Stay up to date with all weather conditions affecting transportation in the United States

Active weather will move from the central United States to the Northeast. Isolated strong to severe thunderstorms may occur across parts of the lower/mid Mississippi Valley into the Ohio Valley. Snow may cause hazardous travel in the the Interior Northeast. A cold front will bring rough surf, winds, rain, and mountain snow from the Pacific Northwest into the Northern Rockies through Thursday. Active Advisories: Washington, Oregon, Idaho, Montana, Maine

A complex storm in the Central U.S. will produce widespread impacts. Severe storms will be possible in Oklahoma. Heavy snow will continue in the Central Rockies, with areas of snow in the Mississippi Valley and Great Lakes. A new Pacific storm will bring gusty winds, rain, and mountain snow to the Northwest. Active Advisories: Washington, Oregon, Colorado, North Dakota, Minnesota, Iowa, Wisconsin, Illinois, Michigan

Unsettled weather will persist through today in the Pacific Northwest and Northern Rockies. Mixed precipitation is expected in the Northern Plains, and blustery conditions in the southern and central Plains into the Ohio Valley. Above normal temperatures will spread west to east across the contiguous U.S. this week. Active Advisories: Washington, Oregon, Idaho, Montana, North Dakota, Minnesota

Unsettled conditions will continue from the Pacific Northwest and California into the Sierra and Rocky mountains with locally heavy rain, a few thunderstorms, mountain snow, gusty to high winds, and possible coastal and burn-scar flooding. Above normal temperatures will spread west to east across the contiguous U.S. this week. Temperatures of 10 to 30 degrees above normal are likely. Active Advisories: Washington, Oregon, California

Unsettled weather will continue across the Pacific Northwest and into the northern Rockies this week as several fronts sweep gusty to high winds, heavy low elevation rain and mountain snow through the region. Above normal temperatures will spread east across the contiguous U.S. this week from west to east. Temperatures 15 degrees above normal are likely over the Central states. Active Advisories: California

The center of Eta will pass just offshore of the coast of South and North Carolina through Friday morning. Widespread minor to moderate and scattered major river flooding is occurring in the wake of Eta. A series of storm systems will continue to impact the Western U.S. into next week with damaging high winds, heavy coastal rain and heavy mountain snow. Active Advisories: Washington, Oregon, California, Idaho, Nevada, Montana, Wyoming, Utah, Colorado

Tropical Storm Eta is forecast to move inland over the northern portion of the Florida peninsula today. Tropical-storm-force winds, life-threatening storm surge and heavy rainfall are expected while tornadoes and flooding are possible. Heavy rain may lead to flash flooding through Thursday from the southern Appalachians into the Mid-Atlantic states where a front is meeting Eta's moisture. Meanwhile, the Northwest is bracing for more wintry weather.  Active Advisories: Washington, Oregon, Idaho, Wyoming, Virginia, North Carolina, South Carolina, Georgia, Florida

Tropical Storm Eta will move close to but offshore of the southwest coast of Florida Wednesday and move inland over the northern portion of the Florida peninsula on Thursday. Eta will bring Tropical-storm-force winds, Life-threatening storm surge and heavy rainfall with a potential for flooding. Meanwhile, the remnants of Winter Strom Constance are lingering in the U.S. West. Further Northeast, heavy rain may lead to flash flooding Wednesday from the southern Appalachians into the Mid-Atlantic. Active Advisories: Oregon, Idaho, Montana, Wyoming, Florida

Eta will slowly shift north across the eastern Gulf of Mexico through much of the rest of this week, and could approach the Florida Gulf Coast later this week as a tropical storm, and possibly bring impacts from rain, wind, and storm surge. Meanwhile, Winter Storm Constance is bringing a swath of freezing rain and sleet along with a period of heavy snow from eastern Nebraska into northern Wisconsin Tuesday. Active Advisories: Washington, Oregon, Idaho, Montana, Wyoming, South Dakota, Nebraska, Kansas, Minnesota, Iowa, Wisconsin

As the Western Winter Storm System advances east, heavy snow will continue in Montana and the Four Corners region. Meanwhile, Eta is bringing heavy rain, flooding, thunderstorms, strong winds, and storm surge to Florida. Additionally, heavy rain and severe thunderstorms are expected in the Upper Mississippi Valley to the Central Plains. Active Advisories: Washington, Idaho, Montana, Utah, Arizona, Colorado, New Mexico, Nebraska, Florida