Alert archive / Nebraska / Tornado Warnings in 2008

Tornado Warning 72, NWS North Platte, NE

July 14, 2008Keith County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 14, 2008, 3:47 PM MDT for Keith County, Nebraska. It was in force for 43 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
Jul 14, 2008, 3:47 PM MDT (21:47 UTC)
Expired
Jul 14, 2008, 4:30 PM MDT
In force
43 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

County Keith County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.8 hours before the alert went out and 91 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 2008-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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 2008-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 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
38 J/kg
Mixed-layer CIN
-615 J/kg
Mixed-layer LCL
1876 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
175 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 142147
TORLBF
NEC101-142230-
/O.NEW.KLBF.TO.W.0072.080714T2147Z-080714T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
347 PM MDT MON JUL 14 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL KEITH COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 430 PM MDT

* AT 343 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 7   
MILES SOUTH OF BRULE...OR 11 MILES SOUTHWEST OF OGALLALA...MOVING   
EAST AT 23 MPH.

* THE TORNADO WILL BE NEAR...
  6 MILES SOUTH OF ROSCOE BY 420 PM MDT...

DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK
TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORMS PATH AND
TO SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF
YOUR VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT.

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 4116 10154 4101 10144 4100 10194 4108 10195
TIME...MOT...LOC 2147Z 259DEG 20KT 4101 10181

$$

13
2 follow-up statements
000 
WWUS53 KLBF 142156
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
456 PM CDT MON JUL 14 2008

NEC101-142230-
/O.CON.KLBF.TO.W.0072.000000T0000Z-080714T2230Z/
KEITH NE-
356 PM MDT MON JUL 14 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM MDT FOR SOUTH
CENTRAL KEITH COUNTY...

AT 352 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR HIGHWAY 61 MILE MARKER 80...OR 8 MILES SOUTH
OF OGALLALA...MOVING EAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  ROSCOE BY 420 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 1000 PM MDT
MONDAY EVENING FOR SOUTHWESTERN NEBRASKA.

LAT...LON 4116 10154 4101 10144 4100 10194 4108 10195
TIME...MOT...LOC 2156Z 252DEG 21KT 4103 10175

$$

13
000 
WWUS53 KLBF 142224
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
523 PM CDT MON JUL 14 2008

NEC101-142233-
/O.EXP.KLBF.TO.W.0072.000000T0000Z-080714T2230Z/
KEITH NE-
423 PM MDT MON JUL 14 2008

...THE TORNADO WARNING FOR SOUTH CENTRAL KEITH COUNTY WILL EXPIRE AT 
430 PM MDT...

THE STORM WHICH HAD PROMPTED THE WARNING HAS WEAKENED SIGNIFICANTLY 
AND DOES NOT POSE A SEVERE WEATHER THREAT AT THIS TIME. ADDITIONAL 
THUNDERSTORMS...A FEW WITH LARGE HAIL AND DAMAGING WINDS...WILL BE 
POSSIBLE THROUGH THE EVENING. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
MONDAY EVENING FOR SOUTHWESTERN NEBRASKA.

LAT...LON 4116 10154 4101 10144 4100 10194 4108 10195
TIME...MOT...LOC 2223Z 252DEG 21KT 4106 10154

$$

13

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 3:38 PM MDTTornado WarningLBFPerkins37 min
Jul 14, 4:00 PM MDTSevere Thunderstorm WarningLBFKeith45 min
Jul 14, 4:16 PM MDTSevere Thunderstorm WarningLBFKeith, Lincoln, Perkins44 min
Jul 14, 5:01 PM MDTSevere Thunderstorm WarningLBFLincoln44 min
Jul 14, 5:20 PM MDTSevere Thunderstorm WarningLBFLincoln40 min
Jul 14, 5:39 PM MDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan, McPherson51 min
Jul 14, 5:59 PM MDTSevere Thunderstorm WarningLBFFrontier, Lincoln31 min

Nearby

Tornado Warnings in Nebraska, 2008Every tornado warning in 2008Tornadoes in 2008

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.