Chance Hayes, the Warning Coordination Meteorologist with the National Weather Service in Wichita, will be the guest speaker Saturday at the annual meeting of the Marion County Conservation District in Marion.

Hayes has been with the Wichita office since 1995. He was the leading contributor to the national implementation of increasing the minimum hail size for a severe thunderstorm warning from three-fourths inch to one inch in diameter.

Hayes conducts storm-spotter training sessions for the National Weather Service. He received his degree in meteorology from the University of Oklahoma and is past area vice president for the South Central Kansas Emergency Management Association.