The numbers of many tropical birds are plummeting, and now it has been shown that heat extremes intensified by global warming ...

In the Southwest, cities including Las Vegas and Phoenix are under extreme heat warnings, with temperatures expected to climb ...

On Sunday at 10:42 p.m. the NWS Hanford CA released an updated extreme heat warning in effect until Tuesday at 5 a.m. The ...

Environment Canada issued a heat warning for eastern Ontario and western Quebec as temperatures are expected to remain in the ...

Tropical bird populations have plummeted not only due to deforestation but also extreme heat attributable to climate change, ...

An extreme heat warning for the Las Vegas Valley has been issued for Tuesday, and Clark County has activated cooling stations ...

An Extreme Heat Warning remains in effect for central and southwestern Arizona through 8 p.m. Tuesday. For the Grand Canyon ...

At 1:40 a.m. on Monday, the NWS Las Vegas NV released an updated extreme heat warning valid from 10 a.m. until Tuesday 8 p.m.

On Sunday at 1:11 p.m. an extreme heat warning was issued by the National Weather Service in effect until Tuesday at 10 p.m.

Learn more about the latest Phoenix area weather forecast and conditions with Most Accurate Forecast from ABC15.

An extreme heat warning for Portland is issued by NWS, expecting temperatures up to 105 degrees. The public is advised to ...

The National Weather Service issued an extreme heat watch at 11:35 p.m. on Sunday valid for Tuesday between 11 a.m. and 8 p.m ...