Guide to this weekend’s Pride festivities: Petersburg Mayor Rick Kriseman raising a rainbow flag over city hall. The city’s annual Pride weekend festivities begin with St. Pete Pride is to promote unity, visibility, self-esteem and a positive image of and among the lesbian, gay, bisexual and transgender (LGBT) community of Tampa Bay,' the website states. Florida's largest LGBT pride festival begins this weekend! Officials estimate more than 200,000 people will fill the streets of Downtown St.