Alert archive / Nebraska / Tornado Warnings in 2006

Tornado Warning 19, NWS North Platte, NE

August 11, 2006Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Aug 11, 2006, 5:41 PM MDT for Cherry County, Nebraska. It was in force for 34 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
Aug 11, 2006, 5:41 PM MDT (23:41 UTC)
Expired
Aug 11, 2006, 6:15 PM MDT
In force
34 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Cherry County, NE

The radar

The North Platte radar (KLNX), 96 km from the middle of the area, began a volume at 23:44 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 watch it was issued in

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

IssuedProductOfficeLasted
Aug 11, 1:46 PM MDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.7 hours before the alert went out and 187 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 12:00Z on 2006-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 729 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 12:00Z on 2006-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 square meters per square second.1939Sfc1 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
729 J/kg
Mixed-layer CIN
-340 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 112341
TORLBF
NEC031-120015-
/O.NEW.KLBF.TO.W.0019.060811T2341Z-060812T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
641 PM CDT FRI AUG 11 2006

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 715 PM CDT(615 PM MDT)

* AT 539 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ANDERSON
  BRIDGE STATE WILDLIFE MANAGEMENT AREA...OR ABOUT 20 MILES SOUTHWEST
  OF VALENTINE...MOVING EAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  HIGHWAY 97 CROSSING THE NIOBRARA RIVER BY 710 PM CDT...
  SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT AREA BY 715 PM CDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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 4284 10102 4270 10104 4266 10058 4295 10055

$$

SPRINGER
1 follow-up statement
000 
WWUS53 KLBF 120002
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
702 PM CDT FRI AUG 11 2006

NEC031-120015-
/O.CON.KLBF.TO.W.0019.000000T0000Z-060812T0015Z/
CHERRY NE-
702 PM CDT FRI AUG 11 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT(615 PM MDT)
FOR NORTH CENTRAL CHERRY COUNTY...

AT 659 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES WEST OF
SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT AREA...OR ABOUT 14 MILES
SOUTHWEST OF VALENTINE...MOVING EAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT AREA AND 7 MILES SOUTH OF
  HIGHWAY 97 CROSSING THE NIOBRARA RIVER BY 715 PM CDT...

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 4284 10102 4270 10104 4266 10058 4295 10055

$$

SPRINGER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:40 PM MDTSevere Thunderstorm WarningLBFCherry65 min
Aug 10, 9:14 PM MDTSevere Thunderstorm WarningLBFKeya Paha61 min
Aug 10, 9:46 PM MDTSevere Thunderstorm WarningLBFBrown, Keya Paha, Rock59 min
Aug 10, 9:49 PM MDTSevere Thunderstorm WarningLBFCherry40 min
Aug 10, 10:08 PM MDTSevere Thunderstorm WarningLBFBoyd, Holt, Keya Paha67 min
Aug 10, 11:13 PM MDTSevere Thunderstorm WarningLBFBoyd, Holt47 min
Aug 11, 3:41 PM MDTSevere Thunderstorm WarningLBFCherry64 min
Aug 11, 4:29 PM MDTSevere Thunderstorm WarningLBFCherry61 min
Aug 11, 5:13 PM MDTSevere Thunderstorm WarningLBFCherry62 min
Aug 11, 5:55 PM MDTSevere Thunderstorm WarningLBFKeya Paha65 min

Nearby

Tornado Warnings in Nebraska, 2006Every tornado warning in 2006Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.