Kansas Geography

Kansas is bordered by Nebraska on the north; Missouri on the east; Oklahoma on the south; and Colorado on the west. The state is divided up into 105 counties with 628 cities. It is located equidistant from the Pacific and the Atlantic oceans. The geographic center of the 48 contiguous states is located in Smith County near Lebanon. The geodetic center of North America was located in Osborne County until 1983. This spot was until then used as the central reference point for all maps of North America produced by the U.S. government. The geographic center of Kansas is located in Barton County. Kansas is also one of the six states located on the Frontier Strip and one of several within Tornado Alley.

The western two thirds of the state, lying in the great central plain of the United States, has a generally flat or undulating surface, and on a large scale appears almost perfectly flat.[8] However, the eastern third is more hilly and forested. The land displays a gradual slope up from east to west; its altitude above the sea ranges from 684 feet (208 m) along the Verdigris River at Coffeyville in Montgomery County, to 4039 feet (1,231 m) at Mount Sunflower, one half mile from the Colorado border, in Wallace County.

The Missouri River forms nearly 75 miles (120 km) of the state's northeastern boundary. The Kansas River (locally known as the Kaw), formed by the junction of the Smoky Hill and Republican rivers at appropriately-named Junction City, joins the Missouri at Kansas City, after a course of 170 miles (274 km) across the northeastern part of the state. The Arkansas River, rising in Colorado, flows with a bending course for nearly 500 miles (800 km) across the western and southern parts of the state. It forms, with its tributaries (the Little Arkansas (pronounced Ar-Kansas), Ninnescah, Walnut, Cow Creek, Cimarron, Verdigris, and the Neosho), the southern drainage system of the state. Other important rivers are the Saline and Solomon, tributaries of the Smoky Hill River; the Big Blue, Delaware, and Wakarusa, which flow into the Kansas River; and the Marais des Cygnes, a tributary of the Missouri River.

Areas under the protection of the National Park Service include:

• Brown v. Board Of Education National Historic Site in Topeka
• California National Historic Trail
• Fort Larned National Historic Site in Larned
• Fort Scott National Historic Site
• Lewis and Clark National Historic Trail
• Nicodemus National Historic Site at Nicodemus
• Oregon National Historic Trail
• Pony Express National Historic Trail
• Santa Fe National Historic Trail
• Tallgrass Prairie National Preserve near Strong City

Kansas contains three climate types, according to the Köppen climate classification: humid continental, semiarid steppe, and humid subtropical. The eastern two-thirds of the state has a humid continental climate, with cold winters and hot summers. Most of the precipitation falls in the summer and spring. The western third of the state has a semiarid steppe climate. Summers are hot, often very hot. Winters are cold in the northwest and cool to mild in the southwest. Also, the western region is semiarid, receiving an average of only about 16 inches (40 cm) of precipitation per year. Chinook winds in the winter can warm western Kansas all the way into the 80 degree Fahrenheit (25 °C) range. The far south-central and southeastern reaches of the state have a humid subtropical climate, with long, hot summers, short, mild winters, and much more precipitation than the rest of the state.

Precipitation ranges from about 46 inches (1200 mm) annually in the southeast of the state, to about 16 inches (400 mm) in the southwest. Snowfall ranges from around 5 inches (130 mm) in the fringes of the south, to 35 inches (900 mm) in the far northwest. Frost-free days range from more than 200 days in the south, to 130 days in the northwest. Thus, Kansas is the 9th or 10th sunniest state in the country, depending on the source. Western Kansas is as sunny as parts of California and Texas.

In spite of the frequent sunshine throughout much of the state, the state is also vulnerable to strong thunderstorms, especially in the spring. Many of these storms become Supercell thunderstorms. These can spawn tornadoes, often of F3 strength or higher. According to statistics from the National Climatic Data Center , Kansas has reported more tornadoes (for the period 1st January 1950 through to 31st October 2006) than any state except for Texas - marginally even more than Oklahoma . It has also - along with Alabama - reported more F5 tornadoes than any other state. These are the most powerful of all tornadoes. Kansas averages over 50 tornadoes annually.[9]

Spring River, Kansas

Storm clouds in northeastern Kansas