIGHWAY 275 BETWEEN MILE MARKERS 45 AND 50.

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 4232 9771 4227 9766 4225 9767 4210 9781
      4199 9796 4199 9797 4206 9805
TIME...MOT...LOC 2221Z 229DEG 43KT 4204 9790 

$$

SMITH/CZ
652 
WWUS53 KOAX 272242
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
542 PM CDT SUN MAY 27 2012

NEC003-139-272310-
/O.CAN.KOAX.TO.W.0013.000000T0000Z-120527T2300Z/
PIERCE NE-ANTELOPE NE-
542 PM CDT SUN MAY 27 2012

...THE TORNADO WARNING FOR SOUTHWESTERN PIERCE AND SOUTHEASTERN 
ANTELOPE COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING CONTINUES TO BE SEVERE.  A 
DIFFERENT TORNADO WARNING CONTINUES FOR WESTERN PIERCE COUNTY.

LAT...LON 4232 9771 4227 9766 4225 9767 4210 9781
      4199 9796 4199 9797 4206 9805
TIME...MOT...LOC 2241Z 213DEG 29KT 4204 9790 

$$

SMITH/ZAPOTOCNY

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 3:42 AM CDTFlash Flood WatchOAXBurt, Cuming, Thurston21 hr
May 27, 4:15 PM CDTSpecial Weather StatementOAXStanton30 min
May 27, 4:39 PM CDTSevere Thunderstorm WarningOAXCuming, Stanton, Thurston, Wayne47 min
May 27, 4:41 PM CDTSevere Thunderstorm WarningOAXAntelope, Boone34 min
May 27, 5:16 PM CDTSevere Thunderstorm WarningOAXCedar44 min
May 27, 5:24 PM CDTSevere Thunderstorm WarningOAXCedar, Knox, Madison, Pierce, Wayne51 min
May 27, 5:30 PM CDTTornado WarningOAXAntelope, Pierce30 min
May 27, 5:36 PM CDTTornado WarningOAXBoone39 min
May 27, 5:43 PM CDTSevere Thunderstorm WarningOAXSaline, Seward47 min
May 27, 5:47 PM CDTFlash Flood WarningOAXAntelope, Boone, Pierce3 hr
May 27, 5:57 PM CDTSevere Thunderstorm WarningOAXJefferson, Saline, Seward48 min
May 27, 6:00 PM CDTTornado WarningOAXBoone, Madison, Platte30 min
May 27, 6:04 PM CDTSevere Thunderstorm WarningOAXAntelope, Boone, Madison, Pierce26 min
May 27, 6:06 PM CDTSevere Thunderstorm WarningOAXCedar, Pierce, Wayne39 min
May 27, 6:08 PM CDTAreal Flood AdvisoryOAXAntelope, Pierce3 hr
May 27, 6:19 PM CDTSevere Thunderstorm WarningOAXButler, Seward26 min
May 27, 6:19 PM CDTSevere Thunderstorm WarningOAXBoone, Platte26 min
May 27, 6:28 PM CDTTornado WarningOAXMadison, Pierce, Stanton32 min
May 27, 6:32 PM CDTSevere Thunderstorm WarningOAXMadison, Pierce28 min
May 27, 6:42 PM CDTSevere Thunderstorm WarningOAXAntelope, Boone, Madison, Platte33 min
May 27, 6:46 PM CDTSevere Thunderstorm WarningOAXButler, Colfax, Dodge, Saunders33 min
May 27, 6:48 PM CDTSevere Thunderstorm WarningOAXButler, Lancaster, Saline, Saunders, Seward57 min
May 27, 6:53 PM CDTSevere Thunderstorm WarningOAXCedar, Pierce, Stanton, Thurston, Wayne37 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.