An outbreak of severe thunderstorms impacted the region on the last day of May. Damaging winds, large hail, and a tornado were observed in this outbreak. Scattered thunderstorm development began by mid to late afternoon, with coverage increasing further into the evening hours. Scattered thunderstorms developed along an outflow boundary across southeast Missouri and the lower Ohio Valley. Surface dewpoints near the boundary were in the lower 70s, which contributed to moderately strong instability. A subtle shortwave trough across the mid Mississippi Valley and lower Missouri Valley provided large-scale ascent for the storms. Mid-level winds around 50 knots located just ahead of the shortwave helped to create moderate to strong deep-layer wind shear, favorable for a few supercells.

Funnel Cloud in CARTER, MISSOURI
From 31-MAY-18 16:33:00 to 31-MAY-18 16:33:00 (CST-6)
Location: ELLSINORE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The funnel cloud was reported by law enforcement northwest of town.

Funnel Cloud in CARTER, MISSOURI
From 31-MAY-18 16:42:00 to 31-MAY-18 16:42:00 (CST-6)
Location: HUNTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The funnel cloud was reported by a trained spotter.

Hail in CARTER, MISSOURI
From 31-MAY-18 16:11:00 to 31-MAY-18 16:11:00 (CST-6)
Location: VAN BUREN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CARTER, MISSOURI
From 31-MAY-18 16:23:00 to 31-MAY-18 16:23:00 (CST-6)
Location: FREMONT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The hail was reported near the intersection of U.S. Highway 60 and Highway Y.

Hail in WAYNE, MISSOURI
From 31-MAY-18 20:31:00 to 31-MAY-18 20:31:00 (CST-6)
Location: WILLIAMSVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BUTLER, MISSOURI
From 31-MAY-18 20:37:00 to 31-MAY-18 20:37:00 (CST-6)
Location: HENDRICKSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in CAPE GIRARDEAU, MISSOURI
From 31-MAY-18 18:40:00 to 31-MAY-18 18:40:00 (CST-6)
Location: FRUITLAND
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

This funnel cloud touched down several minutes later in the far eastern part of the county.

Tornado in CAPE GIRARDEAU, MISSOURI
From 31-MAY-18 18:44:00 to 31-MAY-18 18:49:00 (CST-6)
Location: ORIOLE
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Peak winds were estimated near 90 mph. The tornado touched down on Highway V near County Road 607, then moved east across forested and hilly terrain. The tornado lifted as it crossed Highway 177 at the Trail of Tears State Park. Dozens of trees, some large, were broken or uprooted. Several power poles were snapped from fallen trees. The tornado was sighted by numerous people, and video was taken by at least one individual. The parent storm produced two small tornadoes on the other side of the Mississippi River near Wolf Lake, Illinois within the next 10 minutes.

Thunderstorm Wind in CAPE GIRARDEAU, MISSOURI
From 31-MAY-18 20:22:00 to 31-MAY-18 20:22:00 (CST-6)
Location: RANDLES
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

In the southwest corner of Cape Girardeau County, trees and power lines were down along County Road 274.

Thunderstorm Wind in SCOTT, MISSOURI
From 31-MAY-18 20:40:00 to 31-MAY-18 20:50:00 (CST-6)
Location: BENTON
Magnitude: 56.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Public

Trees were down in Benton, causing power outages. Two miles north of Blodgett, a tree was blown over the road on Highway H near County Road 506.

Thunderstorm Wind in WAYNE, MISSOURI
From 31-MAY-18 20:51:00 to 31-MAY-18 20:51:00 (CST-6)
Location: WAPPAPELLO
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Insurance Company

Tree and vehicle damage was reported near the intersection of Highways T and RA.

Thunderstorm Wind in SCOTT, MISSOURI
From 31-MAY-18 21:15:00 to 31-MAY-18 21:15:00 (CST-6)
Location: SIKESTON
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Trees and power lines were down in the city. A tree was blown onto a house. Numerous tree limbs were down. Some power outages occurred.

Thunderstorm Wind in MISSISSIPPI, MISSOURI
From 31-MAY-18 21:32:00 to 31-MAY-18 21:32:00 (CST-6)
Location: EAST PRAIRIE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous tree limbs were down, including some that were two to three inches in diameter.