01/08/2007 Council Packet - Laserfiche WebLink

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• Anoka County Multi - Jurisdictional All Hazards Mitigation Plan Coon Rapids has an expectation of a tornado every year. The most recent significant event: 09/21/2005, possible F -2 tornado struck east edge of city and into Blaine. Another significant tornado struck on 07/18/1986 on the east side of the city, near Egret and University Avenue border area from Mississippi River to Evergreen Boulevard, near border with Fridley. Roofs taken off, trees down, hail damaged, homes and businesses destroyed or uninhabitable. The loss impact of future occurrence: potential to be devastating. In 1965, a tornado devastated the city of Fridley, Over 425 homes were destroyed, and 1224 homes were extensively damaged resulting in millions of dollars in losses. The likelihood of future occurrence is considered moderate, with the future impact high. Lino Lakes experienced a Tornado in 1998. Five homes were destroyed; many more homes had roof damage, shingles missing, and siding fascia blown away. Many large trees were destroyed and debris and trees blocked roads. Many homes were without electricity. The likelihood of future occurrence is considered moderate and future impact moderate. Tornado Deaths 1950 -2002 Source Nat rt..nate Oat. C6Ate, Oak Grove experienced Tornados and straight -line winds in 1939, 1965 and 1997. The 1939 tornado destroyed two homes and severely damaged several others. In 1965 there was minimal damage. In1997 many, many trees down with some residential damage. The likelihood of occurrence is that a possible tornado or FO winds will occur in the City of Oak Grove every decade with the impact moderate. A tornado touched down in Spring Lake Park on May 6, 1965: Two people were killed, hundreds were injured and one -third of the property in Spring Lake Park was destroyed. School Districts in Spring Lake Park and Fridley had estimated damage of $10 Million, public utilities were seriously damaged, and 16,000 phones were out of service. Electric power and natural gas service was interrupted for as long as a week. Spring Lake Park had 30% of its residencies impacted. 149 homes totally destroyed and 147 homes were damaged. Neighboring community medical facilities were taxed to maximum capacity. The likelihood of future occurrence is moderate with the impact high. There have been 25 tornado events that have impacted Anoka County and participating jurisdictions since 1951. In some cases the same tornado may have impacted multiple jurisdictions and was reported more than once. These tornado events resulted in 84 fatalities and 672 injuries. The reported structure damage was $104,465,290 and content damage was estimated to be $18,679,500. Although tornadoes have affected Anoka County infrequently in the past, probability of damage from this hazard in the future is likely. The entire county is at equal risk of future occurrences.