2-day rainfall totals:
Only 0.30″ of rainfall fell last night at the Purdue Airport, but the Ag Farm received over 1″.
Kentland was the highest total reported from any spotter with
After highs yesterday of 81 to 88, today will will rise to 82-87 with skies becoming partly cloudy.
It will still be humid, despite passage of weak cold front.
Front will move back northward tonight with clouds (kept it dry) with lows near 70.
Tomorrow will heat up with highs of 85-90 with high humidity.
Storms are likely Labor Day with the best potential in the evening. There will be a lot of dry hours & it will be hot & humid & rather breezy, but data favors a squall line late in the day.
So, thinking squall line will blow up Minnesota to Kansas this evening with severe weather there, then weaken. The outflow boundary may pop a few storms at any point tomorrow in our area with 20-30% coverage as it passes.
However, the squall line would tend to pop in Illinois in the mid to late afternoon & move eastward, tending to affect us in the evening.
This situation is different compared to recent rounds of storms.
The stronger mid & upper flow will actual move farther southward & overspread 4000 J/kg of surface CAPE Monday afternoon-evening. The past several rounds have had the wind fields north of our area with generally pulse-type storms with isolated severe wind/hail threat.
The instability in tandem with the better wind fields points to an organized line of storms with scattered severe wind & hail along the line, not just pulsey, isolated threat.
Locally-heavy rainfall is possible given the high dew points. Local flash flooding is possible, given recent heavy rainfall & the inability for soils absorb high rainfall rates (due to all of the rainfall fall over the past few days to couple of weeks).
For afternoon lower atmospheric profile, I selected the Lafayette grid point, but it is a good representation of the entire viewing area.
It still looks hot September 5 to around the 9 with the potential of 90 or more.
After the hot, humid weather, a more early-fall regime will set up after September 10 with some low temperatures in the 40s with a few days of highs only near 72.