A former NTSB director says tree roots may have led to the house blasts, that injured five people on April 21.

Mostly cloudy with a 95% chance for rain and thunderstorms. High temperature around 67F. Dew point will be around 63F with an average humidity of 72%. Winds will be 2 mph from the E. Mostly clear with ...

Spring and tree pollens peak at different times as the year progresses. But they are both spreading northward across the U.S. as May begins. Tree pollen is about to get worse in cities like New York, ...

Cloudy with a 90% chance for rain and thunderstorms. Low temperature around 55F. Dew point will be around 57F with an average humidity of 83%. Winds will be 6 mph from the NW.

AURORA, Colo. (KDVR) — A lightning strike caused an explosive scene in an Aurora neighborhood Sunday night, sending shards of wood flying and damaging nearby homes, according to residents and video ...

WASHINGTON (7News) — If it feels like this spring has been unusually harsh—on your allergies, your yard, and your patience—you’re not imagining it. Across the D.C. and Mid-Atlantic region, trees are ...

The weather is warming up, the birds are chirping, and it feels like the whole city is back outside. Well, back outside and sneezing. If you suffer from seasonal allergies, you may have a hard time ...

ROUGHLY HALF THE PEOPLE IN THE U.S. LIVE IN AREAS WITH UNHEALTHY AIR, SO TREE ALLERGENS ARE IN OUR AIR. FOR SOME PEOPLE, POLLEN FROM ELMS AND ALL THESE TREES OUT THERE CAN CREATE BIG PROBLEMS, EVEN ...

'Tis the season for itchy eyes and runny noses. With spring in full force, pollen counts are rising around the country, leaving those affected by seasonal allergies little reprieve. It's estimated ...