Alert archive / Kansas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 172, NWS Topeka, KS

July 12, 2023Anderson County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 12, 2023, 9:12 PM CDT for Anderson County, Kansas. It was in force for 33 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: Jul 12, 2023, 9:12 PM CDT (02:12 UTC)
Expired: Jul 12, 2023, 9:45 PM CDT
In force: 33 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Anderson County, KS

The radar

The Pleasant Hill radar (KEAX), 111 km from the middle of the area, began a volume at 02:15 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 12, 8:20 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 2.2 hours before the alert went out and 92 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: 2307 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1377 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 189 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 11.8

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.

Hazardous weather outlook, Jul 12, 8:15 PM CDT, 57 minutes before

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In the hours before

Special weather statement, Jul 12, 7:17 PM CDT, 1 hour 55 minutes before

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Special weather statement, Jul 12, 8:00 PM CDT, 1 hour 12 minutes before

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Special weather statement, Jul 12, 8:58 PM CDT, 14 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 7:17 PM CDT	Special Weather Statement	TOP	Coffey	28 min
Jul 12, 7:35 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	25 min
Jul 12, 8:00 PM CDT	Special Weather Statement	TOP	Anderson	30 min
Jul 12, 8:58 PM CDT	Special Weather Statement	TOP	Anderson	32 min
Jul 12, 9:45 PM CDT	Severe Thunderstorm Warning	TOP	Anderson	15 min
Jul 12, 10:09 PM CDT	Severe Thunderstorm Warning	TOP	Anderson	21 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2023 Every severe thunderstorm warning in 2023

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.