Alert archive / Kansas / Special Weather Statements in 2013

Special Weather Statement, NWS Topeka, KS

April 17, 2013Nemaha County, Kansas

NWS Topeka, KS issued this special weather statement at Apr 17, 2013, 6:13 AM CDT for Nemaha County, Kansas. It was in force for 32 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: Apr 17, 2013, 6:13 AM CDT (11:13 UTC)
Expired: Apr 17, 2013, 6:45 AM CDT
In force: 32 min
Issued by: NWS Topeka, KS

County Nemaha County, KS

The radar

The Topeka radar (KTWX), 79 km from the middle of the area, began a volume at 11:15 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, 11.2 hours before the alert went out and 83 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: 1169 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 521 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Apr 17, 2:23 AM CDT, 3 hours 50 minutes earlier.

Area forecast discussion, Apr 17, 2:23 AM CDT, 3 hours 50 minutes before

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Hazardous weather outlook, Apr 17, 5:57 AM CDT, 16 minutes before

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In the hours before

Special weather statement, Apr 17, 2:17 AM CDT, 3 hours 56 minutes before

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Special weather statement, Apr 17, 3:06 AM CDT, 3 hours 7 minutes before

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Special weather statement, Apr 17, 3:13 AM CDT, 3 hours before

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Special weather statement, Apr 17, 3:19 AM CDT, 2 hours 54 minutes before

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Special weather statement, Apr 17, 4:04 AM CDT, 2 hours 9 minutes before

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Special weather statement, Apr 17, 6:13 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
Apr 17, 1:06 AM CDT	Special Weather Statement	TOP	Pottawatomie	24 min
Apr 17, 1:46 AM CDT	Special Weather Statement	TOP	Nemaha	29 min
Apr 17, 2:17 AM CDT	Special Weather Statement	TOP	Nemaha	43 min
Apr 17, 3:06 AM CDT	Special Weather Statement	TOP	Cloud	24 min
Apr 17, 3:13 AM CDT	Special Weather Statement	TOP	Nemaha	47 min
Apr 17, 3:19 AM CDT	Special Weather Statement	TOP	Morris	41 min
Apr 17, 4:04 AM CDT	Special Weather Statement	TOP	Wabaunsee	41 min
Apr 17, 4:11 AM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary, Morris	49 min
Apr 17, 6:17 AM CDT	Special Weather Statement	TOP	Brown, Nemaha	28 min
Apr 17, 6:58 AM CDT	Special Weather Statement	TOP	Geary, Pottawatomie, Riley	32 min
Apr 17, 7:18 AM CDT	Special Weather Statement	TOP	Nemaha	27 min
Apr 17, 7:50 AM CDT	Special Weather Statement	TOP	Brown, Nemaha	40 min
Apr 17, 8:50 AM CDT	Special Weather Statement	TOP	Brown	25 min
Apr 17, 1:51 PM CDT	Flood Watch	TOP	Anderson, Brown, Coffey, Douglas, Franklin, Jackson and 8 more	14 hr
Apr 17, 2:01 PM CDT	Special Weather Statement	TOP	Washington	29 min
Apr 17, 2:26 PM CDT	Special Weather Statement	TOP	Clay, Ottawa	34 min
Apr 17, 3:00 PM CDT	Special Weather Statement	TOP	Cloud, Ottawa	45 min
Apr 17, 3:14 PM CDT	Special Weather Statement	TOP	Dickinson, Geary	46 min
Apr 17, 4:26 PM CDT	Special Weather Statement	TOP	Dickinson	34 min
Apr 17, 4:34 PM CDT	Special Weather Statement	TOP	Pottawatomie	26 min
Apr 17, 4:53 PM CDT	Areal Flood Advisory	TOP	Brown, Nemaha	112 min
Apr 17, 5:49 PM CDT	Flash Flood Warning	TOP	Jackson, Pottawatomie, Riley, Wabaunsee	4 hr
Apr 17, 6:50 PM CDT	Areal Flood Advisory	TOP	Brown, Jackson, Nemaha	115 min

Nearby

Special Weather Statements in Kansas, 2013 Every special weather statement in 2013

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.