Alert archive / Missouri / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 167, NWS St. Louis, MO

June 10, 20264 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 10, 2026, 3:46 PM CDT for 4 counties in Missouri. It was in force for 44 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: Jun 10, 2026, 3:46 PM CDT (20:46 UTC)
Expired: Jun 10, 2026, 4:30 PM CDT
In force: 44 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Marion County, MO, Monroe County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 144 km from the middle of the area, began a volume at 20:49 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

Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 279 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: 1372 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: -58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

NWS St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 2:53 PM CDT, 53 minutes earlier.

Area forecast discussion, Jun 10, 2:53 PM CDT, 53 minutes before

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In the hours before

Local storm report, Jun 10, 2:00 PM CDT, 1 hour 46 minutes before

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Local storm report, Jun 10, 2:01 PM CDT, 1 hour 45 minutes before

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Local storm report, Jun 10, 2:03 PM CDT, 1 hour 43 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
203 PM CDT Wed Jun 10 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0145 PM     Flash Flood      1 NE Clarence           39.76N 92.24W
06/10/2026                   Shelby             MO   Emergency Mngr

            CR 305 flooded with 2ft of water.

&&

MRB

Local storm report, Jun 10, 2:25 PM CDT, 1 hour 21 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
225 PM CDT Wed Jun 10 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0225 PM     Flash Flood      3 E Clarence            39.74N 92.20W
06/10/2026                   Shelby             MO   Emergency Mngr

            The westbound lanes of US-36 are flooded
            with 2ft of water.

&&

MRB

Local storm report, Jun 10, 2:56 PM CDT, 50 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
256 PM CDT Wed Jun 10 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0231 PM     Flash Flood      Clarence                39.74N 92.26W
06/10/2026                   Shelby             MO   Public

            Report from mPING: Street/road flooding;
            Street/road closed.

&&

MRB

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 10:44 AM CDT	Flood Watch	LSX	Knox, Lewis, Marion, Shelby	16 hr
Jun 10, 12:24 PM CDT	Areal Flood Advisory	LSX	Knox, Lewis, Shelby	53 min
Jun 10, 1:17 PM CDT	Flash Flood Warning	LSX	Shelby	3 hr
Jun 10, 6:42 PM CDT	Tornado Warning	LSX	Knox	49 min
Jun 10, 4:58 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	18 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2026 Every severe thunderstorm warning in 2026

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.