Dermatomes Topic Guide. Dermatomes: Dermatomes are the nerves from the spinal cord that supply sensation (for example, pain, touch, temperature) to the body. A chart maps the different segments of the spinal cord.ermatomes Topic Guide. Dermatomes: Dermatomes are the nerves from the spinal cord that supply sensation (for example, pain, touch, temperature) to the body. A chart maps the different segments of the spinal cord.
Statistics show May was the peak month for tornadoes in Arkansas over a 30-year period. Numbers released Thursday from the National Weather Serviceâs Storm Prediction Center showed May as the month with the greatest number of tornadoes from 1981 to 2010. April came in second and November was third.
Tornado Alley, as that part of the central U.S. has come to be known, reaches across parts of Texas, Oklahoma, Kansas, Missouri, East Nebraska, and West Iowa. In Minnesota, tornadoes have occurred in every month from March through November. The earliest verified tornado in Minnesota occurred on March 18, 1968, north of Truman, and the latest in any year on November 16, 1931, east of Maple Plain. Historically and statistically, June is the month of greatest frequency with July not far behind. May has the third greatest frequency, followed closely by August.