Alert archive / Nebraska / Tornado Warnings in 2012

Tornado Warning 3, NWS Cheyenne, WY

May 5, 2012Kimball County, Nebraska

NWS Cheyenne, WY issued this tornado warning at May 5, 2012, 5:37 PM MDT for Kimball County, Nebraska. It was in force for 38 min. 5 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 5, 2012, 5:37 PM MDT (23:37 UTC)
Expired: May 5, 2012, 6:15 PM MDT
In force: 38 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon

County Kimball County, NE

The radar

The Cheyenne radar (KCYS), 81 km from the middle of the area, began a volume at 23:39 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

Time	Report	Where	Remark
May 5, 5:40 PM MDT	FUNNEL CLOUD	12 Sw Kimball, NE	NUMEROUS FUNNEL CLOUDS REPORTED WITH THIS STORM
May 5, 5:49 PM MDT	HAIL 2.75	Bushnell, NE	NUMEROUS REPORTS OF GOLFBALL TO BASEBALL SIZE HAIL IN THE TOWN OF BUSHNELL.
May 5, 6:00 PM MDT	FUNNEL CLOUD	3 W Kimball, NE	REPORTS OF STRONGLY ROTATING WALL CLOUD WITH MULTIPLE FUNNELS
May 5, 6:00 PM MDT	HAIL 1.75	3 W Kimball, NE	ALSO GOLFBALL SIZED HAIL REPORTED 7 MILES SOUTH OF KIMBALL
May 5, 6:10 PM MDT	HAIL 1.75	2 E Kimball, NE	QUARTER TO GOLFBALL SIZED HAIL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.6 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2826 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 33 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.

143 
WFUS55 KCYS 052337
TORCYS
NEC105-060015-
/O.NEW.KCYS.TO.W.0003.120505T2337Z-120506T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
537 PM MDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 615 PM MDT

* AT 535 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES SOUTHEAST OF PINE BLUFFS...OR 16 MILES   
  SOUTHWEST OF KIMBALL...AND MOVING SOUTHEAST AT 30 MPH. IN ADDITION 
  TO THE POTENTIAL TORNADO...THIS STORM IS ALSO CAPABLE OF PRODUCING 
  LARGE DESTRUCTIVE HAIL TO THE SIZE OF BASEBALLS.

* LOCATIONS IMPACTED INCLUDE...
  KIMBALL...OLIVER CAMPGROUND...OLIVER RESERVOIR AND KIMBALL AIRPORT.

THIS INCLUDES INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 1 AND
29.

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 4108 10406 4128 10405 4129 10351 4100 10349
      4100 10389
TIME...MOT...LOC 2336Z 291DEG 25KT 4113 10393

$$

HAMMER/LIEBL

2 follow-up statements

550 
WWUS55 KCYS 052354
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
554 PM MDT SAT MAY 5 2012

NEC105-060015-
/O.CON.KCYS.TO.W.0003.000000T0000Z-120506T0015Z/
KIMBALL NE-
554 PM MDT SAT MAY 5 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL KIMBALL COUNTY
UNTIL 615 PM MDT...

AT 548 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES SOUTH OF OLIVER RESERVOIR...OR 13 MILES 
SOUTHWEST OF KIMBALL...MOVING SOUTHEAST AT 30 MPH. IN ADDITION TO 
THE POSSIBLE TORNADO...THIS STORM IS ALSO CAPABLE OF PRODUCING LARGE 
DESTRUCTIVE HAIL TO THE SIZE OF TENNIS BALLS AND DAMAGING STRAIGHT 
LINE WINDS IN EXCESS OF 60 MPH. 

LOCATIONS IMPACTED INCLUDE...
  KIMBALL AND KIMBALL AIRPORT.

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 4110 10396 4128 10390 4129 10351 4100 10349
      4100 10389
TIME...MOT...LOC 2353Z 291DEG 25KT 4108 10379

$$

HAMMER/LIEBL

853 
WWUS55 KCYS 060015
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
615 PM MDT SAT MAY 5 2012

NEC105-060025-
/O.EXP.KCYS.TO.W.0003.000000T0000Z-120506T0015Z/
KIMBALL NE-
615 PM MDT SAT MAY 5 2012

...THE TORNADO WARNING FOR CENTRAL KIMBALL COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA. 

LAT...LON 4110 10396 4128 10390 4129 10351 4100 10349
      4100 10389
TIME...MOT...LOC 0015Z 291DEG 25KT 4102 10360

$$

LIEBL

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 5, 2:48 PM MDT	Special Weather Statement	CYS	Banner	42 min
May 5, 2:54 PM MDT	Severe Thunderstorm Warning	CYS	Banner	39 min
May 5, 3:49 PM MDT	Severe Thunderstorm Warning	CYS	Banner	41 min
May 5, 4:21 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	39 min
May 5, 4:27 PM MDT	Severe Thunderstorm Warning	CYS	Banner	33 min
May 5, 4:49 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	41 min
May 5, 5:02 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Cheyenne, Kimball	43 min
May 5, 5:13 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	47 min
May 5, 5:23 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	55 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.