EF0 tornado in Scott County, Minnesota

An EFO tornado touched down near Highway 13 and Connelly Parkway and moved east for 2.1 miles. There was sporadic damage along this path with maximum winds of 85 mph. Most of the damage was due to trees falling on houses and vehicles. The worst damage occurred near the intersection of Connelly Parkway and Dakota Avenue South where roof damage occurred at the Savage Public Works and Light. The city of Savage transformer station also had damage near this intersection, and most of the street lights and signs were damage.

A line of thunderstorms that originally developed across South Dakota Thursday evening, September 16th, quickly moved eastward over southern Minnesota after midnight. A series of surges along this line caused localized severe wind gusts that produced numerous downed trees and power lines across southern Minnesota. One of the storms produced an EF0 tornado south of Henderson in far southeast Sibley County.

As this line moved across the southern Metro of the Twin Cities, three tornadoes briefly spun-up leading to multiple power outages, plus major damage to Savage public works building and a large transformer for the city of Savage. In addition, the power outages caused local schools to close temporarily Friday morning. Another area of tornado damage occurred in Apple Valley and Burnsville. Most of this damage was due to trees falling on houses and vehicles.

A 64 mph wind gust was measured by the ASOS at Minneapolis-St. Paul International Airport. At MSP Airport, with the strong winds and possibly brakes not being applied and/or improper chocking, two Sun Country aircraft slid into each other and into jetways H3 and H4, causing fairly significant damage.

Outside the tornadic activity, several sources of private and public weather sensors measured wind speeds of 40 to 55 mph across a wide swath of southern Minnesota. These winds coupled with heavy rainfall, caused numerous downed small trees and large branches across a 25 to 50 mile wide area from Redwood Falls, to St James, then northeast to New Ulm, Shakopee, St. Paul, and into parts of west central Wisconsin.

In addition, near Mankato, MN around 0730 UTC, a 4-year old girl was killed when a tree branch fell on the tent where she and her family were camping. There were approximately 80,000 people without power during the peak of the severity that moved through the metro area.