Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley
A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >
| NWS Forecast for: Tidal Potomac from Cobb Island MD to Smith Point VA (ANZ537) Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 757 PM EDT Thu Jul 30 2026 | |
| Tonight: NW winds 5 to 10 kt. Waves 1 ft or less. Fri: N winds around 5 kt. Waves flat. Fri Night: S winds 5 to 10 kt. Waves 1 ft. Sat: S winds around 5 kt...becoming SE 10 to 15 kt with gusts to 20 kt in the afternoon. Waves 1 to 2 ft. Sat Night: S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Sun: S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Sun Night: S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers likely with a chance of tstms. Mon: S winds 5 to 10 kt. Waves 1 ft. Showers likely. A chance of tstms. A chance of showers after midnight. Tue: S winds 5 kt. Waves less than 1 ft. A chance of showers. A chance of tstms through the night. winds and waves higher and visibilities lower in and near tstms. | |
| Zone Forecast: Tidal Potomac from Cobb Island MD to Smith Point VA (ANZ537) | |
Visit your local NWS office at: https://www.weather.gov/lwx |