Alert archive / Nebraska / Tornado Warnings in 2008

Tornado Warning 8, NWS North Platte, NE

May 6, 2008Frontier County, Nebraska

NWS North Platte, NE issued this tornado warning at May 6, 2008, 7:02 PM CDT for Frontier County, Nebraska. It was in force for 28 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: May 6, 2008, 7:02 PM CDT (00:02 UTC)
Expired: May 6, 2008, 7:30 PM CDT
In force: 28 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Frontier County, NE

The radar

The Grand Island radar (KUEX), 155 km from the middle of the area, began a volume at 00:02 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

Time	Report	Where
May 6, 7:17 PM CDT	HAIL 0.88	3 S Curtis, NE
May 6, 7:25 PM CDT	HAIL 0.75	4 Sw Stockville, NE
May 6, 7:32 PM CDT	FUNNEL CLOUD	6 S Stockville, NE
May 6, 7:32 PM CDT	HAIL 0.88	Eustis, NE

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.

Issued	Product	Office	Lasted
May 6, 2:50 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.0 hours before the alert went out and 73 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3 J/kg
Mixed-layer CIN: -226 J/kg
Mixed-layer LCL: 2909 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 93 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 070002
TORLBF
NEC063-070030-
/O.NEW.KLBF.TO.W.0008.080507T0002Z-080507T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
702 PM CDT TUE MAY 6 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  FRONTIER COUNTY IN SOUTHWEST NEBRASKA...
  THIS INCLUDES THE CITY OF CURTIS...

* UNTIL 730 PM CDT

* AT 700 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  STOCKVILLE...OR 6 MILES SOUTHEAST OF CURTIS...MOVING EAST AT 34
  MPH.

* THE TORNADO WILL BE NEAR...
  7 MILES NORTH OF MEDICINE CREEK RESERVOIR STATE RECREATION AREA BY
  725 PM CDT...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4067 10003 4048 10000 4045 10011 4036 10011
      4040 10073 4068 10074
TIME...MOT...LOC 0002Z 283DEG 29KT 4055 10044

$$

13

2 follow-up statements

000 
WWUS53 KLBF 070010 RRA
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
710 PM CDT TUE MAY 6 2008

NEC063-070030-
/O.CON.KLBF.TO.W.0008.000000T0000Z-080507T0030Z/
FRONTIER NE-
710 PM CDT TUE MAY 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR FRONTIER
COUNTY...

AT 708 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS POSSIBLE TORNADO WAS 
LOCATED NEAR STOCKVILLE...OR 9 MILES SOUTHEAST OF CURTIS...MOVING 
EAST AT 15 MPH.

THE TORNADO WILL BE NEAR...
  STOCKVILLE BY 715 PM CDT...
  6 MILES WEST OF HIGHWAY 18 MILE MARKER 20 AND 7 MILES NORTHWEST OF
  MEDICINE CREEK RESERVOIR STATE RECREATION AREA BY 730 PM CDT...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4067 10003 4048 10000 4045 10011 4036 10011
      4040 10073 4068 10074
TIME...MOT...LOC 0010Z 291DEG 13KT 4052 10042

$$

13

000 
WWUS53 KLBF 070021
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
721 PM CDT TUE MAY 6 2008

NEC063-070030-
/O.CON.KLBF.TO.W.0008.000000T0000Z-080507T0030Z/
FRONTIER NE-
721 PM CDT TUE MAY 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR FRONTIER
COUNTY...

AT 717 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF 
PRODUCING A TORNADO.  THIS STORM WAS LOCATED NEAR STOCKVILLE...OR 
13 MILES SOUTHEAST OF CURTIS...MOVING SOUTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  7 MILES SOUTHWEST OF HIGHWAY 18 MILE MARKER 20 BY 725 PM CDT...
  MEDICINE CREEK RESERVOIR STATE RECREATION AREA BY 730 PM CDT...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
TUESDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4067 10003 4048 10000 4045 10011 4036 10011
      4040 10073 4068 10074
TIME...MOT...LOC 0021Z 299DEG 32KT 4045 10035

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:30 PM CDT	Tornado Warning	LBF	Frontier	45 min

Nearby

Tornado Warnings in Nebraska, 2008 Every tornado warning in 2008 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.