We’ve had cloudy skies on this Sunday and a chilly southeast wind. That wind from the southeast will technically warm us the next 24 hours, but a wind from that direction never feels warmer this time of year. We also expect a patch of light snow and flurries to brush through Siouxland overnight. The best forcing will be north of Sioux City, just something to be aware of tonight.
Temperatures tomorrow will bounce back into the mid 20s with the stronger southeast winds. Gusts will go over 25 mph in the late morning. We expect lots of clouds and snow chances will increase by tomorrow night.
Look for good chances of snow here in Tuesday as the next weather system moves into the plains. At this point, accumulations are expected, but this system will contain some smaller scale forcing that can make it tricky to forecast. I fully anticipate there will be a narrow 20-40 mile wide band of heavier snowfall with this system, similar to what just happened north of Sioux Falls on Friday. Most of the data seems to be pointing at a southwest to northeast band from near Lincoln, NE to around Estherville, IA on Tuesday. Remember, a system like this is harder for the models to resolve, so we will use pattern recognition to help guide our forecast.
After the snow ends Tuesday, another shot of cold should arrive Thursday. The cycle of up and down weather may continue well into next week.