Central Indiana is enjoying some needed “down time” in the rainfall department this evening, but this won’t last as rain coverage and intensity returns overnight and Sunday morning. Like today, locally heavy downpours will be likely.
In looking at early 00z data, it appears as if we deal with (2) waves of rain Sunday:
Sunday morning will feature widespread rain across central Indiana, including localized heavy rain. Another “lull” in the activity will likely arrive Sunday afternoon into the evening hours, but we caution rain and embedded thunder will really begin to ramp up and increase in coverage and intensity yet again late Sunday night into the day Monday.
The second surge of moisture is more in direct association with the tropical moisture and energy moving north. This area of rain will likely include embedded rates of 3″-4″/ hour for some very localized areas. It’s impossible to pin point where these areas are, but don’t be surprised to hear (or see) some very heavy rain Monday.
When we factor in expected rain from tomorrow and Monday, it would appear as if central IN is in line to accumulate an additional 2″-4″ with locally heavier amounts. Flooding prospects will increase dramatically Monday as heavy rain falls on saturated soils. Please, take warnings seriously. Rapid water rises are likely.