Alert archive / Kansas / Tornado Watches in 2005

Tornado Watch 248

May 11, 200517 counties in Kansas; 13 counties in Nebraska

The Storm Prediction Center issued this tornado watch at May 11, 2005, 2:55 PM CDT for 17 counties in Kansas; 13 counties in Nebraska. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 11, 2005, 2:55 PM CDT (19:55 UTC)
Expired
May 11, 2005, 10:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 30 counties

Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellis County, KS, Geary County, KS, Jewell County, KS, Lincoln County, KS, Mitchell County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Republic County, KS, Rooks County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Washington County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Gosper County, NE, Harlan County, NE, Jefferson County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Saline County, NE, Thayer County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 49 km from the middle of the area, began a volume at 19:55 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.

Warnings issued inside it

30 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 11, 3:11 PM CDTSevere Thunderstorm WarningGIDKearney49 min
May 11, 3:39 PM CDTSevere Thunderstorm WarningGIDPhillips66 min
May 11, 3:47 PM CDTSevere Thunderstorm WarningGIDAdams, Webster58 min
May 11, 3:52 PM CDTTornado WarningGIDAdams, Webster38 min
May 11, 3:55 PM CDTTornado WarningGIDFurnas, Harlan47 min
May 11, 4:01 PM CDTTornado WarningGIDKearney44 min
May 11, 4:26 PM CDTTornado WarningGIDAdams64 min
May 11, 4:37 PM CDTSevere Thunderstorm WarningGIDDawson, Gosper53 min
May 11, 4:41 PM CDTTornado WarningGIDBuffalo, Kearney49 min
May 11, 4:45 PM CDTSevere Thunderstorm WarningGIDNuckolls33 min
May 11, 4:56 PM CDTSevere Thunderstorm WarningTOPMarshall, Washington49 min
May 11, 5:23 PM CDTTornado WarningGIDAdams, Clay42 min
May 11, 5:31 PM CDTTornado WarningGIDGosper46 min
May 11, 5:37 PM CDTFlash Flood WarningGIDAdams, Hall4 hr
May 11, 5:41 PM CDTSevere Thunderstorm WarningTOPWashington49 min
May 11, 5:44 PM CDTFlash Flood WarningTOPWashington3 hr
May 11, 6:26 PM CDTSevere Thunderstorm WarningGIDPhelps64 min
May 11, 6:30 PM CDTSevere Thunderstorm WarningTOPWashington30 min
May 11, 6:40 PM CDTSevere Thunderstorm WarningGIDAdams52 min
May 11, 7:42 PM CDTSevere Thunderstorm WarningOAXJefferson33 min
May 11, 7:44 PM CDTSevere Thunderstorm WarningGIDNuckolls44 min
May 11, 8:08 PM CDTSevere Thunderstorm WarningGIDKearney67 min
May 11, 8:11 PM CDTSevere Thunderstorm WarningGIDFranklin, Harlan64 min
May 11, 8:13 PM CDTSevere Thunderstorm WarningOAXJefferson47 min
May 11, 8:34 PM CDTFlash Flood WarningGIDAdams, Buffalo, Clay, Dawson, Fillmore, Franklin and 18 more6 hr
May 11, 8:39 PM CDTSevere Thunderstorm WarningGIDFillmore66 min
May 11, 9:15 PM CDTSevere Thunderstorm WarningGIDKearney63 min
May 11, 9:31 PM CDTSevere Thunderstorm WarningGIDAdams13 min
May 11, 9:42 PM CDTSevere Thunderstorm WarningGIDFillmore63 min
May 11, 9:55 PM CDTSevere Thunderstorm WarningGIDAdams65 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.9 hours before the alert went out and 218 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°0°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 
WWUS20 KWNS 111951
SEL8  
SPC WW 111951
KSZ000-NEZ000-120300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 248
NWS STORM PREDICTION CENTER NORMAN OK
255 PM CDT WED MAY 11 2005

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       NORTH CENTRAL KANSAS
       SOUTH CENTRAL NEBRASKA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM UNTIL
1000 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH OF HILL CITY KANSAS
TO 45 MILES SOUTH OF BEATRICE NEBRASKA.  FOR A COMPLETE DEPICTION
OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS
WOU8).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 245...WW 246...WW 247...

DISCUSSION...VERY RAPID SEVERE THUNDERSTORM DEVELOPMENT MAY OCCUR
DURING THE NEXT HOUR OR TWO OVER N-CENTRAL KS...WHERE VIS IMAGERY
INDICATES A FEW TOWERS DEVELOPING WITHIN STRONGLY UNSTABLE AND
WEAKLY CAPPED AIR MASS.  SHEAR REMAINS SUFFICIENT FOR SUPERCELLS
WITH STRONG LOW LEVEL SHEAR AND PRESENCE OF E-W SFC BOUNDARIES
LIKELY SUPPORTING A THREAT OF STRONG TORNADOES ALONG WITH VERY LARGE
HAIL THIS EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 24025.


...EVANS

404,0995 403,0964 384,0964 384,0995

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 7:00 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Norton, Phillips, Rawlins, Smith7 hr
May 11, 8:41 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Doniphan, Douglas, Geary and 12 more2 hr
May 11, 11:45 AM CDTTornado WatchSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more7 hr
May 11, 2:36 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Ellis, Finney, Gove, Graham and 27 more114 min
May 11, 3:10 PM CDTTornado WatchSPCCheyenne, Clark, Decatur, Finney, Ford, Gove and 24 more7 hr
May 11, 3:41 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 4 more94 min
May 11, 4:50 PM CDTSevere Thunderstorm WatchSPCJohnson, Linn, Miami6 hr
May 11, 4:53 PM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Ellis, Geary, Jewell and 11 more97 min
May 11, 5:13 PM CDTMesoscale DiscussionSPCCheyenne, Clark, Decatur, Finney, Ford, Gove and 24 more92 min
May 11, 5:25 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 13 more2 hr
May 11, 6:45 PM CDTSevere Thunderstorm WatchSPCBrown, Jackson, Jefferson, Marshall, Nemaha, Pottawatomie and 1 more7 hr
May 10, 9:14 PM CDTMesoscale DiscussionSPCBurt, Butler, Colfax, Cuming, Dakota, Dodge and 10 more2 hr
May 11, 3:55 PM CDTSevere Thunderstorm WatchSPCAdams, Arthur, Boone, Buffalo, Butler, Chase and 34 more8 hr
May 11, 4:00 PM CDTMesoscale DiscussionSPCAntelope, Arthur, Blaine, Boone, Brown, Buffalo and 25 more2 hr

Nearby

Tornado Watches in Kansas, 2005Tornado Watches in Nebraska, 2005Every tornado watch 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.