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The remnant circulation of what at one time was Hurricane Barry is over north-central Arkansas and south-central Missouri as of Monday evening.

As you might imagine, this is helping pull juicy tropical air northbound. Note precipitable water values are exceeding 2″ now as far north as central Illinois and southwestern Indiana.

Rich, tropical air will continue to surge north and spread over central Indiana tonight and Tuesday. While we still don’t anticipate a widespread uniform soaking rain across central parts of the state, this will help lead to locally heavy downpours in scattered fashion over the upcoming 24-36 hours.

In general, we still think most central Indiana rain gauges will accumulate between 0.50″ and 1″ of rain as Barry’s remnant moisture scoots across the state. That said, there will be locally heavier totals. Latest data continues to not only hint at these heavier totals being located across southeast portions of the state, but perhaps across northwest Indiana, as well.

Once we dry things out (through the day Wednesday) the big story will become the heat and humidity. A 5-day stretch of dangerously hot, humid conditions will claim headlines during the period Thursday through Monday, featuring overnight lows between 75-80 and daytime highs in the lower to middle 90s.

Thankfully, there are drivers that will result in a rather significant pattern change by early parts of next week. A “game changer” of a cold front is expected to sweep across the Ohio Valley Sunday into Monday with gusty storms followed by much cooler conditions as we head into Week 2. These cooler temperatures are expected to carry the day as we put a wrap on the month of July. We’ll replace highs in the lower to middle 90s with upper 70s to lower 80s and overnight lows in the upper 50s to lower 60s for the better part of the late month stretch.