National Weather Service already started on storm surveys across four states

The National Weather Service office in Paducah has already started what will be a busy week of surveying storm damage from Friday night and early Saturday morning.

Initial targets for surveys include six tracks in Missouri, four in Illinois (Perry, Franklin, Johnson counties), one in McCracken County, Kentucky, and one in Indiana.

By visually inspecting and measuring the scope of damage, meteorologists can pinpoint the origin, intensity, length and width of each tornado, or determine if it was actually straight-line winds that occurred.

It will probably take a week or more to survey all of the affected areas. 

Tornado survey results will be posted on their website www.weather.gov/paducah. Additional surveys for locations not shown on the map may be needed as additional damage reports are received.