Alert archive / Kansas / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 206, NWS Topeka, KS

September 1, 2010Republic County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Sep 1, 2010, 9:49 PM CDT for Republic County, Kansas. It was in force for 41 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: Sep 1, 2010, 9:49 PM CDT (02:49 UTC)
Expired: Sep 1, 2010, 10:30 PM CDT
In force: 41 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Republic County, KS

The radar

The Grand Island radar (KUEX), 87 km from the middle of the area, began a volume at 02:50 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 nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.8 hours before the alert went out and 198 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: 1998 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 846 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

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 Topeka, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 6:38 PM CDT, 3 hours 11 minutes earlier.

Area forecast discussion, Sep 1, 6:38 PM CDT, 3 hours 11 minutes before

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Hazardous weather outlook, Sep 1, 3:46 PM CDT, 6 hours 3 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 1, 10:32 PM CDT	Special Weather Statement	TOP	Republic	43 min
Sep 1, 11:14 PM CDT	Special Weather Statement	TOP	Clay	31 min
Sep 1, 11:46 PM CDT	Special Weather Statement	TOP	Clay	29 min
Sep 2, 12:15 AM CDT	Special Weather Statement	TOP	Clay	30 min
Sep 2, 12:31 AM CDT	Special Weather Statement	TOP	Riley	44 min
Sep 2, 12:55 AM CDT	Special Weather Statement	TOP	Geary	20 min
Sep 2, 1:25 AM CDT	Special Weather Statement	TOP	Pottawatomie	20 min
Sep 2, 1:40 AM CDT	Special Weather Statement	TOP	Shawnee	35 min
Sep 2, 2:31 AM CDT	Special Weather Statement	TOP	Shawnee	29 min
Sep 2, 4:06 AM CDT	Areal Flood Advisory	TOP	Jackson, Jefferson, Shawnee	115 min
Sep 2, 1:51 PM CDT	Special Weather Statement	TOP	Ottawa	24 min
Sep 2, 2:18 PM CDT	Special Weather Statement	TOP	Ottawa	27 min
Sep 2, 3:39 PM CDT	Special Weather Statement	TOP	Morris, Wabaunsee	36 min
Sep 2, 3:46 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Morris, Wabaunsee	29 min
Sep 2, 4:00 PM CDT	Severe Thunderstorm Warning	TOP	Osage, Shawnee	45 min
Sep 2, 4:17 PM CDT	Severe Thunderstorm Warning	TOP	Osage	28 min
Sep 2, 4:35 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin, Osage	40 min

Nearby

Severe Thunderstorm Warnings in Kansas, 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.