Alert archive / Nebraska / Tornado Warnings in 2009

Tornado Warning 71, NWS North Platte, NE

September 2, 2009Garfield County, Loup County, Nebraska

NWS North Platte, NE issued this tornado warning at Sep 2, 2009, 6:48 PM CDT for Garfield County, Loup County, Nebraska. It was in force for 27 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
Sep 2, 2009, 6:48 PM CDT (23:48 UTC)
Expired
Sep 2, 2009, 7:15 PM CDT
In force
27 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

Counties Garfield County, NE, Loup County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.8 hours before the alert went out and 133 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 2009-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2009-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.193958Sfc1 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
1602 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
104 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 
WFUS53 KLBF 022348
TORLBF
NEC071-115-030015-
/O.NEW.KLBF.TO.W.0071.090902T2348Z-090903T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
648 PM CDT WED SEP 2 2009

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN GARFIELD COUNTY IN NORTH CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF BURWELL...
  SOUTHEASTERN LOUP COUNTY IN NORTH CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF TAYLOR...

* UNTIL 715 PM CDT

* AT 646 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR HORSESHOE
  BEND LAKE...OR 9 MILES NORTH OF TAYLOR...MOVING SOUTHEAST AT 20
  MPH.

* THE TORNADO WILL BE NEAR...
  7 MILES SOUTHWEST OF CALAMUS RESERVOIR STATE RECREATION AREA BY 705
  PM CDT...
  TAYLOR AND KENT DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA BY 715
  PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING PING 
PONG BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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 4174 9911 4174 9951 4189 9953 4199 9942
      4198 9925
TIME...MOT...LOC 2348Z 337DEG 17KT 4190 9942

$$

MASEK
2 follow-up statements
000 
WWUS53 KLBF 030002
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
702 PM CDT WED SEP 2 2009

NEC071-115-030015-
/O.CON.KLBF.TO.W.0071.000000T0000Z-090903T0015Z/
GARFIELD NE-LOUP NE-
702 PM CDT WED SEP 2 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN LOUP AND SOUTHWESTERN GARFIELD COUNTIES...

AT 701 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR HIGHWAY 183 MILE
MARKER 130...OR NEAR TAYLOR...MOVING SOUTHEAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  6 MILES NORTHEAST OF HIGHWAY 91 MILE MARKER 40 BY 710 PM CDT...
  TAYLOR AND KENT DIVERSION DAM STATE WILDLIFE MANAGEMENT AREA BY 715
  PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING PING 
PONG BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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 4186 9950 4194 9940 4195 9924 4174 9911
      4174 9951
TIME...MOT...LOC 0001Z 337DEG 17KT 4185 9939

$$

MASEK
000 
WWUS53 KLBF 030016
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
716 PM CDT WED SEP 2 2009

NEC071-115-030025-
/O.EXP.KLBF.TO.W.0071.000000T0000Z-090903T0015Z/
GARFIELD NE-LOUP NE-
716 PM CDT WED SEP 2 2009

...THE TORNADO WARNING FOR SOUTHEASTERN LOUP AND SOUTHWESTERN
GARFIELD COUNTIES HAS EXPIRED...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED...THUS THE 
WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4186 9950 4194 9940 4195 9924 4174 9911
      4174 9951
TIME...MOT...LOC 0002Z 337DEG 17KT 4185 9939

$$

MASEK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 4:56 PM CDTSevere Thunderstorm WarningLBFHolt49 min
Sep 2, 5:46 PM CDTTornado WarningLBFHolt44 min
Sep 2, 6:10 PM CDTTornado WarningLBFLoup, Rock50 min

Nearby

Tornado Warnings in Nebraska, 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.