A few scattered showers and storms will remain possible during the next few hours. Mature storms will produce locally heavy rainfall and gusty winds. Not all locations across northeastern Oklahoma will receive showers or storms.
Afternoon highs will reach the lower 90s with partly cloudy skies. Heat index values will be nearing 95 to 100.
Later today, a weak boundary will continue moving south and should settle near or south of the I-40 corridor by this afternoon and evening. A weak disturbance approaching this boundary will coincide with peak daytime heating, leading to numerous scattered thunderstorms. Some of these storms could become strong to severe, producing damaging downbursts and very heavy rainfall. Not all areas will see storms, and the focus should be along the southern half of Oklahoma.
The Tulsa metro region will have a lower chance this afternoon compared to the southern sections. The front is expected to sag southward into the Red River Valley later tonight, taking most storm chances out of the area by late evening.
A few scattered storms may linger into Tuesday as the boundary stalls to the south, but the potential for organized storms will be lower.
Morning lows will be in the upper 60s to lower 70s. Tuesday afternoon highs will range from the upper 80s to the lower 90s with a light north breeze. Slightly drier air will arrive, bringing heat index values down into the lower or mid-90s.
Southerly surface winds will return Wednesday and persist through the weekend. A few storms will be possible both Wednesday and Thursday, but overall chances remain low, currently near 20%.
If the weak boundary remains and lifts northward on Wednesday, a slightly higher chance for showers and storms will be needed in the forecast. As of this morning, our forecast will continue with relatively low chances for Wednesday.
Morning lows will be in the upper 60s and lower 70s, with daytime highs reaching the lower 90s. Heat index values will remain in the mid to upper 90s.
The forecast for Friday, the 4th of July, features continued warm and humid conditions. Morning lows will be in the lower to mid-70s, with highs again in the lower to mid-90s. Heat stress will remain a concern, with south winds at 10 to 15 mph. A slight chance (less than 20%) of a pop-up afternoon or early evening storm will remain in the forecast for most areas.
This weekend, upper-level flow may once again bring a weak trough out of the Rockies and across the central Plains. Another weak boundary is expected to develop and slowly move southward, increasing the chance for organized storms late Saturday into Sunday. Despite the approaching boundary, weekend temperatures will remain slightly above seasonal averages, with lows in the mid to upper 70s and highs in the mid-90s. Abundant low-level moisture will push local heat index values into the 100 to 107 range.
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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.