National Weather Service United States Department of Commerce

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >


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

 

Latest Marine Discussion:
.MARINE... Winds will remain out of the east this afternoon. SCAs are in effect later this afternoon through tonight for the Lower Tidal Potomac and our southernmost Bay zones. Elsewhere, MWSs or SMWs may be needed at times as showers and thunderstorms move over the waters. Any showers or thunderstorms should come to an end this evening shortly after sunset. Thereafter, great boating weather is expected Monday through mid week with no thunderstorm potential. Winds will generally be out of the southeast tomorrow, south on Tuesday, southwest on Wednesday, and northwest on Thursday. Update as of: 312 PM EDT Sun Jul 12 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