Alert archive / Nebraska / Tornado Warnings in 2007

Tornado Warning 71, NWS North Platte, NE

July 13, 2007Lincoln County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 13, 2007, 6:52 PM CDT for Lincoln County, Nebraska. It was in force for 38 min. 4 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
Jul 13, 2007, 6:52 PM CDT (23:52 UTC)
Expired
Jul 13, 2007, 7:30 PM CDT
In force
38 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 84 km from the middle of the area, began a volume at 23:54 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

TimeReportWhereRemark
Jul 13, 7:18 PM CDTHAIL 1.755 N Hershey, NE
Jul 13, 7:20 PM CDTHAIL 1.75Hershey, NE
Jul 13, 7:25 PM CDTHAIL 2.751 Ne Sutherland, NE
Jul 13, 7:29 PM CDTHAIL 1.75Sutherland, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.9 hours before the alert went out and 37 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 2007-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2007-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
-272 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
77 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 132352
TORLBF
NEC111-140030-
/O.NEW.KLBF.TO.W.0071.070713T2352Z-070714T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
652 PM CDT FRI JUL 13 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 730 PM CDT

* AT 643 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 21 MILES NORTH
  OF HERSHEY...OR ABOUT 8 MILES SOUTHWEST OF TRYON...MOVING SOUTH AT
  20 MPH.

* THE TORNADO WILL BE NEAR...
  HERSHEY...SUTHERLAND AND 7 MILES NORTHEAST OF SUTHERLAND RESERVOIR
  STATE RECREATION AREA BY 730 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
BASEBALL 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 4139 10088 4139 10117 4111 10122 4110 10084

$$

CDC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 4:51 PM CDTSevere Thunderstorm WarningLBFCherry39 min
Jul 13, 4:52 PM CDTSevere Thunderstorm WarningLBFHooker, McPherson, Thomas23 min
Jul 13, 5:09 PM CDTSevere Thunderstorm WarningLBFHooker36 min
Jul 13, 5:13 PM CDTSevere Thunderstorm WarningLBFHooker, McPherson62 min
Jul 13, 5:18 PM CDTSevere Thunderstorm WarningLBFLincoln, McPherson57 min
Jul 13, 5:29 PM CDTSevere Thunderstorm WarningLBFThomas33 min
Jul 13, 5:29 PM CDTTornado WarningLBFHooker31 min
Jul 13, 5:31 PM CDTSevere Thunderstorm WarningLBFCherry58 min
Jul 13, 5:46 PM CDTTornado WarningLBFLincoln29 min
Jul 13, 5:55 PM CDTTornado WarningLBFHooker, McPherson35 min
Jul 13, 6:11 PM CDTTornado WarningLBFLincoln33 min
Jul 13, 6:23 PM CDTTornado WarningLBFMcPherson37 min
Jul 13, 6:34 PM CDTSevere Thunderstorm WarningLBFThomas41 min
Jul 13, 6:40 PM CDTTornado WarningLBFLincoln35 min

Nearby

Tornado Warnings in Nebraska, 2007Every tornado warning in 2007Tornadoes in 2007

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.