New event. Freeze Warning from 11/5/2021 2:00 AM to 9:00 AM EDT for Central Maryland. More information.
Interactive NWS Alert
Radar valid at 900 am EDT, Nov 5th 2021
Central and Southeast Montgomery-Fairfax-
Including the cities of Bethesda, Rockville, Gaithersburg,
Silver Spring, Reston, Herndon, Annandale, Centreville,
Chantilly, McLean, and Franconia
406 AM EDT Thu Nov 4 2021
...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY...
* WHAT...For the Freeze Warning, sub-freezing temperatures as
low as 31 expected. For the Frost Advisory, temperatures as
low as 33 will result in frost formation.
* WHERE...In Maryland, Central and Southeast Montgomery County.
In Virginia, Fairfax County.
* WHEN...For the Freeze Warning, from 2 AM to 9 AM EDT Friday.
For the Frost Advisory, until 9 AM EDT this morning.
* IMPACTS...Frost and freeze conditions will kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government