Alert archive / Kansas / Special Weather Statements in 2017

Special Weather Statement, NWS Topeka, KS

October 14, 2017Nemaha County, Kansas

NWS Topeka, KS issued this special weather statement at Oct 14, 2017, 7:34 AM CDT for Nemaha County, Kansas. It was in force for 26 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: Oct 14, 2017, 7:34 AM CDT (12:34 UTC)
Expired: Oct 14, 2017, 8:00 AM CDT
In force: 26 min
Issued by: NWS Topeka, KS

County Nemaha County, KS

The radar

The Topeka radar (KTWX), 98 km from the middle of the area, began a volume at 12:37 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 (KFOE), launched 12:00Z, 0.6 hours before the alert went out and 101 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: 448 J/kg
Mixed-layer CIN: -178 J/kg
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 324 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted.

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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 Oct 14, 6:21 AM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Oct 14, 6:21 AM CDT, 1 hour 13 minutes before

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Hazardous weather outlook, Oct 14, 5:09 AM CDT, 2 hours 25 minutes before

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In the hours before

Special weather statement, Oct 14, 6:46 AM CDT, 48 minutes before

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Special weather statement, Oct 14, 7:34 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
Oct 14, 6:46 AM CDT	Special Weather Statement	TOP	Clay	29 min
Oct 14, 1:34 PM CDT	Special Weather Statement	TOP	Morris	26 min
Oct 14, 2:55 PM CDT	Special Weather Statement	TOP	Lyon	35 min
Oct 14, 4:16 PM CDT	Severe Thunderstorm Warning	TOP	Lyon	44 min
Oct 14, 4:30 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Riley	45 min
Oct 14, 4:45 PM CDT	Severe Thunderstorm Warning	TOP	Coffey, Osage	45 min
Oct 14, 4:56 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Wabaunsee	36 min
Oct 14, 5:07 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Franklin	38 min
Oct 14, 5:28 PM CDT	Special Weather Statement	TOP	Jackson	32 min
Oct 14, 5:42 PM CDT	Severe Thunderstorm Warning	TOP	Coffey, Lyon	63 min
Oct 14, 6:23 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Franklin	52 min
Oct 14, 6:37 PM CDT	Special Weather Statement	TOP	Wabaunsee	23 min
Oct 14, 6:44 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	48 min

Nearby

Special Weather Statements in Kansas, 2017 Every special weather statement in 2017

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.