Alert archive / Kansas / Tornado Watches in 2003

Tornado Watch 269

May 6, 20034 states

The Storm Prediction Center issued this tornado watch at May 6, 2003, 11:40 AM CDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 6, 2003, 11:40 AM CDT (16:40 UTC)
Expired
May 6, 2003, 7:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 77 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Madison County, AR, Newton County, AR, Pope County, AR, Washington County, AR, Allen County, KS, Anderson County, KS, Bourbon County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Johnson County, KS, Labette County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Shawnee County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Pettis County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Mayes County, OK, Muskogee County, OK, Nowata County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Rogers County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Springfield radar (KSGF), 94 km from the middle of the area, began a volume at 16:43 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

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

IssuedProductOfficeCountiesLasted
May 6, 11:40 AM CDTSevere Thunderstorm WarningTOPDouglas, Franklin65 min
May 6, 11:45 AM CDTSevere Thunderstorm WarningTOPOsage15 min
May 6, 12:12 PM CDTSevere Thunderstorm WarningEAXJohnson, Miami63 min
May 6, 12:59 PM CDTSevere Thunderstorm WarningEAXCass, Jackson76 min
May 6, 1:16 PM CDTSevere Thunderstorm WarningEAXMiami59 min
May 6, 1:18 PM CDTSevere Thunderstorm WarningEAXJohnson27 min
May 6, 1:37 PM CDTSevere Thunderstorm WarningEAXJohnson68 min
May 6, 2:13 PM CDTSevere Thunderstorm WarningEAXHenry77 min
May 6, 2:33 PM CDTSevere Thunderstorm WarningEAXPettis57 min
May 6, 2:36 PM CDTSevere Thunderstorm WarningSGFBourbon39 min
May 6, 2:44 PM CDTSevere Thunderstorm WarningEAXLinn76 min
May 6, 2:45 PM CDTSevere Thunderstorm WarningEAXJohnson30 min
May 6, 2:48 PM CDTSevere Thunderstorm WarningSGFBenton42 min
May 6, 2:56 PM CDTSevere Thunderstorm WarningSGFVernon49 min
May 6, 3:03 PM CDTTornado WarningEAXPettis42 min
May 6, 3:09 PM CDTTornado WarningSGFBenton36 min
May 6, 3:12 PM CDTSevere Thunderstorm WarningICTWilson, Woodson78 min
May 6, 3:12 PM CDTTornado WarningSGFBourbon48 min
May 6, 3:16 PM CDTTornado WarningSGFVernon44 min
May 6, 3:17 PM CDTTornado WarningSGFSt. Clair58 min
May 6, 3:20 PM CDTSevere Thunderstorm WarningICTAllen55 min
May 6, 3:30 PM CDTSevere Thunderstorm WarningTSAOkmulgee45 min
May 6, 3:33 PM CDTSevere Thunderstorm WarningEAXHenry57 min
May 6, 3:40 PM CDTSevere Thunderstorm WarningTOPAnderson50 min
May 6, 3:40 PM CDTTornado WarningSGFBenton50 min
May 6, 3:53 PM CDTSevere Thunderstorm WarningTSAWagoner52 min
May 6, 3:55 PM CDTTornado WarningICTAllen65 min
May 6, 4:05 PM CDTSevere Thunderstorm WarningTSAMuskogee70 min
May 6, 4:07 PM CDTTornado WarningSGFBourbon58 min
May 6, 4:10 PM CDTTornado WarningSGFSt. Clair35 min
May 6, 4:18 PM CDTTornado WarningSGFHickory42 min
May 6, 4:19 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers56 min
May 6, 4:20 PM CDTFlash Flood WarningSGFBenton, Morgan6 hr
May 6, 4:23 PM CDTTornado WarningSGFBenton37 min
May 6, 4:29 PM CDTSevere Thunderstorm WarningSGFCherokee61 min
May 6, 4:39 PM CDTTornado WarningTSAMuskogee66 min
May 6, 4:46 PM CDTTornado WarningSGFVernon59 min
May 6, 4:47 PM CDTSevere Thunderstorm WarningTSADelaware, Ottawa58 min
May 6, 4:49 PM CDTSevere Thunderstorm WarningSGFJasper56 min
May 6, 4:56 PM CDTSevere Thunderstorm WarningTSACraig64 min
May 6, 5:00 PM CDTSevere Thunderstorm WarningSGFDallas, Hickory30 min
May 6, 5:10 PM CDTSevere Thunderstorm WarningTSASequoyah50 min
May 6, 5:13 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee62 min
May 6, 5:15 PM CDTSevere Thunderstorm WarningTSAMayes45 min
May 6, 5:18 PM CDTSevere Thunderstorm WarningSGFBarton57 min
May 6, 5:23 PM CDTSevere Thunderstorm WarningSGFNewton67 min
May 6, 5:23 PM CDTTornado WarningTSASequoyah52 min
May 6, 5:30 PM CDTSevere Thunderstorm WarningSGFCherokee60 min
May 6, 5:32 PM CDTSevere Thunderstorm WarningSGFCedar, St. Clair58 min
May 6, 5:39 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, Muskogee, Pittsburg81 min
May 6, 5:48 PM CDTSevere Thunderstorm WarningTSACrawford, Washington57 min
May 6, 5:50 PM CDTSevere Thunderstorm WarningSGFDade55 min
May 6, 6:00 PM CDTSevere Thunderstorm WarningSGFHickory60 min
May 6, 6:03 PM CDTSevere Thunderstorm WarningSGFPolk57 min
May 6, 6:09 PM CDTSevere Thunderstorm WarningSGFBarton66 min
May 6, 6:13 PM CDTSevere Thunderstorm WarningTSASequoyah77 min
May 6, 6:14 PM CDTSevere Thunderstorm WarningTSABenton46 min
May 6, 6:19 PM CDTSevere Thunderstorm WarningTSAAdair41 min
May 6, 6:20 PM CDTSevere Thunderstorm WarningSGFNewton55 min
May 6, 6:24 PM CDTTornado WarningSGFDade51 min
May 6, 6:26 PM CDTTornado WarningTSAAdair34 min
May 6, 6:29 PM CDTSevere Thunderstorm WarningSGFBarry61 min
May 6, 6:32 PM CDTTornado WarningTSAWashington43 min
May 6, 6:33 PM CDTTornado WarningSGFPolk57 min
May 6, 6:36 PM CDTSevere Thunderstorm WarningSGFGreene, Lawrence39 min
May 6, 6:44 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin61 min
May 6, 6:47 PM CDTTornado WarningTSAMadison58 min
May 6, 6:49 PM CDTSevere Thunderstorm WarningSGFVernon56 min
May 6, 6:55 PM CDTSevere Thunderstorm WarningSGFChristian50 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

Springfield, MO (KSGF), launched 12:00Z, 4.7 hours before the alert went out and 94 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, Springfield, MO at 12:00Z on 2003-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 12:00Z on 2003-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.1939587897Sfc1 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
34 J/kg
Mixed-layer CIN
-216 J/kg
Mixed-layer LCL
1877 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
115 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 
WWUS20 KWNS 061644
SEL9  
SPC WW 061640
ARZ000-KSZ000-MOZ000-OKZ000-070000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 269 
NWS STORM PREDICTION CENTER NORMAN OK 
1140 AM CDT TUE MAY 6 2003

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

       NORTHWEST ARKANSAS
       SOUTHEAST AND EAST CENTRAL KANSAS
       SOUTHWEST AND WEST CENTRAL MISSOURI
       NORTHEAST OKLAHOMA

EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1140 AM UNTIL 700
PM CDT.

TORNADOES...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 ALONG AND 100 STATUTE MILES EAST AND
WEST OF A LINE FROM 20 MILES NORTH NORTHWEST OF OLATHE KANSAS TO
45 MILES SOUTH SOUTHWEST OF FAYETTEVILLE ARKANSAS.

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 SEVERE
THUNDERSTORM WATCH NUMBER 265. WATCH NUMBER 265 WILL NOT BE IN
EFFECT AFTER 1140 AM CDT. CONTINUE...WW 263...WW 266...WW 267...WW
268...


DISCUSSION...CONVECTION CONTINUES TO DEVELOP NEAR SURFACE LOW CENTER
INVOF ICT AND EWD ALONG WARM FRONT NORTH OF EMP.  DRY LINE EXTENDING
SWD FROM THE LOW CENTER SHOULD MIX/SHIFT EWD THIS AFTERNOON INTO
NORTHEASTERN OK AS SURFACE LOW TRACKS ENEWD INTO SERN KS.  GIVEN
DEGREE OF INSTABILITY AND STRENGTH OF LOW AND DEEP LAYER
SHEAR...TORNADIC SUPERCELLS SHOULD DEVELOP THROUGH THE REMAINDER OF
THE AFTERNOON.	INITIATION EXPECTED TO OCCUR A BIT LATER ALONG THE
DRY LINE...HOWEVER RAPID DEVELOP IS EXPECTED ONCE THIS OCCURS.

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 25035.


...EVANS

390,0930 352,0924 352,0961 390,0964

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 5, 9:05 PM CDTTornado WatchSPCPhillips7 hr
May 5, 10:58 PM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Fulton, Marion2 hr
May 6, 1:26 AM CDTMesoscale DiscussionSPCCrittenden, Lee, St. Francis3 hr
May 6, 1:50 AM CDTTornado WatchSPCClay, Craighead, Crittenden, Cross, Greene, Lee and 4 more6 hr
May 6, 5:06 AM CDTMesoscale DiscussionSPCCrittenden, Cross, Lee, Mississippi, Phillips, St. Francis3 hr
May 6, 10:32 AM CDTMesoscale DiscussionSPCBenton, Crawford, Franklin, Sebastian, Washington118 min
May 6, 3:05 PM CDTTornado WatchSPCLogan, Polk, Scott, Sebastian6 hr
May 6, 5:33 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Franklin, Fulton, Johnson and 6 more117 min
May 6, 6:55 PM CDTTornado WatchSPCBaxter, Benton, Boone, Carroll, Clark, Cleburne and 32 more5 hr
May 6, 6:49 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Coffey, Crawford, Douglas and 11 more3 hr
May 6, 7:55 AM CDTSevere Thunderstorm WatchSPCAnderson, Bourbon, Crawford, Franklin, Linn, Miami and 1 more5 hr
May 6, 8:50 AM CDTSevere Thunderstorm WatchSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 28 more4 hr
May 6, 11:29 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 17 more2 hr
May 6, 3:42 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Crawford, Labette and 4 more2 hr
May 6, 11:55 AM CDTSevere Thunderstorm WatchSPCCole, Crawford, Dent, Franklin, Gasconade, Iron and 16 more4 hr
May 6, 2:15 PM CDTTornado WatchSPCBoone, Callaway, Camden, Carter, Cole, Cooper and 27 more5 hr
May 6, 5:08 PM CDTMesoscale DiscussionSPCFranklin, Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis2 hr
May 6, 5:40 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Iron, Jefferson, Madison and 11 more6 hr
May 6, 6:35 PM CDTTornado WatchSPCBarry, Barton, Camden, Carter, Cedar, Christian and 31 more5 hr
May 6, 2:47 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Coal, Haskell, Latimer and 5 more118 min

Nearby

Tornado Watches in Kansas, 2003Tornado Watches in Missouri, 2003Tornado Watches in Oklahoma, 2003Every tornado watch in 2003

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.