Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >

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

Latest Marine Discussion:

.MARINE... Southerly channeling through this morning is going to produce SCA conditions over most of the waters, especially the main channel of the Chesapeake Bay. A weak front slowly moves south across the waters today, though not before another round of showers and thunderstorms develop this afternoon. Special Marine Warnings are likely needed again today, especially south of the Bay Bridge and over the lower Tidal Potomac. Wind gusts in excess of 35 knots are the primary threat to mariners, in addition to lightning strikes. The front pushes south of the waters this evening. Dry conditions and sub-SCA winds expected Tuesday into Wednesday morning. The stalled boundary lifts back north over the area as a warm front by Wednesday afternoon. Southerly flow returns, and could approach SCA levels over the central Chesapeake Bay. Wednesday also brings with it the return of daily afternoon showers and thunderstorms. Southerly channeling over the waters are anticipated to produce SCA conditions Thursday afternoon through Friday. Showers & thunderstorms remain possible over the waters during this period (especially in the afternoon/evening hours) due to a stalled front nearby. Update as of: 326 AM EDT Mon Aug 3 2026

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[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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