Alert archive / Nebraska / Tornado Warnings in 2008

Tornado Warning 12, NWS North Platte, NE

May 22, 2008Chase County, Hayes County, Perkins County, Nebraska

NWS North Platte, NE issued this tornado warning at May 22, 2008, 4:30 PM MDT for Chase County, Hayes County, Perkins County, Nebraska. It was in force for 45 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: May 22, 2008, 4:30 PM MDT (22:30 UTC)
Expired: May 22, 2008, 5:15 PM MDT
In force: 45 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

Counties Chase County, NE, Hayes County, NE, Perkins County, NE

The radar

The Goodland radar (KGLD), 134 km from the middle of the area, began a volume at 22:31 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	Remark
May 22, 4:57 PM MDT	HAIL 0.88	16 N Wauneta, 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 22, 2:13 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.5 hours before the alert went out and 99 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 599 m²/s²
0-3 km storm-relative helicity: 651 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 222230
TORLBF
NEC029-085-135-222315-
/O.NEW.KLBF.TO.W.0012.080522T2230Z-080522T2315Z/

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

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CHASE COUNTY IN SOUTHWEST NEBRASKA...
  THIS INCLUDES THE CITY OF IMPERIAL...
  WESTERN HAYES COUNTY IN SOUTHWEST NEBRASKA...
  SOUTHEASTERN PERKINS COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 515 PM MDT/615 PM CDT/

* AT 426 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A TORNADO 2 MILES SOUTH OF WAUNETA...OR 17 MILES SOUTHEAST OF
  IMPERIAL...MOVING NORTH AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  WAUNETA BY 435 PM MDT...
  ENDERS AND 6 MILES EAST OF ENDERS RESERVOIR STATE RECREATION AREA
  BY 440 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT THURSDAY
EVENING/1000 PM CDT THURSDAY EVENING/ FOR THE PANHANDLE AND SOUTHWEST
NEBRASKA.

LAT...LON 4077 10169 4080 10125 4036 10125 4034 10154
      4034 10163
TIME...MOT...LOC 2230Z 176DEG 26KT 4037 10141

$$

JWS

2 follow-up statements

000 
WWUS53 KLBF 222239
SVSLBF

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

NEC029-085-135-222315-
/O.CON.KLBF.TO.W.0012.000000T0000Z-080522T2315Z/
PERKINS NE-HAYES NE-CHASE NE-
438 PM MDT THU MAY 22 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM MDT/615 PM CDT/
FOR EASTERN CHASE...WESTERN HAYES AND SOUTHEASTERN PERKINS
COUNTIES...

AT 435 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR WAUNETA...OR 14
MILES EAST OF IMPERIAL...MOVING NORTH AT 40 MPH.

THE TORNADO WILL BE NEAR...
  RURAL EASTERN CHASE COUNTY AT 450 PM MDT
  RURAL WESTERN HAYES COUNTY AT 550 PM CDT
  RURAL SOUTHEASTERN PERKINS COUNTY AT 500 PM MDT
  RURAL NORTHEASTERN CHASE COUNTY AT 500 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT THURSDAY
EVENING/1000 PM CDT THURSDAY EVENING/ FOR THE PANHANDLE AND SOUTHWEST
NEBRASKA.

LAT...LON 4077 10169 4080 10125 4036 10125 4034 10154
      4034 10163
TIME...MOT...LOC 2238Z 178DEG 34KT 4049 10137

$$

JWS

000 
WWUS53 KLBF 222317
SVSLBF

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

NEC029-085-135-222325-
/O.EXP.KLBF.TO.W.0012.000000T0000Z-080522T2315Z/
PERKINS NE-HAYES NE-CHASE NE-
515 PM MDT THU MAY 22 2008

...THE TORNADO WARNING FOR EASTERN CHASE...WESTERN HAYES AND
SOUTHEASTERN PERKINS COUNTIES HAS EXPIRED...

AT 515 PM MDT...THE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND 
WAS NO LONGER POSING A SEVERE WEATHER RISK.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT THURSDAY
EVENING/1000 PM CDT THURSDAY EVENING/ FOR THE PANHANDLE AND SOUTHWEST
NEBRASKA.

LAT...LON 4077 10169 4080 10125 4036 10125 4034 10154
      4034 10163
TIME...MOT...LOC 2315Z 178DEG 34KT 7577 7388

$$

JWS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 6:54 PM MDT	Severe Thunderstorm Warning	LBF	Deuel	36 min
May 22, 2:53 AM MDT	Wind Advisory	LBF	Arthur, Chase, Cherry, Deuel, Garden, Grant and 3 more	12 hr
May 22, 11:48 AM MDT	Dense Fog Advisory	LBF	Arthur, Blaine, Chase, Custer, Deuel, Frontier and 10 more	3 hr
May 22, 2:48 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	42 min
May 22, 3:52 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Hooker, Keith, Lincoln, McPherson	38 min
May 22, 4:03 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Hayes, Perkins	42 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.