Alert archive / Kansas / Tornado Watches in 2004

Tornado Watch 196

May 12, 200428 counties in Kansas; 5 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at May 12, 2004, 9:25 PM CDT for 28 counties in Kansas; 5 counties in Oklahoma. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 12, 2004, 9:25 PM CDT (02:25 UTC)
Expired
May 13, 2004, 4:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 33 counties

Allen County, KS, Anderson County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Coffey County, KS, Cowley County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Labette County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Reno County, KS, Rice County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Alfalfa County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Nowata County, OK

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 12, 9:48 PM CDTFlash Flood WarningICTHarper6 hr
May 12, 10:08 PM CDTSevere Thunderstorm WarningICTKingman52 min
May 12, 10:15 PM CDTFlash Flood WarningICTKingman6 hr
May 12, 10:16 PM CDTTornado WarningICTSumner59 min
May 12, 10:21 PM CDTSevere Thunderstorm WarningICTSedgwick54 min
May 12, 11:10 PM CDTSevere Thunderstorm WarningICTSedgwick65 min
May 12, 11:33 PM CDTSevere Thunderstorm WarningICTKingman57 min
May 12, 11:48 PM CDTSevere Thunderstorm WarningICTButler57 min
May 12, 11:59 PM CDTFlash Flood WarningICTSedgwick, Sumner6 hr
May 13, 12:57 AM CDTSevere Thunderstorm WarningICTReno63 min
May 13, 1:35 AM CDTSevere Thunderstorm WarningICTKingman55 min
May 13, 1:59 AM CDTSevere Thunderstorm WarningICTReno61 min
May 13, 3:45 AM CDTSevere Thunderstorm WarningICTSedgwick60 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

Lamont, OK (KLMN), launched 00:00Z, 2.4 hours before the alert went out and 136 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, Lamont, OK at 00:00Z on 2004-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4023 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, Lamont, OK at 00:00Z on 2004-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.19395878Sfc1 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
4023 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1092 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
3.5
Supercell composite
18.3

Open this sounding in Storm Lab

The text

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

439 
WWUS20 KWNS 130227
SEL6  
SPC WW 130225
KSZ000-OKZ000-130900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 196
NWS STORM PREDICTION CENTER NORMAN OK
925 PM CDT WED MAY 12 2004

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

       SOUTHERN AND EASTERN KANSAS
       EXTREME NORTHERN AND NORTHEASTERN OKLAHOMA

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 925 PM
UNTIL 400 AM CDT.

TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 30 MILES NORTHEAST OF CHANUTE KANSAS TO 60
MILES WEST SOUTHWEST OF WICHITA KANSAS.

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 193. WATCH NUMBER 193 WILL NOT BE IN EFFECT AFTER 925
PM CDT. CONTINUE...WW 194...WW 195...

DISCUSSION...INTENSE SUPERCELL CLUSTER OVER S CENTRAL KS WILL
PERSIST FOR THE NEXT COUPLE OF HOURS AS THE LLJ INCREASES TO 30-40
KT AND FEEDS 70 DEWPOINTS INTO THIS AREA FROM NRN OK...WITH THE
POSSIBILITY OF TORNADOES AND VERY LARGE HAIL.  EXPECT THE SEVERE
THREAT TO TRANSITION TO DAMAGING WINDS AND LARGE HAIL LATER TONIGHT
AS STORMS GRADUALLY MERGE AND GROW UPSCALE INTO A LARGER MCS WITH
THE THREAT FOR DAMAGING WINDS AND LARGE HAIL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 27020.


...THOMPSON

365,0950 361,0982 382,0982 390,0950

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 7:08 PM CDTMesoscale DiscussionSPCCheyenne, Finney, Gove, Grant, Gray, Greeley and 11 more67 min
May 12, 9:08 PM CDTMesoscale DiscussionSPCAllen, Anderson, Barber, Barton, Butler, Chase and 41 more37 min
May 12, 9:37 PM CDTMesoscale DiscussionSPCFinney, Greeley, Hamilton, Kearny, Logan, Scott and 4 more53 min
May 12, 11:55 PM CDTMesoscale DiscussionSPCAllen, Anderson, Barber, Butler, Chautauqua, Coffey and 15 more2 hr
May 13, 3:12 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Butler, Chase, Chautauqua, Cherokee and 19 more63 min
May 13, 5:01 PM CDTMesoscale DiscussionSPCAllen, Anderson, Butler, Chase, Chautauqua, Coffey and 12 more89 min
May 12, 8:04 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Comanche, Cotton, Custer and 7 more86 min
May 13, 10:20 AM CDTMesoscale DiscussionSPCAtoka, Blaine, Caddo, Canadian, Carter, Cleveland and 35 more115 min
May 13, 10:45 AM CDTSevere Thunderstorm WatchSPCAdair, Caddo, Canadian, Carter, Cherokee, Cleveland and 35 more6 hr
May 13, 12:48 PM CDTMesoscale DiscussionSPCAdair, Atoka, Caddo, Canadian, Carter, Cherokee and 41 more117 min
May 13, 2:48 PM CDTMesoscale DiscussionSPCAdair, Carter, Cherokee, Cleveland, Coal, Cotton and 29 more87 min

Nearby

Tornado Watches in Kansas, 2004Tornado Watches in Oklahoma, 2004Every tornado watch in 2004

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.