Chinese state media say a flash flood has swept through a campsite in north China, killing several people and leaving others missing.

We bust out the calculators and break down how fast each version of The Flash can run, and present the final physics-defying top speed.

Pakistan's Khyber Pakhtunkhwa province faces catastrophic devastation from recent flash floods, with estimates suggesting up to 1,000 fatalities. Villages have been erased from the map, and many families remain unaccounted for.

Be cautious, especially at night when visibility is limited. Remember, 6 inches of water will reach the bottom of most passenger cars, causing loss of control or possible stalling. Two feet of moving water can carry away most vehicles, including SUVs and pickup trucks.

D C's Flash is unbelievably fast, leaving even Superman in his dust. Flash is so fast that he can be in multiple places at once and even run back in time. However, despite being the Fastest Man Alive, there's one limit that Flash still has to surpass, and even DC admits it.

Flash flooding, gusty winds and hail pose a risk to those in the Midwest, as strong storms could hit the area this weekend.