December 7 Weather Freezing Fog This Morning And Snow South Tomorrow Then More Arctic Air

Sunday, December 7 2025

Morning Report

Two areas with weather alerts starting our day, and they are both based on the same reason. High Pressure is in control, but it has put a cap in the atmosphere, trapping air below. To the north in Pennsylvania, this has resulted in pollution and an Air Quality Alert.

To the south (roughly US 50 and Southward), where there is snow on the ground, the temperatures are below freezing AND fog. This may help form a glaze of ice. This Freezing Fog Advisory lasts through 9 AM.

Then much of this area may get light snow on Monday as cold winds dominate the rest of the region.

A roller coaster will boost temps back close to average mid-week, then a true Polar Vortex will send arctic air our way next weekend.

Weather Alerts Today

Freezing Fog Advisory includes Washington metro, Southern Maryland, and Delmarva:

THIS HAS BEEN EXTENDED TO 10 AM

The Air Quality Alert in Southern Pennsylvania will last all day.

Temperatures at 7 AM

Morning Surface Weather

High Pressure has capped and trapped the air here in the east. This will try to break to peaks of sun today, but willl remain hazy.

The snow in the Great Lakes will pass to our north, but along the next cold front, a new band of snow will develop. This is what will track into Virginia tomorrow.

Afternoon Temperatures

NOTE: With the cold front, there may be some flurries overnight and into the morning. More snow will pass across Virginia and may clip Southern Maryland. More on that below.

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CLIMATE DATA: Baltimore

Yesterday: Low 29F; High 45F

Precipitation: 0.01”

Snow = Trace

Season Snow Total: 1.0″

Top Wind Gust 20 mph

TODAY December 7

Sunrise at 7:13 AM

Sunset at 4:44 PM

Normal Low in Baltimore:  31ºF

Record 6ºF in 2002

Normal High in Baltimore: 50ºF

Record 77ºF 1998

Rainfall Deficit at BWI

• Ending 2024 =  -8.00”
• Since Jan 1 =  6.62”
• We are STILL DOWN -14.62” INCLUDING LAST YEAR

Snow Report December 5 to 6 and Grade My Forecast

In case you missed it. This is the brief summary of the final snow totals from the last event.

FAITH IN THE FLAKES STORE

NOW OPEN FOR THE SEASON

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MONDAY

Frigid with winds enforcing the new cold air mass. This will also help block the northern fringe of snow.

Morning Winds

From the north gusting to 20 mph.

Morning Temperatures

Morning Wind Chills

Radar Forecast Snapshot at 6 AM

Light snow and flurries may reach close to metro Washington, as snow develops across Virginia.

Radar Simulation 7 AM to Midnight

Noon Snapshot

3 PM Afternoon Snapshot

Afternoon Temperatures

Afternoon Wind Chills

Snow Forecast Potential

TEMPERATURE ANOMALY

How cold the temperatures will be compared to average in the afternoon. Yes, we will be 15 to 20 degrees below ‘average’.

Looking Ahead:

Jet Stream: North America Monday to Saturday

The advertised Polar Vortex will be sending more lobes of arctic air our way. The first will arrive on Monday, then again later in the week, which may be the coldest so far.

Snapshot Wednesday

Snapshot Saturday

Storm Forecast: Monday To Saturday

There will be a few clippers passing to our north mid-week. This will help some mild air fill in during the week, then possibly bring in a track farther south to bring us a chance for light snow on Friday into Saturday.

7 Day Forecast

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My Winter Outlook For Above-Average Snow

Click here for the full report

La Niña Advisory

This was issued October 9, as expected: A weak and short-lived event to start winter may play a different role this winter.

In Case You Missed It

Woolly Bear Caterpillar Winter Folklore

These are NOT all the same caterpillar!

Winter Outlook From 2 Farmers’ Almanacs

STEM Assemblies/In School Fields Trips Are Back

Click to see more and ‘Book’ a visit to your school

THANK YOU:

Baltimore Sun Magazine Readers’ Choice Best Of Baltimore

Maryland Trek 12 Day 7 Completed Sat August 9

UPDATED: We raised OVER $166,000 for Just In Power Kids – AND Still Collecting More

The annual event: Hiking and biking 329 miles in 7 days between The Summit of Wisp to Ocean City.

Each day, we honor a kid and their family’s cancer journey.

Fundraising is for Just In Power Kids: Funding Free Holistic Programs. I never have and never will take a penny. It is all for our nonprofit to operate.

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RESTATING MY MESSAGE ABOUT DYSLEXIA

I am aware there are some spelling and grammar typos and occasional other glitches. I take responsibility for my mistakes and even the computer glitches I may miss. I have made a few public statements over the years, but if you are new here, you may have missed it: I have dyslexia and found out during my second year at Cornell University. It didn’t stop me from getting my meteorology degree and being the first to get the AMS CBM in the Baltimore/Washington region. One of my professors told me that I had made it that far without knowing and to not let it be a crutch going forward. That was Mark Wysocki, and he was absolutely correct! I do miss my mistakes in my own proofreading. The autocorrect spell check on my computer sometimes does an injustice to make it worse. I can also make mistakes in forecasting. No one is perfect at predicting the future. All of the maps and information are accurate. The ‘wordy’ stuff can get sticky.  There has been no editor who can check my work while writing and to have it ready to send out in a newsworthy timeline. Barbara Werner is a member of the web team that helps me maintain this site. She has taken it upon herself to edit typos when she is available. That could be AFTER you read this. I accept this and perhaps proves what you read is really from me… It’s part of my charm. #FITF

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