Sunday January 13 2019

The last surge of moderate to heavy snow developed a little later this afternoon, but score a win for the atmospheric physics. I know there were some doubters with the mid day break, but that coastal storm is developing and the upper level low is feeding in the snow for us in between.

Note: BWI had reported 5.6″ snow for the storm, but that was at 1 PM. There is a lot more to add to that, perhaps get the record for the date, plus the list for the event. Central Maryland and south could be in for a few more inches before this is done.  I will post a snow total list and map later this evening.

There have been some schools that already made their call for Monday morning. Howard County already cancelled and rightly so as they were getting heavy snow. Hartford County called a 2 hour delay and to reevaluate in the morning. That is the best they could do as the heavy snow is not there yet and they may be right on the edge of this last round of snow.

Raw Radar

This is not color coded for winter precipitation. The heaviest is in yellow and that is the snow with rates of 1 inch per hour or higher of Montgomery and Howard Counties in MD. More spotty heavy snow was falling south and east of Washington.

This was spreading north, but there is a boundary apparently south of York, stopping the progress and shifting it back to the east.  Bel Air and Harford County is not guarantee to get in on the full action this evening. The heaviest snow may remain near and west of Baltimore, then shift south.

Winter Mode Doppler Radar

 


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Radar in Motion

 

Radar Simulation –> slider

Additional Snowfall will range from a dusting to 1 inch in northern Maryland, to a few inches across I-70, metro Washington, and Rt 50 southward.

 

 

School Impact Monday Morning?

The snow will be over by morning, but the temperature region wide will be in the mid 20s. This is likely to present more icing even in areas that have been treated.

A good bet that many area schools will have at least a delay. Heavy snow in Southern Maryland and the return to snow and refreezing on the Delmarva may be to much for crews to clear in time.

 

Teachers: There is hope.

 

Maybe These Snow Day Kits Worked- Get in on the action

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Latest Snow Spotter Reports

Click here for the interactive map compared to my forecast: 

I wil update this during the evening.

 

 

Snowstix- We Need You To Measure Snow Too

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Related Links:

Winter Outlook

My Winter Outlook 2018-19: Multiple Nor’Easters and more snow

Interactive Snow Report

November 15 Snow Reports- Interactive Map Compared To My Forecast

Winter Snow And Top 5 Wet Years 

Snowfall Seasons at Beginning and End of Top 5 Wet Years In Baltimore

 

Related Winter Outlooks

Tropical Hints At Winter Snow

Solar Cycle: When Sun Spots Are Low We Get More Snow

El Nino Modoki May Enhance Snow Chances

Sweet Spot: Hitting 70ºF on Halloween is followed by more winter snow

Will A Wet Summer Bring A Snowy Winter?

 

Winter Weather Folklore

NOAA Winter 2018-2019 Outlook Explained: This Actually Supports Snow

Winter Outlook From Two Different Farmers Almanacs

Maryland Winters: Snowfall Maps and Baltimore Snow History