Please stay tuned to this page for updates and/or changes to this National Weather Service(NWS) Message. As the storm comes closer, the NWS will update or modify any existing warnings, and/or watches. 



NWS-Thursday-commute

UPDATED Snow Totals in top image 9:00 p.m.


URGENT - WINTER WEATHER MESSAGE

National Weather Service Baltimore MD/Washington DC

435 AM EST Thu Jan 4 2018

Prince Georges-Anne Arundel-Charles

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS

MORNING...

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING

TO NOON EST FRIDAY...

* WHAT...Snow this morning. Very cold wind chills expected late

  this evening through Friday morning. Plan on slippery road

  conditions, including during the morning commute. Total

  accumulations 1 to 3 inches expected. Expect wind chills to

  range from 0 to 10 below zero late this evening through Friday

  morning.

* WHERE...Portions of the Baltimore-Washington metro area along

  and just east of Interstate 95.

* WHEN...For the Winter Weather Advisory, until 11 AM EST this

  morning. For the Wind Chill Advisory, from 10 PM this evening

  to noon EST Friday.



* ADDITIONAL DETAILS...Be prepared for reduced visibility at

  times from snow this morning. The cold wind chills will cause

  frostbite in as little as 30 minutes to exposed skin.

  Northwest winds will average between 20 and 30 mph with gusts

  around 40 mph through this evening...decreasing to 15 to 25

  mph later tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods

of snow and blowing snow will cause primarily travel

difficulties. Be prepared for snow covered roads and limited

visibilities, and use caution while driving. The latest road

conditions for the state you are calling from can be obtained by

calling 5 1 1.



A Wind Chill Advisory means that cold air and the wind will

combine to create low wind chills. Frost bite and hypothermia can

occur if precautions are not taken. Make sure you wear a hat and

gloves.


URGENT - WINTER WEATHER MESSAGE

National Weather Service Baltimore MD/Washington DC

435 AM EST Thu Jan 4 2018

St. Marys-Calvert

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM EST THIS

MORNING...

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING

TO NOON EST FRIDAY...

* WHAT...Snow through this morning. Very cold wind chills

  expected late this evening through Friday morning. Plan on

  difficult travel conditions, including during the morning

  commute. Storm total snowfall of 3 to 6 inches expected.

  Expect wind chills to range from 0 to 10 below zero late this

  evening through Friday morning.

* WHERE...St. Marys and Calvert.

* WHEN...For the Winter Storm Warning, until 11 AM EST this

  morning. For the Wind Chill Advisory, from 10 PM this evening

  to noon EST Friday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in

  visibility through this morning from snow and blowing snow. The

  cold wind chills will cause frostbite in as little as 30 minutes

  to exposed skin. Northwest winds will average between 20 and 35

  mph with gusts around 50 through this morning. Northwest winds

  will gust around 40 to 45 mph this afternoon and evening before

  decreasing to 15 to 25 mph later tonight. Gusty northwest winds

  may cause downed trees and tree limbs.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe

winter weather conditions are occurring. If you must travel, keep

an extra flashlight, food and water in your vehicle in case of an

emergency. The latest road conditions for the state you are

calling from can be obtained by calling 5 1 1.

A Wind Chill Advisory means that cold air and the wind will

combine to create low wind chills. Frost bite and hypothermia can

occur if precautions are not taken. Make sure you wear a hat and

gloves.

Hazardous Weather Outlook

National Weather Service Baltimore MD/Washington DC

519 AM EST Wed Jan 3 2018

Chesapeake Bay north of Pooles Island MD-

Chesapeake Bay from Pooles Island to Sandy Point MD-

Chesapeake Bay from Sandy Point to North Beach MD-

Chesapeake Bay from North Beach to Drum Point MD-

Chesapeake Bay from Drum Point MD to Smith Point VA-

Tidal Potomac from Key Bridge to Indian Head MD-

Tidal Potomac from Indian Head to Cobb Island MD-

Tidal Potomac from Cobb Island MD to Smith Point VA-

Patapsco River including Baltimore Harbor-

Chester River to Queenstown MD-Eastern Bay-

Choptank River to Cambridge MD and the Little Choptank River-

Patuxent River to Broomes Island MD-

Tangier Sound and the inland waters surrounding Bloodsworth

Island-District of Columbia-Southern Baltimore-Prince Georges-

Anne Arundel-Charles-St. Marys-Calvert-Southeast Harford-

Prince William/Manassas/Manassas Park-Fairfax-

Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-

King George

This Hazardous Weather Outlook is for the Maryland portion of the

Chesapeake Bay, Tidal Potomac River, and adjacent counties in

central Maryland and northern Virginia as well as the District of

Columbia.

DAY ONE...Today and Tonight

A Winter Weather Advisory is in effect for St Marys and Calvert

Counties...beginning at 10 pm late this evening. Accumulating snow

is expected late tonight across these areas. Elsewhere...a period

of light accumulating snow is likely after midnight across the

Washington and Baltimore Metropolitan areas. Any snow that does

fall will stick on paved surfaces, causing the potential for

hazardous conditions during the Thursday morning commute.

A Gale Warning is in effect for portions of the waters beginning

at 1 AM early Thursday Morning.

DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A Winter Weather Advisory continues until 11 am for St Marys and

Calvert Counties for accumulating snow. Elsewhere...light snow

accumulation is likely for the Washington and Baltimore

Metropolitan areas Thursday morning and this may cause hazardous

conditions for the Thursday morning commute.

Sub-zero wind chills which could cause hypothermia and frostbite

are possible Thursday night through Saturday morning. Wind Chill

Advisories may be required.

A Gale Warning is in effect for the waters Thursday, and may need

to be extended through Friday.

There is a slight winter storm threat Sunday night into Monday.

If the threat materializes, it could cause travel disruptions.