Alert archive / Nebraska / Tornado Warnings in 2008

Tornado Warning 13, NWS North Platte, NE

May 22, 2008Frontier County, Nebraska

NWS North Platte, NE issued this tornado warning at May 22, 2008, 8:06 PM CDT for Frontier 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: May 22, 2008, 8:06 PM CDT (01:06 UTC)
Expired: May 22, 2008, 8:45 PM CDT
In force: 39 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Frontier County, NE

The radar

The Grand Island radar (KUEX), 145 km from the middle of the area, began a volume at 01:08 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.

Issued	Product	Office	Lasted
May 22, 3:13 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.1 hours before the alert went out and 83 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: 169 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 489 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 336 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 230106
TORLBF
NEC063-230145-
/O.NEW.KLBF.TO.W.0013.080523T0106Z-080523T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
806 PM CDT THU MAY 22 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN FRONTIER COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 845 PM CDT

* AT 804 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MEDICINE
  CREEK RESERVOIR STATE RECREATION AREA...OR 26 MILES SOUTHEAST OF
  CURTIS...MOVING NORTH AT 33 MPH.

* THE TORNADO WILL BE NEAR...
  6 MILES WEST OF EUSTIS BY 845 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.

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 1000 PM CDT THURSDAY EVENING
FOR THE PANHANDLE AND SOUTHWEST NEBRASKA.

LAT...LON 4069 10029 4069 9999 4044 10004 4043 10007
      4036 10007 4034 10009 4034 10015 4033 10016
      4033 10030
TIME...MOT...LOC 0106Z 185DEG 29KT 4037 10018

$$

DDB

2 follow-up statements

000 
WWUS53 KLBF 230120
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
820 PM CDT THU MAY 22 2008

NEC063-230145-
/O.CON.KLBF.TO.W.0013.000000T0000Z-080523T0145Z/
FRONTIER NE-
820 PM CDT THU MAY 22 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR EASTERN
FRONTIER COUNTY...

AT 818 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR HIGHWAY 18 MILE
MARKER 20...OR 22 MILES SOUTHEAST OF CURTIS...MOVING NORTH AT 33 MPH.

THE TORNADO WILL BE NEAR...
  HIGHWAY 18 MILE MARKER 20 AND HIGHWAY 18 MILE MARKER 30 BY 825 PM
  CDT...
  6 MILES WEST OF EUSTIS BY 845 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 1000 PM CDT THURSDAY EVENING
FOR THE PANHANDLE AND SOUTHWEST NEBRASKA.

LAT...LON 4069 10029 4069 9999 4044 10004 4043 10007
      4036 10007 4034 10009 4034 10015 4033 10016
      4033 10030
TIME...MOT...LOC 0120Z 185DEG 29KT 4048 10017

$$

DDB

000 
WWUS53 KLBF 230146
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
844 PM CDT THU MAY 22 2008

NEC063-230154-
/O.EXP.KLBF.TO.W.0013.000000T0000Z-080523T0145Z/
FRONTIER NE-
844 PM CDT THU MAY 22 2008

...THE TORNADO WARNING FOR EASTERN FRONTIER COUNTY WILL EXPIRE AT 845
PM CDT/745 PM MDT/...

THE STORM THAT PROMPTED THE TORNADO WARNING FOR EASTERN FRONTIER 
COUNTY HAS MOVED OUT OF THE AREA.  THEREFORE THE TORNADO WARNING HAS 
BEEN ALLOWED TO EXPIRE.  MORE THUNDERSTORMS ARE POSSIBLE OVERNIGHT.  
SOME OF THESE STORMS MAY BECOME SEVERE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR THE PANHANDLE AND SOUTHWEST NEBRASKA.


LAT...LON 4069 10029 4069 9999 4044 10004 4043 10007
      4036 10007 4034 10009 4034 10015 4033 10016
      4033 10030
TIME...MOT...LOC 0144Z 185DEG 29KT 4067 10015

$$

DDB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:55 AM CDT	Flash Flood Watch	LBF	Chase, Custer, Frontier, Hayes, Keith, Lincoln and 1 more	24 hr
May 23, 8:07 AM CDT	Flash Flood Warning	LBF	Frontier, Hayes, Lincoln	9 hr
May 23, 2:00 PM CDT	Flash Flood Warning	LBF	Lincoln	6 hr
May 23, 2:26 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	49 min
May 23, 3:13 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	47 min
May 23, 3:18 PM CDT	Tornado Warning	LBF	Frontier	27 min
May 23, 4:03 PM CDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	42 min
May 23, 4:15 PM CDT	Wind Advisory	LBF	Arthur, Chase, Cherry, Deuel, Frontier, Garden and 10 more	10 hr
May 23, 4:31 PM CDT	Severe Thunderstorm Warning	LBF	Custer	29 min
May 23, 4:44 PM CDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	46 min
May 23, 5:02 PM CDT	Flash Flood Warning	LBF	Frontier, Hayes	6 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.