Alert archive / Missouri / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 14, NWS Kansas City, MO

April 4, 20106 counties in Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 4, 2010, 6:30 PM CDT for 6 counties in Missouri. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 4, 2010, 6:30 PM CDT (23:30 UTC)
Expired: Apr 4, 2010, 7:00 PM CDT
In force: 30 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Carroll County, MO, Chariton County, MO, Howard County, MO, Macon County, MO, Randolph County, MO, Saline County, MO

The radar

The Pleasant Hill radar (KEAX), 135 km from the middle of the area, began a volume at 23:33 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 4, 3:34 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.5 hours before the alert went out and 240 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1883 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Kansas City, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 4, 6:19 PM CDT, 11 minutes earlier.

Area forecast discussion, Apr 4, 6:19 PM CDT, 11 minutes before

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Hazardous weather outlook, Apr 4, 4:55 PM CDT, 1 hour 35 minutes before

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In the hours before

Local storm report, Apr 4, 6:08 PM CDT, 22 minutes before

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Local storm report, Apr 4, 6:09 PM CDT, 21 minutes before

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Local storm report, Apr 4, 6:10 PM CDT, 20 minutes before

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Local storm report, Apr 4, 6:12 PM CDT, 18 minutes before

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Local storm report, Apr 4, 6:13 PM CDT, 17 minutes before

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Local storm report, Apr 4, 6:26 PM CDT, 4 minutes before

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The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 4, 4:00 PM CDT	Special Weather Statement	EAX	Platte	30 min
Apr 4, 4:27 PM CDT	Special Weather Statement	EAX	Clinton	33 min
Apr 4, 4:30 PM CDT	Special Weather Statement	EAX	Platte	30 min
Apr 4, 4:35 PM CDT	Special Weather Statement	EAX	Clay	25 min
Apr 4, 4:53 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clay, Clinton, Ray	37 min
Apr 4, 4:57 PM CDT	Special Weather Statement	EAX	Schuyler	33 min
Apr 4, 5:25 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Ray	35 min
Apr 4, 5:53 PM CDT	Special Weather Statement	EAX	Linn, Macon	37 min
Apr 4, 5:57 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Saline	33 min
Apr 4, 6:42 PM CDT	Special Weather Statement	EAX	Macon	33 min
Apr 4, 3:55 PM CDT	Special Weather Statement	EAX	Leavenworth, Wyandotte	35 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2010 Every severe thunderstorm warning in 2010

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.