SnowMaps
Hazard Reports

Hazard Report Provided By forecast.weather.gov

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
536 PM EDT Mon Apr 20 2026

DCZ001-MDZ011-013-014-016>018-504-506-508-VAZ036-037-053>057-527-
210545-
/O.CON.KLWX.FZ.W.0003.260421T0600Z-260421T1400Z/
District of Columbia-Southern Baltimore-Prince Georges-Anne
Arundel-Charles-St. Marys-Calvert-Central and Southeast
Montgomery-Central and Southeast Howard-Southeast Harford-Nelson-
Albemarle-Fairfax-Arlington/Falls Church/Alexandria-Stafford-
Spotsylvania-King George-Central and Southeast Prince
William/Manassas/Manassas Park-
536 PM EDT Mon Apr 20 2026

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT TUESDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected, especially
  in outlying areas away from larger bodies of water.

* WHERE...Portions of DC, central, northern, and southern Maryland,
  and central and northern Virginia.

* WHEN...From 2 AM to 10 AM EDT Tuesday.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

To prevent water pipes from freezing, wrap or drain or allow them to
drip slowly.

&&

$$

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
449 PM EDT Mon Apr 20 2026

ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ053>057-527-212100-
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-Cecil-Southern Baltimore-
Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria-
Stafford-Spotsylvania-King George-
Central and Southeast Prince William/Manassas/Manassas Park-
449 PM EDT Mon Apr 20 2026

This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and I-95 corridor through
central Maryland, northern Virginia, and District of Columbia.

.DAY ONE...Tonight

A Freeze Warning is in effect beginning at 2 AM.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

The Freeze Warning is in effect until 10 AM Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazard Report Provided By forecast.weather.gov

© Snowforecast.com 2018, All rights reserved.