lightning

A flash of lighting lights up the sky above the "Baie des Anges" in Nice, southeastern France.

Valery Hache/AFP

A flash of lighting lights up the sky above the “Baie des Anges” in Nice, southeastern France

Lightning strikes over buildings during heavy rainfall in Kunshan, Jiangsu province, September 2, 2014.

Stringer/Reuters

Lightning strikes over buildings during heavy rainfall in Kunshan, Jiangsu province. 

A monsoon lightning storm strikes over the Mandalay Bay Resorts and Casino and Luxor hotels in Las Vegas, Nevada late July 7, 2014. Monsoon storms are forecast for the the rest of the week in the Nevada and Arizona states.  The Luxor Sky Beam can be seen shining into the sky from the top of the hotel's pyramid structure.

Gene Blevins/Reuters

A monsoon lightning storm strikes over the Mandalay Bay Resorts and Casino in Las Vegas, Nevada. Monsoon storms are forecast for the rest of the week in Nevada and neighbouring Arizona.

A streak of lightning is seen above the skyline of Nanning during a thunderstorm...A streak of lightning is seen above the skyline of Nanning during a thunderstorm in Guangxi Zhuang Autonomous region June 5, 2014. Picture taken June 5, 2014. REUTERS/Stringer (CHINA - Tags: ENVIRONMENT CITYSCAPE) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA

China Stinger Network/Reuters

A streak of lightning is seen above the skyline of Nanning during a thunderstorm in Guangxi Zhuang, China

Lightning strikes during an evening thunderstorm on May 29, 2014 in the Haitian capital Port-au-Prince.

Hector Retmal/AFP

Lightning strikes in Port-au-Prince, the capital of Haiti

TOPSHOTS A long exposure shows lightning...TOPSHOTS A long exposure shows lightning in the sky with reflection in the water on the floor of a building under construction during an evening thunderstorm on May 19, 2014 in the Haitian capital Port-au-Prince.   AFP PHOTO/Hector RETAMALHECTOR RETAMAL/AFP/Getty Images

Hector Retamal/AFP

A thunderstorm in Port-au-Prince, the capital of Haiti, on Tuesday 

Lightning streaks across the sky of Montevideo, over the Legislative Palace -- seat of the Uruguayan Government -- during a thunderstorm early on January 10, 2014.

Mariana Suarez/AFP

Lightning streaks across the sky of Montevideo, over the Legislative Palace, seat of the government in Uruguay, during a thunderstorm

Lightning is seen above buildings during a storm in central Shanghai...Lightning is seen above buildings during a storm in central Shanghai July 31, 2013. REUTERS/Aly Song  (CHINA - Tags: SOCIETY ENVIRONMENT)

Aly Song/Reuters

Lightning is seen above buildings during a storm in central Shanghai on Wednesday evening 

Royal baby...Lightning strikes behind The London Eye in central London which is coloured red, white and blue to mark the birth of a baby boy, at 4.24pm yesterday to the Duke and Duchess of Cambridge at St Mary's Hospital. PRESS ASSOCIATION Photo. Picture date: Tuesday July 23, 2013. Prince William and Kate spent the night at hospital bonding with their new son who was delivered at 4.24pm on Monday weighing 8lb 6oz. See PA story WEATHER Storms. Photo credit should read: Lewis Whyld/PA Wire

Lewis Whyld/PA

Lightning strikes in central London behind the London Eye, which is coloured red, white and blue to mark the birth of a baby boy to the Duke and Duchess of Cambridge at St Mary’s Hospital on Monday 

Lightning strikes above the Mandalay Bay and Luxor casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas...Lightning strikes above the Mandalay Bay (L) and Luxor (C) casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas, Nevada July 20, 2013. REUTERS/Steve Marcus (UNITED STATES - Tags: ENVIRONMENT CITYSCAPE TPX IMAGES OF THE DAY)

Steve Marcus/Reuters

Lightning strikes above the Mandalay Bay and Luxor casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas, Nevada in the US.