Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

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

Latest Marine Discussion:

.MARINE... In response to expansive high pressure over the region, winds remain light and well below any hazard thresholds. The weaker flow will yield a series of wind shifts as this ridge reconfigures in time. The bigger issue will be related to convection impacting the waterways. While chances are low, a few storms could approach the northern-most waters later this evening/night. Otherwise, an active weather weekend lies ahead for those out and about for the Independence Day holiday. Special Marine Warnings may be needed at times, particularly during the afternoon/evening hours this weekend. Before going out on the waters, ensure to check the forecast and have multiple ways of receiving hazardous weather information. Wind gusts stay below SCA thresholds through Monday afternoon. Winds could potentially approach SCA thresholds Monday evening before diminishing again Tuesday. Showers & thunderstorms remain possible over the waters for Monday afternoon & evening, potentially causing erratic winds, lightning, and storm-associated wind gusts. Update as of: 906 AM EDT Fri Jul 3 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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