Alert archive / Kansas / Special Weather Statements in 2011

Special Weather Statement, NWS Topeka, KS

June 10, 2011Riley County, Kansas

NWS Topeka, KS issued this special weather statement at Jun 10, 2011, 5:21 AM CDT for Riley County, Kansas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 10, 2011, 5:21 AM CDT (10:21 UTC)
Expired: Jun 10, 2011, 5:45 AM CDT
In force: 24 min
Issued by: NWS Topeka, KS

County Riley County, KS

The radar

The Topeka radar (KTWX), 63 km from the middle of the area, began a volume at 10:24 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

Topeka, KS (KTOP), launched 00:00Z, 10.4 hours before the alert went out and 103 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: 2854 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1456 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 7.1

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 10, 4:14 AM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jun 10, 4:14 AM CDT, 1 hour 7 minutes before

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Hazardous weather outlook, Jun 10, 5:11 AM CDT, 10 minutes before

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In the hours before

Local storm report, Jun 9, 11:32 PM CDT, 5 hours 49 minutes before

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Local storm report, Jun 9, 11:39 PM CDT, 5 hours 42 minutes before

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Local storm report, Jun 10, 12:11 AM CDT, 5 hours 10 minutes before

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Special weather statement, Jun 10, 3:58 AM CDT, 1 hour 23 minutes before

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Special weather statement, Jun 10, 4:49 AM CDT, 32 minutes before

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Special weather statement, Jun 10, 5:21 AM CDT, 0 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
Jun 9, 7:30 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary, Morris	26 min
Jun 9, 7:41 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Pottawatomie, Riley	34 min
Jun 9, 8:06 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Nemaha, Pottawatomie	39 min
Jun 9, 8:15 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha, Pottawatomie, Riley	45 min
Jun 9, 8:22 PM CDT	Special Weather Statement	TOP	Shawnee	23 min
Jun 9, 8:25 PM CDT	Special Weather Statement	TOP	Coffey	35 min
Jun 9, 8:33 PM CDT	Special Weather Statement	TOP	Coffey	27 min
Jun 9, 8:42 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	18 min
Jun 9, 8:44 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Jackson, Nemaha	61 min
Jun 9, 8:49 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey, Lyon	41 min
Jun 9, 8:58 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	32 min
Jun 9, 9:33 PM CDT	Special Weather Statement	TOP	Anderson, Coffey	27 min
Jun 9, 10:20 PM CDT	High Wind Warning	TOP	Anderson, Coffey, Douglas, Franklin, Lyon, Osage	3 hr
Jun 10, 3:58 AM CDT	Special Weather Statement	TOP	Dickinson, Geary	32 min
Jun 10, 4:49 AM CDT	Special Weather Statement	TOP	Clay	26 min
Jun 10, 5:46 AM CDT	Special Weather Statement	TOP	Pottawatomie	29 min
Jun 10, 6:39 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	51 min

Nearby

Special Weather Statements in Kansas, 2011 Every special weather statement in 2011

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.