U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment. (U.S. Air Force photo by Airman 1st Class Sean Carnes)

U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Army aircrew assigned to 2nd Battalion, 151st Brigade, South Carolina National Guard, conduct aerial damage assessment via a UH-60 Blackhawk over Joint Base Charleston, S.C., after Hurricane Matthew swept the area Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Maj. Abbillyn Johnson, left, the commander of the 628th Logistics Readiness Squadron, and Lt. Col. Matthew Brennan, the commander of the 628th Civil Engineer Squadron, raise the base flag over Joint Base Charleston, S.C., after Hurricane Matthew swept the area Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Lt. Col. Matthew Brennan, left, the commander of the 628th Civil Engineer Squadron, and Maj. Abbillyn Johnson, the commander of the 628th Logistics Readiness Squadron, raise the base flag over Joint Base Charleston, S.C., after Hurricane Matthew swept the area Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Anthony Tressel, radio frequency transmission technician with the 628th Communications Squadron, inspects a ultra high frequency (UHF) antenna for wind damage caused by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 10, 2016. Joint Base personnel are working diligently to return the Joint Base to full operational status after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron remove fallen trees on Hunley Park-Air Base housing done by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron use a front-end loader to remove fallen trees on Hunley Park-Air Base housing done by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Army Chief Warrant Officer 4 Sean Reynolds, a pilot assigned to 2nd Battalion, 151st Brigade, South Carolina National Guard, prepares to fly a UH-60 Blackhawk over Joint Base Charleston, S.C., for an aerial damage assessment after Hurricane Matthew swept the area Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

From left, U.S. Army Sgt. Dustin Keenan, a flight medic assigned to 2nd Battalion, 151st Brigade, South Carolina National Guard, Kevin Hollister, South Carolina Helicopter Aquatic Rescue Team, Joel Koricick, and Scott Grahn, both with the Pennsylvania Helicopter Aquatic Rescue Team, prepare to conduct a damage assessment flight onboard an Army UH-60 Blackhawk over Joint Base Charleston, S.C., after Hurricane Matthew swept the area Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron remove fallen trees on Hunley Park-Air Base housing done by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron remove fallen trees on Hunley Park-Air Base housing done by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airmen Jasmine Jamison and Rachel Mayner, patrol officers with the 628th Security Forces Squadron guard the gates after Hurricane Matthew swept the area on Joint Base Charleston - Naval Weapons Station, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Jasmine Jamison, a patrol officer with the 628th Security Forces Squadron, checks the identification of those entering the gates after Hurricane Matthew swept the area on Joint Base Charleston - Naval Weapons Station, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

Charlie the Alligator basks in the sun after Hurricane Matthew swept the area on Joint Base Charleston - Naval Weapons Station, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Explosive Ordnance Disposal technicians work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Matthew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach, local law enforcement and Air Force personnel worked together to properly dispose of the hazards.

U.S. Air Force Senior Airman Jasmine Jamison, a patrol officer with the 628th Security Forces Squadron, checks the identification of those entering the gates after Hurricane Matthew swept the area on Joint Base Charleston - Naval Weapons Station, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Jasmine Jamison, a patrol officer with the 628th Security Forces Squadron, checks the identification of those entering the gates after Hurricane Matthew swept the area on Joint Base Charleston - Naval Weapons Station, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron remove debris on Hunley Park-Air Base housing done by Hurricane Matthew on Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Explosive Ordnance Disposal technicians work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Matthew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach, local law enforcement and Air Force personnel worked together to properly dispose of the hazards.

U.S. Air Force Senior Airman Jesse Steinberg, heavy equipment operators with the 628th Civil Engineer Squadron, removes a fallen tree after Hurricane Mathew swept through Hunley Park-Air Base housing, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Master Sgt. Chris Moffett and Senior Airman Jesse Steinberg, heavy equipment operators with the 628th Civil Engineer Squadron, tear down broken tree limbs after Hurricane Mathew swept through Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airman Jesse Steinberg, heavy equipment operators with the 628th Civil Engineer Squadron, removes a fallen tree after Hurricane Mathew swept through Hunley Park-Air Base housing, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Explosive Ordnance Disposal technicians work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Matthew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach, local law enforcement and Air Force personnel worked together to properly dispose of the hazards.

U.S. Air Force Explosive Ordnance Disposal technicians work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Mathew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach local law enforcement and the Air Force worked together to properly dispose of the hazards.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron, remove a fallen tree after Hurricane Mathew swept through Hunley Park-Air Base housing, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Explosive Ordnance Disposal technicians work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Mathew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach local law enforcement and the Air Force worked together to properly dispose of the hazards.

U.S. Air Force Explosive Ordnance Disposal technicians work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Matthew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach, local law enforcement and Air Force personnel worked together to properly dispose of the hazards.

U.S. Air Force Senior Airman Michael Schuffer, an Explosive Ordnance Disposal technician with the 628th Civil Engineer squadron, work with local law enforcement bomb squad members to transport Civil War cannonballs washed ashore from Hurricane Matthew to a safe location at Folly Beach, S.C., Oct. 9, 2016. After the discovery of ordnance on the beach, local law enforcement and Air Force personnel worked together to properly dispose of the hazards.

U.S. Air Force Master Sgt. Chris Moffett, heavy equipment operator with the 628th Civil Engineer Squadron, tears down a broken tree limb after Hurricane Mathew swept through Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force civil engineers with the 628th Civil Engineer Squadron, tear down broken tree limbs after Hurricane Mathew swept through Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Master Sgt. Chris Moffett, heavy equipment operator with the 628th Civil Engineer Squadron, tears down a broken tree limb after Hurricane Mathew swept through Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Senior Airmen Robert Aguilar and Casey Cooper, electrician linemen with the 628th Civil Engineer Squadron, repair electrical lines after Hurricane Mathew swept through Joint Base Charleston, S.C., Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.

U.S. Air Force Lt. Col. Matthew Brennan, left, the commander of the 628th Civil Engineer Squadron, and Maj. Abbillyn Johnson, the commander of the 628th Logistics Readiness Squadron, raise the base flag over Joint Base Charleston, S.C., after Hurricane Matthew swept the area Oct. 9, 2016. All non-essential personnel evacuated the area, but returned after disaster response coordinators assessed damage and verified a safe operating environment.