Tornado alley. Click on the image to view the large version. The middle part of the United States is an area that has many tornadoes, particularly in the spring. This area is known as tornado alley. The reason is because it is an area where large cold air masses and large warm air masses collide. When these air masses crash into each other, it can cause thunderstorms and they can create tornadoes.
Strip malls are usually comprised of a series of retail stores whose average size approximates about 1,000 square feet each. As such, most strip malls total less than 20,000 square feet in size. They typically have good visibility due to being generally located on the perimeters of densely populated neighborhoods, heavily trafficked commercial streets that have easy access, or on or near corners.
The original big-box Walmart store is now called a Discount Store, and the company has been closing these stores or converting them to Supercenters for at least the last 5 years. In 2010, the company had 810 Discount Store; the number has shrunk to 508 in 2014.The average size is 105,000 square feet.he stores are open for 11 or 12 hours a day with additional hours for business members. The gas station/convenience store is the sixth format, and a company executive has said that Walmart has no plans to roll-out the format further.