Alert archive / Kansas / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 171, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jul 12, 2023, 7:35 PM CDT for Anderson County, Coffey County, Kansas. It was in force for 25 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, 7:35 PM CDT (00:35 UTC)
- Expired
- Jul 12, 2023, 8:00 PM CDT
- In force
- 25 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Anderson County, KS, Coffey County, KS
The radar
The Topeka radar (KTWX), 106 km from the middle of the area, began a volume at 00:38 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, 0.6 hours before the alert went out and 87 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.
- 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
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.
In the hours before
Special weather statement, Jul 12, 7:17 PM CDT, 18 minutes before
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</html>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, 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, 9:12 PM CDT | Severe Thunderstorm Warning | TOP | Anderson | 33 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, 2023Every 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.