The National Weather Service in Wilmington has issued a * Flood Advisory for... Central Mercer County in west central Ohio... * Until 745 PM EDT. * At 611 PM EDT, radar indicated thunderstorms with heavy rain stationary over Mercer County including the city of Celina. 1.50 inches of rain was measured in 30 minutes by a rain gauge on the west side of Celina. * Minor flooding of low-lying and poorly drained streets, highways and underpasses will occur. In addition, farmland near creeks, streams and drainage ditches will experience minor flooding. Some locations that will experience minor flooding include... Celina, Coldwater, St. Henry, Mendon, Chickasaw, Montezuma, Neptune, Carthagena, Tama and Maria Stein.

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN AUGLAIZE AND CENTRAL MERCER COUNTIES UNTIL 645 PM EDT... At 601 PM EDT, radar indicated a strong thunderstorm over Celina, moving northeast at 5 mph. STORM HAZARDS INCLUDE... Winds to 45 mph... Frequent cloud-to-ground lightning... Very heavy rain... Locations impacted include... Celina, St. Marys, Coldwater, Rockford, New Knoxville, Moulton, Mendon, Buckland, Montezuma, Kossuth, Tama, Neptune, State Route 116 at State Route 197 and Bulkhead. Do not stay in the open or seek shelter under trees when lightning threatens. Move indoors when a thunderstorm approaches. Water will pond on roads and may quickly fill roadside ditches and small streams. Residents in these areas should remain alert. If this storm becomes stronger, then a warning may be needed. To report hazardous weather conditions, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.

...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM EDT THURSDAY... * WHAT...Heat index values around 100 expected. * WHERE...Portions of East Central and Southeast Indiana, Northeast and Northern Kentucky and Central, South Central, Southwest and West Central Ohio. * WHEN...From noon to 8 PM EDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur.

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN AUGLAIZE COUNTY UNTIL 700 PM EDT... At 632 PM EDT, radar indicated a strong thunderstorm near Wapakoneta. This storm was nearly stationary. STORM HAZARDS INCLUDE... Winds to 50 mph... Penny size hail... Frequent cloud-to-ground lightning... Very heavy rain... Locations impacted include... Wapakoneta, St. Marys, Fort Shawnee, Cridersville, New Knoxville, Moulton, Buckland, Fryburg, Kossuth, State Route 116 at State Route 197 and St. Johns. This includes I-75 in Ohio between mile markers 107 and 118. Do not stay in the open or seek shelter under trees when lightning threatens. Move indoors when a thunderstorm approaches. Water will pond on roads and may quickly fill roadside ditches and small streams. Residents in these areas should remain alert. If this storm becomes stronger, then a warning may be needed. To report hazardous weather conditions, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.