Alert archive / Nebraska / Tornado Warnings in 2001

Tornado Warning 7, NWS Cheyenne, WY

July 4, 2001Scotts Bluff County, Sioux County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jul 4, 2001, 6:29 PM MDT for Scotts Bluff County, Sioux County, Nebraska. It was in force for 31 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 4, 2001, 6:29 PM MDT (00:29 UTC)
Expired: Jul 4, 2001, 7:00 PM MDT
In force: 31 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

Counties Scotts Bluff County, NE, Sioux County, NE

What was reported inside it

Time	Report	Where	Remark
Jul 4, 6:41 PM MDT	Hail 3	Scottsbluff, NE	Large hail fell over parts of Scottsbluff, NE, damaging many cars and buildings as well as causing some minor injuries from broken glass.
Jul 4, 6:45 PM MDT	Thunderstorm Wind 51 M	Scottsbluff Arpt, NE
Jul 4, 6:52 PM MDT	Hail 1.75	Gering, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 4, 2:15 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 0.5 hours before the alert went out and 222 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: 1198 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 1803 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 19.2

Open this sounding in Storm Lab

The text

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

277 
WFUS55 KCYS 050029
TORCYS
NEC157-165-050100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
629 PM MDT WED JUL 4 2001

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA
  THIS INCLUDES THE CITY OF SCOTTSBLUFF
  EXTREME SOUTHEASTERN SIOUX COUNTY IN THE PANHANDLE OF NEBRASKA

* UNTIL 700 PM MDT

* AT 627 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A TORNADO 7 MILES NORTHEAST OF SCOTTSBLUFF...MOVING SOUTH AT 10
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE MINATARE

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

$$

BANN
LAT...LON 4205 10348 4201 10371 4171 10363 4180 10338

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 6:02 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff, Sioux	28 min
Jul 4, 6:20 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	40 min
Jul 4, 6:58 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Scotts Bluff	32 min
Jul 4, 7:29 PM MDT	Severe Thunderstorm Warning	CYS	Banner	46 min
Jul 4, 8:48 PM MDT	Severe Thunderstorm Warning	CYS	Sioux	42 min
Jul 4, 9:52 PM MDT	Severe Thunderstorm Warning	CYS	Dawes	38 min

Nearby

Tornado Warnings in Nebraska, 2001 Every tornado warning in 2001 Tornadoes in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.