Winter Weather Advisory Expanded North: My Final Call For Snowfall Saturday

Friday Evening January 10 2025

One final adjustment to the snow forecast tonight. This is back in line with my original forecast and the illusion of a bigger snowfall. On its face, this may seem like double expectations, however that is just up from nearly 1 inch to nearly 2 inches across Central Maryland and Southern Pennsylvania.

The system does push a little more moisture north, or that the dry air that was expected to erode it away will be less influential.

The other factor is that temperature will be in the 20s, which results in snowflakes that have more ‘fluff’ factor. Instead of a typical 10:1 ration of snow to liquid, it will be more like 15:1 or higher.

It will all stick.  Roads will be slick. It will be easy to push or shovel. It will be done by morning.

Headlines

• Slight Increase In Snow Totals
• Timing Is The Same
• This Will End By Sunrise Saturday

Winter Storm Alerts

The Winter Weather Advisory was expanded into Central Maryland to include Prince Georges, Anne Arundel and the Southeastern part of Montgomery. This includes Washington DC and Annapolis with just a slight uptick of snow potential in the 1 to 2 inch range.

My Final Call For Snowfall

Compare to the computer model and NWS snowfall maps below.

Friday Evening Surface Weather

Low Pressure is location on the Florida panhandle… This has produced an ice storm in Atlanta through South Carolina. Charlotte and Raleigh in North Carolina are going from snow to ice.

The cold and dry air in New England is retreating, which is what will allow the snow to expand north.

Snow will be building in to our region before midnight.

Arctic air is filling in behind this storm…

Storm Forecast: 7 PM Friday to 7 PM Saturday

ECMWF Model

The only adjustment is that the push of moisture a little farther north as the dry air to the north is losing it’s influence.

Saturday Morning Snapshot at 4 AM

Most of the region will get light snow.  A band of moderate to heavier snow will fall over Southern Maryland to Southeast Virginia.

Radar Simulation

NAM 3 Km Model

Animation 10 PM Fri to Noon Sat

11 AM Snapshot

This may be the arrival of the snow into metro Baltimore, down to Annapolis, and also including Frederick and Westminster.

This will be advancing Northeast in a hurry. Metro Philadelphia will get it by 1 to 2 AM.

Early Morning: 3 AM

This may be the peak snowfall in the urban areas.

A dry slot will show up in Northern Virginia, while snow will continue in the mountains.

Daybreak at 7 AM

The last of the snow will be exiting the beaches.

Lake Effect snow will take over and last the day for the high mountains along the ridge that runs through Garrett County, MD.

Temperatures

It will remain cold enough for the snow to stick.

Also, the colder 20s in central Maryland across Delmarva will make for a light and fluffy snow.

Farther south will be a heavier wet snow between Richmond and the Eastern Shore of Virginia.

Repeating My Final Call For Snowfall

To compare to the computer model maps

National Weather Service Forecast (Baltimore/Washington Office Region)

Computer Model Snow Forecasts

European ECWMF

GFS Model

High Resolution Models

NAM 3Km

HRRR Model

RAVENS GAME WEATHER

Afternoon Temperatures

Tailgating will be barely above freezing.

8 PM

Temperatures

Dropping back into the 20s.

Wind Forecast

Gusts to 30 mph will definitely make it feel colder.

Wind Chill

It will start to feel like the teens.

BUNDLE UP!!!

Mountain Snow

There has been epic snowfall across the larger ski resorts in the last week. These will continue to get more.

7 Day Forecast

Remaining cold: Near or below freezing through the week.

Subscribe for eMail Alerts

January 6 Snow Report

Previous Snow

November 22 Snow Report

ALSO SEE

Arctic Outbreak For January

If you missed it, here is my detailed report from December 30 about why this IS A BIG DEAL!

MY WINTER OUTLOOK

My Winter Outlook Report

FITF Gear on Sale

In Case You Missed This

The Faith In The Flakes Dec 5 Origin Story

Please share your thoughts and best weather pics/videos, or just keep in touch via social media.

• Facebook: Justin Berk, Meteorologist

• Twitter

• Instagram

SCHEDULE A WEATHER BASED STEM ASSEMBLY

Severe Weather: Storm Smart October and next spring Winter Weather FITF (Faith in the Flakes): November To March Click to see more and send a request for your school.

THANK YOU:

Baltimore Magazine Readers Choice Best Of Baltimore

Maryland Trek 11 Day 7 Completed Sat August 10

We raised OVER $104,000 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.

Click here or the image to donate:

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 also can 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