Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

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

Latest Marine Discussion:

.MARINE... Small Craft Advisories remain in effect for this afternoon to evening as southerly channeling brings gusts of 20-25 knots. Similar winds are forecast for Monday, with another round of SCAs likely needed for most of the waters. Thunderstorms return to the forecast Sunday afternoon/evening, and some of these could be strong. Special Marine Warnings may be needed, with strong gusts over 35 knots as the primary threat to mariners. Winds drop below SCA levels Monday night, though additional periods of southerly channeling may lead to SCAs at times next week. Daily showers and thunderstorms are expected next week. Update as of: 934 AM EDT Sat Aug 1 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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