Tuesday, December 17, 2024

Snow chances return tonight, the again late Thursday

Dense fog and low visibility has been the talk of the forecast over the last two days. Now, we turn our focus to the two disturbances that aim to bring wintry precipitation to the Stateline. The first is scheduled to come in tonight into early Wednesday and then the second, which looks to be the stronger of the two disturbances, arrives late Thursday. 


Tuesday may begin with a few peeks of sun, though cloud cover will be rather quick to thicken up as the first disturbance approaches. 

Afternoon highs will end up slightly lower compared to the past few days thanks to the influence of a cooler west-northwest wind, landing in the upper 30s. From there, a quick-moving Alberta clipper system will race southeastward through the Stateline, bringing with it the potential for light rain/snow mix into the early stages of Wednesday. If any snow were to accumulate, the most we'll be looking at is a trace to 1". Now, that doesn't sound like much, this may be enough for a few slick spots to form prior to the morning commute Wednesday. Behind this clipper system, cloud cover remains, though a few peeks of sun cannot be ruled out late in the day. Northwesterly winds pick up a bit, leaving afternoon highs around the freezing mark. 

It's then that a secondary and slightly more organized system takes aim at the Stateline. This one will take a similar track into the western Great Lakes, though it does seem the main precipitation shield will be north of the Illinois and Wisconsin border.


That's where you'll find the highest potential for snow totals, across central and northern Wisconsin. Right now, we're on the lower end of the measuring stick, maybe picking up another trace to 1". 

High pressure then slides in for the weekend. This will keep systems and snow chances away. However, temperatures cool down behind Thursday's disturbance, landing in the mid 20s Saturday then in the upper 20s Sunday afternoon.

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