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The number of reported dust storms (1995–2017) in the United States (as listed in the National Weather Service storm database) by (a) year, (b) month, (c) state, (d) hour of the day of initial storm observation, (e) observed duration, and (f) hour of the day with ongoing storm. Due to reporting errors or biases, the number of storms reported to the NWS may not represent the true number of dust storms that occurred in the United States during the study period.
