At least nine deaths have been blamed on Lee.
Hundreds of thousands of people have been forced to leave their homes in the Northeast, as the worst flooding since Agnes in 1972 is under way along the Susquehanna River in Pennsylvania and New York. Levees along the swollen river could be breached.
Pennsylvania is under a Level 1 flood emergency, the highest level possible.
The catastrophic flooding taking place is the result of Lee's remnants. Many of the affected areas were just starting to get cleaned up after Irene hit two weeks ago.
Buildings Being Engulfed in Flood Waters
Thousands of homes and businesses are flooded from Maryland into eastern Pennsylvania and central New York. Streets in downtown areas have been transformed into raging rivers, as show in this video from Ellicot City, Md., Wednesday.
In the Hershey area of Pennsylvania, a Pizza Hut and McDonald's were almost completely submerged in flood waters Wednesday.
These photos and videos show just how bad the situation has been.
Pizza Hut under water in Hershey, Pa. (TwitPic from @ChristyFromPA)
Amusement Parks and Zoos Flooded
The flood waters rose too quickly at ZooAmerica for some animals to be evacuated. Two bison at ZooAmerica could not be rescued and were euthanized. Reports say there were other animals that didn't make it.
Knoebels Amusement Resort in Elysburg, Pa., was also flooded Wednesday.
Flooded Hersheypark with a view of roller coasters Storm Runner & Trail Blazer. (Facebook photo from Britt Eisenhauer)
Closures of Major Highways and Interstates
Sections of major highways and interstates have been closed due to river flooding.
Portions of Interstates 80 and 81, the Pennsylvania Turnpike, the Schuylkill Expressway, which runs through Philadelphia, and Route 322 are closed. Parts of the Pennsylvania Turnpike and the Schuylkill Expressway have already taken on water.
Route 322 is a major artery through Pennsylvania connecting Erie to Philadelphia. If 322 remains closed into the weekend, that could prevent thousands of college football fans from making it in to State College, Pa., for the Penn State vs. Alabama game Saturday.
Flooding along Interstate 80 W near Buckhorn, Pa. (from WNEP-TV via Facebook)
Rivers Rising Past Record Levels
Rivers are rising near or past record levels from eastern Pennsylvania into central New York, rivaling or surpassing those of Agnes in 1972. Downtown Harrisburg will be flooded. Levees could be breached along the Susquehanna River.
AccuWeather.com Expert Senior Meteorologist Alex Sosnowski has details on the disastrous river flooding situation the Northeast is facing.
What We're Covering on AccuWeather.com:
Following a blustery and chilly weekend, temperatures will once again take a tumble across the northeastern United States during the first half of this week.
Several storms will bring periods of rain and gusty winds to the west coast of the United States this week, and Southern California will not be excluded from rainfall this time.
A strengthening tropical cyclone will unleash heavy rain and strong winds on areas from western Myanmar to northeast India and Bangladesh this week.
Flooding downpours and thunderstorms will target a part of the central United States at midweek.
Dry weather set to dominate the southern United States into November will only worsen the already extreme drought conditions.
The changing of the seasons will bring beneficial rainfall to northern Brazil, a region that has experienced severe drought over the past several years.
Ishpemig, MI (1929)
27" of snow.
Early season snowstorm brings 7-14 inches to many locations. (13 inches at West Yellowstone).
Oceanside, CA (1999)
A 50' boat missed the harbor due to a wall of dense fog.