Alert archive / Nebraska / Tornado Warnings in 2007

Tornado Warning 14, NWS North Platte, NE

March 28, 2007Keith County, Nebraska

NWS North Platte, NE issued this tornado warning at Mar 28, 2007, 8:26 PM MDT for Keith County, Nebraska. It was in force for 18 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
Mar 28, 2007, 8:26 PM MDT (02:26 UTC)
Expired
Mar 28, 2007, 8:44 PM MDT
In force
18 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Keith County, NE

The radar

The North Platte radar (KLNX), 127 km from the middle of the area, began a volume at 02:26 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
Mar 28, 8:35 PM MDTTSTM WND GST 908 Ne Ogallala, NE90 MPH WIND REPORTED AT NE CORNER OF LAKE MCCONAUGHY.

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 00:00Z, 2.4 hours before the alert went out and 97 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 2007-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1774 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 2007-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 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
1774 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
2.5
Supercell composite
10.8

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 290226
TORLBF
NEC101-290315-
/O.NEW.KLBF.TO.W.0014.070329T0226Z-070329T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
826 PM MDT WED MAR 28 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL KEITH COUNTY IN SOUTHWEST NEBRASKA...
  THIS INCLUDES THE CITY OF OGALLALA...

* UNTIL 915 PM MDT

* AT 821 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR
  OGALLALA...MOVING NORTH AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  6 MILES EAST OF LAKE VIEW CAMPGROUND BY 830 PM MDT...
  LEMOYNE AND 8 MILES WEST OF KEYSTONE BY 840 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.

LAT...LON 4112 10189 4112 10164 4138 10152 4138 10183

$$

13
1 follow-up statement
000 
WWUS53 KLBF 290244
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
942 PM CDT WED MAR 28 2007

NEC101-290252-
/O.CAN.KLBF.TO.W.0014.000000T0000Z-070329T0315Z/
KEITH NE-
842 PM MDT WED MAR 28 2007

...THE TORNADO WARNING FOR CENTRAL KEITH COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM MDT THURSDAY MORNING
FOR WESTERN NEBRASKA.

THE STORM WHICH HAD PROMPTED WARNING HAS WEAKENED AND WAS BEING 
INTERRUPTED BY ADDITIONAL STORMS DEVELOPING ACROSS EASTERN KEITH 
COUNTY. SHOWERS AND THUNDERSTORMS WILL STILL BE POSSIBLE ACROSS 
KEITH COUNTY...LARGE HAIL...DAMAINGING WIND GUSTS AND ISOLATED 
TORNADOES WILL STILL BE POSSIBLE THROUGH THE LATE EVENING HOURS.  

LAT...LON 4112 10189 4112 10164 4138 10152 4138 10183

$$

13

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 6:00 PM MDTSevere Thunderstorm WarningLBFChase30 min
Mar 28, 6:10 PM MDTTornado WarningLBFCherry35 min
Mar 28, 6:25 PM MDTSevere Thunderstorm WarningLBFChase50 min
Mar 28, 6:26 PM MDTSevere Thunderstorm WarningLBFArthur, Keith49 min
Mar 28, 6:41 PM MDTTornado WarningLBFArthur, Keith49 min
Mar 28, 6:47 PM MDTTornado WarningLBFCherry28 min
Mar 28, 6:53 PM MDTTornado WarningLBFChase, Perkins52 min
Mar 28, 7:07 PM MDTTornado WarningLBFArthur, Garden38 min
Mar 28, 7:26 PM MDTTornado WarningLBFGrant34 min
Mar 28, 7:43 PM MDTTornado WarningLBFKeith, Perkins47 min
Mar 28, 8:20 PM MDTSevere Thunderstorm WarningLBFCherry, Sheridan40 min
Mar 28, 8:23 PM MDTSevere Thunderstorm WarningLBFKeith, Lincoln, Perkins52 min
Mar 28, 8:52 PM MDTSevere Thunderstorm WarningLBFArthur, Keith, McPherson38 min
Mar 28, 8:56 PM MDTSevere Thunderstorm WarningLBFHayes49 min
Mar 28, 10:18 PM MDTFlash Flood WarningLBFChase, Hayes, Keith, Perkins6 hr

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.