NWS Forecast Office Tulsa, OK

Scattered storms are expected to develop close to the KS border near a retreating warm front. These storms will be capable of producing large hail, locally damaging wind and tornadoes. Then, a line of strong to severe thunderstorms are expected to move into eastern Oklahoma this evening. Storms will continue to move east into northwest Arkansas later tonight, but should be weakening with time. Damaging wind gusts will be the primary hazard, along with a low potential for quick spin-up tornadoes and possibly some large hail. The most likely timing for severe weather is 5 PM to 1 AM.

Here is the approximate timing for the severe risk on Wednesday/Wednesday night.

There is a slight (15%) risk of excessive rainfall from showers and thunderstorms along and north of I-44 today and tonight and a marginal (5%) risk of excessive rainfall elsewhere. Isolated flash flooding is possible. Please do not attempt to drive into flooded roads and have multiple ways to receive warnings.

A cold front will move through the area Friday night into Saturday morning. Scattered to numerous thunderstorms are expected to develop along and just ahead of the approaching front. Instability, moisture, and shear will be in place for isolated to scattered strong to severe thunderstorms, especially north of I-44 Friday evening/night.

There is a slight (15%) risk of excessive rainfall from showers and thunderstorms Friday and Friday night. Isolated flash flooding is probable. Please do not attempt to drive into flooded roads and have multiple ways to receive warnings.

Unsettled weather arrives late tonight and continues into the upcoming weekend. Multiple rounds of storms, with some severe weather and heavy rain potential, can be expected.