Joint Base Charleston prepares for Hurricane Matthew

U.S. Navy Petty Officer 2nd Class William Roberts, a harbor patrol coxswain with the 628th Security Forces Squadron, prepares to move and store a 628th Security Forces patrol boat ahead of Hurricane Matthew at Joint Base Charleston - Naval Weapons Station, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area but will return after disaster response coordinators assess damage and verify a safe operating environment.   (U.S. Air Force photo by Senior Airman Nicholas Byers)

U.S. Navy Petty Officer 2nd Class William Roberts, a harbor patrol coxswain with the 628th Security Forces Squadron, prepares to move and store a 628th Security Forces patrol boat ahead of Hurricane Matthew at Joint Base Charleston - Naval Weapons Station, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Senior Airman Nicholas Byers)

U.S. Air Force Senior Airman Jaylen Wilkins, an electrician assigned to the 628th Civil Engineer Squadron, prepares to fell a dead tree ahead of Hurricane Matthew at Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Tech. Sgt. Barry Loo)

U.S. Air Force Senior Airman Jaylen Wilkins, an electrician assigned to the 628th Civil Engineer Squadron, prepares to fell a dead tree ahead of Hurricane Matthew at Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Tech. Sgt. Barry Loo)

U.S. Air Force Col. Robert Lyman, Joint Base Charleston commander, discusses current and ongoing operations at the Emergency Operations Center during Hurricane Condition I for Hurricane Matthew on Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Senior Airman Nicholas Byers)

U.S. Air Force Col. Robert Lyman, Joint Base Charleston commander, discusses current and ongoing operations at the Emergency Operations Center during Hurricane Condition I for Hurricane Matthew on Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Senior Airman Nicholas Byers)

U.S. Air Force firefighters assigned to the 628th Civil Engineer Squadron move a trailer of training supplies to a more secure location in preparation of Hurricane Matthew at Joint Base Charleston, S.C., Oct. 6, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Tech. Sgt. Barry Loo)

U.S. Air Force firefighters assigned to the 628th Civil Engineer Squadron move a trailer of training supplies to a more secure location in preparation of Hurricane Matthew at Joint Base Charleston, S.C., Oct. 6, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Tech. Sgt. Barry Loo)

Mission essential personnel discuss ongoing operations at the Emergency Operations Center during Hurricane Condition I for Hurricane Matthew on Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Senior Airman Nicholas Byers)

Mission essential personnel discuss ongoing operations at the Emergency Operations Center during Hurricane Condition I for Hurricane Matthew on Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Senior Airman Nicholas Byers)

JOINT BASE CHARLESTON, SOUTH CAROLINA --