Cannon Falls, MN

Sirens in Cannon Falls are tested on the first Wednesday of every month:

-At 1PM in Alert and the tornado warning voice messages

-At 6:30PM in Hi-Lo and the flood evacuation messages

Both signals are preceded and followed by up to 3 test announcements. The flood signal is used for the Byllesby Dam about a mile upstream the Cannon River from the city of Cannon Falls. The City has a quite detailed online map and instructions for residents on evacuations in case of a dam failure. Much of the City sits well below the water level of Lake Byllesby, with the river banks near downtown sitting about 60 feet below, meaning that in a worst case scenario almost the entire city would have to be evacuated.

Evacuation plan for areas downstream of the Byllesby Dam (link)

Federal Signal Modulator 8032B - Located at the Byllesby Dam (north shore). 4222-N13 (last 2 may be a 3). Photos taken 7/3/24, copyright Christopher Aylward.

Federal Signal Modulator 6024 - 3734 N11. Located at 920 4th St. Photos taken 7/3/24, copyright Christopher Aylward.

Federal Signal Modulator 6024 - Located at 6th St & 9th St. Photos taken 4/3/24, copyright Christopher Aylward.

Federal Signal Modulator 6024 & STH-10 - STH-10 is inactive. Located at 730 Cannon Ct behind the high school. Photos taken 7/3/24, copyright Christopher Aylward.

Federal Signal Modulator 6024 - Located on a hill near County 17 Blvd & MN-20. Siren is on a private driveway. Photos taken 7/3/24, copyright Christopher Aylward.