FORT WAYNE, INDIANA — An active day is expected north of Interstate 70 today, Wednesday, September 16, with multiple rounds of storms tracking across Illinois, Indiana and Ohio, according to a Wet Wednesday forecast from BAMWeather based on radar current as of 4:30 a.m. ET. Chances for storms grow more isolated the farther south you go, though forecasters caution a few stronger storms remain possible within today’s active corridor.
Active Day Expected North of I-70 With Isolated Chances Farther South
Forecasters drew a clear line through the map for today’s setup, with a wide dashed corridor stretching from eastern Iowa through northern Illinois, northern Indiana and northern Ohio marking where the most active, repeated storm activity is expected. South of that corridor, closer to I-70 and beyond, chances for storms drop off considerably, becoming more isolated and scattered rather than the organized, repeating rounds expected farther north.
Multiple Rounds of Storms Track From Peoria and Bloomington Through Fort Wayne and Lima
At 4:30 a.m. ET, radar already showed an active complex of storms stretching from near Peoria and Bloomington, Illinois, eastward through Kankakee and toward Fort Wayne, Kokomo, Muncie and Lima, Indiana and Ohio. Forecasters labeled this entire stretch as facing multiple rounds of storms today, meaning communities across this corridor should expect more than a single pass of rain, with additional waves of storms likely to follow as the day progresses and the system continues tracking east.
Toledo, Cleveland and Akron Sit Along the Eastern End of Today’s Storm Corridor
The same multiple rounds of storms corridor extends farther east into northern Ohio, where radar already showed developing activity near Toledo, Cleveland, Akron and Canton well before sunrise. As the day continues, forecasters expect additional rounds of storms to push into this stretch of the state, keeping communities from Toledo through the Cleveland-Akron corridor under the same active weather pattern affecting Illinois and Indiana earlier in the day.
A Few Stronger Storms Possible Within the Multiple-Round Corridor
While today’s setup is not being framed as a major severe weather outbreak, forecasters noted that a few stronger storms are possible somewhere within the active corridor stretching from Peoria to Cleveland. With multiple rounds of storms moving through the same general area throughout the day, there is an elevated chance that at least one or two of those rounds could locally intensify, even if the overall event stays focused mainly on rainfall rather than widespread damaging weather.
Indianapolis, Dayton and Cincinnati Face Only Isolated Storm Chances South of I-70
South of the main corridor, communities including Indianapolis, Dayton, Bloomington, Indiana, and Cincinnati fall into the isolated storms category for today, per the Wet Wednesday outlook. Rather than the repeated, organized rounds expected farther north, these areas face a lower, more scattered chance of seeing any storms at all today, with activity in this zone expected to stay hit-or-miss through the afternoon rather than affecting the entire region uniformly.
Louisville, Evansville and the Ohio River Valley See the Lowest Storm Chances Today
Farther south still, toward the Ohio River Valley, including Louisville, Evansville, Lexington and Charleston, West Virginia, today’s outlook shows minimal storm coverage, reflecting how sharply chances taper off the farther south you travel from the I-70 corridor. Communities in this southernmost tier are the least likely today to see any meaningful rainfall as the bulk of the day’s active weather stays focused across the northern half of the outlined states.
Current Radar at 4:30 AM ET Shows Storms Already Active From Peoria to Cleveland
A radar snapshot from 4:30 a.m. ET on September 16 captured the setup already in motion well before daybreak, with organized clusters of yellow, orange and red returns, indicating moderate to heavy rainfall, stretching in a broken line from Peoria and Springfield, Illinois, through Fort Wayne and Lima, Indiana and Ohio, and into pockets near Cleveland and Detroit. That early-morning activity set the stage for the multiple rounds of storms forecasters expect to continue redeveloping along the same general corridor as Wet Wednesday unfolds through the rest of the day.
