Alert archive / Missouri / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 729

July 11, 20034 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 11, 2003, 9:40 PM CDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 11, 2003, 9:40 PM CDT (02:40 UTC)
Expired
Jul 12, 2003, 3:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 63 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Fulton County, AR, Independence County, AR, Izard County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Washington County, AR, Allen County, KS, Anderson County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Polk County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Ottawa County, OK, Rogers County, OK, Washington County, OK

The radar

The Springfield radar (KSGF), 83 km from the middle of the area, began a volume at 02:42 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

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

IssuedProductOfficeCountiesLasted
Jul 11, 9:50 PM CDTSevere Thunderstorm WarningSGFCherokee55 min
Jul 11, 9:55 PM CDTSevere Thunderstorm WarningSGFOregon65 min
Jul 11, 10:25 PM CDTSevere Thunderstorm WarningSGFBarry, Christian, Stone80 min
Jul 11, 10:43 PM CDTSevere Thunderstorm WarningSGFTaney77 min
Jul 11, 10:44 PM CDTSevere Thunderstorm WarningSGFDent61 min
Jul 11, 10:53 PM CDTSevere Thunderstorm WarningTSACarroll52 min
Jul 11, 10:55 PM CDTSevere Thunderstorm WarningLZKBoone, Marion60 min
Jul 11, 11:00 PM CDTSevere Thunderstorm WarningSGFBourbon60 min
Jul 11, 11:12 PM CDTSevere Thunderstorm WarningSGFMcDonald63 min
Jul 11, 11:14 PM CDTSevere Thunderstorm WarningLZKBaxter61 min
Jul 11, 11:14 PM CDTFlash Flood WarningSGFDent4 hr
Jul 11, 11:24 PM CDTSevere Thunderstorm WarningTSABenton81 min
Jul 11, 11:38 PM CDTSevere Thunderstorm WarningSGFShannon52 min
Jul 11, 11:39 PM CDTSevere Thunderstorm WarningTSACarroll, Madison81 min
Jul 11, 11:42 PM CDTSevere Thunderstorm WarningEAXLinn48 min
Jul 11, 11:48 PM CDTSevere Thunderstorm WarningLZKFulton, Izard62 min
Jul 11, 11:58 PM CDTSevere Thunderstorm WarningICTLabette, Neosho62 min
Jul 12, 12:02 AM CDTSevere Thunderstorm WarningSGFBourbon73 min
Jul 12, 12:30 AM CDTSevere Thunderstorm WarningSGFCrawford45 min
Jul 12, 12:40 AM CDTSevere Thunderstorm WarningSGFGreene65 min
Jul 12, 12:52 AM CDTSevere Thunderstorm WarningSGFBarton, Dade53 min
Jul 12, 1:14 AM CDTSevere Thunderstorm WarningSGFVernon46 min
Jul 12, 1:23 AM CDTFlash Flood WarningSGFVernon3 hr
Jul 12, 1:27 AM CDTSevere Thunderstorm WarningTOPAnderson48 min
Jul 12, 1:40 AM CDTSevere Thunderstorm WarningSGFLawrence80 min
Jul 12, 1:44 AM CDTSevere Thunderstorm WarningSGFBarton, Dade76 min
Jul 12, 1:48 AM CDTSevere Thunderstorm WarningICTAllen57 min
Jul 12, 1:58 AM CDTSevere Thunderstorm WarningSGFStone47 min
Jul 12, 1:59 AM CDTSevere Thunderstorm WarningSGFCedar61 min
Jul 12, 2:05 AM CDTSevere Thunderstorm WarningSGFBourbon70 min
Jul 12, 2:17 AM CDTSevere Thunderstorm WarningSGFVernon58 min
Jul 12, 2:20 AM CDTFlash Flood WarningSGFBarton, Dade3 hr
Jul 12, 2:36 AM CDTSevere Thunderstorm WarningSGFChristian, Greene69 min
Jul 12, 2:38 AM CDTSevere Thunderstorm WarningSGFStone67 min
Jul 12, 2:41 AM CDTSevere Thunderstorm WarningICTGreenwood64 min
Jul 12, 2:54 AM CDTSevere Thunderstorm WarningSGFCedar, Dade, Lawrence81 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 00:00Z, 2.7 hours before the alert went out and 63 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 00:00Z on 2003-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1159 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, Springfield, MO at 00:00Z on 2003-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
1159 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1763 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
309 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 7:04 PM CDTMesoscale DiscussionSPCBoone, Carroll86 min
Jul 11, 9:16 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Fulton, Izard and 1 more29 min
Jul 11, 11:51 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Crawford and 17 more84 min
Jul 12, 1:53 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Fulton, Izard and 8 more67 min
Jul 12, 3:10 AM CDTSevere Thunderstorm WatchSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 4 more5 hr
Jul 12, 6:33 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Franklin, Johnson and 6 more87 min
Jul 12, 4:26 PM CDTMesoscale DiscussionSPCBenton2 hr
Jul 11, 7:35 PM CDTSevere Thunderstorm WatchSPCCheyenne, Greeley, Logan, Rawlins, Scott, Sherman and 3 more5 hr
Jul 11, 9:52 PM CDTMesoscale DiscussionSPCCheyenne, Greeley, Logan, Scott, Sherman, Thomas and 2 more83 min
Jul 11, 7:34 PM CDTMesoscale DiscussionSPCBeaver, Beckham, Ellis, Greer, Harmon, Jackson and 3 more86 min

Nearby

Severe Thunderstorm Watches in Missouri, 2003Severe Thunderstorm Watches in Kansas, 2003Severe Thunderstorm Watches in Arkansas, 2003Every severe thunderstorm 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.