Rain and thunderstorms are set to dampen Earth Day events across portions of the United States on Tuesday.
In Philadelphia, Greensgrow Farms is sponsoring a neighborhood greening event that participants will help plant flowers in various locations around the city. While a couple of showers and thunderstorms are forecast, much of the event -- which is scheduled from 10 a.m. to 3 p.m. EDT Tuesday -- will be rain-free.
"The wet weather should hold off in Philadelphia until 3 or 4 p.m. Tuesday," AccuWeather Senior Meteorologist John Gresiak said.
Holland America Line employee Danielle Stoeck picks Japanese Knotweed, an invasive species, during Seattle Cruise Industry Employee Volunteer Day, on Tuesday, April 23, 2013, at Golden Gardens Park in Seattle. (Stephen Brashear/AP Images for Cruise Line International Association)
Similar weather is expected in Washington, D.C., where the National Zoo is sponsoring some events.
A cold front will be responsible for the thundery rain as it advances from the Appalachians toward the East Coast Tuesday afternoon and evening.
Events at the Atlanta Botanical Garden will be impacted by some showers and thunderstorms along the same cold front.
While there will be some rain and thunderstorms in the East, severe weather is not forecast. However, if you hear thunder during these events, seek shelter. Remember to pack an umbrella or poncho.
Allow extra travel time, since showers and storms may reduce visibility and create slick roads.
Meanwhile, a chilly storm will advance into the Northwest on Tuesday, ushering in plenty of clouds, rain and gusty winds.
Some Seattle area schools are planning to take classes outdoors at the Seward Park Environmental and Audubon Center to work on a restoration project in the park.
"It will be mostly cloudy and cool with showers, but they'll be most numerous in the morning," AccuWeather Senior Meteorologist and Western Expert Ken Clark said.
Farther south, residents in the San Francisco Bay area will help revive Lafayette Square Park in Oakland, Calif.
"Windy and cool weather will impact those in the Bay area," Clark said. "Clouds along with a shower or two will be around in the morning, but sunshine will return by the afternoon."
While events will occur throughout the week across the country, many are planned for this upcoming weekend. Events are scheduled near Philadelphia, Baton Rouge, La., and Yosemite National Park on Saturday. Another pair of storms across the West and East may dampen these events.
After storms clipped Chicagoland early Sunday, drier air will filter into the area for the rest of the week.
A brief warmup is in store for residents of the Northeast this weekend before more fall-like conditions return.
The weekend will conclude with a couple of showers throughout the area on Sunday, but more favorable conditions will mark the start of the workweek in Detroit.
In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around New York City.
Drier and more tranquil weather will move into the Atlanta area for the upcoming week.
The peak of hurricane season, among other things, arrives in the fall.
New England (1938)
New England hurricane smashed across Long Island, then bisected New England. Enormous shore damage, extensive forest losses, devastating floods, $306 million damage, 600 plus dead. The storm was the fastest moving of any recorded hurricane - 58 mph. Providence, R.I. under 14 feet of water. Connecticut Rive rose to 35.4 feet at at Hartford, CT -- second highest stage ever.
Hurricane Beulah spawned 115 tornadoes in Texas -- $5,000 damage, 28 injuries (Sept 20- 21, 1967).
West Yellowstone Montana (1983)
Minus 6 degrees (F) (Record for month is minus 9 degrees in continental U.S. This was also recorded at West Yellowstone).