The Flood Watch that was previously in effect for areas NW has been expanded to include most of central in until Wednesday morning.
An additional 2-4 in. of rain is expected by Wednesday morning.
The weather service indicated widespread rainfall of 1 to 2 inches has fallen on mostly frozen, saturated soils over eastern Iowa and western IL during the past 24 hours. Cities here can expect anywhere from 3-6+ inches of rain.
Heavy rain is likely Wednesday morning.
Any ice accumulations should be less than a tenth of an inch in most areas, said the weather service.
Flood stage of the Fox River in Burlington is 11 feet, which is about the level at which the river was forecast to crest by the National Weather Service's Sullivan office.
Flood warnings have been issued throughout the area thanks to heavy rain on top of the melting snow.
Branch County is under a Flood Watch until Wednesday afternoon.
Tuesday: Showers and a possible thunderstorm with high near 65 degrees and a low of about 45 degrees.
Minor flooding and standing water were reported on roads throughout the Chicago area, according to NWS meteorologist Stephen Rodriguez. But the watch was dropped early Tuesday for Wood, Ottawa, Sandusky, Seneca, and Hancock counties. The total rainfall through noon Wednesday could be over two inches. "And so that's just gonna have the rain that falls and the snow that melts, just kind of run off right into the rivers and streams".
"There will be a lull Thursday before it [the rain] ramps back up Friday and Saturday, and then dry out on Sunday", he said.