Weather Underground Forecast for Wednesday, October 09, 2013.
A cold front will push wet weather into parts of the Pacific Northwest, Southwest, and Great Basin on Wednesday, while a ridge of high pressure will help keep the eastern third of the country relatively dry.
Light rain will occur along the coast of Washington early in the day, but most of the Pacific Northwest will experience cool, dry conditions as a cold front continues to move further east. The same cold front will drive moisture into the Southwest and Great Basin as inland valleys and deserts will experience light to moderate showers. Snow showers will be possible in the Rockies, especially at high elevations. Snow accumulations will remain low as mixed precipitation will kick in during the day.
To the east, a ridge of high pressure will build over the Midwest, bringing warmer, drier conditions to the Mississippi Valley and into the Ohio Valley. A high pressure system will also keep conditions dry in New England. Along the Southeast coast, a low pressure system will usher wet weather into the Southeast and Mid-Atlantic, as several states can expect rain and thunderstorms on Wednesday. Thunderstorms will affect the coasts of South Carolina, North Carolina, and Virginia, while spotty showers will dampen West Virginia, Maryland, and Delaware. An onshore flow along the eastern Gulf Coast may also trigger thunderstorms along the southern tips of Mississippi, Alabama, and along the Florida panhandle. .
Temperatures in the Lower 48 states Tuesday have ranged from a morning low of 19 degrees at Lakeview AWS, Ore. to a high of 91 degrees at Vero Beach, Fla.