Up to 4 inches of slow, steady rain will soak the area this Labor Day weekend as tropical depression Isaac rambles through this part of the nation, forecasters said.

The forecast calls for the rain to begin in earnest Saturday and continue Sunday, Monday and Tuesday. The rain will come in batches and be steady at times.

“At no point this weekend do I expect any severe weather,” WHIO-TV’s Chief Meteorologist Jamie Simpson said. “The wettest days will likely be Sunday and Monday with more showers on Tuesday.”

As of Friday, meteorologists said Isaac will drift north for a time before upper winds steer it east. The slower motion of the storm will bring steadier rains in a bit later. The wettest times will be late Saturday night, Sunday and into Labor Day. Total rainfall could be as low as two inches.

Local emergency management agencies were getting regular updates about Isaac from the National Weather Service.

In the event of severe weather, the Montgomery County Emergency Management Agency will provide updates through social media, its website and through local media outlets, said Director Jeff Jordan.

“We’re going to get a lot of rain. We’re not anticipating the high winds we’ve experienced in the past,” Jordan said.

Rivers are not expected to flood and winds should not exceed 35 miles per hour, said Matt Haverkos, operations manager of the Butler County Emergency Management Agency.

Haverkos said additional staffing for safety services is planned through Tuesday and leaders have established plans for communications and sharing of equipment and resources in the event of severe weather.

While no severe weather is predicted this weekend, Haverkos said conditions can change quickly with a storm like Isaac.

One of the results of the hot, dry weather this summer is a lot of green algae that has formed on Dayton area rivers and streams, said Heather Lauer of the Ohio Environmental Protection Agency. This algae is potentially harmful to fish when it dies, and could cause fish kills, she added.