Temps in the 40s on Tuesday and Wednesday caused quick snow melt, resulting in drippy gutters, soupy lawns and water-puddled streets.
But bigger issues could be ahead if the area receives significant rainfall.
According to a hazardous weather outlook issued Wednesday by the National Weather Service Quad Cities, an intensifying and very strong storm system is expected tonight and continue into Thursday, bringing thunder, dense fog and a half inch to 1.5 inches of rain.
"At this time of year, on frozen ground, (the rain) may result in some ponding issues and urban and small stream flooding," the NWS said. "There may be a lower risk of flooding due to generally low river levels, but smaller iced-up creeks may still come out of their banks in some locations.
"The threat of ice jamming will also be on the increase along some area rivers and streams late (Wednesday) and especially on Thursday," the outlook stated.
The NWS said melting snow Tuesday released a quarter inch to an inch of water into streams and drainage ditches. "The snow pack that still exists in eastern Iowa and northwestern and west central Illinois still contains anywhere from one to three inches of water," which will continue to become run-off.
Moline public works employees were taking proactive measures Wednesday, ensuring inlet and catch basins were clear of debris and packed snow so the melting snow and rain can get to the storm sewer system, according to public works director Mike Waldron.
Otherwise, it could cause large puddles and flooded streets, he said.
Municipal services general manager Doug House said workers were focusing on critical areas, below the hills in south and north Moline, to ensure rain and run-off will get away quickly.
Today is Friday, Sept. 19, the 262nd day of 2014. There are 103 days left in the year. 1864 -- 150 years ago: Charles M. Osborn of this city, a lawyer of prominence, who voted for Lincoln in 1860 is now out strong for McClellan and will take the stump for him. 1889 -- 125 years ago: The George Fleming company had begun its dried fruit packing in a branch plant on 16th Street, Rock Island, employing nearly a hundred workers. 1914 -- 100 years ago: The cornerstone of the new Eagles home was laid. Building committee members were John Kobeman, Fred Ehmke and Frank Wich. 1939 -- 75 years ago: Former Kaiser Wilhelm, in exile, is sad as the Nazis march with communists. 1964 -- 50 years ago: Ninety-two members of the acappella choir at Davenport's West High School today accepted an invitation to perform at the New York World's Fair on June 13, 1965. 1989 -- 25 years ago: A Rock Island woman is one of 50 winners of $10,000 in cash in the Illinois State Lottery's "Celebration "89" instant ticket game. Dawn Loeffler was the third winner to be chosen through daily drawings that began Aug. 28 and will run 50 consecutive days.