A Flash Flood Watch is in effect until 2 a.m. Wednesday for Butler, Clark, Clinton, Greene, Montgomery, Preble, Warren, Auglaize, Champaign, Darke, Logan, Mercer, Miami and Shelby counties.
A Flood Warning is in effect until 11 p.m. Wednesday for the Great Miami River in Shelby County and until 2 a.m. Thursday for the Great Miami River in Middletown.
The precipitation that brought more than 2 inches of rain to the Dayton area Tuesday will let up, high streams and creeks will still be an issue with the Great Miami River expected to crest Wednesday, according to a Storm Center 7 meteorologist.
RELATED: Storm storms wreak havoc on Miami Valley
A shift in the jet stream from the south “is the reason why we’re going through these big swings,” said Storm Center 7 Meteorologist Brett Collar.
Monday’s low in Dayton was in the high 20s and Tuesday afternoon it was 56 degrees.
“The second half of this week – especially by this weekend – that jet stream is going to change and it’s going to allow colder air from the north – from Canada – to filter back down into the north…So it’s really that jet stream’s shift to go from winter to spring-like back to winter.”
RELATED: Rainfall sets new record in Dayton
After 1.7 inches of snow on Monday, severe thunderstorms swept across the area on Tuesday, causing power outages and high water followed by a tornado watch for the entire Miami Valley that was expected to end at 8 p.m.
Tuesday morning DP&L reported thousands of customers without power. That number was down to 288 by 2:15 p.m.
Wednesday morning could bring light rain and snow flurries as cooler temperatures descend on the region, Collar said. By noon, the Great Miami River is expected to crest in Dayton at 32 feet, “still a long ways away from flooding,” he said.
RELATED: High water prompts road closures
Flood advisories, watches and warnings were issued Tuesday morning as the National Weather Service said 2.19 inches of rain fell in Dayton, topping the April 3 record of 1.75 inches in 1913 and 1957.
High water caused road closings on Factory Road and Ohio 725 in Greene County, authorities said. Meanwhile, high water was reported on Rip Road Road in Huber Heights and on U.S. 68 near Young’s Dairy in Clark County, dispatchers said.
Further north and south, a flood warning is in effect until 11 p.m. Wednesday for the Great Miami in Shelby County and until 2 a.m. Thursday for that same river in Middletown.
RELATED: Tornado watch in affect
The same warning is in effect for the Little Miami River in Greene and Warren counties until 10 a.m. Thursday.
Wednesday is expected to bring gusty winds more than 35 mph with high temperatures in the low 40s, Collar said. Thursday’s forecast calls for highs in the upper 40s and Friday passing rain or snow showers are possible with highs reaching the upper 40s.
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