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Elev 92 ft, 38.24 °N, 76.5 °W

Great Mills, MD Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Great Mills, MD
Elevation: 92ft
Nearby Weather Stations

Active Weather Alerts

Gale Warning
Issued: 7:28 PM Sep. 23, 2026 – National Weather Service
...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
6 AM EDT FRIDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with
gusts up to 35 kt and waves 2 to 4 ft. For the Small Craft
Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt
and waves 2 to 4 ft expected.

* WHERE...Chesapeake Bay from North Beach MD to Smith Point VA,
Tidal Potomac from Cobb Island MD to Smith Point VA, Choptank
River to Cambridge MD and the Little Choptank River, Patuxent
River to Broomes Island MD, and Tangier Sound and the inland
waters surrounding Bloodsworth Island.

* WHEN...For the Gale Warning, until 6 AM EDT Thursday. For the
Small Craft Advisory, from 6 AM Thursday to 6 AM EDT Friday.

* 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.

&&

Small Craft Advisory
Issued: 7:28 PM Sep. 23, 2026 – National Weather Service
...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
6 AM EDT FRIDAY...

* WHAT...For the Gale Warning, northeast winds 20 to 25 kt with
gusts up to 35 kt and waves 2 to 4 ft. For the Small Craft
Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt
and waves 2 to 4 ft expected.

* WHERE...Chesapeake Bay from North Beach MD to Smith Point VA,
Tidal Potomac from Cobb Island MD to Smith Point VA, Choptank
River to Cambridge MD and the Little Choptank River, Patuxent
River to Broomes Island MD, and Tangier Sound and the inland
waters surrounding Bloodsworth Island.

* WHEN...For the Gale Warning, until 6 AM EDT Thursday. For the
Small Craft Advisory, from 6 AM Thursday to 6 AM EDT Friday.

* 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.

&&

Coastal Flood Warning
Issued: 7:08 PM Sep. 23, 2026 – National Weather Service
...COASTAL FLOOD WARNING NOW IN EFFECT FROM 9 PM THIS EVENING TO
5 PM EDT FRIDAY...
...COASTAL FLOOD ADVISORY IS CANCELLED...
...COASTAL FLOOD WATCH IS CANCELLED...

* WHAT...Up to one foot of inundation above ground level
expected in low lying areas due to tidal flooding.

* WHERE...Shoreline in St. Marys County.

* WHEN...From 9 PM this evening to 5 PM EDT Friday, especially
around the time of high tide.

* IMPACTS...At 3.5 feet, water covers roads on Saint George
Island, is in yards, and is approaching structures. To the
east, inundation is occurring at multiple marinas off St.
Mary's River, Smith Creek, and Jutland Creek.

* ADDITIONAL DETAILS...Tides two and a half to three feet above
normal. The next high tide at Point Lookout is at 12:04 AM and
12:27 PM. The next high tide at Piney Point is at 1:10 AM and
1:33 PM. The next high tide at Coltons Point is at 1:46 AM and
2:09 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

Time of high total tides are approximate to the nearest hour.

St Marys River at Straits Point
MLLW Categories - Minor 3.0 ft, Moderate 3.5 ft, Major 5.0 ft
MHHW Categories - Minor 1.4 ft, Moderate 1.9 ft, Major 3.4 ft

Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
24/12 AM     4.0        2.4        2.5       1.0    Moderate
24/02 PM     4.1        2.5        2.5       1.0    Moderate
25/01 AM     4.1        2.5        2.5       1.0    Moderate
25/02 PM     3.9        2.3        2.2       1.0     Minor
26/02 AM     3.9        2.3        2.2       1.0     Minor

&&

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