  We present observational signatures of solar cycle 25 onset. Those signatures
are visibly following a migratory path from high to low latitudes. They had
starting points that are asymmetrically offset in each hemisphere at times that
are 21-22 years after the corresponding, same polarity, activity bands of solar
cycle 23 started their migration. Those bands define the so-called "extended
solar cycle." The four magnetic bands currently present in the system are
approaching a mutually cancelling configuration, and solar minimum conditions
are imminent. Further, using a tuned analysis of the daily band latitude-time
diagnostics, we are able to utilize the longitudinal wave number (m=1)
variation in the data to more clearly reveal the presence of the solar cycle 25
bands. This clarification illustrates that prevalently active longitudes
(different in each hemisphere) exist at mid-latitudes presently, lasting many
solar rotations, that can be used for detailed study over the next several
years with instruments like the Spectrograph on IRIS, the Spectropolarimeter on
Hinode, and, when they come online, similar instruments on the Daniel K. Inouye
Solar Telescope (DKIST) as we watch those bands evolve following the
cancellation of the solar cycle 24 activity bands at the equator late in 2019.
