Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

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

Latest Marine Discussion:

.MARINE... Sub-SCA level winds are expected today with an isolated shower or t- storm over the waters. Overall no marine hazards today with the risk of Special Marine Warnings Friday afternoon as scattered to numerous storm chances are looking likely ahead of a crossing cold frontal boundary. Any storm will be capable of gusty winds and frequent lightning. This front drops toward the Carolinas on Saturday as high pressure builds over the northeastern U.S. The resulting winds will mainly be out of the east to northeast.Gusts will mostly be in the 5 to 10 knot range today through Friday, while pushing up to 15 knots at times when channeling occurs (mainly over the open waters) SCAs will likely be needed by Sunday afternoon as a cold front tracks through the region. Between Sunday & Monday, gusty showers and thunderstorms are possible over the waters. Winds diminish once the front passes through late Monday. Southeast winds shift northwest by Monday evening in the wake of the front. Update as of: 329 AM EDT Thu Aug 13 2026

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

[LWX marine zones]

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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