Tuesday Afternoon Update January 7 2020

Finally! We have snow to quiet the doubters and I am back online for an update on this website. The forecast was updated this morning on social media during my latest web glitch.  I am including that with others to compare here. Now that my latest web glitch is fixed (thanks Yoni Sapir) let’s get to business.


  • Snow will fall while surface temps are above freezing
  • Inland areas will get stickage sooner.
  • Snowfall burst can reach rates up to 1 inch per hour for a few hours
  • Road problems begin between 3 PM and 4 PM through dark in the colder inland suburbs west and north of Washington and Baltimore
  • Total snow wil be higher on the grass (1 to 3 inches in the colder zone)
  • Urban areas will have snow on the grass, but wet roads could turn slushy after 6 PM
  • Freezing possible overnight for wet untreated pavement

I was driving on I-83 at 1:30 PM and saw the snow begin to fall while temps were 41ºF. The clouds are that much colder, but still the warmer ground is the battle for what can stick and pile up. But a burst of snow has been advertised by me, others, and modeling. This is what NOAA posted recently:

Snow Burst:

Rates up to 1 inch per hour! This was the update from NOAA’s Storm Prediction Center for our region between 2 PM and 4 PM. Let’s take a look at the radar, simulations, and forecasts below:


Winter Weather Advisory

Snow is likely through this evening. Schools have closed early and those that didn’t in the snow zone have canceled evening activities.

First will be the conditions at 2 PM, them compare the radar to the Radar Simulation from the NAM 3 KM Model. My snow forecast increased just a little since last night, but we still need to account for melting on warm pavement vs. the bursts of snow.



Radar Loop (non winter model) Up To 2:05 PM



Radar Snapshot at 2 PM



Radar Simulation —> slider

It does appear that the snow has filled in faster than the modeling suggested.

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Temperature Timeline —> slider
Temps will be on the margin of freezing for much of the event in the western suburbs.
The time for road stickage will be as it gets dark between 3 PM and 5 PM in the colder suburbs.
Then colder 20s will follow after the snow ends.
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Snow Forecast:
This is just a slight increase from my first call last night. Again, this was posted this morning on social media
National Weather Service Forecasts

Morning Temperatures 
With more areas below freezing, wet pavement will have a chance to ice up, if untreated.

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  • Thanks to Shannon (weather wife) for hand picking items ‘she’ wants to wear
  • The Yoga Pants have side leg pocket for your phone
  • The Hoodie is extra soft and has the important ‘thumb holes’

FITF Store: Weather Wife


Winter Outlook Series:

My Call For Snowfall Winter 2019-2020





Snowy Winters Following A Hot and Dry September


NOAA Winter Outlook Leaves Room For More Snow With Mild ‘Seasonal Average’ Temperatures

Other  Links:

See the maps for when we normally expect the first frost in this link.

Baltimore Weather At BWI May Not Be As Hot As Reported

Construction at the airport close to the weather station may be added artificial heat. Click here or the image for the details.



Was Your County Not Included?

Click this map for more on the regional forecast zones


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