Severe Storm Surge ● Closed
Coastal Flood Warning issued September 23 at 8:42AM EDT until September 24 at 4:00AM EDT by NWS Baltimore MD/Washington DC, United States of America
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* WHAT...For the Coastal Flood Advisory, up to one half foot of
inundation above ground level in low lying areas due to tidal
flooding. For the Coastal Flood Warning, up to one foot of
inundation above ground level expected in low lying areas due
to tidal flooding. For the Coastal Flood Watch, up to one foot
of inundation above ground level possible in low lying areas
due to tidal flooding.
* WHERE...Shoreline in St. Marys County.
* WHEN...For the Coastal Flood Advisory, until 6 PM EDT this
evening, especially around the time of high tide. For the
Coastal Flood Warning, from 9 PM this evening to 4 AM EDT
Thursday, especially around the time of high tide. For the
Coastal Flood Watch, from late tonight through Friday
afternoon, 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 to three feet above normal. The
next high tide at Coltons Point is at 1:31 PM and 1:46 AM. The
next high tide at Piney Point is at 12:55 PM and 1:10 AM. The
next high tide at Point Lookout is at 11:43 AM and 12:04 AM.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | St. Marys |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-09-23T16:45:00-04:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 26 days ago (Sep 23, 2026 12:44 UTC) · we last heard from WMO Alert Hub (national weather services) 51 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: St. Marys
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Understanding surge zones, evacuation timing, and why storm surge is the deadliest part of a tropical cyclone.
Open Storm Surge Safety Guide →Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.