Helicopter
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 2
Situational Awareness
ATC Issue All Types; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance
Airspace Structure; Human Factors
Aircraft X was on course west bound at 3;000 to stay out of the weather. The previous sector asked if I could work Aircraft X at 3;000 long before they were visible on my scope to which I answered affirmative. Approximately 30 minutes later I was alerted to a low altitude alert as Aircraft X entered a 3;400 MVA [Minimum Vectoring Altitude] at 3;000. I issued a low altitude alert and climbed Aircraft X to 3;400 immediately. There were many aircraft at 3;000 today due to winds and clouds at 3;500. I was already alert to other MVA's elsewhere in my airspace and after those aircraft passed the areas in question; I turned off my MVA map. I did not bring it back up upon receiving radar on Aircraft X. I will [make] a conscious effort to bring up my MVA map whenever aircraft are operating at or below 3;000 in the Macon/Columbus sectors.
Atlanta TRACON Controller reported an aircraft entered an area with a higher Minimum Vectoring Altitude.