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Maryland weather alerts

1 National Weather Service alert is in force in Maryland, covering 1 of its 24 counties: a coastal flood advisory.

Checked Sun, Sep 20, 2026, 11:59 AM EDT. Times are Eastern Daylight Time.

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Alerts in force1

Every product covering any part of Maryland, worst first, with its full text.

Minor 1

Coastal Flood Advisory

Minor

Coastal Flood Advisory issued September 20 at 8:25AM EDT until September 21 at 6:00AM EDT by NWS Baltimore MD/Washington DC

Issued Until 18 hr left

Areas Anne Arundel, MD

County pages Anne Arundel County

Full text

* WHAT...Up to one and a half feet of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE...Shoreline in Anne Arundel County. * WHEN...Until 6 AM EDT Monday, especially around the time of high tide. * IMPACTS...At 2.8 feet, flooding of some of the parking area near Dock Street in Annapolis may occur, with water surrounding the Alex Haley Memorial. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. The next two high tides at Annapolis U.S. Naval Academy are at 12:20 PM and 2:07 AM.

What to do

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

NWS Baltimore MD/Washington DCShare this alert

By county

Every county in Maryland, with what is in force there now. Each page adds the county's warning history for the past year.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.