A line of thunderstorms intensified as it approached the Mississippi River and began to bow out toward the east. Numerous damaging wind events occurred in the southern tip of Illinois, along with an isolated tornado. Wind damage was much more isolated to the north. The storms increased in strength ahead of a small-scale 500 mb shortwave over western Missouri. A moderately strong southwest wind flow of moist and very unstable air fueled the storms. Mixed-layer capes around 3000 j/kg fed into the southern end of the line of storms. Precipitable water values were near 2 inches. Earlier in the day, a weakening line of storms moved southward across southern Illinois. This line of storms produced isolated wind damage in Wabash County. The outflow boundary from this early line of storms provided a focus for the eastward-moving line in the afternoon.

Thunderstorm Wind in WABASH, ILLINOIS
From 06-JUL-16 08:35:00 to 06-JUL-16 08:35:00 (CST-6)
Location: MT CARMEL
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Some trees were blown down, causing power outages.

Thunderstorm Wind in SALINE, ILLINOIS
From 06-JUL-16 13:02:00 to 06-JUL-16 13:02:00 (CST-6)
Location: MITCHELLSVILLE
Magnitude: 56.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down, causing power outages.

Thunderstorm Wind in PULASKI, ILLINOIS
From 06-JUL-16 12:15:00 to 06-JUL-16 12:15:00 (CST-6)
Location: PULASKI
Magnitude: 61.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree was down. Large limbs were blown down, including one that fell on a car. A trained spotter estimated wind gusts were near 70 mph.

Thunderstorm Wind in MASSAC, ILLINOIS
From 06-JUL-16 12:49:00 to 06-JUL-16 12:49:00 (CST-6)
Location: BROOKPORT
Magnitude: 65.00 EG
Property damage: 35.00K
Crop damage: 0.00K
Reported by: Newspaper

A mobile home was destroyed a few miles north of Brookport. The occupants escaped safely. Numerous trees were blown down east of Brookport, resulting in some impassable roads.

Thunderstorm Wind in JACKSON, ILLINOIS
From 06-JUL-16 12:15:00 to 06-JUL-16 12:15:00 (CST-6)
Location: MAKANDA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs about two to three inches in diameter were blown down.

Tornado in MASSAC, ILLINOIS
From 06-JUL-16 12:39:00 to 06-JUL-16 12:45:00 (CST-6)
Location: METROPOLIS
Tornado F-scale: EF1
Property damage: 350.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A funnel cloud crossed the Ohio River from Kentucky, then touched down on the southwest edge of Metropolis a few blocks from the Ohio River. The most significant damage occurred along a residential street next to the city's elementary school. The school had window and roofing damage. The primary school received more serious structural damage, likely in excess of 100,000 dollars. Nearby homes sustained roof damage, and numerous large trees were uprooted or snapped. Power poles were down. The city fire department responded to six fire calls and three medical calls directly related to the storm. A tree fell on a car, resulting in minor injuries to the driver. On the east edge of Metropolis, the tornado ripped the roof off of a maintenance shed. The tornado moved through Fort Massac State Park and exited the park on U.S. Highway 45 just west of Interstate 24. A motel just west of the interstate sustained minor to moderate roof damage. The path ended near the intersection of Highway 45 and I-24. A photograph was taken of the funnel cloud over Metropolis, but the bottom part of the funnel was behind trees and buildings. Widespread power outages lasted for at least 12 hours. Peak winds were estimated near 105 mph.