A mid-level disturbance moving from northeast Texas across southeastern Oklahoma will continue to result in a few scattered showers and storms across southeastern Oklahoma into western Arkansas. Combined with tropical moisture, heavy downpours would be likely for these areas.
Regarding the Tulsa metro, a slight chance for a pop-up shower or storm will continue today, with higher chances to the south and east. A few scattered storms are likely to develop today with afternoon heating but probabilities remain limited and mostly near or less than 20% for most locations.
A slightly better chance for a few showers or storms will be from 3 PM today until 9 PM tonight along the I-40 corridor region. Temperatures will climb into the lower 90s and combine with tropical moisture.
Heat index values will reach or exceed 100° in many locations, possibly as high as 104° this afternoon. South to southwest winds will increase slightly to 10 to 15 mph with some higher gusts.
A slight mention for a shower or storm will be continued for Wednesday, but probabilities will remain only near 10%. Wednesday morning lows in the 70s bring daytime highs in the lower to mid-90s.
Additional heat stress will continue to grow, with heat index values above 100° to near 105° on Wednesday.
Thursday, a strong storm system will move across the Rockies into the northern High Plains states, where showers and storms will become more numerous.
This system will help push a weak front southward, approaching southern Kansas, southwest Missouri, and northern Oklahoma on Thursday or Thursday evening.
At the same time, a mid-level ridge of pressure currently west of the area will expand eastward and should begin influencing our weather.
This means the probability of the front moving southward remains low, but an outflow boundary may approach and bring a few showers or storms near the area Thursday, especially Thursday night or early Friday.
Higher probabilities will be confined to far northern Oklahoma and southern Kansas.
By the weekend, the ridge should strengthen and keep shower and storm chances away from the area. This will also bring an increase in heat and humidity.
Morning lows will be in the mid-70s, with daytime highs climbing into the mid or upper 90s.
The combination of transpiration rates and low-level moisture will result in heat stress. Heat advisories are likely as values meet criteria, with heat index readings climbing from 104 to near 108° this weekend.
Area lake levels remain high but are slowly improving. Check ahead as high water levels may impact some recreational areas.
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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.