Federal and state fisheries biologists say the warm water is lethal for the cold-water species and is wiping out at least half of this year’s return of 500,000 fish.
El Nino refers to the abnormal warming of the tropical Pacific Ocean.
Saturday’s heat and humidity brought with it mixed reactions around Fort Wayne.
Afternoon storms Saturday did not produce any tornado.
Some homes and garages were damaged and several trees blown down in the area, but no injuries were reported.
Combined with high humidity, the heat indexes in some areas of Indiana are expected to reach more than 100 degrees.
The twister hit three towns early Thursday evening, leaving a path of destruction.
Kentucky Gov. Steve Beshear declared a state of emergency to give local officials immediate access to state resources to assist in recovery efforts.
The first tornado was 18 miles west of Lafayette near Pine Village. The second tornado was northeast of Greencastle in Putnam county.
Business owners and neighbors said they haven’t seen this kind of flooding in nearly thirty years.
Floodwaters have started to recede and now the cleanup is underway in the Jay County city.
An elderly man was pulled from his car after driving into high water in flooded downtown Portland midday Tuesday.