The three large aircraft will be stationed in Fresno, California.
Currently, the activation is scheduled to last one month but can be changed.
Lt. Col. Todd Davis of the 187th Airlift Squadron in Wyoming says the C-130 will fly as low as 150 feet above the ground while on wildfire missions.
The planes can discharge up to 3,000 gallons of water or fire retardant in less than 5 seconds and cover an area one-quarter of a mile long by 100 feet wide. Once the load is discharged, it can be refilled in less than 12 minutes.