Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 9, NWS Cheyenne, WY

June 7, 2009Banner County, Kimball County, Nebraska; Laramie County, Wyoming

NWS Cheyenne, WY issued this tornado warning at Jun 7, 2009, 1:00 PM MDT for Banner County, Kimball County, Nebraska; Laramie County, Wyoming. It was in force for 45 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
Jun 7, 2009, 1:00 PM MDT (19:00 UTC)
Expired
Jun 7, 2009, 1:45 PM MDT
In force
45 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon

Counties Banner County, NE, Kimball County, NE, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 78 km from the middle of the area, began a volume at 19:02 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.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.0 hours before the alert went out and 184 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, Denver, CO at 12:00Z on 2009-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2009-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2464 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
23 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 071900
TORCYS
NEC007-105-WYC021-071945-
/O.NEW.KCYS.TO.W.0009.090607T1900Z-090607T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
100 PM MDT SUN JUN 7 2009

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN BANNER COUNTY IN THE PANHANDLE OF NEBRASKA...
  NORTHWESTERN KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
  EAST CENTRAL LARAMIE COUNTY IN SOUTHEAST WYOMING...

* UNTIL 145 PM MDT

* AT 1258 PM MDT...THE PUBLIC REPORTED A TORNADO NEAR ALBIN...OR 26
  MILES NORTHWEST OF KIMBALL. DOPPLER RADAR SHOWED THIS TORNADO
  MOVING EAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  ALBIN AROUND 105 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4153 10377 4132 10373 4132 10422 4148 10425
TIME...MOT...LOC 1859Z 267DEG 12KT 4138 10412

$$

RE
3 follow-up statements
000 
WWUS55 KCYS 071915
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
115 PM MDT SUN JUN 7 2009

WYC021-071924-
/O.CAN.KCYS.TO.W.0009.000000T0000Z-090607T1945Z/
LARAMIE WY-
115 PM MDT SUN JUN 7 2009

...THE TORNADO WARNING FOR EASTERN LARAMIE COUNTY IS CANCELLED...

RADAR INDICTEDE THE STORM HAD MOVED EAST OUT OF THE COUNTY.

LAT...LON 4134 10404 4150 10404 4153 10377 4132 10373
TIME...MOT...LOC 1914Z 267DEG 12KT 4138 10406

$$

NEC007-105-071945-
/O.CON.KCYS.TO.W.0009.000000T0000Z-090607T1945Z/
BANNER NE-KIMBALL NE-
115 PM MDT SUN JUN 7 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM MDT FOR
NORTHWESTERN KIMBALL AND SOUTHWESTERN BANNER COUNTIES...

AT 112 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS TORNADO WAS LOCATED OVER EXTREME 
SOUTHWESTERN BANNER COUNTY...OR 23 MILES NORTHWEST OF 
KIMBALL...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
  NORTHWESTERN KIMBALL AND SOUTHWESTERN BANNER COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4134 10404 4150 10404 4153 10377 4132 10373
TIME...MOT...LOC 1914Z 267DEG 12KT 4138 10406

$$

RE
000 
WWUS55 KCYS 071916
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
116 PM MDT SUN JUN 7 2009

WYC021-071924-
/O.CAN.KCYS.TO.W.0009.000000T0000Z-090607T1945Z/
LARAMIE WY-
116 PM MDT SUN JUN 7 2009

...THE TORNADO WARNING FOR EASTERN LARAMIE COUNTY IS CANCELLED...

RADAR INDICATED THE STORM HAD MOVED EAST OUT OF THE COUNTY.

LAT...LON 4134 10404 4150 10404 4153 10377 4132 10373
TIME...MOT...LOC 1914Z 267DEG 12KT 4138 10406

$$

NEC007-105-071945-
/O.CON.KCYS.TO.W.0009.000000T0000Z-090607T1945Z/
BANNER NE-KIMBALL NE-
116 PM MDT SUN JUN 7 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM MDT FOR
NORTHWESTERN KIMBALL AND SOUTHWESTERN BANNER COUNTIES...

AT 112 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS TORNADO WAS LOCATED OVER EXTREME 
SOUTHWESTERN BANNER COUNTY...OR 23 MILES NORTHWEST OF 
KIMBALL...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
  NORTHWESTERN KIMBALL AND SOUTHWESTERN BANNER COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4134 10404 4150 10404 4153 10377 4132 10373
TIME...MOT...LOC 1914Z 267DEG 12KT 4138 10406

$$

RE
000 
WWUS55 KCYS 071940
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
140 PM MDT SUN JUN 7 2009

NEC007-105-071950-
/O.EXP.KCYS.TO.W.0009.000000T0000Z-090607T1945Z/
BANNER NE-KIMBALL NE-
140 PM MDT SUN JUN 7 2009

...THE TORNADO WARNING FOR NORTHWESTERN KIMBALL AND SOUTHWESTERN
BANNER COUNTIES EXPIRES AT 145 PM MDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE.

LAT...LON 4134 10404 4150 10404 4153 10377 4132 10373
TIME...MOT...LOC 1940Z 267DEG 12KT 4138 10394

$$

RE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 11:18 PM MDTSevere Thunderstorm WarningCYSCheyenne, Kimball57 min
Jun 7, 12:15 AM MDTSevere Thunderstorm WarningCYSCheyenne41 min
Jun 7, 12:51 PM MDTTornado WarningCYSBanner24 min
Jun 7, 1:19 PM MDTSevere Thunderstorm WarningCYSKimball22 min
Jun 7, 1:24 PM MDTTornado WarningCYSBanner, Scotts Bluff26 min
Jun 7, 2:50 PM MDTSevere Thunderstorm WarningCYSBox Butte, Morrill33 min
Jun 7, 5:40 AM MDTSevere Thunderstorm WarningCYSLaramie42 min

Nearby

Tornado Warnings in Nebraska, 2009Tornado Warnings in Wyoming, 2009Every tornado warning in 2009Tornadoes in 2009

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.