Friday Weather Update: Hot and humid conditions before thunderstorms move in late this afternoon

Posted 9:17 AM Friday, July 10, 2020
Updated 11:10 AM Friday, July 10, 2020

Today will bring another hot and humid day to the Valley. There is some good news, though. It will be our last day of 90-degree temperatures for a while.

Temperatures locally will quickly heat up to the low-90s again today. And, with dew points in the low-70s it will be pretty soupy out there again and heat index values can be in the upper-90s this afternoon.

Temperature snapshot at 4:00 PM: A weak cold front will travel east across Ohio tonight bringing numerous showers and thunderstorms late today. Temperatures this afternoon ahead of the front will be in the low-90s but cooler air behind the front will bring temperatures about 10-degrees cooler for Saturday.

While I can’t completely rule out an isolated shower or storm late in the morning and early afternoon, the bulk of today looks to remain dry. Showers and thunderstorms will begin developing in the west by mid-afternoon – around 3:00/4:00 PM – and become more numerous as they travel east. Thunderstorms will be fairly random and whether or not a storm hits your neighborhood is a crap-shoot.

Simulated radar from the hi-res model for today through 1:00 AM Saturday.

There is a lot of moisture available in the atmosphere today. So, much like the storms that moved through central portions of Tuscarawas County on Wednesday, these can be efficient rain producers. Heavy rainfall and localized flash flooding can occur in any of these storms today. Some can also produce gusty wind and small hail. Generally, though, we’re not expecting widespread severe thunderstorms.

Thunderstorm activity and coverage should wind down after sunset this evening. Below is a graph I plotted this morning that shows the potential for showers and storms based on New Philadelphia.

GREEN = Rain Odds; RED = Thunderstorm chances

Rain and storm chances will linger overnight – especially before midnight. Generally speaking, we can expect about a quarter to a half-inch of rain into Saturday morning. Areas that happen to get a downpour will of course end up with higher amounts of rain. Most of the Valley has been pretty dry of late so we kind of need this rain.

Saturday won’t be a complete washout but we will see several rounds of showers move through the region throughout the course of the day – especially in the morning and midday time frame. These will become less of an issue as we get toward the afternoon. While is will remain somewhat humid tomorrow, temperatures will only reach the low-80s. That’s about 10-degrees cooler!

This break in the 90-degree heat will remain with us Sunday through Tuesday. The heat will return by mid-week next week and we’ll be right back to the 90s once again.

For real-time local weather updates and storm updates throughout the day follow TuscWeather on Twitter @tuscwx. I’ll also post any new updates on the TuscWeather website and the TuscWeather app.



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