Alert archive / Missouri / Tornado Watches in 2003

Tornado Watch 337

May 10, 2003Linn County, Miami County, Kansas; 44 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 10, 2003, 11:35 AM CDT for Linn County, Miami County, Kansas; 44 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 10, 2003, 11:35 AM CDT (16:35 UTC)
Expired
May 10, 2003, 7:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 46 counties

Linn County, KS, Miami County, KS, Adair County, MO, Audrain County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Caldwell County, MO, Callaway County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clark County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Knox County, MO, Lafayette County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Morgan County, MO, Pettis County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO

The radar

The Pleasant Hill radar (KEAX), 70 km from the middle of the area, began a volume at 16:35 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

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

IssuedProductOfficeCountiesLasted
May 10, 1:20 PM CDTSevere Thunderstorm WarningEAXCarroll55 min
May 10, 3:15 PM CDTSevere Thunderstorm WarningEAXCarroll, Ray60 min
May 10, 3:17 PM CDTSevere Thunderstorm WarningEAXDeKalb, Gentry43 min
May 10, 3:23 PM CDTSevere Thunderstorm WarningEAXJohnson67 min
May 10, 3:25 PM CDTSevere Thunderstorm WarningEAXHarrison50 min
May 10, 3:31 PM CDTSevere Thunderstorm WarningEAXDaviess44 min
May 10, 3:39 PM CDTTornado WarningEAXDaviess, Harrison51 min
May 10, 3:47 PM CDTTornado WarningEAXLinn58 min
May 10, 4:02 PM CDTTornado WarningEAXCarroll58 min
May 10, 4:11 PM CDTSevere Thunderstorm WarningEAXMercer64 min
May 10, 4:16 PM CDTSevere Thunderstorm WarningEAXLafayette, Saline59 min
May 10, 4:18 PM CDTTornado WarningEAXChariton42 min
May 10, 4:25 PM CDTTornado WarningEAXAdair, Sullivan65 min
May 10, 4:32 PM CDTTornado WarningEAXSaline43 min
May 10, 4:43 PM CDTTornado WarningEAXMacon47 min
May 10, 4:45 PM CDTSevere Thunderstorm WarningEAXPutnam60 min
May 10, 4:54 PM CDTTornado WarningLSXKnox51 min
May 10, 4:55 PM CDTTornado WarningEAXPutnam65 min
May 10, 5:07 PM CDTSevere Thunderstorm WarningEAXChariton, Howard53 min
May 10, 5:12 PM CDTSevere Thunderstorm WarningEAXRandolph63 min
May 10, 5:21 PM CDTTornado WarningEAXRandolph39 min
May 10, 5:21 PM CDTTornado WarningLSXShelby39 min
May 10, 5:28 PM CDTTornado WarningDVNClark, Scotland32 min
May 10, 5:35 PM CDTTornado WarningLSXMonroe40 min
May 10, 5:42 PM CDTTornado WarningLSXBoone, Moniteau48 min
May 10, 5:44 PM CDTTornado WarningEAXCooper46 min
May 10, 5:44 PM CDTTornado WarningLSXKnox, Lewis31 min
May 10, 5:47 PM CDTTornado WarningLSXLewis, Marion43 min
May 10, 5:56 PM CDTTornado WarningDVNClark34 min
May 10, 5:58 PM CDTTornado WarningEAXRandolph32 min
May 10, 6:01 PM CDTTornado WarningEAXPutnam29 min
May 10, 6:04 PM CDTSevere Thunderstorm WarningLSXShelby41 min
May 10, 6:13 PM CDTTornado WarningEAXHenry47 min
May 10, 6:13 PM CDTTornado WarningLSXMarion, Monroe, Ralls47 min
May 10, 6:28 PM CDTTornado WarningLSXLewis47 min
May 10, 6:29 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone61 min
May 10, 6:30 PM CDTSevere Thunderstorm WarningEAXSaline45 min
May 10, 6:52 PM CDTSevere Thunderstorm WarningEAXChariton38 min
May 10, 6:53 PM CDTTornado WarningLSXMarion52 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, 4.6 hours before the alert went out and 182 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 2003-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 271 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, Topeka, KS at 12:00Z on 2003-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 419 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
271 J/kg
Mixed-layer CIN
-301 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
419 m²/s²
0-3 km storm-relative helicity
474 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.9

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 101630
SEL7  
SPC WW 101635
KSZ000-MOZ000-110000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 337 
NWS STORM PREDICTION CENTER NORMAN OK 
1135 AM CDT SAT MAY 10 2003

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

       EXTREME EAST CENTRAL KANSAS
       CENTRAL AND NORTHERN MISSOURI

EFFECTIVE THIS SATURDAY MORNING AND EVENING FROM 1135 AM UNTIL 700
PM CDT.

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

DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES NORTH NORTHWEST OF KIRKSVILLE MISSOURI TO
40 MILES SOUTH OF KNOB NOSTER 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 335...WW 336...


DISCUSSION...EXPLOSIVE SEVERE THUNDERSTORM DEVELOPMENT IS EXPECTED
OVER EXTREME EASTERN KS OR WESTERN MO IN THE NEXT FEW HOURS...WITH
SEVERAL SUPERCELLS LIKELY.  STRENGTH OF VERTICAL WIND SHEAR...HIGH
CAPE VALUES...AND VERY STRONG UPPER TROUGH SUGGEST THE POTENTIAL FOR
DAMAGING TORNADOES AS WELL AS DESTRUCTIVE WINDS AND VERY LARGE HAIL.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25040.


...HART

402,0911 380,0920 380,0950 402,0941

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 7:45 PM CDTTornado WatchSPCButler, Chase, Coffey, Cowley, Elk, Greenwood and 7 more5 hr
May 9, 7:47 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 5 more88 min
May 9, 10:04 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 20 more26 min
May 9, 11:00 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 14 more6 hr
May 10, 12:49 AM CDTMesoscale DiscussionSPCAtchison, Barber, Brown, Butler, Chase, Clay and 24 more86 min
May 10, 1:15 AM CDTSevere Thunderstorm WatchSPCAtchison, Barber, Brown, Butler, Chase, Clay and 25 more5 hr
May 10, 2:28 AM CDTMesoscale DiscussionSPCAtchison, Barber, Brown, Butler, Chase, Clay and 25 more92 min
May 10, 3:05 AM CDTTornado WatchSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 17 more5 hr
May 10, 3:15 AM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Doniphan, Douglas, Geary, Jackson and 10 more5 hr
May 10, 5:27 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 20 more93 min
May 10, 7:06 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Geary, Jackson and 10 more54 min
May 10, 9:16 AM CDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery, Neosho, Wilson3 hr
May 10, 10:54 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Linn and 2 more66 min
May 10, 10:58 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Coffey and 18 more2 hr
May 10, 11:55 AM CDTTornado WatchSPCAllen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more7 hr
May 10, 1:42 PM CDTMesoscale DiscussionSPCMiami2 hr
May 10, 1:59 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more2 hr
May 10, 1:22 AM CDTMesoscale DiscussionSPCNewton83 min
May 10, 5:43 AM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Clark, Knox, Lewis and 11 more92 min
May 10, 5:50 AM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Clark, Cole, Franklin and 19 more5 hr
May 10, 9:25 AM CDTMesoscale DiscussionSPCIron, Jefferson, Madison, Perry, Sainte Genevieve, Saint Francois and 1 more2 hr
May 10, 3:17 PM CDTMesoscale DiscussionSPCClark, Schuyler, Scotland58 min
May 10, 3:30 PM CDTMesoscale DiscussionSPCCrawford, Dent, Douglas, Franklin, Gasconade, Howell and 16 more2 hr
May 10, 3:50 PM CDTTornado WatchSPCPutnam, Schuyler, Scotland6 hr
May 10, 4:00 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 22 more5 hr
May 10, 4:48 PM CDTMesoscale DiscussionSPCAdair, Audrain, Benton, Boone, Callaway, Chariton and 24 more87 min
May 10, 5:40 PM CDTTornado WatchSPCAdair, Audrain, Benton, Boone, Callaway, Chariton and 32 more5 hr
May 10, 6:41 PM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Cole, Cooper, Lewis and 13 more64 min

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.