A cold start for many folks this morning as temperatures are currently in the upper teens. Weak southerly flow, will develop this afternoon and help temperatures into the mid 30s despite mostly cloudy skies to start the day.
The southerly winds should calm overnight as clouds move back into the region. Overnight lows will drop to around 28°.
A frontal boundary will stall to the south and east of the region on Tuesday. This will lead to a bit of a complicated forecast. Highs will top out in the upper 30s under increasing cloud cover.
Icy Tuesday Night?
Surface low pressure to the south of the region will lead to the development of northerly winds Tuesday evening and overnight. The current NAM model suggests temperatures will hover around the freezing mark from 6 PM to 3 AM (the pink line), before dropping well below freezing Wednesday morning.
Meanwhile, winds in the lower levels of the atmosphere will be out of the south. This will keep temperatures warmer above the surface until Wednesday morning.
This scenario sets the stage for a potential icing event Tuesday night into Wednesday morning. As of now, Marshall County is right along the “battle zone”. This means we’re not sure if warm air or cold air will win out. It all depends on where the freezing line ends up. The latest NAM model suggests the northwest portion of the county may get ice, while the southeast portion may just receive rain.
The precipitation should move out of the region Wednesday morning, and may end as a little bit of snow. Temperatures are expected to warm above freezing Wednesday under partly cloudy skies, which should help melt any ice accumulations.
Stay tuned to the latest forecasts for more information. Thanks for stopping by and I hope you have a wonderful day!
-Meteorologist Jacob Wilkins