Tidal Potomac from Key Bridge to Indian Head MD Marine Forecast
| Rest Of This Afternoon...N Winds 10 Kt With Gusts To 20 Kt. Waves 1 Ft. |
| Tonight...N Winds 5 To 10 Kt With Gusts To 20 Kt. Waves 1 Ft. |
| Fri...Ne Winds 5 To 10 Kt. Waves 1 Ft. |
| Fri Night...Ne Winds Around 5 Kt. Waves 1 Ft. |
| Sat...Ne Winds 5 Kt. Waves Less Than 1 Ft. |
| Sat Night...E Winds Around 5 Kt. Waves 1 Ft Or Less. |
| Sun...E Winds Around 5 Kt. Waves Flat. |
| Mon...W Winds Around 5 Kt. Waves 1 Ft. |
| Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 258pm EDT Thu Oct 22 2026 .WHAT HAS CHANGED... Tidal flooding issues will continue into the weekend, with some headlines being extended. Check the latest CFW for updates. Small Craft Advisories were extended into Friday, see the marine forecast discussion below for details. .KEY MESSAGES... - 1) Dry and seasonable conditions continue through early next week, with frost possible this weekend. KEY MESSAGE 1...Dry and seasonable conditions continue through early next week, with frost possible this weekend. Surface high pressure remains to the north through Saturday with dry and seasonable conditions expected to continue. High temperatures today will be in the 60s for most with only highest elevations staying in the 50s. Tonight, low temperatures will be in the upper 30s to 40s. For Friday and Saturday, surface high pressure extends southward from Canada with dry cold fronts bringing in cooler air. High temperatures stay in the 50s to low 60s while overnight lows plummet into the 30s for most. The exception will be east of the I-95 corridor where low temperatures stay in the low 40s. Frost is possible Friday and Saturday night. High pressure will continue to build southward into the region Sunday through Tuesday. Dry conditions and seasonable temperatures expected each day with light north to east winds. A backdoor cold front could try to push into the region Tuesday into Tuesday night, but will have very little to no moisture with it to produce any precipitation. A surge of cooler temperatures will follow behind the front for the day on Wednesday. Marine Small Craft Advisory conditions continue across the Chesapeake Bay and lower tidal potomac through tonight into Friday. Winds will diminish in the northern Bay, but the middle Chesapeake Bay waters will likely remain elevated at least for a portion of the afternoon. Friday evening through Saturday, light winds are expected across the waters. The exception will be in the southern portions of the Chesapeake Bay where wind gusts near advisory criteria, so that SCA (Small Craft Advisory) may need to be extended in time. Light winds expected Sunday and Monday with high pressure overhead. However, by Tuesday winds will turn out of the NNE and increase a bit. It is possible that winds could approach SCA criteria in channeling flow along the Chesapeake Bay. Tides / Coastal Flooding Elevated tide levels are expected through the weekend as we approach the Full Moon on October 26, along with being in King Tide season (though we are already past the highest astronomical tides that were at the beginning of October). Sensitive locations are forecast to reach Action Stage during most of the high tide cycles this week, with Annapolis, Solomons Island, Dahlgren, Straits Point, and Alexandria expected to reach minor over the next few cycles. Numerous Coastal Flood Advisories remain in effect for these areas, with extensions possible in some locations. The presence of northerly winds is likely to keep tidal flooding within Minor flood stage. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...Coastal Flood Advisory until 7pm EDT Friday for MDZ014. Coastal Flood Advisory until 3am EDT Friday for MDZ016-018. Coastal Flood Advisory from 10pm this evening to 3am EDT Friday for MDZ017. VA...Coastal Flood Advisory until 3am EDT Friday for VAZ057. Coastal Flood Advisory until 8pm EDT this evening for VAZ054. WV...None. Marine Small Craft Advisory until 11am EDT Friday for ANZ530>532- 538>540. Small Craft Advisory until 6pm EDT Friday for ANZ533-534-537- 541>543. |
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