August 20, 10:30 PM Weather Forecast Update

One of the most oppressive days of 2019 with severe weather in southwest half......Here is a look ahead based on the late evening data streaming in.

Posted: Aug 20, 2019 9:34 PM
Updated: Aug 20, 2019 10:50 PM

Highs today across the viewing area ranged from 79-88, but it was one of the most oppressive days of the year with dew points as high as 81!  Heat indices peaked as high as 101.

We saw ENHANCED RISK of severe weather over the southwestern half of the area today.

Going back to early 2015, in the graphic below are the areas that have the highest occurrence of at least ENHANCED RISK days per year.

Note how our western fringe & far south has averaged the greatest number at 1.61-2 per year.

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Here is the evolution of the complex of severe storms in Iowa to a mature, fast-moving, bowing MCS with a comma head or Bookend Vortex.  Due to the fast movement, rainfall totals over the area were 1" or less with areas in the northeast seeing less than 0.10" of rainfall.

This, after a few isolated showers & storms lastnight to early this morning.

Our 0.25" at the WLFI site gives us now 2.14" since June 24, so we are making some headway, but still far behind normal.  A wind gust of 50 mph also occurred.

Severe weather reports from before 8 a.m. this morning in Iowa (first image) to the rest of the day elsewhere (second image).

Viewing area storm reports:

A couple isolated to spotty showers/t'showers are possible part of tonight as remnants of the comma head with the MCS pivot through.

Then, areas of dense fog are possible with lows in the upper 60s to around 70.

A messy MCS with some severe risk will occur from southern Iowa & Missouri to Illinois tomorrow afternoon.

It does not look especially organized, but pulsey severe weather is possible with it.

The best severe risk will be south of our area tomorrow late afternoon-evening, but I cannot rule out an isolated severe storm or two here (wind, hail).

This will occur as some showers & storms develop & pass late afternoon-evening & into tomorrow night.

So, areas of low clouds & dense fog will give way to breaking clouds & building cumulus towers, followed by the risk of some of that rainfall (as mentioned above).

It will be an oppressive day with highs 82-88 with heat indices 91-99 with dew points in the mid to upper 70s.

After areas of dense fog Thursday morning, low clouds will break & build into cumulus towers with a few isolated showers/t'showers developing.

It will not be as humid with dew points in the 64-68 range with highs 77-83.

Areas of dense fog with lows in the 50s will occur Thursday night.

Some off & on storms of varying coverage are possible Sunday-Thursday of next week.  Temperatures will warm to the 80s to around 90 with high humidity with lows in the upper 60s to around 70.

Some severe weather risk could develop Wednesday &/or Thursday of next week.

We are still on cue to have much cooler weather Friday, August 30 through the Labor Day weekend.  Looks like 70s may dominate with lows near 50 to the 50s.

Article Comments

West Lafayette
Few Clouds
77° wxIcon
Hi: 83° Lo: 66°
Feels Like: 79°
Kokomo
Few Clouds
59° wxIcon
Hi: 80° Lo: 65°
Feels Like: 59°
Rensselaer
Broken Clouds
77° wxIcon
Hi: 78° Lo: 65°
Feels Like: 79°
Fowler
Broken Clouds
77° wxIcon
Hi: 80° Lo: 66°
Feels Like: 79°
Williamsport
Clear
78° wxIcon
Hi: 86° Lo: 66°
Feels Like: 80°
Crawfordsville
Clear
76° wxIcon
Hi: 82° Lo: 66°
Feels Like: 76°
Frankfort
Broken Clouds
78° wxIcon
Hi: 80° Lo: 65°
Feels Like: 80°
Delphi
Broken Clouds
76° wxIcon
Hi: 82° Lo: 65°
Feels Like: 76°
Monticello
Broken Clouds
76° wxIcon
Hi: 85° Lo: 65°
Feels Like: 76°
Logansport
Scattered Clouds
75° wxIcon
Hi: 77° Lo: 64°
Feels Like: 75°
Some scattered showers/storms Sunday morning, then drying & some clearing.
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