A tropical depression prompted storm surge and tropical storm watches for Florida’s western-most areas.

By Monday night or Tuesday, the depression is expected to become a tropical storm, according to the National Weather Service’s National Hurricane Center.

The Monday afternoon report from NWS says “an isolated tornado or two are possible over the Florida Big Bend region today.”

As of Monday afternoon, maximum sustained winds from the depression were about 35 mph. “Gradual strengthening is expected for the next day or two,” the report states.

The NWS issued a storm surge watch, beginning at the Alabama-Florida border, stretching west to Louisiana. That watch means there is a “possibility of life-threatening inundation, from rising water moving inland from the coastline,” according to the NWS.

The surge is expected to reach 1-3 feet from Indian Pass to Chassahowitzka, as pictured above.

A tropical storm watch, as of Monday afternoon, was in effect for the Ochlockonee River west of Tallahassee, and extending further west from there, meaning tropical storm conditions are possible within the next 24-28 hours.

Associated rainfall could cause flash flooding.

The NWS said more watches or warnings could be issued Monday or Tuesday.