Rain and embedded thunder returns after a drier day, overall: Tuesday was a much drier day, overall, and sunshine built into central IN this afternoon to make for a very nice evening. Unfortunately, the vitamin D won’t stick around as clouds return tonight and give way to a rather large area of rain and embedded thunderstorms during the overnight (say after 2-3a for most of central IN). Locally heavy rainfall will be possible. Steady rains should diminish during the mid to late morning Wednesday, but scattered showers and thunderstorms will remain in our forecast throughout the day.
All eyes on Bill: There really aren’t any changes in regards to our thinking on Bill and the eventual impact on our general region from his remnants. We’re focusing in on the second half of Friday through the first half of Saturday for the most likely time period we may deal with heavy rainfall and local flash flood conditions. We stress that this isn’t a forecast “locked in stone” by any stretch of the imagination, but the overall weather pattern continues to argue for Bill’s remnants to pivot around the periphery of an upper ridge over the southeast. Latest forecast data suggests precipitable water values of 2.3″ – 2.5″ approaching central IN Friday afternoon. Needless to say, locally very heavy rain will fall for some folks. As we’ve mentioned, we’ll have to fine tune the timing and precise track of heaviest rains/ greatest flood threat as time draws closer. The way things stand now, we certainly recommend keeping a close eye on Bill, and if you live near creeks, streams, or rivers, it wouldn’t be a bad idea to review your safety plan in the event flooding or flash flooding develops.
Hot and humid pattern: Mid to long range data is pointing towards the hottest air of the year arriving next week. The wet ground will thwart the heat from reaching even hotter levels, but lower to middle 90s for highs still appear like a good bet. Speaking of wet ground, that’ll help create a tremendously humid feel next week, as well.