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Closely Watching the Tropics; Heat and Fire Weather Concerns for the West

An increasing threats of heavy rain, strong winds, rip currents and storm surge are developing from tropical system in the western Gulf of Mexico. Residents along and near the western and northern Gulf are urged to follow the latest forecast developments. Meanwhile, dangerous heat and elevated to critical fire weather conditions continue for portions of the West and Southwest. Read More >

May 9-11, 2015 featured a powerful spring low pressure system the wreaked havoc across South Dakota. Western and central parts of the state experienced heavy snow, eastern parts severe hail, and most everyone received very heavy and beneficial rainfall that put a dent in the drought. A few records were even set on May 10th for daily rainfall: Watertown with 1.38" (1.27" in 1936), Mobridge with 2.48" (0.86" in 1956), and Pierre with 1.52" (0.92" in 2010). Pierre also tied a record for most snow on the 10th - a trace. The same area that experienced thunderstorms and hail on the 10th observed a period of snow the very next morning! Below are several images that depict more of the details.

An EF-2 tornado also hit Delmont, SD at 10:45 am on Mother's Day, May 10th. Find much more information from the NWS office in Sioux Falls here