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Snow Emergency Plans


A Photo of a Snow Emergency Vehicle

The Maryland State Police (MSP) declares snow emergencies with input from MD State Highway Administration. Once a snow emergency is declared, the law requires certain precautions.

They include:

  • Prohibited parking on roads and streets designated as snow emergency routes; and
  • The use of snow tires/chains (most cars now use all weather tires, so changing to "snow" tires is unnecessary);

Once an emergency is in effect, all requirements are in effect until lifted.   A Snow Emergency Plan is put into effect by county.  Certain exceptions can occur while a snow emergency plan is in effect.  A specific route(s) can be lifted and the remainders of the roads in the county still remain under the Snow Emergency Plan.   If the Statewide Operations Center is notified of an exception, we will note these routes as exceptions in our list below.  Please check back periodically for updated information.

Active Snow Emergencies

CountyDate / Time EffectiveExceptions
Allegany 3/1/2015 1:00:00 PM
Anne Arundel 3/1/2015 11:30:00 AM
Baltimore 3/1/2015 11:00:00 AM
Calvert 3/1/2015 9:30:00 AM
Caroline 3/1/2015 12:30:00 PM
Carroll 3/1/2015 9:30:00 AM
Charles 3/1/2015 10:00:00 AM
Frederick 3/1/2015 8:30:00 AM
Howard 3/1/2015 10:00:00 AM
Kent 3/1/2015 1:30:00 PM
Prince Georges 3/1/2015 10:00:00 AM
Queen Annes 3/1/2015 1:30:00 PM
St Marys 3/1/2015 11:30:00 AM
Washington 3/1/2015 8:00:00 AM

Lifted Snow Emergencies

County Date / Time Effective Date / Time Lifted Exceptions
Cecil 3/1/2015 6:30:00 PM 3/1/2015 9:30:00 PM