Monday December 11

The clipper system racing across the northern Plains and Great Lakes looks impressive on satellite. This has expanded the snow region and something I mentioned last night and this morning as worth watching. At this time, it looks like southerly winds will stream in overnight and send us mild enough air to not have a wintry weather issue Tuesday morning.Maybe some sleet, but mostly drizzle or light rain early in the day. The main energy will pass to our north anyway. Some wintry showers later in the day mark the next big change. When arctic air spills in on Wednesday, you will feel bitterly cold wind chill. This is a signal to set the stage for two more hits of snow. First on Thursday morning and then perhaps a larger coastal storm on Friday.

Keep scrolling down. The maps and animations help tell this story quickly.

FITF

Satellite Water Vapor Animated Loop

This clearly shows the impressive spin with the upper level feature to our west. As strong as it is and cold air it will drag in behind it… warmer winds are feeding in ahead of this.

Tuesday Morning:

Mild Temperatures

Light Rain Or Drizzle At Daybreak

Consider all the snow melting that happened today. The ground is still not frozen solid, so with mild air overnight this drizzle or light rain even if briefly mixed with sleet, should not be a big travel problem. If you are traveling, the snow will be light and back west in Garrett County and north of State College PA.

Note: There may be rain and snow showers Tuesday evening as colder air arrives.

Colder Wednesday

The wind chill is the best way to prove this point. You will feel it waking up Wednesday morning.

Snowstix- We Need You To Measure Snow Too

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Next Two Systems (animation below)

Thursday Morning

Light snow arriving before daybreak on Thursday could bring minor accumulations…

Friday

We need to watch the potential of a coastal storm. This appears just out of reach, but so did the last one. It was the warmer ocean that slowed down the arctic air and kept the storm track closer to the coast. We need to see if this repeats and pulls this closer… Yes- opposite of my Atmospheric Memory Theory I mentioned in my Winter Outlook

Storm Pattern Animation

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PJ bottoms still inside out- They have to be to help bring on the snow.

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