Multiwavelength light curve of PKS 1424−418. From top to bottom: first panel displays radio data from TANAMI in several bands between 4.8 and 40 GHz; second panel displays 230 GHz (red symbols) and 345 GHz (black symbols) data from SMA and APEX, respectively; third panel displays optical B-band (red points) and R-band (green points) data from ATOM, Swift-UVOT data (W1, M2, W2, and V, B, U filters); fourth panel displays Swift-XRT data; fifth panel displays Fermi LAT flux (E> 100 MeV). Vertical lines denote the prominent outbursts studied in this work: black flare A, red flare B1, blue flare B2 and green flare C.