We still don't know why tornados happen, but we're getting closer to finding answers — just as the Trump administration ...

The weather service expects a slight chance of scattered severe thunderstorms for much of the Philadelphia area, with the main threat coming from wind. The region, however, is under a moderate flash ...

It comes less than a week before the Senate Commerce, Science and Transportation Committee takes up the confirmation of Neil ...

The weather service issued an air quality alert, in effect from 11 a.m. to 11 p.m. Wednesday, warning of elevated pollution ...

The weather service issued an air quality alert, in effect from 11 a.m. to 11 p.m. Wednesday, warning of elevated pollution ...

If you are in a boat at sea at the time of a tsunami warning, you should go out to sea to a safe depth, the Department of ...

Late Friday afternoon, the mercury at Philadelphia International Airport hit a scorching 98 degrees — beating the all-time ...

The SSMIS instruments are part of three weather satellites that are in low-Earth orbit and are maintained by NOAA in cooperation with the Department of Defense. They provide critical weather ...

After announcing it would lose access to key weather satellite data, NOAA will retain access, the agency said in a statement.

The U.S. Department of Defense will now continue sharing key data collected by three weather satellites that help forecasters track hurricanes. Meteorologists and scientists had warned of risks to ...

The decision was made after the National Weather Service reported the local heat index could range from 105 to 109 degrees.

After that disaster, in 1949 the United States established the Pacific Tsunami Warning Center (PTWC), the first of its kind, ...