Green Country Weather: Pleasant Weather Today, Fall-Like Changes Ahead
What Can We Expect Friday?
Another pleasant morning is underway across Oklahoma. Temperatures are in the mid to upper 60s along the Oklahoma-Kansas state line and in the lower 70s across southeastern Oklahoma. 
This afternoon, highs will climb into the lower to mid-90s under mostly sunny skies, along with a light northeast breeze.
A very low-end chance of a rogue shower or two exists across southeastern Oklahoma, but the probability remains near or below 10%. Dew points have dropped into the upper 60s, reducing low-level moisture and keeping heat index values below 100. 
As a result, no heat advisories are expected statewide today.
Tonight’s high school football scrimmages will enjoy pleasant conditions. Temperatures around 7 PM will be in the mid-80s, falling into the upper 70s by 10 PM.
Weekend Outlook
The first half of the weekend will feature comfortable morning lows and warm afternoons, with highs continuing to reach the lower to mid-90s under mostly sunny skies.
The first part of the pattern change arrives Saturday afternoon and early evening as a lead disturbance moves across the central plains.
This will bring a weak front nearby and increase the chance for a few showers or storms Saturday afternoon and early evening across southeastern Kansas and northern Oklahoma. 
We will include a low-end chance for a few showers or storms near the Tulsa metro Saturday afternoon and early evening. Higher probabilities will remain along the state line region.
The main mid-level ridge, currently centered over the Desert Southwest, will amplify and shift slightly northward toward the Four Corners region. Meanwhile, a powerful upper-level trough will deepen across southeastern Canada and extend into the Great Lakes. 
This setup will create a favorable upper-air flow, allowing much cooler air to filter southward along the backside of the trough across much of the Midwest and northeastern U.S.
Some of this cooler air mass will reach the central Plains Saturday evening into early Sunday, with a boundary pushing southward across northern Oklahoma Sunday morning through midday.
Next Week: Early Taste of Fall
From Monday through much of next week, this pattern will continue to support cooler and relatively drier air moving from the Missouri Valley into Oklahoma.
The upper flow will also favor several opportunities for mesoscale convective system (MCS) activity, including late Sunday night into Monday and again Monday evening into Tuesday.
Severe weather is not expected, but pockets of locally heavy rainfall are possible. The combination of cloud cover, rain-cooled air, and the broader pattern shift will keep afternoon highs in the 70s Monday through Wednesday, with morning lows in the lower to mid-60s. 
A few spots in northeastern Oklahoma may even dip into the upper 50s Tuesday and Wednesday morning.
This cooler pattern may linger through the end of the week and possibly into next weekend. Here's a look at afternoon highs and morning lows for the next 7 days. 
Here's the projections for the morning lows for the next 7 days for the Tulsa metro. 
Some locations across far northern Oklahoma may drop into the upper 50s early Wednesday morning.
We'll also include the probabilities for rain and thunder for the next 4 days. 
Some operational data suggests another large storm complex could move across northern Oklahoma Thursday night, potentially impacting the home opener for the Oklahoma State Cowboys.
Lake Levels
If you're making some lake recreation plans, here's an update on our area lake levels.
The Illinois River at Tahlequah
Hurricane Erin Update
The Morning Weather Podcast:
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Emergency Info: Outages Across Oklahoma:
Northeast Oklahoma has various power companies and electric cooperatives, many of which have overlapping areas of coverage. Below is a link to various outage maps.
- PSO Outage Map
- OG&E Outage Map
- VVEC Outage Map
- Indian Electric Cooperative (IEC) Outage Map
- Oklahoma Association of Electric Cooperatives Outage Map — (Note: Several Smaller Co-ops Included)