Key facts
- Slight risk (level 2/4) of excessive rainfall forecast for Southern Plains Tuesday-Wednesday.
- Showers and thunderstorms expected across Northern Rockies, Plains, and Southwest.
- High pressure over Lake Superior is directing moisture into the High Plains.
- Possibility of scattered severe storms in the High Plains.
- Chance of an isolated tornado in western South Dakota.
A slight risk of excessive rainfall is forecast for parts of the Southern Plains on Tuesday and Wednesday. This forecast follows a previous outlook for severe weather in the Ozarks, Mid-South, and central Plains. Additionally, showers and thunderstorms are expected across the Northern Rockies, Plains, and Southwest over the next few days. High pressure over Lake Superior is directing moisture into the High Plains, leading to the possibility of scattered severe storms. There is also a chance for an isolated tornado, particularly in western South Dakota. Strong winds aloft are ejecting out of the Rockies, leading to tornado potential over the Northern High Plains due to overlapping instability. This pattern follows a month of quiet jet stream activity.