  The High-Altitude Water Cherenkov Observatory (HAWC) is a large field of view
($\sim$2sr) instrument sensitive to very-high energy gamma rays
($\sim$0.5-100TeV). It is located in central Mexico (19$^\circ$N) and has a
high duty cycle ($\sim$95%). These characteristics allow it to continuously
monitor $\sim$2/3 of the sky, looking for transient events, such as flares from
Active Galactic Nuclei or possibly other unknown phenomena. Presented here is
an unbiased real-time monitoring on hours timescales which provides daily flux
measurements for all locations in our observable sky promptly after they leave
our field of view. These measurements are then used to follow known TeV sources
and to perform a blind search. The alerts generated from these analyses, some
of which have been made public through the Astronomer's Telegraph, can trigger
small field of view instruments, enabling deep observations of sources during
their high state activity which can constrain acceleration mechanisms.
Additionally, these measurements allow us to respond quickly to external
alerts.
