Hurry before it all melts!
"The Race" by William McElcheran on the grounds of Rodman Hall in St. Catharines, Ontario.
A comical depiction of athletic competition or a satirical characterization of modern pursuit of "success" (often referred to as "the rat race").
Here, with a fresh cover of snow, the meaning may seem more communal. A collective effort to deliver snow before it turns back into water.