January 17 Mild Air Brings Rain Shower Then Sunday Snow Ahead Of Polar Air

January 17 2025

Friday Morning Report

We have some big changes on the way, but there will be a two-day break. Mild temperatures today and tomorrow will include a few hours of rain showers on Saturday.

Sunday snow has a little more agreement from the big three models and is more in line with my First Call last night. All that info is below, and it looks like it will impact travel and plans for the Ravens and Bills Football watch parties.

Monday is Inauguration Day and it may be one of the coldest in US history, followed by extreme cold for the middle of next week.

CLIMATE DATA: Baltimore

TODAY January 17

Sunrise at 7:23 AM

Sunset at 5:11 PM

Normal Low in Baltimore:  25ºF

Record -7ºF in 1982 – Coldest On Record

Normal High in Baltimore: 43ºF

Record 68ºF 1913

Baltimore Seasonal Snow

7.9”

Morning Temperatures

Not as cold.

Morning Surface Weather

We get a break in the action for a day. Temps will not be as cold today and will be mild tomorrow. That will come with developing rain along a warm front. Then, the polar air will catch up and work to develop snow on Sunday as it knocks on our door.

Afternoon Temperatures 

Saturday Weather

Morning Temperatures

Radar Simulation 7 AM to Midnight

Snapshot 11 AM

A band of rain will arrive mid-day… then temps warm a little.

Afternoon Temperatures

It will get warmer just after the rain passes.

Sunday Snow Outlook

There is more agreement with the stronger storm expectations. Light to moderate snow will develop on Sunday and may be an all-day event. The heaviest is expected in the afternoon and evening.

I want to show you all the solutions from the Big Three Models to show the contrast. I did a little more analysis in this report last night.

Animations 7 AM Sunday to 7 PM Monday

Canadian Model

This has the strongest storm AND brings the rain line into parts of Central Maryland.

GFS Model

This is the middle of the road, almost a blend between the other two.

European ECMWF Model

This one was the holdout and has come back west and north with moderate snow.

Snapshots Sunday Evening And Snow Total Potential

Canadian Model

GFS Model

European ECMWF Model

My First Call For Snowfall

Polar Air Unleashed

Jet Stream: Sunday To Thursday

The core of the cold air is expected to reach our region by Wednesday.

Wednesday Morning Temperatures

The DEEP FREEZE will reach the Gulf Coast and parts of Florida.

Wednesday Morning Temperatures (Local)

These are actual forecast numbers on the thermometer.

7 Day Forecast

The focus is on Sunday with accumulating snow.

Monday will be one of the coldest Inauguration Days in US History. Then, on Tuesday and Wednesday, the core of the polar cold will arrive.

Subscribe for eMail Alerts

SNOW REPORTS THIS SEASON

Click on the maps for that full report.

January 11 Snow Report

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