Massive Lake Effect Snows to Occur in GL

A massive lake effect situation is forecast to happen in the NW Indiana area in the next week or so as cold air continues to flow over the warm waters of Lake Michigan. Below are images from different agencies.

Midwest Storm Totals (NWS)

Weather Explained: Greenland Blocking Pattern

This is Weather Explained, talking about the Greenland Blocking Pattern. The below image is from the NWS.

The Greenland Blocking Pattern is when a high pressure sets up over Greenland with mild air in that area. This makes the jet stream collapse down south, providing cold air into the areas affected as seen above.

This jet stream set-up is a particularly good conductor for snowstorms in cities such as Chicago, Rockford, and sometimes Springfield Illinois. Madison, Milwaukee Wisconsin can be affected as well.

So this will continue for the next few days, then milder temps, then some colder temps again.

Potential GL Snowstorm Watch Zone

STORMTRACKER

This is the STORMTRACKER, where we track major storms going on in the US or Europe.

So, for this edition, we are focusing on the Clipper moving across the Midwest laying down pretty significant snows.

The below image is courtesy of the Rapid Refresh Model from the FSL. It shows total accumulations from now into the distant future.

This doesn't include the past snowfall that was laid down.

So these totals look mighty interesting.

The clipper will weaken as it moves through. The below image is courtesy of the Weather Channel.

I still think Chicago will be in the 3-6 inch range from lake effect.