Tornado watches in several counties expire

INDIANAPOLIS (WISH) — UPDATE 4:15 a.m.: All tornado watches have expired.

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UPDATE 9:45 p.m.: Duke Energy reports 1,169 customers are without service in Tippecanoe County.

A tornado watch is in effect for the northern third of Indiana, including many of the counties in our WISH-TV viewing area. This includes towns of Lafayette, Logansport, Monticello and Peru.

The watch will remain in effect until 3 a.m. A tornado watch means conditions are favorable for the development of tornadoes.

Strong storms have developed in Iowa and Illinois this evening and will continue moving east into Indiana. Those storms have had a history of producing tornadoes and damaging winds.

Tornado warnings have been issued in Illinois and Iowa with many of the storms. A tornado warning means a tornado has been detected by radar or spotted by the public.

The storms are expected to arrive in Indiana after midnight, and may linger into early Tuesday morning. Some weakening of the storms is expected as they move east, but may still be capable of producing severe weather.y.