Alert archive / Nebraska / Tornado Warnings in 2012

Tornado Warning 23, NWS Hastings, NE

May 4, 2012Greeley County, Valley County, Nebraska

NWS Hastings, NE issued this tornado warning at May 4, 2012, 8:02 PM CDT for Greeley County, Valley County, Nebraska. It was in force for 28 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
May 4, 2012, 8:02 PM CDT (01:02 UTC)
Expired
May 4, 2012, 8:30 PM CDT
In force
28 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon

Counties Greeley County, NE, Valley County, NE

The radar

The Grand Island radar (KUEX), 129 km from the middle of the area, began a volume at 01:02 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 4, 8:14 PM CDTTSTM WND GST 504 N Scotia, NE
May 4, 8:14 PM CDTHAIL 1.753 N North Loup, NE
May 4, 8:24 PM CDTHAIL 1.751 N North Loup, NE
May 4, 8:24 PM CDTHAIL 1.752 N Scotia, NE

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 4, 5:52 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.0 hours before the alert went out and 168 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, N. Platte/Lee Bi, NE at 00:00Z on 2012-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 171 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, N. Platte/Lee Bi, NE at 00:00Z on 2012-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
171 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
3007 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

046 
WFUS53 KGID 050102
TORGID
NEC077-175-050130-
/O.NEW.KGID.TO.W.0023.120505T0102Z-120505T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
802 PM CDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN GREELEY COUNTY IN CENTRAL NEBRASKA...
  SOUTHEASTERN VALLEY COUNTY IN CENTRAL NEBRASKA...

* UNTIL 830 PM CDT

* AT 757 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR NORTH LOUP...OR 11 MILES SOUTHEAST OF ORD...
  AND MOVING SOUTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SCOTIA.

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 4140 9845 4139 9882 4156 9883 4161 9866
TIME...MOT...LOC 0102Z 324DEG 12KT 4152 9871
HAIL 1.75IN

$$
3 follow-up statements
900 
WWUS53 KGID 050111
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
811 PM CDT FRI MAY 4 2012

NEC077-175-050130-
/O.CON.KGID.TO.W.0023.000000T0000Z-120505T0130Z/
GREELEY NE-VALLEY NE-
811 PM CDT FRI MAY 4 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN VALLEY AND
SOUTHWESTERN GREELEY COUNTIES UNTIL 830 PM CDT...

AT 807 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR SCOTIA...OR 15 MILES SOUTHEAST OF ORD...MOVING
SOUTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHWESTERN GREELEY COUNTY.

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 4140 9845 4139 9882 4156 9883 4161 9866
TIME...MOT...LOC 0112Z 324DEG 12KT 4148 9867
HAIL 1.75IN

$$
242 
WWUS53 KGID 050119
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
819 PM CDT FRI MAY 4 2012

NEC077-175-050130-
/O.CON.KGID.TO.W.0023.000000T0000Z-120505T0130Z/
GREELEY NE-VALLEY NE-
819 PM CDT FRI MAY 4 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN VALLEY AND
SOUTHWESTERN GREELEY COUNTIES UNTIL 830 PM CDT...

AT 816 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR SCOTIA...OR 18 MILES SOUTHEAST OF ORD...MOVING
SOUTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHERN GREELEY COUNTY.

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 4140 9845 4139 9875 4139 9882 4140 9882
      4150 9883 4157 9862
TIME...MOT...LOC 0120Z 324DEG 12KT 4144 9864
HAIL 1.75IN

$$
473 
WWUS53 KGID 050127
SVSGID

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
827 PM CDT FRI MAY 4 2012

NEC077-175-050136-
/O.EXP.KGID.TO.W.0023.000000T0000Z-120505T0130Z/
GREELEY NE-VALLEY NE-
827 PM CDT FRI MAY 4 2012

...THE TORNADO WARNING FOR SOUTHEASTERN VALLEY AND SOUTHWESTERN
GREELEY COUNTIES WILL EXPIRE AT 830 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.

REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
SOUTHERN GREELEY...HOWARD...NORTHEASTERN SHERMAN...AND SOUTHEASTERN 
VALLEY COUNTIES UNTIL 900 PM CDT.

LAT...LON 4140 9845 4139 9875 4139 9882 4140 9882
      4150 9883 4157 9862
TIME...MOT...LOC 0126Z 324DEG 12KT 4142 9862

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 7:09 PM CDTSevere Thunderstorm WarningGIDGreeley, Valley51 min
May 4, 7:24 PM CDTTornado WarningGIDGreeley, Valley36 min
May 4, 7:56 PM CDTSevere Thunderstorm WarningGIDGreeley, Valley49 min
May 4, 8:22 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Sherman, Valley38 min
May 4, 8:47 PM CDTSpecial Weather StatementGIDSherman43 min
May 4, 8:56 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Merrick34 min
May 4, 8:59 PM CDTSevere Thunderstorm WarningGIDSherman, Valley46 min
May 4, 9:28 PM CDTSevere Thunderstorm WarningGIDGreeley, Hall, Howard, Sherman32 min
May 4, 9:32 PM CDTSevere Thunderstorm WarningGIDSherman28 min
May 4, 9:45 PM CDTSevere Thunderstorm WarningGIDGreeley, Valley45 min
May 4, 9:57 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Sherman, Valley48 min
May 4, 10:00 PM CDTTornado WarningGIDBuffalo, Sherman30 min
May 4, 10:29 PM CDTSevere Thunderstorm WarningGIDBuffalo, Sherman46 min
May 4, 10:42 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Sherman, Valley33 min
May 4, 11:09 PM CDTSevere Thunderstorm WarningGIDHoward, Sherman36 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.