National Weather Service United States Department of Commerce

Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >


Map of estimated Water Temperatures
List of Water Temperature observations (at bottom of page/list)

 

Latest Marine Discussion:
.MARINE... Marginal Small Craft Advisory conditions have contracted toward southern Maryland this evening, and likely remain that way until after midnight. Have re-oriented the Small Craft Advisory as a result. As a Nor'easter well offshore starts drifting northward tonight, the pressure gradient will tighten, and stronger winds will likely expand back northward. This wind field expands a bit further Monday, with an ensuing expansion of the Small Craft Advisories. The gradient may be the tightest Monday night into Tuesday. A Gale Watch has been issued from Drum Point MD to Smith Point VA including Tangier Sound, where guidance indicates some potential for marginal gale-force gusts. The Nor'easter off the Mid-Atlantic coast will deliver a prolonged period of high end SCA conditions and potential gales (mainly over the central/lower waters). Confidence remains low for gales based upon the track of the system with projected winds out of the northeast at 10-20 kts with gusts up to 30 kts at times. There may be another uptick in the winds Tuesday night, with decreasing chances for gale conditions thereafter. Update as of: 914 PM EDT Sun Oct 18 2026

 

Click/Tap on any zone on map below for marine forecast:
Click here for the Synopsis and text forecast.

 

[LWX marine zones]

ANZ535 ANZ536 ANZ537 ANZ530 ANZ538 ANZ531 ANZ539 ANZ532 ANZ540 ANZ533 ANZ542 ANZ534 ANZ543 ANZ541

 

 

NEW FORECAST TOOL: Experimental NWS Marine Forecast Portal

Click on any marine zone on this map to go to a detailed hour-by-hour weather forecast for the next 7 days

Please provide feedback to cody.ledbetter@noaa.gov

 

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Marine Forecasts for the Lower Chesapeake Bay and Eastern VA Rivers

(These forecasts are provided by the Weather Forecast Office in Wakefield, VA)

Lower Chesapeake Bay

Smith Point to Windmill Point 

Windmill Point to New Point Comfort

New Point Comfort to Little Creek

Little Creek to Cape Henry Incl. CBBT

Eastern VA Rivers

Rappahannock River (Urbanna-Windmill Pt)

York River

James River (Jamestown-James River Bridge)

James River (James River Bridge-HRBT)

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Chesapeake Marine Observations

Hourly roundup of local/marine observations (tabluar)

Chesapeake Bay Interpretive Buoy System (CBIBS)

National Data Buoy Center (select northeast region on right side)

NOAA Tides and Currents

Tide Observations

 

Chesapeake Marine Forecasts

Chesapeake Wave Height: NWPS

 

Other Marine Links

Marine and Tide Forecasts and Warnings brochure (PDF) - Updated April 2017

Legacy Local Wind-Wave Correlations for Wave Forecasting

NOAA's Rip current Information

 

Other Marine Forecasts

All Atlantic marine products from ME to FL:

Text version          Graphic version (out to 40 miles)

 

North Atlantic High Seas Forecast

Extratropical Storm Surge Forecasts