Hurricanes are ranked in terms of strength by two key measurements; their maximum sustained wind speed, and their minimum ...

Light showers, changing winds, and very high UV levels are expected across Hawaiʻi this week, with stable conditions returning by Sunday.

Extremely high humidity is expected to make it feel a lot hotter Wednesday, with a maximum heat index of 105 for North Texas. Lower humidity Thursday and Friday will help bring the “feels like” ...

Air quality in the Chicago area remains poor for the third straight day in a row, with an air quality alert in effect through Wednesday night, along with extremely muggy conditions and the chance for ...

Temperatures could exceed 38C in parts of Tenerife, Lanzarote and Gran Canaria as the extreme heat is accompanied by dust ...

Structure protection measures held for a second day July 14 as the fire continued its progression into the Butler Flat and ...

Abnormally dry, hot conditions near the Grand Canyon's North Rim allowed the Dragon Bravo Fire to grow rapidly.

Wildfires burning at or near the Grand Canyon's North Rim are still raging as strong winds, high heat and low humidity ...

A wildfire in western Colorado more than quadrupled in size overnight, quickly becoming the largest blaze burning in the ...