Alert archive / Nebraska / Tornado Warnings in 2007

Tornado Warning 56, NWS North Platte, NE

June 6, 2007Custer County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 6, 2007, 9:36 PM CDT for Custer County, Nebraska. It was in force for 39 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
Jun 6, 2007, 9:36 PM CDT (02:36 UTC)
Expired
Jun 6, 2007, 10:15 PM CDT
In force
39 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Custer County, NE

The radar

The North Platte radar (KLNX), 90 km from the middle of the area, began a volume at 02:38 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 6, 7:36 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.6 hours before the alert went out and 66 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 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 71 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 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939587897Sfc1 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
71 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
3793 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 070236
TORLBF
NEC041-070315-
/O.NEW.KLBF.TO.W.0056.070607T0236Z-070607T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
936 PM CDT WED JUN 6 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  CUSTER COUNTY IN CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF BROKEN BOW...

* UNTIL 1015 PM CDT

* AT 933 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CALLAWAY...
  OR ABOUT 16 MILES SOUTHWEST OF BROKEN BOW...MOVING NORTHEAST AT 45
  MPH.

* THE TORNADO WILL BE NEAR...
  MERNA BY 950 PM CDT...
  BROKEN BOW BY 955 PM CDT...
  7 MILES NORTHWEST OF WEISSERT BY 1005 PM CDT...
  9 MILES SOUTHEAST OF GATES BY 1010 PM CDT...
  SARGENT BY 1015 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 300 AM CDT THURSDAY MORNING
FOR WESTERN NEBRASKA.

LAT...LON 4111 10020 4106 9965 4173 9923 4173 10002

$$

BUTTLER/ODER
2 follow-up statements
000 
WWUS53 KLBF 070249
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
949 PM CDT WED JUN 6 2007

NEC041-070315-
/O.CON.KLBF.TO.W.0056.000000T0000Z-070607T0315Z/
CUSTER NE-
949 PM CDT WED JUN 6 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR CUSTER
COUNTY...

AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 8 MILES NORTHEAST OF
CALLAWAY...OR ABOUT 9 MILES WEST OF BROKEN BOW...MOVING NORTHEAST AT
45 MPH.

THE TORNADO WILL BE NEAR...
  BROKEN BOW BY 955 PM CDT...
  7 MILES NORTHWEST OF WEISSERT BY 1010 PM CDT...
  6 MILES SOUTHWEST OF SARGENT BY 1015 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 300 AM CDT THURSDAY MORNING
FOR WESTERN NEBRASKA.

LAT...LON 4111 10020 4106 9965 4173 9923 4173 10002

$$

BUTTLER/ODER
000 
WWUS53 KLBF 070307
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1006 PM CDT WED JUN 6 2007

NEC041-070316-
/O.EXP.KLBF.TO.W.0056.000000T0000Z-070607T0315Z/
CUSTER NE-
1006 PM CDT WED JUN 6 2007

...THE TORNADO WARNING FOR CUSTER COUNTY EXPIRES AT 1015 PM CDT...

THE TORNADO WARNING FOR CUSTER COUNTY WILL BE ALLOWED TO EXPIRE.  
THE STORM RESPONSIBLE FOR THE WARNING HAS WEAKENED.  IF SEVERE 
WEATHER WAS OBSERVED...CONTACT YOUR LOCAL LAW ENFORCEMENT AND HAVE 
THEM RELAY THE INFORMATION TO THE NATIONAL WEATHER SERVICE IN NORTH 
PLATTE.

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

LAT...LON 4111 10020 4106 9965 4173 9923 4173 10002

$$

BUTTLER/ODER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 8:01 PM CDTSevere Thunderstorm WarningLBFBlaine, Logan59 min
Jun 6, 8:01 PM CDTSevere Thunderstorm WarningLBFCuster44 min
Jun 6, 8:07 PM CDTSevere Thunderstorm WarningLBFBrown, Keya Paha, Rock53 min
Jun 6, 8:39 PM CDTTornado WarningLBFCuster51 min
Jun 6, 8:44 PM CDTSevere Thunderstorm WarningLBFGarfield, Holt, Loup61 min
Jun 6, 8:48 PM CDTSevere Thunderstorm WarningLBFBlaine57 min
Jun 6, 8:53 PM CDTSevere Thunderstorm WarningLBFHolt, Rock52 min
Jun 6, 8:57 PM CDTSevere Thunderstorm WarningLBFLincoln33 min
Jun 6, 9:22 PM CDTSevere Thunderstorm WarningLBFFrontier21 min
Jun 6, 9:38 PM CDTSevere Thunderstorm WarningLBFLoup52 min
Jun 6, 9:41 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt64 min
Jun 6, 10:26 PM CDTSevere Thunderstorm WarningLBFCuster49 min
Jun 6, 11:06 PM CDTSevere Thunderstorm WarningLBFGarfield39 min
Jun 7, 4:02 AM CDTWind AdvisoryLBFArthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more17 hr
Jun 7, 10:18 AM CDTHigh Wind WarningLBFArthur, Deuel, Garden, Grant, Keith6 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.