Storms will begin to fire later tonight from Hays, Kansas to Fayetteville, Arkansas. The storms will be isolated so not everyone will get a severe storm.
The main risks will be for damaging winds and large hail. The big concern with the severe risk will be the timing. Storms will likely develop later tonight and early Wednesday morning.
The timing for the storms will be well after sunset, but they could be picking up in intensity during the early morning hours when people are generally sleeping. Make sure you have a way to get severe weather alerts if you are located in these areas.