LONDON, ENGLAND - AUGUST 30: A commuter walks over the Millenium Bridge whilst checking his phone as dawn breaks and the sun rises over the British capital city on August 30, 2016 in London, England. The south east of England has recently seen consistent hot and dry weather with temperatures often exceeding 30 degrees Celsius. The dry weather with good visibility and low wind speeds makes it ideal for hot air balloon flights. (Photo by Chris J Ratcliffe/Getty Images)

CALGARY, AB - AUGUST 28: Ha Na Jang of South Korea tries to keep warm in the cold morning weather on the 3rd tee box during the final round of the Canadian Pacific Women's Open at Priddis Greens Golf and Country Club on August 28, 2016 in Calgary, Canada. (Photo by Todd Korol/Getty Images)

Dark stormclouds are seen over the Manila skyline on August 28, 2016. Cloudy skies with light to moderate rains and isolated thunderstorms are forecast over the Philippine capital due to the southwest monsoon, according to data from the weather bureau. / AFP PHOTO / TED ALJIBETED ALJIBE/AFP/Getty Images

Dark stormclouds are seen over the Manila skyline on August 28, 2016. Cloudy skies with light to moderate rains and isolated thunderstorms are forecast over the Philippine capital due to the southwest monsoon, according to data from the weather bureau. / AFP PHOTO / TED ALJIBETED ALJIBE/AFP/Getty Images

BROOKLYN, MI - AUGUST 27: Trucks are lined up covered on the frontstretch during a weather warning before the NASCAR Camping World Truck Series Careers for Veterans 200 at Michigan International Speedway on August 27, 2016 in Brooklyn, Michigan. (Photo by Robert Laberge/Getty Images)

BROOKLYN, MI - AUGUST 27: Trucks are lined up covered on the frontstretch during a weather warning before the NASCAR Camping World Truck Series Careers for Veterans 200 at Michigan International Speedway on August 27, 2016 in Brooklyn, Michigan. (Photo by Robert Laberge/Getty Images)

BROOKLYN, MI - AUGUST 27: General view of the scoring pylon during a weather warning during the NASCAR Camping World Truck Series Careers for Veterans 200 at Michigan International Speedway on August 27, 2016 in Brooklyn, Michigan. (Photo by Robert Laberge/Getty Images)

BROOKLYN, MI - AUGUST 27: General view of the scoring pylon during a weather warning during the NASCAR Camping World Truck Series Careers for Veterans 200 at Michigan International Speedway on August 27, 2016 in Brooklyn, Michigan. (Photo by Robert Laberge/Getty Images)