Alert archive / Nebraska / Tornado Warnings in 2005

Tornado Warning 11, NWS North Platte, NE

May 11, 2005Chase County, Nebraska

NWS North Platte, NE issued this tornado warning at May 11, 2005, 4:26 PM MDT for Chase County, Nebraska. It was in force for 49 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 11, 2005, 4:26 PM MDT (22:26 UTC)
Expired
May 11, 2005, 5:15 PM MDT
In force
49 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

County Chase County, NE

The radar

The Goodland radar (KGLD), 126 km from the middle of the area, began a volume at 22:28 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
May 11, 2:55 PM MDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.4 hours before the alert went out and 126 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 12:00Z on 2005-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2005-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
508 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
190 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 112226
TORLBF
NEC029-112315-
/O.NEW.KLBF.TO.W.0011.050511T2226Z-050511T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
426 PM MDT WED MAY 11 2005

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN CHASE COUNTY IN SOUTHWEST NEBRASKA

* UNTIL 515 PM MDT

* AT 422 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 22 MILES SOUTH
  OF LAMAR...OR ABOUT 27 MILES SOUTHWEST OF IMPERIAL...MOVING NORTH
  AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LAMAR BY 455 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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
WEDNESDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4036 10202 4036 10156 4069 10159 4069 10201

$$

13
2 follow-up statements
000 
WWUS53 KLBF 112246 RRA
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
547 PM CDT WED MAY 11 2005

NEC029-112315-
/O.CON.KLBF.TO.W.0011.000000T0000Z-050511T2315Z/
CHASE NE-
447 PM MDT WED MAY 11 2005

...A TORNADO WARNING CONTINUES UNTIL 515 PM MDT FOR WESTERN CHASE
COUNTY...

AT 442 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 15 MILES SOUTH OF
LAMAR...OR ABOUT 22 MILES SOUTHWEST OF IMPERIAL...MOVING NORTHEAST AT
25 MPH.

THE TORNADO WILL BE NEAR...
  LAMAR BY 510 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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
WEDNESDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4036 10202 4036 10156 4069 10159 4069 10201

$$

13
000 
WWUS53 KLBF 112315
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
614 PM CDT WED MAY 11 2005

NEC029-112324-
/O.EXP.KLBF.TO.W.0011.000000T0000Z-050511T2315Z/
CHASE NE-
514 PM MDT WED MAY 11 2005

...THE TORNADO WARNING FOR WESTERN CHASE COUNTY EXPIRES AT 515 PM
MDT...

ADDTIONAL THUNDERSTORMS WILL CONTINUE TO MOVE OUT OF NORTHWEST 
KANSAS INTO SOUTHWEST NEBRASKA...WITH THE SEVERE THREAT CONTINUING 
INTO THIS EVENING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
WEDNESDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4036 10202 4036 10156 4069 10159 4069 10201

$$

13

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 9:34 PM MDTSevere Thunderstorm WarningLBFHolt39 min
May 11, 2:16 PM MDTSevere Thunderstorm WarningLBFChase, Hayes44 min
May 11, 2:18 PM MDTSevere Thunderstorm WarningLBFLincoln42 min
May 11, 2:46 PM MDTSevere Thunderstorm WarningLBFMcPherson44 min
May 11, 2:59 PM MDTSevere Thunderstorm WarningLBFHayes46 min
May 11, 2:59 PM MDTSevere Thunderstorm WarningLBFLincoln61 min
May 11, 3:09 PM MDTSevere Thunderstorm WarningLBFFrontier51 min
May 11, 3:28 PM MDTSevere Thunderstorm WarningLBFMcPherson41 min
May 11, 3:36 PM MDTTornado WarningLBFFrontier39 min
May 11, 3:43 PM MDTSevere Thunderstorm WarningLBFHayes47 min
May 11, 3:43 PM MDTSevere Thunderstorm WarningLBFLincoln62 min
May 11, 3:57 PM MDTSevere Thunderstorm WarningLBFLincoln48 min
May 11, 4:07 PM MDTTornado WarningLBFLincoln39 min
May 11, 4:12 PM MDTTornado WarningLBFFrontier48 min
May 11, 4:16 PM MDTSevere Thunderstorm WarningLBFKeith42 min
May 11, 4:30 PM MDTFlash Flood WarningLBFFrontier90 min
May 11, 4:44 PM MDTSevere Thunderstorm WarningLBFLincoln46 min
May 11, 4:48 PM MDTSevere Thunderstorm WarningLBFLincoln57 min
May 11, 4:51 PM MDTFlash Flood WarningLBFLincoln3 hr
May 11, 5:29 PM MDTSevere Thunderstorm WarningLBFLincoln46 min
May 11, 5:38 PM MDTTornado WarningLBFChase53 min
May 11, 5:55 PM MDTSevere Thunderstorm WarningLBFPerkins65 min

Nearby

Tornado Warnings in Nebraska, 2005Every tornado warning in 2005Tornadoes in 2005

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.