Rain and Snow Hit Pacific Northwest; Flood Concerns in Southern Plains 11-14 to 11-16
CONUS — Our weekend weather outlook is bringing plenty of action with rain and possible snow hitting the Pacific Northwest and West Coast, while the Southern Plains and Lower Mississippi Valley face flash flooding risks. The Mid-Atlantic and Southeast will experience chilly temperatures with freeze and frost conditions. From Saturday through Monday, if you're in these areas, here's what you can expect.
Pacific Northwest/West Coast: A strong low-pressure system off the coast is delivering multiple rounds of rain and mountain snow through the weekend. The term 'atmospheric river' means a concentrated flow of moisture, leading to heavy precipitation. Expect heavy rain and high elevation snow, especially on Saturday, in places like Seattle,WA and Portland,OR. Coastal areas will see gusty winds, high surf, and hazardous conditions. More moisture arrives Sunday, continuing rain into San Francisco,CA and Eureka,CA.
Southern Plains/Lower Mississippi Valley: As a mid-level system moves east, the area will get widespread showers and possible thunderstorms. The combination of moist air from the Gulf and the system’s energy will create a risk of heavy rain and flash flooding, particularly on Saturday across Dallas,TX and Oklahoma City,OK, shifting to Houston,TX and the Lower Mississippi Valley by Sunday.
Eastern U.S.: A trough in the upper atmosphere will keep things cool across the Great Lakes to the Northeast, such as in Buffalo,NY and Detroit,MI. Expect lake-effect rain and snow showers thanks to cold air moving over warm lake waters. The Ohio Valley and Northeast remain wet with scattered showers. Higher elevations could see a switch from rain to snow due to colder air. Overnights will be chilly with frost and freeze advisories in the Southeast, Lower Mississippi Valley, and Mid-Atlantic, affecting areas like Atlanta,GA and Richmond,VA through Sunday.
With the potential for severe weather, especially in areas prone to flooding and other adverse conditions, it's important to stay updated with local forecasts and advisories, check out our current weather and forecast visualization maps, as well as selected areas below related to our report. Use the slider to move forward and back in the days and time to view how forecasts will affect an area; the related timestamp is located above the Play button. Be Safe!
Weather Terms Glossary
