Coastal flooding alert in St. Mary’s County
The advisory, which went into effect Thursday afternoon, remains active until 4 a.m. on Friday, October 3, 2025. Forecasters warn that water levels could surge between 1 and 2 feet above ground in low-lying areas, potentially flooding roads, marinas, and yards along the shoreline.
Meteorologists note that tidal waters in the region are running 2 to 2.5 feet above typical levels, and the highest risk of flooding is expected to occur during tonight’s high tide cycles. This could result in water encroaching on properties, reaching critical roadways, and creating hazardous travel conditions for overnight commuters. Officials are urging residents to remain cautious, monitor weather alerts closely, and take precautionary steps to safeguard vehicles and property.
Areas most at risk of flooding
St. Mary’s County includes several waterfront communities that are especially vulnerable to tidal flooding. When water levels reach 3.5 feet, forecasters say roads on St. George Island typically experience water overflow, yards begin to flood, and nearby structures face potential damage.
Other trouble spots include marinas and low-lying neighborhoods along the St. Mary’s River, Smith Creek, and Jutland Creek. These areas are prone to seeing water rise above docks, seep into parking areas, and disrupt daily activity for residents and boaters. With water levels running unusually high, these communities are at elevated risk overnight.
High tide timing and locations
The timing of high tides will play a critical role in the extent of coastal flooding. According to the NWS, high tide is expected at:
- Point Lookout: 10:28 p.m.
- Piney Point: 11:26 p.m.
- Coltons Point: 12:02 a.m.
Because the forecast surge coincides with these tidal peaks, the chance of flooding is greatest during the late evening and early morning hours. Residents are encouraged to plan ahead, avoid unnecessary travel on low-lying roads, and relocate vehicles parked near the shoreline before high tide arrives.
What residents should do to prepare
Local officials recommend several precautionary measures to minimize the risks posed by coastal flooding. Residents should move vehicles to higher ground, secure outdoor belongings, and avoid driving through flooded roads, as even shallow water can create dangerous conditions.
Additionally, those living in waterfront areas should prepare emergency supplies, monitor updates from the National Weather Service, and check local government advisories for potential closures or emergency responses. Families are encouraged to have a plan in place in case rising waters affect access to their homes or communities.
Long-term flooding concerns for St. Mary’s County
Coastal flooding is not a new issue for St. Mary’s County, which has faced similar warnings during periods of high tide, heavy rainfall, and storm surges in recent years. With rising sea levels and increased storm activity linked to climate change, local officials continue to stress the importance of resilience planning and improved infrastructure.
Low-lying communities such as St. George Island, Piney Point, and Coltons Point remain among the most vulnerable. Each event underscores the need for long-term strategies to address drainage, shoreline protection, and emergency preparedness. These measures could help reduce property damage and improve safety during future flood events.
Staying informed and safe during the warning
The Coastal Flood Warning serves as a reminder that preparation and awareness are essential when living in flood-prone areas. While not all parts of the county will see severe impacts, those in vulnerable zones should take the warning seriously. Water rising even a foot or two above normal can lead to road closures, property flooding, and dangerous travel conditions.
Residents can track updated forecasts and alerts through the National Weather Service website, local news outlets, and official county emergency management channels. Staying informed and acting early can make a significant difference in protecting both property and personal safety.
With water levels expected to rise during tonight’s high tides, St. Mary’s County faces a heightened risk of coastal flooding. The National Weather Service’s Coastal Flood Warning highlights the urgency for residents to remain alert and take protective measures. By preparing ahead, avoiding flooded areas, and monitoring official updates, the community can reduce the risks posed by this overnight flooding threat.
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