Alert archive / Nebraska / Tornado Warnings in 2012

Tornado Warning 4, NWS Goodland, KS

April 12, 2012Hitchcock County, Nebraska

NWS Goodland, KS issued this tornado warning at Apr 12, 2012, 7:51 PM CDT for Hitchcock County, Nebraska. It was in force for 24 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 12, 2012, 7:51 PM CDT (00:51 UTC)
Expired: Apr 12, 2012, 8:15 PM CDT
In force: 24 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon

County Hitchcock County, NE

The radar

The Goodland radar (KGLD), 123 km from the middle of the area, began a volume at 00:52 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.

Issued	Product	Office	Lasted
Apr 12, 1:47 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.9 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 188 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 487 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 458 m²/s²
0-3 km storm-relative helicity: 490 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

251 
WFUS53 KGLD 130051
TORGLD
NEC087-130115-
/O.NEW.KGLD.TO.W.0004.120413T0051Z-120413T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
751 PM CDT THU APR 12 2012

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HITCHCOCK COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 815 PM CDT

* AT 745 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A BRIEF TORNADO
  3 MILES NORTHWEST OF TRENTON. DOPPLER RADAR SHOWED THIS TORNADO
  MOVING NORTHEAST AT 25 MPH.

  IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
  DESTRUCTIVE HAIL UP TO HEN EGG SIZE.   

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN HITCHCOCK COUNTY.

THIS INCLUDES HIGHWAY 34 BETWEEN MILE MARKERS 61 AND 74.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO HAS BEEN CONFIRMED BY TRAINED WEATHER SPOTTERS.
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 4032 10076 4015 10095 4026 10114 4035 10105
      4035 10076
TIME...MOT...LOC 0051Z 217DEG 21KT 4028 10097
HAIL 2.00IN
$$

LOCKHART

1 follow-up statement

022 
WWUS53 KGLD 130111
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
711 PM MDT THU APR 12 2012

NEC087-130121-
/O.EXP.KGLD.TO.W.0004.000000T0000Z-120413T0115Z/
HITCHCOCK NE-
811 PM CDT THU APR 12 2012

...THE TORNADO WARNING FOR NORTHEASTERN HITCHCOCK COUNTY WILL EXPIRE
AT 715 PM MDT/815 PM CDT/...

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

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 9PM CDT.

LAT...LON 4032 10076 4015 10095 4026 10114 4035 10105
      4035 10076
TIME...MOT...LOC 0111Z 217DEG 21KT 4037 10088
$$

LOCKHART

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 12, 7:15 PM CDT	Severe Thunderstorm Warning	GLD	Hitchcock	30 min
Apr 12, 7:32 PM CDT	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	40 min
Apr 12, 8:00 PM CDT	Severe Thunderstorm Warning	GLD	Dundy, Hitchcock	46 min
Apr 12, 8:51 PM CDT	Special Weather Statement	GLD	Hitchcock	54 min
Apr 12, 9:10 PM CDT	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	50 min
Apr 12, 9:40 PM CDT	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	50 min

Nearby

Tornado Warnings in Nebraska, 2012 Every tornado warning in 2012 Tornadoes 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.