Conditions: Baltimore, Maryland, 12/17/2024 03:40:02 am
Temperature

51°

Cloudy with Mist and Fog

50°

Dew Point
Relative Humidity

96%

Feels Like

51°

Wind (SW)

12mph

Air Pressure

30.11

Sun
Sun Rise

07:20 AM

Sun Set

04:45 PM

Day Length

09:25 Hours

Difference

0 min 17 sec loss

Moon
Moon Rise

07:06 PM

Moon Set

09:43 AM

Next: Last Quarter

Dec 22,2024

Moon Phase

Waning Gibbous

Climate
Average Low

28°

45°

Average High
Record Low


(1951)

68°


(1984)
Record High
Conditions

Monday Night Snow Update: Accumulation Overnight

snow report
Maryland Weather
Winter Weather
Forecast
Warnings

Monday January 15 2024

One celebration today is the end of the snow drought. The report at 1 PM from Baltimore’s BWI had 0.5” snow, which exceeds all of last year. The next observation should push the 1 inch mark and then some, making this the end of our 2 year snow drought.

Doppler Radar does show the steady snow with more accumulation across southern Maryland and it will expand north tonight. With this we can expect a few inches of snow and stickage all around. This is why many area schools already called a 2 hour delay for Tuesday morning, extending the holiday weekend for many.

The morning may keep the snow in northern zones, with a band of sleet possible over metro Baltimore.

Surface Weather

As I explored with you in prior reports, the pocket of fast upper level winds or jet streak has been responsible for this snow event.

We can see Surface Low and a frontal boundary on the leading edge of the arctic air. This band of snow BEHIND the front is also called an Ana Front and common in arctic outbreaks.

This is what has made the call for timing and totals complicated.  But the region wide light to moderate snow with pure sticakge will continue all night.

January 15 weather snow storm Monday night

Winter Weather Advisory

My suggested snowfall. New Snow Maps are below.

January 15 Winter Weather Advisory

 

8 PM Set Up

Temperatures – Cold Enough For Stickage

In the 20s means a lighter snowflake that blows around easier in the wind.

January 15 weather temperatures Monday night

 

 

8:30 PM Doppler Radar

Steady Snow across metro areas from Central Virginia to Southern and parts of Central Maryland. The snow is lighter to the north..for now.

However, the entire band is shifting north.

January 15 weather snow radar Monday night

 

Radar Widget

This is not showing winter mode, but it is mostly snow. Compare to the forecast maps below.

Radar Simulation: HRRR Model

10 PM to Noon Wednesday

This product strips out the lightest snow, so where we see the dark blue, we can expect steady snowfall with accumulation.

That band will spread north all night. So yes, we are still on for the snow!

The morning may bring a band of sleet into metro Baltimore, while light snow will linger on the north side.

January 15 weather snow forecast HRRR model

Temperatures Tuesday Morning

The thaw line will be across southern Maryland.

Most of the region will remain in the deep freeze from the 20s to teens.

January 15 weather temperatures Tuesday morning

 

 

Snowfall Potential Maps 

National Weather Service

Maryland and Virginia

Still has many in the 2 to 4-inch range.

January 15 weather snow NWS Maryland Virginia

Pennsylvania

January 15 weather snow NWS Pennsylvania

 

Computer Models

NAM 3 Km Model

January 15 weather snow forecast NAM

 

GFS Model

January 15 weather snow forecast GFS

 

ECMWF Model

January 15 weather snow forecast European ECMWF

 

My First Call Map (Conservative – Low End)

I will update this by evening if need be to increase the totals.

End of Week: Another Storm?

To be honest, I have low confidence in the modeling for two reasons:

  1. It has been poor
  2. We always need to see how the storm in front behaves for the atmospheric setup that follows.

We do tend to get into patterns with arctic air masses that follow this trend. So that is why I have shown it here. There is a tendency for the system to trend closer or (Northwest) of what we see plotted here… That may introduce a rain/mix line.  Stay tuned.  FITF

 

Snapshot: Friday Afternoon

NOTE: The tendency is for the upper-level energy to speed up and pull back west/north. So, I think in a day or two, we may see this system come back together and keep snow on the outlook for Friday.

January 15 weather snow Friday afternoon

 

Storm Animation: Thursday Afternoon to Saturday Afternoon

January 15 weather snow Friday

 

7 Day Outlook

Remaining COLD! Wind Chill on Wednesday might be near zero!

January 15 weather forecast 7 day Monday

 

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RECENT Winter Outlook Reports:

My Winter Outlook: More Snow

Snow Outlook Winter 2024

 

El Niño Winter Updates

Late November: Warm Water Shifts West In Pacific Could Mean More Snow For Eastern US

El Nino Sea Surface Temperatures November 22

 

Computer Models Support East Coast Storm Track

Winter Precipitation El Nino CFSv2 Model

 

El Niño Advisory

The latest NOAA report is confident in a Very Strong event. Possibly HISTORIC! This refers to the temperatures in the Pacific, with impacts on the US Winter Storm Track.

El Nino November 2023 

 

 

Winter Weather Folklore: Top 20 and more signals from nature for snow.

 

NOAA’s Winter Outlook 2024

Winter Outlook 2024 From Two Farmers Almanacs Return to Cold and Snow

 

Explore More

Maryland Snow Climate History And Other Winter Pages

Faith in the Flakes Gear

 

STEM Assemblies/In School Fields Trips Are Back

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

 

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

 

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 when I need it and 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