Christmas Arctic Front: Compare Live Radar To Slower Model And Snow Is Still On

December 24 2020

I am putting this post together late on Christmas Eve for those who can’t sleep because of the noisy wind, wrapping gifts, or building something for your kids. I want to make this brief, but provide you with the latest info and resources.

The front is moving through a few hours faster, and I still have high confidence that most of us will see snow in some variety on Christmas Day

 

Main Weather Points:

• The front appears to be moving through faster than models suggested. This is why I kept playing up ‘around midnight’. There seems to be consistency in the slow bias with modeling. We saw that with the snow last week.
• Heavy rain has prompted many flood warnings. There have been a few severe warning, but the actual front may contain the strongest winds.
• Snow!  Western Maryland has it, and there will be a mix or change over briefly into central Maryland before the precip stops.
• Christmas Day: The models have finally caught up to the Vort Max I was showing you for days.  There is a solid depiction of snow squalls that could bring a coating to 1 inch in spots. Yes, it will be cold enough for stickage.

 

 

Evening Surface Weather

This is a very busy map, and I wanted to log it here for reference later.

 

Temperatures At 11 AM

 

Cold Air Moving In —> slider

 

 

Radar Snapshot at 11 AM

 

Front Faster Than Models

Compare Live Radar To The HRRR Model Slider

The front appears to be close to 2 hours faster than models projected.

Live Radar Widget

 

 

 

 

HRRR Model Simulation —> 

 

 

Christmas Day Snow

I do not have a snow map, but snow showers, even heavier squalls will be possible at anytime  of the day. They will be more pronounced in the afternoon and evening.

It it possible to get a quick coating to 1 inch. It will be cold enough for stickage.

 

Morning

 

Afternoon

 

 

 

Night

 

 

 

Christmas Day Storm Warnings And Alerts