A couple rounds of light snow accumulation are on the table tonight through this weekend so read on for the details…
We will start today off with gusty south/southwesterly winds ahead of the cold front across the northwest half of the state. I would expect advisory type gusts across northwest Iowa where the wind will be whipping for a time later today. The strong wind gusts will start to die down later this evening with the arrival of light snow in western Iowa. That wave of light snow will continue to progress to the east into central Iowa overnight tonight and eventually exiting the eastern part of the state by Saturday morning. A quick trace-1″ of snow accumulation is possible with this.
The next wave will be a clipper system that will work through later Saturday evening into Sunday. At this distance we will go with probability numbers instead of exact as things continue to evolve. The probability for at least 1″ of snow is found from north central into northeast Iowa as shown below.
Snow Forecast – Valid Tonight through Saturday morning
Iowa Storm Center Wind Gust Intensity Scale –
Level 6. Damage may occur to buildings and trees. Power outages possible. High Profile Vehicle Roll-Over Likely. Do NOT recommend traveling in this zone.
Level 5. Some trees are broken, building damage possible. High Profile Vehicle Roll-Over Likely. HIGH WIND WARNING CRITERIA
Level 4. Slight damage may occur to trees/buildings. High Profile Vehicle Roll-Over Possible.
Level 3. Small branches may break, walking is difficult.
Level 2. Large trees sway, becoming difficult to walk. WIND ADVISORY CRITERIA
Level 1. Small trees sway, breezy
Probability for 1″+ of Snow Saturday night/Sunday –