The National Weather Service suspects that several tornadoes touched down overnight across the Miami Valley. Their investigators will be surveying damage in a variety of locations to determine how many occurred during this outbreak. Here is the latest statement from the NWS office in Wilmington:
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
913 AM EDT TUE MAY 28 2019
...STORM SURVEY TEAMS SCHEDULED TODAY FOR MERCER, MONTGOMERY,
PICKAWAY, AND GREENE COUNTIES IN OHIO...
THE NATIONAL WEATHER SERVICE OFFICE IN WILMINGTON OH HAS STORM SURVEY
TEAMS HEADED TO MERCER, MONTGOMERY, PICKAWAY, AND GREENE COUNTIES
IN OHIO. ADDITIONAL TEAMS WILL BE SENT AS ADDITIONAL RESOURCES
BECOME AVAILABLE. STORM SURVEYS WILL LIKELY TAKE SEVERAL DAYS. THE
SURVEYS ARE IN RELATION TO THE SEVERE THUNDERSTORMS THAT MOVED
THROUGH THE AREA ON MAY 27TH AND MAY 28TH 2019.
A FINAL ASSESSMENT INCLUDING RESULTS OF THE SURVEYS ARE EXPECTED
TO BE COMPLETED AND TRANSMITTED VIA A PUBLIC INFORMATION
STATEMENT OVER THE NEXT SEVERAL DAYS.