Heavy rain to threaten flooding in south-central US next week

A prolonged period of heavy rainfall will be likely in parts of the South Central states beginning on Memorial Day and continuing through much of next week, heightening the risk of flash flooding. The rainy pattern will come courtesy of a system high in the atmosphere that will become cut off from the main flow of the jet stream. When this happens, unsettled weather can linger for several days in the same general location. Another reason for the…