Record rainfall produced flash flooding over Northeast Illinois. Number of injuries: Unknown July 17-18 1996 Location impacted (areal coverage): Northeast Illinois Volunteers sandbagging in downtown Alton, Illinois US 36 from Hull to Illinois 336, as well as Illinois 106E from Hannibal to Kinderhook, were closed due to the flooding. The town of Hull was severely flooded when the Hull-Sny Island levee breached on July 25. The Nutwood Levee broke on July 18, flooding over 11,000 acres including many homes and businesses from Kampsville to Hardin. The Niota levee broke on July 10th, flooding 100 acres and 40 homes. 100 from Hardin to Pearl as the lower Illinois River continued to rise. Some notable flood events during July in Illinois included the closing of Rte. By mid-July 1993, many levee breaches had occurred and flooded vast areas along the Mississippi River. including the Illinois, Rock, and Big Muddy rivers, were in flood as well with many more rising above flood stage in the days to follow. Railroad traffic was also impacted by the floodwaters and in many cases railroad commerce was stopped.īy mid-June 1993, many locations in and bordering Illinois along the Mississippi river were near or already above flood stage. As many as ten commercial airports were flooded at some point. Many bridges were washed out or closed due to flooding during the event. Barge traffic on the Mississippi and Missouri rivers was halted for nearly two months. For example, on September 1, 1993, the towns of Hannibal, Louisiana, and Clarksville, MO, had experienced 153 consecutive days of flooding. The flood of 1993 was significant for not only the magnitude of the event, but also the duration of the flooding. Approximately 600 river forecast points in the Midwest were above flood stage at the same time during the event. Flood records were broken at 44 forecast points on the Upper Mississippi River system and 49 points on the Missouri River system. Record flooding was recorded at 95 forecast points in the Upper Midwest during the summer of 1993. Some 150 rivers were affected with numerous levee failures over overtopping. Economic damages were estimated to approach $20 billion. By July 1993, the great flood was responsible for numerous evacuations from flooded homes, extensive flooding of agricultural areas, and the disruption of barge traffic along a 500 mile stretch of the Mississippi river. This rain falling over already saturated soils from the previous spring resulted in record flooding along the Mississippi River and many of its tributaries. Rainfall totals approached 300 to 400 percent of normal during the spring and summer of 1993 across the Midwest. There was unprecedented rainfall over portions of the upper Midwest during the summer of 1993. Number of fatalities: 50, across 9 statesĭollar damage: $20 billion, across 9 states ![]() More thunderstorms could develop, dropping anywhere from 1 to 3 more inches of rain.Īnd today, the moisture will not be contained in the South.Location impacted (areal coverage): Upper Midwest The Weather Prediction Center pointed out a corridor of moisture will continue the convection which has plagued the area for the past couple of days. The area flooded yesterday is under the gun again today. What was once thought to be a 1 in 200-year rainfall event, which led to swollen creeks and rivers in the mountainous region, water rescues, and flooded homes and businesses, was, in fact, a 1 in 1000-year rainfall event, according to analysis from CNN meteorologist Haley Brink. The same storm system triggered a flash flood emergency in western Georgia Sunday afternoon. “Scattered to numerous flash floods (are) possible early this week from southern New England to the southern Appalachians,” the Weather Prediction Center said. Moisture streaming in from the Gulf of Mexico, combined with a stubborn, nearly stationary storm system, will cause slow-moving thunderstorm activity and the possibility of flash flooding across 20 US states Monday.
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