Dangerous Fire Conditions in the Southern High Plains; Severe Weather from the Great Lakes into Central/Southern Plains; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected from the Great Lakes into the central/southern Plains. Heavy late-season snow and cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

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

Latest Marine Discussion:

.MARINE... Increasing onshore flow today as a slow moving cold front sags south of the waters. SCAs are in effect for most of the bay and lower tidal Potomac this morning through late afternoon for northerly channeling. Expect gusts up to 20 kts before a gradual tapering of the winds tonight. East to northeast SCA level winds are expected over much of the bay and surrounding inlets Friday and Saturday given increased onshore flow. No marine hazards are expected Sunday with winds slowly switching back to the south and southeast. Winds continue below SCA levels through Monday, with northeast winds shifting southerly by Monday evening. Winds may increase in southerly flow Tuesday. Update as of: 248 AM EDT Thu May 21 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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