NEWQUAY, ENGLAND - AUGUST 10: People brave the weather and watch the surfing on the opening day of the 2016 Boardmasters surf and music festival at Fistral Beach in Newquay on August 10, 2016 in Cornwall, England. Since 1981, the Boardmasters surfing competition has been held in Newquay and is now part of a larger five-day surf, skate and music festival becoming a integral part of the continually popular British surf scene growing from humble beginnings, to one of the biggest events on the British surfing calendar. It now attracts professional surfers from across the globe to compete on the Cornish beach that is seen by many as the birthplace of modern British surfing. (Photo by Matt Cardy/Getty Images)

NEWQUAY, ENGLAND - AUGUST 10: People brave the weather on the opening day of the 2016 Boardmasters surf and music festival at Fistral Beach in Newquay on August 10, 2016 in Cornwall, England. Since 1981, the Boardmasters surfing competition has been held in Newquay and is now part of a larger five-day surf, skate and music festival becoming a integral part of the continually popular British surf scene growing from humble beginnings, to one of the biggest events on the British surfing calendar. It now attracts professional surfers from across the globe to compete on the Cornish beach that is seen by many as the birthplace of modern British surfing. (Photo by Matt Cardy/Getty Images)

NEWQUAY, ENGLAND - AUGUST 10: People brave the weather and watch the surfing on the opening day of the 2016 Boardmasters surf and music festival at Fistral Beach in Newquay on August 10, 2016 in Cornwall, England. Since 1981, the Boardmasters surfing competition has been held in Newquay and is now part of a larger five-day surf, skate and music festival becoming a integral part of the continually popular British surf scene growing from humble beginnings, to one of the biggest events on the British surfing calendar. It now attracts professional surfers from across the globe to compete on the Cornish beach that is seen by many as the birthplace of modern British surfing. (Photo by Matt Cardy/Getty Images)

NEWQUAY, ENGLAND - AUGUST 10: People brave the weather and enter the sea on the opening day of the 2016 Boardmasters surf and music festival at Fistral Beach in Newquay on August 10, 2016 in Cornwall, England. Since 1981, the Boardmasters surfing competition has been held in Newquay and is now part of a larger five-day surf, skate and music festival becoming a integral part of the continually popular British surf scene growing from humble beginnings, to one of the biggest events on the British surfing calendar. It now attracts professional surfers from across the globe to compete on the Cornish beach that is seen by many as the birthplace of modern British surfing. (Photo by Matt Cardy/Getty Images)

This August 8, 2016 NASA satellite photo shows Tropical Storm Javier off Mexico. Mexican weather forecasters said Javier was about 90 kilometers (55 miles) southeast of Cabo San Lucas. The storm was packing maximum sustained winds of 85 kilometers per hour with higher gusts, and was expected to dump 10 to 15 centimeters (four to six inches) of rain in western Mexico, said the US National Hurricane Center. / AFP PHOTO / HandoutHANDOUT/AFP/Getty Images

FILE - AUGUST 8: According to reports, Walmart has agreed to buy Jet.com for $3 billion in its bid to take on Amazon. TROY, OH - MAY 11: An employee restocks a shelf in the grocery section of a Wal-Mart Supercenter May 11, 2005 in Troy, Ohio. Wal-Mart, America's largest retailer and the largest company in the world based on revenue, has evolved into a giant economic force for the U.S. economy. With growth, the company continues to weather criticism of low wages, anti-union policies as well as accusations that it has homogenized America's retail economy and driven traditional stores and shops out of business. (Photo by Chris Hondros/Getty Images)

This August 7, 2016 NASA satellite photo shows Tropical Storm Javier off Mexico. Javier, which could strengthen to hurricane status by August 8 afternoon, and is expected to bring heavy rains and high winds to southwestern Mexico in the coming days, US weather forecasters said. The Miami-based National Hurricane Center said Javier was about 250 miles (405 km) southwest of Cabo San Lucas, Mexico. / AFP PHOTO / HandoutHANDOUT/AFP/Getty Images

Copacabana beach stands deserted as a weather front arrives after the Women's road cycling race at the Rio 2016 Olympic Games in Rio de Janeiro on August 7, 2016. / AFP PHOTO / Eric FEFERBERGERIC FEFERBERG/AFP/Getty Images