Thunderstorms organized into line segments and isolated supercells as a cold front moved east from Missouri. The storms strengthened within a corridor of weak to moderate instability just ahead of the eastward-moving cold front. The combination of instability, moisture, and wind shear resulted in a few funnel clouds and/or tornadoes. The isolated tornadoes occurred in the region of strongest wind shear north of a line from Anna to Vienna. Scattered to numerous reports of damaging winds over 60 mph accompanied the storms, mainly north of a line from Anna to Vienna. Isolated large hail accompanied the strongest storm cells.

Hail in FRANKLIN, ILLINOIS
From 20-FEB-14 17:10:00 to 20-FEB-14 17:15:00 (CST-6)
Location: WEST FRANKFORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in SALINE, ILLINOIS
From 20-FEB-14 18:11:00 to 20-FEB-14 18:11:00 (CST-6)
Location: HARRISBURG
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A power pole was blown down.

Thunderstorm Wind in WHITE, ILLINOIS
From 20-FEB-14 17:52:00 to 20-FEB-14 17:52:00 (CST-6)
Location: BURNT PRAIRIE
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tractor-trailer rig was overturned along Interstate 64.

Thunderstorm Wind in WHITE, ILLINOIS
From 20-FEB-14 18:05:00 to 20-FEB-14 18:05:00 (CST-6)
Location: CALVIN
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A semi was overturned along Interstate 64.

Thunderstorm Wind in GALLATIN, ILLINOIS
From 20-FEB-14 18:25:00 to 20-FEB-14 18:25:00 (CST-6)
Location: EQUALITY
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

A carport was blown into a roadway.

Thunderstorm Wind in JACKSON, ILLINOIS
From 20-FEB-14 16:45:00 to 20-FEB-14 16:53:00 (CST-6)
Location: CARBONDALE
Magnitude: 52.00 MG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Trained Spotter

In Carbondale, a trained spotter measured a wind gust to 60 mph. Two six-foot sections of a fence were blown down. The awning on a second home detached from the building. Near the Carbondale Reservoir, tree limbs were blown down at scattered locations.

Hail in HAMILTON, ILLINOIS
From 20-FEB-14 17:35:00 to 20-FEB-14 17:35:00 (CST-6)
Location: MC LEANSBORO
Magnitude: 1.00 
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Social Media

Some homes on the south side of Mcleansboro had damage from wind-blown hail. Holes were poked in shutters and siding.

Thunderstorm Wind in WILLIAMSON, ILLINOIS
From 20-FEB-14 16:59:00 to 20-FEB-14 17:00:00 (CST-6)
Location: COLP
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power pole snapped in Herrin, and another pole snapped two miles north of Colp. Tree limbs were blown down along Highway 13 near Carterville.

Funnel Cloud in WILLIAMSON, ILLINOIS
From 20-FEB-14 17:16:00 to 20-FEB-14 17:16:00 (CST-6)
Location: JOHNSTON CITY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a funnel cloud just northeast of town.

Thunderstorm Wind in WHITE, ILLINOIS
From 20-FEB-14 18:30:00 to 20-FEB-14 18:30:00 (CST-6)
Location: CARMI
Magnitude: 51.00 MG
Property damage: 9.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous tree limbs were blown down. A flag pole was snapped. The peak wind gust was measured at 59 mph at the Carmi airport.

Hail in JACKSON, ILLINOIS
From 20-FEB-14 16:50:00 to 20-FEB-14 16:50:00 (CST-6)
Location: CARBONDALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WHITE, ILLINOIS
From 20-FEB-14 17:55:00 to 20-FEB-14 17:55:00 (CST-6)
Location: SPRINGERTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel Cloud in WABASH, ILLINOIS
From 20-FEB-14 18:17:00 to 20-FEB-14 18:17:00 (CST-6)
Location: BELLMONT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a funnel cloud heading toward Bellmont.

Funnel Cloud in WHITE, ILLINOIS
From 20-FEB-14 17:54:00 to 20-FEB-14 17:54:00 (CST-6)
Location: SPRINGERTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a funnel cloud heading toward Springerton.

Thunderstorm Wind in ALEXANDER, ILLINOIS
From 20-FEB-14 17:01:00 to 20-FEB-14 17:01:00 (CST-6)
Location: EAST CAPE GIRARDEAU
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A wind gust to 59 mph was measured by a weather station operated by the Illinois state Department of Transportation.

Tornado in JACKSON, ILLINOIS
From 20-FEB-14 16:40:00 to 20-FEB-14 16:41:00 (CST-6)
Location: ETHERTON
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Trees were snapped, and there was siding and soffit damage to a home. Tree tops were damaged along the path. Maximum winds were estimated near 95 mph. The damage area was in the Shawnee National Forest a few miles east of the Big Muddy River.

Thunderstorm Wind in JACKSON, ILLINOIS
From 20-FEB-14 17:20:00 to 20-FEB-14 17:33:00 (CST-6)
Location: MURPHYSBORO
Magnitude: 52.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Wind equipment at the automated observing site at the Carbondale airport measured a gust to 60 mph. In Murphysboro, a power pole was snapped, with lines laying across a home.