July 31, 2:30 PM Weather Forecast

More showers & storms ahead with a cool-down, then a warm-up.

Posted: Jul 31, 2020 2:01 PM
Updated: Jul 31, 2020 5:30 PM

With a mix of clouds & sun, temperatures are 76-82 over the viewing area as of 2 p.m. with a nice northeast breeze. As I type this, I have an 81 on our WLFI ob site sensor with a dew point of 61 with northeast wind at 7 mph.

Highs will tend to run near 80 to as high as 85 today with that northeast wind & the potential of a couple/few isolated showers.

It appears that the better rainfall coverage is shifting from Saturday night to Sunday midday to tonight through Saturday afternoon.

Showers will move up from the south & coverage should run at near 65% with lots of clouds Saturday & highs varying from 73-80 (warmer far north where there will be less in the way of rainfall).  I went for 75 for Greater Lafayette.  There may be an isolated rumble of thunder in the far southeast. 

Some locally-heavy rainfall is possible.

This, after lows tonight in the 60s to near 70.

Winds on Saturday will be from the northeast at 10-20 mph.

This evening to Saturday morning:

Saturday late morning through afternoon:

A good chunk of the rainfall will exit Saturday night (coverage drops from 65% to 40%).

Sunday, with clouds & some sun, a few showers & t'showers are possible with around 35% of the rainfall.

Highs Sunday should run 77-82 (81 Greater Lafayette) after morning lows in the 60s.

Saturday night-Sunday:

Meanwhile, Hurricane Isaias will batter parts of Florida & then move toward the Carolinas. 

This large-scale feature (& the low's occlusion) will cause our low (old Hanna circulation) to make that left jog, increasing rainfall potential Saturday.

Meanwhile, today to Saturday & Sunday will feature considerable severe weather risk from Arkansas & Mississippi, through Kentucky & Tennessee to southeast Indiana, Ohio, West Virginia to Maryland & Pennsylvania, then the Northeast.

However, it is really the stronger upper trough Sunday night-Monday that will be the force to keep Isaias' center largely offshore.

That is good & bad.

It is good in that there may not be a landfall until possibly Massachusetts.

It is bad because it will still be over warmer water & will maintain a degree of strength as it rides off the East Coast, battering all or parts of 14 states. 

It may also still be a hurricane or tropical storm off the Northeast coast or when it does make a landfall.

It could even become more of a hybrid storm as our upper trough merges with it.

Regardless, high waves, wind damage, tidal flooding & flooding rainfall will occur all along the East Coast.

We will have a scattered of showers & storms Monday (60%) with highs 77-81, followed by a few isolated showers with 77-82 Tuesday.

With surface high settling right overhead Tuesday & Wednesday nights, two nights of lows well down into the 50s with areas of fog are possible.

Daily highs will be nice with 78-83 by Wednesday (after that 77-82 Tuesday) & 80-85 Thursday.

Then we begin to heat up & turn muggy with multiple MCSs (complexes of storms) or "Ridge Riders in the Plains.

We will see a few of these or their old MCVs will pop new storms next weekend & early next week.

Highs may return to 88-92 with heat indices 96-102.

Trend continues to be a mid-August cool-down with more 70s to lower 80s with lows in the 50s after storms.

However, there still continues to a signal of much hotter weather in two main waves of heat in late August & early September with 90s as we dry out.

After that, a mid-September cool-down should bring temperatures back to normal to (normal by that time is highs in the 70s, lows in the 50s). 

Of course, the tropics are a bit of a wildcard as they ramp up toward peak & Cape Verde season amps up (as Saharan dust will not be a factor at this point).

West Lafayette
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Feels Like: 52°
Kokomo
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Rensselaer
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Fowler
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Williamsport
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Crawfordsville
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Frankfort
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Delphi
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Feels Like: 44°
Monticello
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Hi: 64° Lo: 38°
Feels Like: 44°
Logansport
Clear
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Hi: 64° Lo: 36°
Feels Like: 44°
Bright and Breezy with Unseasonably Cooler Conditions.
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