Wind of 58 miles per hour or greater causing widespread or severe damage to trees, infrastructure or property.
Severe winds not related to tornadoes are usually referred to as “straight line winds.”
A straight line wind storm that affects an area larger than 240 square miles is known as a derecho. Straight line winds can be as strong as a tornado and can do just as much damage.
Straight line winds most often (but not always) occur with severe thunderstorms and might be called downbursts, microbursts or macrobursts.
Mobile and manufactured homes are particularly susceptible to wind damage. The Lansing School District uses manufactured (portable) outbuildings as classrooms at several of their schools. Lansing has three mobile home parks, none of which have community tornado shelters. See Tornado for more information on wind vulnerabilities.