Spring in Seattle is in full bloom. The cherry blossoms have come and gone. Blue skies — more often than not — paint a scenic backdrop behind the Emerald City.  Football, too, is preparing to enter one of its longer breaks in the calendar. The NFL draft is complete. The reigning Super Bowl champion Seahawks won’t begin OTAs until May 26, with mandatory minicamps set for early June.  So when coach Jedd Fisch and the Huskies run out of the tunnel at Husky Stadium on Friday evening for their annual spring game, it will be the final major football event in Seattle for the next month.  “Let’s let it rip,” Fisch said on April 25.  Washington will host its spring game, bringing an official end to its spring practice season, at 6:30 p.m. Friday at Husky Stadium. Tickets are free, with gates opening for the event at 5:30 p.m.…