Undated (KROC-AM News) - Sunny skies are forecast this weekend as thousands of motorcyclists hit the road for the annual Fall Flood Run.

The Minnesota Department of Public Safety estimates 30,000 motorcyclists will be cruising highways along the Mississippi and St. Croix River valleys between Winona and the Twin Cities on Saturday. The State Patrol and local law enforcement agencies have extra patrols planned, but officials are also urging all motorists to use extra caution in hopes of averting tragedies.

51 motorcyclists have already been killed this year in crashes throughout Minnesota, which is 5 above the total from all of last year.

The Flood Run got its start in 1965 when a dozen motorcyclists rode from the Twin Cities to Winona to help with sandbagging during that year’s devastating flood along the Mississippi, and now serves as a fundraiser benefiting the Gillette Children’s hospital.