We’ve been having weather Deja Vu recently as active weather continues to visit the Upper Midwest. Last week we were talking heavy snow, this week, heavy rain. Heavy rain will be the main threat as much of this rain will run off into creeks and streams thanks to the frozen ground and thick snow pack. Of other concern with the heavy rain, storm drains may be covered from the rounds of snow we have received lately.
Heavy rain won’t be the only issue over the weekend. We could see everything from freezing rain, rain, sleet, and snow. We will break those precip types down in order of appearance.
Freezing rain will be possible late Friday night through early Saturday morning. The thing with this is that air temperatures will probably be above freezing, but ground surfaces will likely be below freezing. The rain falling initially will have a chance to freeze on contact creating icy spots on roads and sidewalks. Good news with this is that we aren’t expecting widespread effects from any icing. Any ice that does accumulate, and it will be minimal at best, will melt quickly as warmer air surges north. Do use caution traveling at late Friday night and early Saturday morning.
That warmer air will cause the precip to remain as mainly rain for the remainder of Saturday and the 1st half of the overnight. As mentioned above, we could see some localized flooding thanks to runoff. Ice jamming may also be a possibly a on area rivers so be on the lookout this weekend. In spots, up to or an exceeding an inch of rain is likely. This rain could be heavy at times and we may even hear a rumble of thunder or two. Here is our current rain Futurecast run.
With all of this moisture, dense fog will also be possible over the weekend. Early Sunday morning, colder air will enter the storm and that will cause the rain to change over to some sleet and eventually snow. The snow could provide us the chance to have to shovel a little bit.
The track of this system is being watched closely. If colder air gets into the system earlier, this forecast will change. We will pin down the snow side of things over the weekend. Here’s a general look at what could happen early Sunday morning through Sunday afternoon. At this time, 1-3″ of snow looks possible from early Sunday morning through Sunday evening.
This is a complex messy storm. We will have the latest over the weekend on the NewCenter.
Posted under weather, winter weather
This post was written by jkegges on March 8, 2013