June 28, 10:45 PM Weather Forecast Update

The new data is in. Here is the latest information on the weekend outlook & beyond.

Posted: Jun 28, 2019 9:29 PM
Updated: Jun 28, 2019 10:50 PM

Highs today ran 86-92. 

After 88 yesterday & the day before, we hit 90 at the WLFI observation site today.

The highest the Purdue Airport has gotten is 89.

Maximum temperatures in the viewing area for all of the AWOS/ASOS, COOP, INDOT & Mesonet sites have run 88-92 since Wednesday.

Heat indices reached as high as 103 with the highest readings in our northwestern areas that saw the heavy rainfall a couple of nights ago.

Most other areas were in the 90s.

An intense severe t'storm blew up on the intersection of two of those outflow boundaries this evening northwest of the viewing area.

Busting through the cap, it produced lots of golfball hail before completely collapsing. 

Like holding a well-inflated beach ball underwater when the cell overcame the cap, it shot waaayyyy up.  When you take your hands off of the beach ball in the pool it shoots out of the water.  That is what often occurs when a developing storm breaches the cap.  One storm northwest of us this evening was up to 45,000'.

The entire viewing area & areas just northwest of us are now largely dry.

We will be dry & partly cloudy the rest of tonight with lows 68-72, followed by 89-92 tomorrow.  Heat indices of 93-104 are likely.

Skies will be partly cloudy.

It looks hot & humid for the next 7 days. 

A couple isolated storms are possible on outflow boundaries surging out of big complexes (MCSs) of severe storms northwest & north to northeast of our area up to Tuesday. 

A random severe storm is possible as any of these storms will pop, go up quickly, then collapse quickly.

Otherwise, it looks dry with daily heat indices near, if not exceeding 100 with muggy overnights near 70 to the mid 70s.

More widespread showers & storms will occur mid to late next week (including July 4th), but severe risk look isolated as stronger wind fields for organized severe storms will remain northwest, north & northeast of our area.

Dew points will rise into the oppressive range of the mid to upper 70s at times mid to late next week.  This will result in the highest heat indices of the year so far at +105.

A testament to this heat, widespread Heat Advisories & one Excessive Heat Watch are up for the first time this summer for a large area in the Plains & Midwest:

It looks hot & humid until the beginning of mid July with storms at times. 

There will likely be a severe weather day in the transition between this hot, humid pattern & then a cooler pattern mid-month.

Temperatures should average a bit below normal for multiple days mid-month with above normal rainfall.

Note we go from hot, humid overall ridging...........

It is a hot pattern for a while.......

To some cooler troughiness.........

Temps respond...........

The heat should rebuild by late, late July with 90s possible & heat indices at or greater than 100 with slightly below normal rainfall.

Note how a lot of ridging & heat build late month.........

The trend is for cooler pattern to return in early August with temperatures below normal & rainfall above normal.

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