* WHAT. Flooding caused by excessive rainfall is possible. * WHERE. Portions of central and west central Michigan, including the following counties, in central Michigan, Clare, Gratiot, Isabella, Mecosta, Montcalm and Osceola. In west central Michigan, Lake, Mason, Muskegon, Newaygo and Oceana. * WHEN. From noon EDT today through late tonight. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - http://www.weather.gov/safety/flood

* WHAT. High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE. Ottawa, Allegan and Van Buren counties. * WHEN. From 8 PM EDT this evening through Sunday morning. * IMPACTS. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

* WHAT. High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE. Muskegon county. * WHEN. From 8 PM EDT this evening through Sunday morning. * IMPACTS. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

* WHAT. West winds 10 to 15 knots with gusts up to 25 knots and waves 3 to 5 feet expected. * WHERE. Grand Haven to Whitehall MI. * WHEN. From 8 PM this evening to noon EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 knots with gusts up to 25 knots and waves 2 to 5 feet expected. * WHERE. St Joseph to Grand Haven. * WHEN. From 8 PM this evening to noon EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values up to 96. * WHERE. Calhoun, Eaton, Ingham, Jackson, Allegan, Barry, Kalamazoo, Kent, Ottawa, and Van Buren Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. Portions of central and west central Michigan, including the following counties, in central Michigan, Clare, Gratiot, Isabella, Mecosta, Montcalm and Osceola. In west central Michigan, Lake, Mason, Muskegon, Newaygo and Oceana. * WHEN. Through late tonight. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - Several rounds of heavy rain are possible during the watch period. Rainfall rates may top an inch per hour at times, which may lead to flooding, especially if the storms repeat over the same area. - http://www.weather.gov/safety/flood

* WHAT. Heat index values up to 92. * WHERE. Calhoun, Eaton, Ingham, Jackson, Allegan, Barry, Kalamazoo, Kent, Ottawa, and Van Buren Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Dangerously hot conditions with heat index values into the upper 90s. * WHERE. Portions of northern Indiana and southwest Michigan. * WHEN. Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS. Heat stress increases with the number of consecutive hot days. The effects of heat are most impactful for more vulnerable urban populations.

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. Portions of central and west central Michigan, including the following counties, in central Michigan, Clare, Gratiot, Isabella, Mecosta, Montcalm and Osceola. In west central Michigan, Lake, Mason, Muskegon, Newaygo and Oceana. * WHEN. Through late tonight. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - Showers and thunderstorms with locally heavy rain could result in flooding for parts of the watch area into tonight. Rainfall rates in the strongest storms could top an inch per hour. - http://www.weather.gov/safety/flood

* WHAT. West winds 10 to 20 knots with gusts up to 25 knots and waves 2 to 5 feet expected. * WHERE. St Joseph to Whitehall. * WHEN. From 8 PM this evening to noon EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE. Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN. From 8 PM EDT this evening through Sunday morning. * IMPACTS. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.