Harvey will be remembered and studied for years to come. The storm has already dropped a historic amount of rain, but more is still to come.

It is the first Category 4 hurricane to make landfall in Texas since Hurricane Carla back in 1961. Over the span of three days, the National Weather Service team in Houston issued over 130 tornado warnings.

Currently, rainfall totals are nearing 50 inches of rain in some areas of Houston. In fact, Harvey has dropped more rain in the continental United States than any other tropical storm on record. If that numbers reaches over 52 inches, it would be an all-time high, beating rainfall totals that fell in Hawaii from a tropical storm in 1950.

All of this is hard to imagine, but imagine one acre of land. If just one inch of rain fell on that acre, it would be equal to 27,000 gallons of water.

HOUSTON, TX - AUGUST 29: Matthew Koser waits for rescue atop his car after it was flooded by heavy rains from Hurricane Harvey August 29, 2017 in the Bear Creek neighborhood of west Houston, Texas. Koser was helping to look for important papers and heirlooms inside his grandfather's house. The neighborhood flooded after water was released from nearby Addicks Reservoir. (Photo by Erich Schlegel/Getty Images)

That's a lot of water, but now imagine that same piece of land only with 30 inches of rain. If that happened, you would be dealing with over 814,000 gallons of water on just one acre.

The land that makes up Houston is roughly over 1 million acres and is currently dealing with 926.2 billion gallons of water. Unfathomable to think a city like Houston could be covered in water, but Harvey has brought more than we expected.

By the end of Wednesday, Harvey will have dropped enough rain in southeast Texas to fill all NFL and Division 1 college football stadiums more than 100 times over.

The impact felt by Harvey has already been felt across America, but the event is far from over.