National Weather Service United States Department of Commerce

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 >

Do you know what the difference between low, moderate, and high swim risk? For more information go to www.weather.gov/greatlakes/beachhazards
Winds and waves will be minimal today, and will increase a bit for Saturday, and again Sunday. A moderate swim risk will be present Sat and Sun as waves increase to 2-3 ft, with the highest waves further North. The only chance of rain over the weekend will be Sun afternoon.
One or more rounds of strong to severe storms are possible Sunday afternoon and evening. Timing remains uncertain.
Instability at the surface could aid the passage of a front Monday afternoon and evening. This could allow for isolated to scattered showers mid to late afternoon that could continue into the evening. The strongest of these storms could become severe with the biggest threats damaging winds and large hail.