Central Indiana Wthr Weather raises flooding risk through Friday
wthr weather will keep Central Indiana under a flooding risk almost every day this week. Heavy downpours are expected to increase this afternoon, with the most significant severe weather and flooding setup late Thursday into Friday.
Areas south and west of Indianapolis face the greatest risk of heavy rainfall today, while northwestern counties and east-central areas already saw 2 to 4+ inches of rain over the weekend. Saturated soils there have little capacity left, so even modest rain could push streams and low-lying areas over the edge.
Northwestern Counties and East-Central Areas
An upper level disturbance moving across the state today, along with an exceptionally muggy atmosphere, will produce scattered to widespread showers and thunderstorms through the day. Coverage and intensity should increase this afternoon, then rain continues into tonight before gradually diminishing as the trough moves into Ohio overnight.
The week starts with a complicated setup for anyone in the wetter parts of the region. The heaviest rain threat today centers on the same areas that already absorbed multiple inches over the weekend, leaving less room for another round of downpours.
Tuesday Through Thursday
A few light showers remain possible across the eastern portion of the area through Tuesday morning. By Tuesday afternoon, the system should clear to the east and temperatures rebound into the upper 80s under clearing skies.
Wednesday brings warm southwest flow, high humidity and enough afternoon instability to produce isolated showers and storms through the evening hours. Thursday turns hot and unstable, with temperatures in the upper 80s to low 90s and dew points in the upper 60s to low 70s.
Late Thursday Into Friday
Late Thursday, a cold front moves through Central Indiana. Storms may organize into lines and clusters capable of damaging straight-line winds, and isolated large hail is also a threat.
Storms that train over the same areas could create a serious flash flooding risk, especially where multiple rounds of heavy rain have already fallen this week. The cold front clears southern Indiana late Friday night into Saturday morning, ending the repeated rain threat for the hardest-hit areas.
Saturday brings a strong Canadian high, a sharp northwest wind shift, cooler and drier air, and highs a bit closer to average. Humidity drops sharply, giving soaked ground a chance to recover after several days of repeated storms.
