Alert archive / Missouri / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 626

July 13, 2004Johnson County, Miami County, Wyandotte County, Kansas; 34 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jul 13, 2004, 7:00 PM CDT for Johnson County, Miami County, Wyandotte County, Kansas; 34 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 13, 2004, 7:00 PM CDT (00:00 UTC)
Expired
Jul 14, 2004, 12:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 37 counties

Johnson County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Knox County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Moniteau County, MO, Monroe County, MO, Morgan County, MO, Pettis County, MO, Platte County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Shelby County, MO, Sullivan County, MO

The radar

The Pleasant Hill radar (KEAX), 91 km from the middle of the area, began a volume at 00:01 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

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

IssuedProductOfficeCountiesLasted
Jul 13, 7:02 PM CDTSevere Thunderstorm WarningEAXDeKalb58 min
Jul 13, 7:10 PM CDTSevere Thunderstorm WarningEAXCaldwell, Clinton65 min
Jul 13, 7:44 PM CDTSevere Thunderstorm WarningEAXClay, Ray61 min
Jul 13, 7:49 PM CDTSevere Thunderstorm WarningEAXCarroll, Chariton56 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 00:00Z, 0.0 hours before the alert went out and 170 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 00:00Z on 2004-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3643 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 00:00Z on 2004-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939Sfc1 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
3643 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
2081 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 11:13 PM CDTMesoscale DiscussionSPCMississippi2 hr
Jul 14, 1:45 PM CDTSevere Thunderstorm WatchSPCDunklin, Pemiscot5 hr
Jul 14, 3:44 PM CDTMesoscale DiscussionSPCDunklin, Pemiscot91 min

Nearby

Severe Thunderstorm Watches in Missouri, 2004Severe Thunderstorm Watches in Kansas, 2004Every severe thunderstorm watch in 2004

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.