Good afternoon, everyone. Our southeastern snow swipe is off to our east and is being replaced by a couple of nice, but seasonably cold days. This calm weather has a short shelf life as a big storm system takes aim at us starting Sunday with another one coming behind it later next week.
The exact track of the Sunday-Tuesday system is still in question, but this will be a big time precipitation maker around here. Here’s the GFS with our system…
The initial round moving in Sunday may bring a stripe of winter weather across northern Kentucky. From there, it’s likely about rounds of heavy rain before potentially ending as some winter weather.
The rainfall numbers from the GFS are concerning…
The Canadian is a little more robust with the Sunday winter potential in the north…
This run is just a touch farther north with the heaviest rain…
The EURO has a little less rain…
Even the ICON is on the side of a heavier stripe of rainfall…
Another system follows this up before next week is finished…
Again, this is a hyper-active pattern ahead of us and it’s likely to continue right on into spring.
Enjoy the rest of your day and take care.
“Fare thee well, oh Winter of 2020/2021, we hardly knew ya…”
21, 2021 at 3:24 PM
This is from a site ran by Dr. Judah Cohen.Across North America, ridging/positive geopotential height anomalies across Greenland and in the Gulf of Alaska will help to develop troughing/negative geopotential height anomalies across Canada. However, as the whole pattern retrogrades west, the troughing will be increasingly focused across western North America. Currently widespread normal to above normal temperatures cover Canada and the United States (US), however over the next two weeks normal to below normal temperatures will build across Western Canada and the Western US with normal to above normal temperatures in Eastern Canada and the Eastern US.
In the Impacts section I discuss the possible influence from the ongoing and complex polar vortex (PV) disruption on the weather across the Northern Hemisphere
Looks like a couple of possibilities for significant snow in the Chicago area next week!