Monday February 11 2019

It is an icy morning. Even if roads were treated, your car or sidewalk might be icy. That can take a while to thaw even if you have rain. The Winter Weather Advisory remains in place this morning to consider what is falling but also slow melting.

New Update Monday Afternoon

Round Two Winter Weather Advisory- New Maps

As of 6 AM Maryland schools closed include Cecil, Harford, and Carroll Counties. Many others are delayed and I expect the reevaluation may be worth paying attention to closely. We have a mix of freezing rain, sleet, and snow. The radar is having trouble identifying the transition zones properly, so I have included many area temperature maps. There will be a slow thaw today, but the wintry mix will continue. Then, snow and ice will redevelop tonight and a Winter Storm Watch goes into effect for many areas after 4 PM.

There is a lot of info to share, so I have many sliders in this post. They include temperatures at 6 AM and a timeline forecast through today. I have the MDOT interactive mapping of where the plows are located. I also added multiple radar simulations to compare where the snow and ice will extend later today and tonight. This will not be perfect as a few miles can make a big difference. So you reports on social media will help everyone.

Winter Weather Advisory This Morning

Winter Storm Watch 4 PM through Tuesday morning: Northern Maryland (Northern Harford and Baltimore, Carroll, Carroll, Frederick, Washington, Allegany) and southern PA (including York and Lancaster).

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Morning Radar

I annotated where I saw the transition zones. Your reports on social media will help everyone continue to track.

Morning Area Temperatures —> slider

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Interactive Map Of Salt/Plow Trucks

MDOT SHA S.T.O.R.M.

*If viewing on a phone:

From Facebook on iPhone you may need to open in Safari.

TURN SIDEWAY FOR BEST VIEWING

Forecast Maps

Temperature Forecast Today —> slider

The thaw may vary within just a few miles. Most roads should be wet After 10 AM until 4 PM, then back to refreezing this evening.

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Radar Simulation HRRR —> slider

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Radar Simulation NAM TODAY—> slider

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Radar Simulation NAM TUESDAY—> slider

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My Call Again

Storm Notes:

The snow will be a minor impact on Monday morning.

The transition zone will be between Washington and Baltimore. This region will be within one to two degrees of freezing. That will make or break if there is impact on the roads.

The biggest impact will be snow and icing Monday night into Tuesday morning!

Faster change to rain along and south of I-95

Longer snow and ice impact northwest of the big cities.

Nearby NW suburbs likely 2″ to 4″ snow is expected. That would be up to 1″ to 2″ of snow from each each round.
Farther northwest encircled in white could get 5″+. That is potential, not a promise. That would be up to 2″ from round 1 AND 3″+ from round 2 before mixing to ice.
In Maryland: Northern Harford, northern Baltimore, Carroll, western Howard, Frederick, and Washington Counties
Southern Pennsylvania: including Adams, York, and Lancaster Counties.

FITF and SnowStix