Sunday December 11 – Flurries have arrive. The radar shows it and the atmosphere finally supported the flakes falling and reaching the ground this morning. We have a stickage and a coating is building at my place.  This first round of flakes is just a morning thing, but will set many on the north side of Baltimore in the wintery mood. The main storm on the way will pass to our north and bring in warmer air, but cold will remain in place to possibly cause problems to the west and north of Baltimore. During the week we will watch the Polar Vortex push even colder air our way.

A Winter Weather Advisory is in place for southern Pennsylvania until 4 AM Monday. This includes Adams, York, and Lancaster Counties. Up to an inch of snow and or icy glaze expected before warmer air and rain arrive.

A Freezing Rain Advisory is in place for western Maryland west of Frederick until 10 AM for more of the icy mix.

The cold air is a tricky thing  and needs to be watched as the icy part could extend farther into central  Maryland north and west of Baltimore. There may be some more snow and icy mix tonight in Frederick, Carroll, northern Baltimore, Harford, and Cecil Counties.

I will show the snow projection maps in my next post. I think the Canadian is still too high and the GFS is too low. But a dusting to an inch is possible in north central Maryland and southern PA.


Watching the thermometer today closely will help identify  the depth of the cold air. This in turn will help determine how long the cold will hold.


Dropping Back To Freezing Tonight?


Canadian Model:

This did a better job with the light snow this morning, so let’s take a look at what it shows tonight. Here we see more of the snow and wintery mix with temperature near of just above freezing.

The GFS Model remains less impressive with more rain. First a look at the mid level winds pushing in the warmer air ahead of the storm.


Here is the GFS Model Storm Track —> slider

[metaslider id=41139]

Temperature Outlook- Even Colder!

Yesterday I wrote about the Polar Vortex sliding just north of New England and pushing real arctic air in next week. You can see that highlighted here. The cold air looks colder with each model run. I had suggested the models have trouble identifying extreme weather and may not have given full credit to this air mass yet.  Below you can see the forecast temperatures even colder with highs in Baltimore in the 20s at the end of the week.


Faith in the Flakes Online- Flannel PJs Printed Inside Out

Store Now Open

  • We’ve added Flannel PJ Pants that will be printed inside out. They have to be, to make it snow ?
  • Free Personal Delivery for orders of 20 items or more to schools and businesses.
  • Click this image for the online store.
  • Look for more items to be added soon.
  • Also see the info for the STEM Assembly Spirit Wear program:  Put your school name on the shirts and raise money for you PTO/PTA in the process.


thatcher_snowsticksAvailable in 2 Ft, 30 Inches, and 3 Ft Sizes. Also with Orange/Black or Purple/Black. Click on the image to see the options offered by my friend Thatcher at Signs By Tomorrow in Timonium.

Go to to order yours today! Click the ‘Request a Quote’ button at the top of the page. In comment box include color, size and payment information. Please indicate whether you’d like to have us UPS ship them to you or if you would like to pick up in our store. Snow Sticks will ship or will be ready for pick up in our store 48 hrs after order is placed, Mon-Fri.

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

Chip KidWxDevicesGet the award winning Kid Weather App I made with my oldest son and support our love for science, weather, and technology. Our 3 year anniversary of the release and our contribution to STEM education is this November. It has been downloaded in 60 countries, and works in both temperature scales. With your support we can expand on the fun introduction to science and real weather.

Also See:

My Winter Outlook for 2016-2017: Colder with snow spread out more

NOAA Winter Outlook for 2016 to 2017

La Nina Formed: What it could mean to our winter

Farmers Almanacs Split On Cold And Snow

Extreme Weather of 2015 balanced out on both ends

Low Snow Winters In Baltimore: Records Might Surprise You

NOAA Ranks Blizzard 2016 4th Worst Snowstorm On Record

Blizzard 2016 Record Top Snowstorm: Area Totals