Thursday January 4 2018

The blizzard off of the east coast today has pulled away in a hurry but it left a lot of snow, many stories, and more extending frigid winds behind it. The final totals for the snow storm still need to be made official, so I will post that report later tonight or Friday morning. There was over 120 inches between Salisbury and Ocean City. Their Blizzard Warning was still in place this evening for blowing snow.

Wind Chill Advisory

Winds 20 to 35 mph combined with daytime temps stuck in the teens = Wind Chills Below Zero!

The purpose of this post is about the Wind Chill Advisory as the air will be dangerously cold Friday. The numbers will astonish you and may challenge some very rare cold records. This may rival the famed Polar Vortex of 2014

Bomb-Cyclone = Category 3 Hurricane

I know this may be this winter’s Polar Vortex of media overused terms. But it’s a real thing. At one point, this storm dropped 20 mb of central Pressure in 6 hours. A drop of 24 mb in 24 hours qualifies a bomb. The Pressure of 950 mb is equal to a Category 3 Hurricane. These line of equal pressure wrapped in a tight gradient translated to strong winds being pulled into the Low. This will also drag down even colder arctic air over the next few days.

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Satellite Loop

This 14 hour look of the new GOES 16 Satellite is simply amazing. Watch the intensity of the core Low off of the Mid Atlantic coast and what appears to be an eye. This is not a tropical system, but does have a warm core trapped in the middle of colder air. The contrast is what made this so impressive.

Winds Friday Morning

Even as the storm moves away it will continue to stir the atmosphere as the pressure tries to balance out. Winds will remain strong all day Friday.

Wind Gusts 20 to 35 mph


Morning Temperatures


Wind Chill

Well below zero!


Record Cold Afternoon?

The coldest afternoon high temperature in Baltimore for January 5 was 18ºF in 1896. BWI may not reach that…


Afternoon Wind Chills Stay Below Zero

May The Flakes Be With You

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Temperature Outlook

The Deep Freeze will last all weekend. There will be a thaw next week, but It may have a bump in the road on Monday evening with a chance of ice.

  • Cold Record High Temps for Baltimore:
  • January 5 = 18ºF in 1896
  • January 6 = 16ºF in 1912
  • January 7 – 16ºF in 2014 *The Polar Vortex

Ice Monday?

I would say 9 times out of 10 that we thaw our of a similar Deep Freeze, there is a system that moves through with moisture. The frozen ground, icing Bay, and snow pack will hold the cold longer. That means there will be colder air in place when the next system arrives. That is why I would caution for possible ice on Monday (at some point), when that system approaches.


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Snowstix- We Need You To Measure Snow Too

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Also See:

My Winter Outlook 2017-2018 for more snow

Maryland Winters

La Nina Formed: What it could mean to our winter

NOAA Winter Outlook: Not The Best But Not The Worst For Snow

Two Farmers Almanacs Winter 2018 Outlooks

Winter Weather Folkore: Suggestions from Animals and Crops

First Frost and Freeze Dates For Maryland (southern PA and northern VA)

My Preliminary Winter Outlook Notes

Low Snow Winters In Baltimore: To Repeat Or Not Repeat

NOAA Ranks Blizzard 2016 4th Worst Snowstorm On Record

Blizzard 2016 Record Top Snowstorm: Area Totals

Extreme Weather of 2015 balanced out on both ends