Alert archive / Nebraska / Tornado Warnings in 2007

Tornado Warning 62, NWS North Platte, NE

June 21, 2007Holt County, Rock County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 21, 2007, 8:26 PM CDT for Holt County, Rock County, Nebraska. It was in force for 34 min. 1 report 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
Jun 21, 2007, 8:26 PM CDT (01:26 UTC)
Expired
Jun 21, 2007, 9:00 PM CDT
In force
34 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

Counties Holt County, NE, Rock County, NE

The radar

The North Platte radar (KLNX), 122 km from the middle of the area, began a volume at 01:28 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
Jun 21, 8:30 PM CDTHAIL 1.7518 Nne Rose, NEGOFLBALL HAIL FOR 20 MINUTES ON NORTHERN SHORE OF PONY LAKE.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 21, 4:37 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.4 hours before the alert went out and 183 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 00:00Z on 2007-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3305 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 00:00Z on 2007-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
3305 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1841 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
332 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 220126
TORLBF
NEC089-149-220200-
/O.NEW.KLBF.TO.W.0062.070622T0126Z-070622T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
826 PM CDT THU JUN 21 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL HOLT COUNTY IN NORTH CENTRAL NEBRASKA...
  EAST CENTRAL ROCK COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 900 PM CDT

* AT 823 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD
  NEAR PONY LAKE...OR ABOUT 14 MILES SOUTHEAST OF BASSETT...MOVING
  SOUTHEAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  PONY LAKE BY 840 PM CDT...
  BROWN LAKE BY 900 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING
FOR WESTERN NEBRASKA.

LAT...LON 4253 9940 4224 9943 4224 9897 4254 9896

$$

ADO/JRS
1 follow-up statement
000 
WWUS53 KLBF 220146
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
845 PM CDT THU JUN 21 2007

NEC089-149-220200-
/O.CON.KLBF.TO.W.0062.000000T0000Z-070622T0200Z/
ROCK NE-HOLT NE-
845 PM CDT THU JUN 21 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR WEST
CENTRAL HOLT AND EAST CENTRAL ROCK COUNTIES...

AT 843 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. 
THIS TORNADO WAS LOCATED NEAR PONY LAKE...OR ABOUT 16 MILES SOUTHEAST
OF BASSETT...MOVING SOUTHEAST AT 10 MPH.

THE TORNADO WILL BE NEAR...
  PONY LAKE BY 850 PM CDT...
  6 MILES NORTHWEST OF BROWN LAKE BY 900 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING
FOR WESTERN NEBRASKA.

LAT...LON 4253 9940 4224 9943 4224 9897 4254 9896

$$

ADO/JRS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:22 PM CDTSevere Thunderstorm WarningLBFCuster53 min
Jun 21, 7:28 PM CDTTornado WarningLBFRock32 min
Jun 21, 7:46 PM CDTSevere Thunderstorm WarningLBFCherry59 min
Jun 21, 7:57 PM CDTSevere Thunderstorm WarningLBFHolt, Rock63 min
Jun 21, 8:04 PM CDTTornado WarningLBFCherry56 min
Jun 21, 8:07 PM CDTTornado WarningLBFHolt, Rock23 min
Jun 21, 8:15 PM CDTSevere Thunderstorm WarningLBFCherry30 min
Jun 21, 8:22 PM CDTSevere Thunderstorm WarningLBFSheridan38 min
Jun 21, 8:24 PM CDTTornado WarningLBFCherry51 min
Jun 21, 8:28 PM CDTSevere Thunderstorm WarningLBFSheridan32 min
Jun 21, 8:51 PM CDTSevere Thunderstorm WarningLBFSheridan24 min
Jun 21, 8:52 PM CDTSevere Thunderstorm WarningLBFGarden, Grant38 min
Jun 21, 8:59 PM CDTSevere Thunderstorm WarningLBFHolt, Rock61 min
Jun 21, 9:00 PM CDTTornado WarningLBFCherry43 min
Jun 21, 9:02 PM CDTSevere Thunderstorm WarningLBFSheridan28 min
Jun 21, 9:15 PM CDTSevere Thunderstorm WarningLBFKeya Paha, Rock42 min
Jun 21, 9:20 PM CDTSevere Thunderstorm WarningLBFCherry25 min
Jun 21, 9:30 PM CDTSevere Thunderstorm WarningLBFGrant, Hooker45 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.