Alert archive / Missouri / Tornado Watches in 2003

Tornado Watch 308

May 8, 200319 counties in Kansas; 30 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 8, 2003, 4:40 PM CDT for 19 counties in Kansas; 30 counties in Missouri. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 8, 2003, 4:40 PM CDT (21:40 UTC)
Expired
May 8, 2003, 11:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 49 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Wyandotte County, KS, Andrew County, MO, Barton County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Clinton County, MO, Dade County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO, St. Clair County, MO, Vernon County, MO, Worth County, MO

The radar

The Pleasant Hill radar (KEAX), 63 km from the middle of the area, began a volume at 21:41 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

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

IssuedProductOfficeCountiesLasted
May 8, 4:45 PM CDTSevere Thunderstorm WarningTOPDouglas, Franklin30 min
May 8, 5:02 PM CDTSevere Thunderstorm WarningEAXMiami58 min
May 8, 5:07 PM CDTSevere Thunderstorm WarningEAXJohnson53 min
May 8, 5:23 PM CDTSevere Thunderstorm WarningEAXLeavenworth, Wyandotte37 min
May 8, 5:24 PM CDTSevere Thunderstorm WarningEAXLafayette, Ray51 min
May 8, 5:32 PM CDTSevere Thunderstorm WarningEAXJackson58 min
May 8, 5:49 PM CDTSevere Thunderstorm WarningEAXCaldwell41 min
May 8, 5:50 PM CDTSevere Thunderstorm WarningEAXCarroll55 min
May 8, 5:58 PM CDTSevere Thunderstorm WarningEAXDaviess, Livingston32 min
May 8, 6:13 PM CDTSevere Thunderstorm WarningEAXGrundy47 min
May 8, 6:33 PM CDTSevere Thunderstorm WarningEAXMercer, Putnam42 min
May 8, 6:52 PM CDTSevere Thunderstorm WarningEAXGrundy, Livingston38 min
May 8, 6:54 PM CDTTornado WarningTOPDouglas, Franklin51 min
May 8, 7:03 PM CDTTornado WarningTOPJackson, Jefferson42 min
May 8, 7:14 PM CDTTornado WarningICTAllen61 min
May 8, 7:21 PM CDTTornado WarningTOPAnderson39 min
May 8, 7:34 PM CDTTornado WarningEAXAtchison, Leavenworth41 min
May 8, 7:37 PM CDTTornado WarningEAXLinn53 min
May 8, 7:38 PM CDTTornado WarningTOPDouglas22 min
May 8, 7:39 PM CDTTornado WarningTOPDouglas21 min
May 8, 7:41 PM CDTTornado WarningTOPDouglas19 min
May 8, 7:43 PM CDTTornado WarningTOPJefferson17 min
May 8, 7:45 PM CDTSevere Thunderstorm WarningICTMontgomery60 min
May 8, 7:59 PM CDTTornado WarningICTMontgomery46 min
May 8, 8:19 PM CDTTornado WarningICTLabette56 min
May 8, 8:27 PM CDTTornado WarningEAXLinn63 min
May 8, 8:38 PM CDTSevere Thunderstorm WarningEAXCass67 min
May 8, 8:39 PM CDTSevere Thunderstorm WarningEAXNodaway36 min
May 8, 8:47 PM CDTSevere Thunderstorm WarningTOPDouglas, Jefferson28 min
May 8, 8:48 PM CDTTornado WarningSGFCherokee57 min
May 8, 8:54 PM CDTTornado WarningEAXCass36 min
May 8, 9:02 PM CDTTornado WarningEAXHenry58 min
May 8, 9:03 PM CDTSevere Thunderstorm WarningEAXJohnson57 min
May 8, 9:18 PM CDTTornado WarningEAXJohnson42 min
May 8, 10:00 PM CDTTornado WarningEAXJohnson30 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

Topeka, KS (KTOP), launched 12:00Z, 9.7 hours before the alert went out and 93 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, Topeka, KS at 12:00Z on 2003-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 12:00Z on 2003-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 427 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
427 m²/s²
0-3 km storm-relative helicity
517 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 082134
SEL8  
SPC WW 082140
KSZ000-MOZ000-090400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 308 
NWS STORM PREDICTION CENTER NORMAN OK 
440 PM CDT THU MAY 8 2003

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

       EASTERN KANSAS
       WESTERN MISSOURI

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 440 PM UNTIL
1100 PM CDT.

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

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 55 STATUTE MILES EAST AND WEST
OF A LINE FROM 35 MILES NORTHWEST OF SPICKARD MISSOURI TO 25 MILES
WEST SOUTHWEST OF JOPLIN MISSOURI.

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 301...WW 303...WW 304...WW
305...WW 306...WW 307...


DISCUSSION...SEVERE THUNDERSTORMS WILL RAPIDLY DEVELOP ACROSS ERN KS
 ALONG AND S OF E/W WARM FRONT JUST S OF MKC.  VERY FAVORABLE SHEAR
PROFILES AND STRONG INSTABILITY SUPPORT TORNADIC SUPERCELLS WITH
POTENTIAL FOR LONG LIVED SUPERCELLS AND VIOLENT TORNADOES. STORMS
WILL SPREAD NEWD INTO WRN MO.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24040.


...HALES

403,0930 370,0935 370,0955 403,0951

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 7:01 PM CDTMesoscale DiscussionSPCCheyenne, Greeley, Sherman, Wallace, Wichita89 min
May 8, 1:18 AM CDTMesoscale DiscussionSPCAllen, Barber, Barton, Bourbon, Butler, Chautauqua and 21 more3 hr
May 8, 1:55 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Barber, Barton, Bourbon, Butler and 44 more5 hr
May 8, 3:51 AM CDTMesoscale DiscussionSPCAtchison, Barber, Barton, Bourbon, Brown, Butler and 50 more3 hr
May 8, 4:15 AM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Clay, Cloud, Doniphan, Douglas and 19 more7 hr
May 8, 7:50 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more85 min
May 8, 7:55 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more95 min
May 8, 12:49 PM CDTMesoscale DiscussionSPCHarper, Sumner3 hr
May 8, 1:07 PM CDTMesoscale DiscussionSPCBarton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 16 more2 hr
May 8, 1:10 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Graham, Norton, Rawlins, Sheridan and 2 more2 hr
May 8, 1:30 PM CDTTornado WatchSPCCheyenne, Decatur, Gove, Graham, Logan, Norton and 6 more6 hr
May 8, 1:35 PM CDTTornado WatchSPCButler, Chautauqua, Cowley, Elk, Greenwood, Harper and 5 more7 hr
May 8, 1:50 PM CDTTornado WatchSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 31 more7 hr
May 8, 3:26 PM CDTMesoscale DiscussionSPCBrown, Clay, Cloud, Dickinson, Ellsworth, Geary and 22 more2 hr
May 8, 3:34 PM CDTMesoscale DiscussionSPCButler, Chase, Chautauqua, Coffey, Cowley, Elk and 10 more116 min
May 8, 3:35 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Logan, Norton and 6 more115 min
May 8, 4:16 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Cherokee, Crawford and 11 more29 min
May 8, 6:38 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 46 more2 hr
May 8, 9:55 AM CDTMesoscale DiscussionSPCDunklin, Pemiscot3 hr
May 8, 10:25 AM CDTTornado WatchSPCButler, Carter, Dunklin, Mississippi, New Madrid, Pemiscot and 3 more6 hr
May 8, 12:20 PM CDTSevere Thunderstorm WatchSPCAudrain, Franklin, Iron, Jefferson, Lincoln, Macon and 14 more4 hr
May 8, 12:24 PM CDTMesoscale DiscussionSPCButler, Carter, Dunklin, Mississippi, New Madrid, Pemiscot and 3 more2 hr
May 8, 2:11 PM CDTMesoscale DiscussionSPCAudrain, Knox, Lewis, Lincoln, Macon, Marion and 10 more2 hr
May 8, 5:31 PM CDTMesoscale DiscussionSPCBarry, McDonald, Newton, Stone59 min
May 8, 5:45 PM CDTTornado WatchSPCBarry, Lawrence, McDonald, Newton5 hr

Nearby

Tornado Watches in Missouri, 2003Tornado Watches in Kansas, 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.