"The storm front that moved across large parts of Indiana during the afternoon and evening of July 4, 2003, was more than a precursor to that night's Independence Day fireworks. The showers at first were seen by Hoosiers as a welcome source of moisture for lawns, gardens, and cropland. This storm, however, turned out to be the opening salvo of a two-week onslaught of torrential rains that resulted in record-breaking floods in many basins. The heaviest rains were concentrated in north-central Indiana, July 5"10. During the two weeks of downpours, water filled floodplains, over-topped roadways, and poured into homes. While flood waters ravaged Indiana communities, field crews from the U.S. Geological Survey (USGS) raced to gather vital hydrologic data. They measured the river flow and water levels to provide the information needed by river forecasters, engineers, and emergency managers who rely on data from the USGS network of about 170 Indiana streamflow-gaging stations. The network is funded in a cooperative program of federal, State, and local agencies, and is part of a national network maintained by the USGS. Many of these stations are equipped to transmit real-time streamflow data. In times of emergency, real-time streamflow information is a key element in the protection of lives and property."
USGS Fact Sheet FS-094-03
U.S. Geological Survey Water Resources of Indiana: http://in.water.usgs.gov/