Alert archive / Kansas / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 267

May 12, 200018 counties in Kansas; 17 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at May 12, 2000, 12:00 AM CDT for 18 counties in Kansas; 17 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 12, 2000, 12:00 AM CDT (05:00 UTC)
Expired: May 12, 2000, 5:00 AM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 35 counties

Atchison County, KS, Brown County, KS, Doniphan County, KS, Douglas County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Andrew County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Pettis County, MO, Platte County, MO, Ray County, MO, Saline County, MO

The radar

The Topeka radar (KTWX), 83 km from the middle of the area, began a volume at 05:00 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

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

Issued	Product	Office	Counties	Lasted
May 12, 12:18 AM CDT	Severe Thunderstorm Warning	EAX	Atchison	42 min
May 12, 12:36 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	39 min
May 12, 12:39 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton	51 min
May 12, 12:43 AM CDT	Tornado Warning	EAX	Atchison, Leavenworth	62 min
May 12, 12:43 AM CDT	Tornado Warning	EAX	Buchanan	62 min
May 12, 1:02 AM CDT	Severe Thunderstorm Warning	TOP	Brown	18 min
May 12, 1:04 AM CDT	Severe Thunderstorm Warning	EAX	Ray	41 min
May 12, 1:23 AM CDT	Severe Thunderstorm Warning	EAX	Doniphan	52 min
May 12, 1:45 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan	60 min

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 5.0 hours before the alert went out and 51 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: 4491 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1450 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 3.3
Supercell composite: 30.9

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 7:00 PM CDT	Severe Thunderstorm Watch	SPC	Atchison, Brown, Doniphan, Douglas, Franklin, Geary and 9 more	5 hr
May 12, 2:00 AM CDT	Severe Thunderstorm Watch	SPC	Atchison, Gentry, Harrison, Holt, Mercer, Nodaway and 3 more	5 hr
May 12, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	Carter, Christian, Crawford, Dent, Douglas, Franklin and 26 more	6 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2000 Severe Thunderstorm Watches in Missouri, 2000 Every severe thunderstorm watch in 2000

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.