Hillsborough County 

officials ordered mandatory evacuation for around 300,000 residents ahead of the intensifying hurricane.

Hillsborough County is first to issue mandatory hurricane evacuations

Residents living in Zone A are under mandatory hurricane evacuation and residents in Zone B are recommended to evacuate,

Emergency shelters will also be opened to residents beginning at 2 p.m. on Sept. 26, according to the county website.

County Administrator Bonnie Wise urged residents: “Do not wait. Time is of the essence. Act now.”

Reiterated by county sheriff, Chad Chronister, emergency hurricane procedures are only as effective as the buy-in from community members.

Here's an update on other evacuation orders around the greater Tampa Bay region:

Pinellas County: No evacuations ordered at this time, one will likely be issued Tuesday. Mobile home residents, those who live in low-lying areas, and tourists should evacuate Monday, officials say.

Sarasota County: While there are no evacuations issued at this time, the county is expecting to announce evacuation alert for Level A in effect for Tuesday morning.

Hernando County: Voluntary evacuation for all residents west of U.S. 19 and all residents of mobile homes and in low-lying areas. On Tuesday those evacuations will become mandatory. Shelters will open at 9 a.m. Tuesday.