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A tree uprooted by a weak tornado in Chicago on July 14. The Storm Prediction Center outlined a slight (2/5) risk convective outlook at 13Z, outflow from previous mesoscale convective systems had manifested as outflow boundaries over Iowa and Illinois, which were expected to be conducive to the formation of serial mesoscale convective systems that evening. [21]
As for what a typical summer weather day is in Illinois, the University of Illinois state climatologist office says highs are usually in the 80s with lows in the 60s. Days above 90 degrees are ...
The Illinois River is still an important sports fishing waterway with a good sauger fishery. Aerial view in winter looking west along the Illinois River, with the river towns of Marseilles (bottom) and Ottawa (center frame). The Illinois forms part of a modern waterway that connects the Great Lakes at Chicago to the Mississippi
Satellite loop of a supercell near Chicago producing heavy lightning on June 13, 2022. The Storm Prediction Center had outlined an Enhanced (3/5) risk for severe activity in the Great Lakes region and Ohio Valley, with forecasters predicting the formation of storms producing large hail, severe wind, and an infrequent tornado threat.
The Storm Prediction Center Severe Weather Outlook on February 26, 2023 The threat for organized severe weather across Oklahoma and adjacent areas was first highlighted by the Storm Prediction Center (SPC) nearly a week before the event, on February 21 with a 15 percent risk area issued for the eastern Texas Panhandle , the western half of ...
Forecasters identified deep troughing, as well as possible zonal flow, especially around southeast Kansas for March 13. On March 12, a Day 3 slight risk was issued for the March 14 event, extending into Arkansas, central Missouri, southeastern Iowa, and western Illinois. [4]
Convective mesoscale discussions are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center based on the National Weather Center in Norman, Oklahoma. [ 1 ] [ 2 ] One type of mesoscale discussion is a meso-gamma mesoscale discussion , which are for tornadoes believed to be at least EF2 on the Enhanced Fujita ...
The Illinois Waterway system consists of 336 miles (541 km) of navigable water from the mouth of the Calumet River at Chicago to the mouth of the Illinois River at Grafton, Illinois. Based primarily on the Illinois River , it is a system of rivers, lakes, and canals that provide a commercial shipping connection from the Great Lakes to the Gulf ...