Active Weather Alerts
Coastal Flood Advisory
Issued: 4:23 PM Jun. 18, 2026 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Southeast Harford County. * WHEN...Ongoing through 4 PM. * IMPACTS...At 4.0 feet, water begins to go over the bulkhead at the Havre de Grace Yacht Basin in multiple locations. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Havre de Grace is at 12:51 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && Time of high total tides are approximate to the nearest hour. Chesapeake Bay at Havre de Grace MD MLLW Categories - Minor 4.0 ft, Moderate 5.5 ft, Major 7.0 ft MHHW Categories - Minor 2.2 ft, Moderate 3.7 ft, Major 5.2 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 18/01 PM 4.3 1.9 1.5 3.0 Minor 19/01 AM 3.1 0.7 1.2 1.0 None 19/02 PM 3.2 0.8 0.6 1.0 None 20/03 AM 2.4 -0.0 0.3 1.0 None 20/03 PM 2.8 0.4 0.4 1.0 None 21/04 AM 2.6 0.2 0.3 1.0 None &&
Gale Warning
Issued: 1:14 PM Jun. 18, 2026 – National Weather Service
...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY HAS EXPIRED... * WHAT...Southwest winds 10 to 20 kt with gusts up to 35 kt. * WHERE...Chesapeake Bay north of Pooles Island MD and Tidal Potomac from Key Bridge to Indian Head MD. * WHEN...For the Gale Warning, until 8 PM EDT today. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
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