National Weather Service issued the alert at 2:20 p.m.
The warning will take effect late Friday evening and will last until Saturday evening throughout most of D.C., Maryland and Virginia.
The hike will be led by a naturalist and will take place Saturday, June 27, beginning at 9 a.m. from the West parking lot at Scott's Run.
Storms could bring the risk of damaging winds, flash flooding and even hail to the area.
The film hopes to inspire viewers to experience national parks.
Earth Day is this Tuesday, April 22. Here's some ways you can help the earth any day.
Disneynature will make a donation to the National Park Foundation for each ticket sold during opening week.
Pump up your tires and lube your chain - time to spin away those polar vortex pounds.
A mile might not seem like much to travel to get food in your town, but for Bears it can be an arduous journey.
The EPA ranked the top 25 metropolitan areas with the most Energy Star certified buildings.
Here's a great way to start a small garden at home.
Inspire your children to love and respect the earth by being environmentally-friendly.
Which cub scout featured in Disneynature's "Bears" are you more like?
Disneynature's upcoming film "Bears" will teach you a lot about the animals, but here's a good start.
Will your town go dark this Saturday, March 29?
Go green, save green. Here's some tips to get active and creative in everyday life.
Buying organic can often be costly. Here are some clever ways to eat healthy without pinching pennies.
Want to make a real difference in the world? Consider one of these seven "green" careers that help protect -- and improve -- our planet. Provided by Jobs at AOL.
Elly Doyle Park Service Awards "recognize volunteers who make outstanding contributions of time and talent to the Fairfax County park system."
Brood II cicadas, not seen since 1996, will emerge in the mid-Atlantic region starting in May.
Cold temperatures in late March delay the peak blooms around the Washington, DC Tidal Basin.
Tysons Corner accidents past and future aren't the fault of bicyclists, pedestrians or motorists — thetysonscorner.com ventures it's instead a Fairfax County planning issue.
Users can now walk or ride on Vienna trail from 5 a.m. to 9 p.m.; Fairfax Advocates for Better Bicycling will be giving out free lights this week.