Alert archive / Kansas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 724

July 11, 200330 counties in Kansas; 21 counties in Missouri; 4 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Jul 11, 2003, 3:45 PM CDT for 30 counties in Kansas; 21 counties in Missouri; 4 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 11, 2003, 3:45 PM CDT (20:45 UTC)
Expired: Jul 11, 2003, 10:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 55 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Chase County, KS, Cherokee County, KS, Clay County, KS, Coffey County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Riley 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, Cass County, MO, Cedar County, MO, Christian County, MO, Clay County, MO, Dade County, MO, Greene County, MO, Henry County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Craig County, OK, Nowata County, OK, Ottawa County, OK, Washington County, OK

The radar

The Pleasant Hill radar (KEAX), 80 km from the middle of the area, began a volume at 20:48 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

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

Issued	Product	Office	Counties	Lasted
Jul 11, 4:39 PM CDT	Severe Thunderstorm Warning	EAX	Henry	66 min
Jul 11, 7:08 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin	52 min
Jul 11, 7:42 PM CDT	Severe Thunderstorm Warning	TOP	Franklin	33 min
Jul 11, 7:45 PM CDT	Severe Thunderstorm Warning	EAX	Linn	60 min
Jul 11, 8:09 PM CDT	Severe Thunderstorm Warning	TOP	Coffey, Osage	36 min
Jul 11, 8:13 PM CDT	Severe Thunderstorm Warning	EAX	Bates	62 min
Jul 11, 8:23 PM CDT	Severe Thunderstorm Warning	SGF	Bourbon	67 min
Jul 11, 8:42 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	33 min
Jul 11, 8:54 PM CDT	Severe Thunderstorm Warning	ICT	Allen	66 min
Jul 11, 8:57 PM CDT	Severe Thunderstorm Warning	SGF	Crawford	63 min
Jul 11, 9:00 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	60 min
Jul 11, 9:08 PM CDT	Severe Thunderstorm Warning	SGF	St. Clair	52 min
Jul 11, 9:12 PM CDT	Severe Thunderstorm Warning	SGF	Barton	63 min
Jul 11, 9:50 PM CDT	Severe Thunderstorm Warning	SGF	Cherokee	55 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, 8.8 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 6 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1664 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 275 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 2:41 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Coffey and 23 more	2 hr
Jul 11, 4:38 PM CDT	Mesoscale Discussion	SPC	Grant, Haskell, Meade, Morton, Seward, Stanton and 1 more	97 min
Jul 11, 5:10 PM CDT	Severe Thunderstorm Watch	SPC	Benton, Camden, Dallas, Douglas, Hickory, Howell and 9 more	5 hr
Jul 11, 5:25 PM CDT	Severe Thunderstorm Watch	SPC	Beaver, Cimarron, Texas	6 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2003 Severe Thunderstorm Watches in Missouri, 2003 Severe Thunderstorm Watches in Oklahoma, 2003 Every 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.