A weak shortwave moving across southern Minnesota and Wisconsin brought thunderstorms to the Highway 20 corridor of northwest Illinois. These thunderstorms quickly become severe and produce hail to the size of quarters and damaging winds in Stephenson and Jo Daviess Counties. Rainfall amounts of 1 to 2 inches were reported across this area.

Hail in JO DAVIESS, ILLINOIS
From 12-APR-14 07:39:00 to 12-APR-14 07:39:00 (CST-6)
Location: AIKEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A public report of nickel to quarter size hail completely covering the ground.

Hail in JO DAVIESS, ILLINOIS
From 12-APR-14 07:45:00 to 12-APR-14 07:45:00 (CST-6)
Location: GALENA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A public report of hail slightly larger than a quarter.

Hail in JO DAVIESS, ILLINOIS
From 12-APR-14 08:06:00 to 12-APR-14 08:06:00 (CST-6)
Location: WARREN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported hail that was the size of a nickel or slight larger and covering the ground. The hail lasted about 2 minutes.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 12-APR-14 08:26:00 to 12-APR-14 08:26:00 (CST-6)
Location: FREEPORT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported branches of 1 to 2 inches in diameter and that flag pole was down.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 12-APR-14 08:35:00 to 12-APR-14 08:35:00 (CST-6)
Location: FREEPORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 4 inch diameter tree ripped off at the base.

Hail in STEPHENSON, ILLINOIS
From 12-APR-14 08:15:00 to 12-APR-14 08:15:00 (CST-6)
Location: ELEROY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 12-APR-14 08:25:00 to 12-APR-14 08:25:00 (CST-6)
Location: FREEPORT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported very strong winds for 2 to 3 minutes. As a result, large tree branches broke off and landed on the house. Garbage cans and down spout were blown around. This report was received via E-spotter.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 12-APR-14 08:35:00 to 12-APR-14 08:35:00 (CST-6)
Location: WINNESHIEK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported trees down between Freeport and Dakota. Shingles were also off the roof of a church.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 12-APR-14 08:30:00 to 12-APR-14 08:30:00 (CST-6)
Location: FREEPORT
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Severe straight-line winds (likely from the RFD of the storm) caused a swath of damage mainly along Lamm Road on the southeast side of Freeport from around 930 am to 945 am.  Numerous trees were snapped, outbuildings damaged, and power lines downed.  Significant  structural damage also occurred.  Specifically, a large metal building was destroyed at Walnut and Lamm Rd., and a house was completely unroofed at Springfield and Lamm Rd.

Hail in STEPHENSON, ILLINOIS
From 12-APR-14 08:28:00 to 12-APR-14 08:28:00 (CST-6)
Location: FREEPORT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported pea to dime sized hail.

Hail in STEPHENSON, ILLINOIS
From 12-APR-14 08:28:00 to 12-APR-14 08:28:00 (CST-6)
Location: FREEPORT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STEPHENSON, ILLINOIS
From 12-APR-14 08:30:00 to 12-APR-14 08:30:00 (CST-6)
Location: FREEPORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The report was relayed by the National Weather Service in Chicago.

Hail in STEPHENSON, ILLINOIS
From 12-APR-14 08:35:00 to 12-APR-14 08:35:00 (CST-6)
Location: WINNESHIEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STEPHENSON, ILLINOIS
From 12-APR-14 08:38:00 to 12-APR-14 08:38:00 (CST-6)
Location: WINNESHIEK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter dime to quarter sized hail covering the ground on the U.S. 20 Bypass with some covers in the ditches. The hail lasted for 10 minutes.

Thunderstorm Wind in STEPHENSON, ILLINOIS
From 12-APR-14 08:25:00 to 12-APR-14 08:25:00 (CST-6)
Location: FREEPORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported winds moving a full trash dumpster.