Alert archive / Arkansas / Tornado Watches in 2003

Tornado Watch 342

May 10, 200328 counties in Arkansas; 5 counties in Illinois; 28 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 10, 2003, 4:00 PM CDT for 28 counties in Arkansas; 5 counties in Illinois; 28 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 10, 2003, 4:00 PM CDT (21:00 UTC)
Expired
May 10, 2003, 9:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 61 counties

Baxter County, AR, Boone County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Cross County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Logan County, AR, Marion County, AR, Newton County, AR, Poinsett County, AR, Pope County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Franklin County, IL, Jackson County, IL, Perry County, IL, Randolph County, IL, Union County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Douglas County, MO, Howell County, MO, Iron County, MO, Madison County, MO, Maries County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Phelps County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Taney County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 159 km from the middle of the area, began a volume at 21:02 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

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

IssuedProductOfficeCountiesLasted
May 10, 4:19 PM CDTSevere Thunderstorm WarningTSACarroll, Franklin, Madison56 min
May 10, 4:22 PM CDTSevere Thunderstorm WarningLZKJohnson, Newton53 min
May 10, 4:33 PM CDTSevere Thunderstorm WarningLZKBoone42 min
May 10, 4:59 PM CDTSevere Thunderstorm WarningLZKMarion31 min
May 10, 4:59 PM CDTSevere Thunderstorm WarningLZKPope36 min
May 10, 5:04 PM CDTSevere Thunderstorm WarningSGFHowell, Oregon, Shannon41 min
May 10, 5:07 PM CDTSevere Thunderstorm WarningLZKSearcy53 min
May 10, 5:10 PM CDTSevere Thunderstorm WarningSGFLaclede, Wright35 min
May 10, 5:12 PM CDTSevere Thunderstorm WarningTSAFranklin33 min
May 10, 5:16 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan49 min
May 10, 5:35 PM CDTSevere Thunderstorm WarningLZKPope, Van Buren40 min
May 10, 5:37 PM CDTSevere Thunderstorm WarningSGFTexas38 min
May 10, 5:40 PM CDTSevere Thunderstorm WarningSGFPhelps50 min
May 10, 5:41 PM CDTSevere Thunderstorm WarningSGFOregon, St. Clair49 min
May 10, 5:51 PM CDTSevere Thunderstorm WarningLZKStone44 min
May 10, 6:08 PM CDTSevere Thunderstorm WarningLSXCrawford37 min
May 10, 6:10 PM CDTSevere Thunderstorm WarningLZKIzard40 min
May 10, 6:24 PM CDTSevere Thunderstorm WarningSGFOregon51 min
May 10, 6:35 PM CDTSevere Thunderstorm WarningLZKIndependence, Stone50 min
May 10, 6:41 PM CDTSevere Thunderstorm WarningPAHCarter34 min
May 10, 6:58 PM CDTSevere Thunderstorm WarningLZKBaxter27 min
May 10, 7:15 PM CDTSevere Thunderstorm WarningLZKPope35 min
May 10, 7:20 PM CDTSevere Thunderstorm WarningLZKFulton30 min
May 10, 7:33 PM CDTSevere Thunderstorm WarningSGFHowell, Oregon42 min
May 10, 7:50 PM CDTSevere Thunderstorm WarningLZKSearcy, Stone, Van Buren25 min
May 10, 7:52 PM CDTSevere Thunderstorm WarningLZKSearcy, Stone, Van Buren23 min
May 10, 8:11 PM CDTSevere Thunderstorm WarningPAHRipley34 min
May 10, 8:56 PM CDTSevere Thunderstorm WarningLZKLogan34 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, 9.0 hours before the alert went out and 171 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 2003-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1867 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2003-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 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
1867 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
689 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
3.5
Supercell composite
12.5

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 102058
SEL2  
SPC WW 102100
ARZ000-ILZ000-MOZ000-110200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 342 
NWS STORM PREDICTION CENTER NORMAN OK 
400 PM CDT SAT MAY 10 2003

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

       NORTHERN ARKANSAS
       SOUTHERN ILLINOIS
       SOUTHERN MISSOURI

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
900 PM CDT.

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

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 90 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST
OF A LINE FROM 70 MILES WEST NORTHWEST OF CARBONDALE ILLINOIS TO
90 MILES SOUTH SOUTHEAST OF HARRISON 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...CONTINUE...WW 336...WW 337...WW 338...WW
339...WW 340...WW 341...


DISCUSSION...STRONG FORCING IS LIFTING NORTHEASTWARD ACROSS THE AREA
AND STORMS ARE EXPECTED TO EXPAND INTO THE AREA. STRONG LOW/MID
LEVEL SHEAR AND INSTABILITY INDICATES A POTENTIAL FOR STRONG
TORNADOES WITH VERY LARGE HAIL AND DAMAGING WINDS.   

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24045.


...IMY

380,0884 350,0905 350,0941 380,0921

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 10:54 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Fulton, Izard and 7 more66 min
May 10, 11:55 AM CDTTornado WatchSPCBenton, Carroll, Crawford, Madison, Sebastian, Washington7 hr
May 10, 1:59 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more2 hr
May 10, 3:30 PM CDTMesoscale DiscussionSPCBaxter, Boone, Cleburne, Fulton, Izard, Johnson and 8 more2 hr
May 9, 7:47 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Morgan, Pike, Scott88 min
May 9, 8:40 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clinton, Coles and 18 more2 hr
May 9, 10:04 PM CDTMesoscale DiscussionSPCAdams26 min
May 9, 10:40 PM CDTSevere Thunderstorm WatchSPCBrown, Cass, Champaign, DeWitt, Ford, Fulton and 22 more5 hr
May 10, 5:43 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, Fulton and 15 more92 min
May 10, 5:50 AM CDTSevere Thunderstorm WatchSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 25 more5 hr
May 10, 8:30 AM CDTTornado WatchSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 9 more6 hr
May 10, 9:25 AM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more2 hr
May 10, 10:39 AM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 5 more2 hr
May 10, 12:38 PM CDTMesoscale DiscussionSPCClay, Crawford, Jasper, Lawrence, Richland97 min
May 10, 3:17 PM CDTMesoscale DiscussionSPCHancock, Henderson, Mercer, Rock Island58 min
May 10, 3:50 PM CDTTornado WatchSPCBureau, Carroll, Fulton, Henderson, Henry, Jo Daviess and 14 more6 hr
May 10, 4:48 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 25 more87 min
May 10, 5:40 PM CDTTornado WatchSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 21 more5 hr
May 10, 6:41 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 14 more64 min
May 9, 11:00 PM CDTSevere Thunderstorm WatchSPCAdair, Barton, Bates, Benton, Caldwell, Carroll and 36 more6 hr
May 10, 1:15 AM CDTSevere Thunderstorm WatchSPCAndrew5 hr
May 10, 1:22 AM CDTMesoscale DiscussionSPCNewton83 min
May 10, 2:28 AM CDTMesoscale DiscussionSPCAndrew, Buchanan92 min
May 10, 3:05 AM CDTTornado WatchSPCBarton, Bates, Benton, Cedar, Dade, Henry and 7 more5 hr
May 10, 3:15 AM CDTSevere Thunderstorm WatchSPCAdair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 25 more5 hr
May 10, 5:27 AM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Cass, Cedar, Dade and 9 more93 min
May 10, 7:06 AM CDTMesoscale DiscussionSPCAdair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 25 more54 min
May 10, 10:58 AM CDTMesoscale DiscussionSPCAdair, Andrew, Audrain, Barton, Bates, Benton and 42 more2 hr
May 10, 11:35 AM CDTTornado WatchSPCAdair, Audrain, Bates, Benton, Boone, Caldwell and 38 more7 hr
May 10, 1:42 PM CDTMesoscale DiscussionSPCAdair, Audrain, Bates, Benton, Boone, Caldwell and 38 more2 hr

Nearby

Tornado Watches in Arkansas, 2003Tornado Watches in Missouri, 2003Tornado Watches in Illinois, 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.