Public Safety Alerts

See official public safety alerts, emergency alerts, presidential alerts and weather warnings for every U.S. location.
Search all public safety alerts, or filter by severity or county.

Public Safety Alerts

Maryland, Virginia Minor Frost Advisory | Effective 10/17/2026 05:09

Frost Advisory issued October 17 at 8:09AM EDT until October 18 at 9:00AM EDT by NWS Baltimore MD/Washington DC

Event: Frost Advisory

Desc: * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central Maryland and central and northern Virginia. * WHEN...From 1 AM to 9 AM EDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Areas: Montgomery County MD, Howard County MD, Nelson County VA, Charlottesville city VA, Greene County VA, Madison County VA, Rappahannock County VA, Orange County VA, Culpeper County VA, Fauquier County VA, Loudoun County VA, Prince William County VA

Severity: Minor

Urgency: Expected

Effective: Saturday, October 17, 2026 - 05:09

Expires: Saturday, October 17, 2026 - 13:15

Sender: w-nws.webmaster@noaa.gov

Filter by Severity

Minor (1) Apply Minor filter

Filter by urgency:

(-) Remove Expected filter Expected

View by Area

(-) Remove US filter US
- Maryland (1) Apply Maryland filter
  - Howard County MD (1) Apply Howard County MD filter
  - Montgomery County MD (1) Apply Montgomery County MD filter
- (-) Remove Virginia filter Virginia

Public Safety Alerts