Alert archive / Nebraska / Tornado Warnings in 2006

Tornado Warning 5, NWS Cheyenne, WY

May 28, 2006Box Butte County, Dawes County, Nebraska

NWS Cheyenne, WY issued this tornado warning at May 28, 2006, 7:18 PM MDT for Box Butte County, Dawes County, Nebraska. It was in force for 16 min. 6 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 28, 2006, 7:18 PM MDT (01:18 UTC)
Expired: May 28, 2006, 7:34 PM MDT
In force: 16 min
Issued by: NWS Cheyenne, WY
Area: Counties, with a storm outline in the text

Counties Box Butte County, NE, Dawes County, NE

The radar

The Rapid City radar (KUDX), 183 km from the middle of the area, began a volume at 01:22 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 28, 7:19 PM MDT	TSTM WND GST 60	Hemingford, NE
May 28, 7:19 PM MDT	HAIL 0.88	Hemingford, NE
May 28, 7:20 PM MDT	HAIL 0.88	1 Sw Chadron, NE
May 28, 7:22 PM MDT	TSTM WND GST 96	5 E Hemingford, NE	HIGHWAY OBSERVATION PLATFORM
May 28, 7:28 PM MDT	TSTM WND DMG	10 N Hemingford, NE	TREES DOWN
May 28, 7:39 PM MDT	HAIL 1	12 N Alliance, 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.

Issued	Product	Office	Lasted
May 28, 5:10 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 1.3 hours before the alert went out and 176 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: 20 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 2099 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 97 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.

000 
WFUS55 KCYS 290118
TORCYS
NEC013-045-290200-
/O.NEW.KCYS.TO.W.0005.060529T0118Z-060529T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
718 PM MDT SUN MAY 28 2006

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN BOX BUTTE COUNTY IN THE PANHANDLE OF NEBRASKA...
  EASTERN DAWES COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 800 PM MDT

* AT 713 PM MDT...THE PUBLIC REPORTED A TORNADO NEAR HEMINGFORD...OR
  ABOUT 21 MILES NORTHWEST OF ALLIANCE...MOVING NORTHEAST AT 50 MPH.

* THE TORNADO EXPECTED TO BE NEAR...
  SAND CANYON BY 735 PM MDT...

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.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT
MONDAY MORNING FOR THE PANHANDLE OF NEBRASKA.

LAT...LON 4231 10330 4220 10277 4278 10280 4287 10327

$$

1 follow-up statement

000 
WWUS55 KCYS 290134
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
732 PM MDT SUN MAY 28 2006

NEC013-045-290142-
/O.CAN.KCYS.TO.W.0005.000000T0000Z-060529T0200Z/
BOX BUTTE NE-DAWES NE-
732 PM MDT SUN MAY 28 2006

...THE TORNADO WARNING FOR EASTERN DAWES AND NORTHERN BOX BUTTE
COUNTIES IS CANCELLED...

SEVERE THUNDERSTORMS ARE CONTINUING ACROSS DAWES AND BOX BUTTE 
COUNTIES...BUT NO TORNADO IS ON THE GROUND AT THIS TIME. THESE 
STORMS ARE CONTINUING TO SHOW ROTATION...AND A SEVERE THUNDERSTORM 
WARNING IS IN EFFECT UNTIL 8 PM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT
MONDAY MORNING FOR THE PANHANDLE OF NEBRASKA.

LAT...LON 4231 10330 4220 10277 4278 10280 4287 10327

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 6:05 PM MDT	Severe Thunderstorm Warning	CYS	Sioux	55 min
May 28, 6:28 PM MDT	Tornado Warning	CYS	Scotts Bluff	33 min
May 28, 6:33 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Dawes	57 min
May 28, 6:54 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	41 min
May 28, 7:34 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Dawes	26 min

Nearby

Tornado Warnings in Nebraska, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.