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Tropical Storm Colin was expected to cross over Florida overnight and re-emerge into the Atlantic on Tuesday, where it's possible it could strengthen. (National Hurricane Center)

Tropical Storm Colin picked up speed and was poised to come ashore on the Florida coast while soaking a large part of the Southeast.

As of the last advisory, issued at 10 p.m. CDT Monday, Colin was located about 65 miles northwest of Cedar Key, in Florida's Big Bend region.

Its center of circulation appeared to be nearing land at that time, according to the National Weather Service:

MT @NWSTampaBay: Center of Tropical Storm #Colin seen on radar at 1030 PM EDT spinning over E Apalachee Bay #flwx pic.twitter.com/dESpgJGg2o — AccuWeather (@breakingweather) June 7, 2016

However, as of midnight CDT no official statement had been made about the center of circulation coming ashore.

Colin had maximum sustained winds of 50 mph as of the last advisory. Its winds have stayed static all day, and the National Hurricane Center didn't expect it to strengthen before it makes landfall.

Colin continued to move quickly on Monday night and was headed northeast at 23 mph, the hurricane center said.

On that path Colin would make landfall in Florida's Big Bend region and then move across portions of Florida and southeastern Georgia early Tuesday morning and head up the southeastern coast of the United States. It could transition to a post-tropical storm during that time.

The hurricane center cautioned, however, not to focus solely on the point of landfall.

Colin was a lopsided system and its worst effects were being felt well to the east of the circulation center.

Tropical storm force winds extended up to 230 miles from the center of the storm as of Monday night. The hurricane center said sustained winds of 40 mph were reported earlier tonight at Clearwater Beach Pier on Florida's Gulf Coast.

Rain and storms have been flooding areas on the Florida peninsula, and rain from Colin stretched as far north as North Carolina on Monday night.

Rain from Colin continued to fall Monday night up and down the Florida peninsula and stretched northward into Georgia and the Carolinas. (National Weather Service)

Florida's two coastlines were covered with warnings. A tropical storm warning was in effect for the Gulf Coast from Indian Pass to Englewood.

A second tropical storm warning was also in effect on the Atlantic coast from Sebastian Inlet in Florida to Oregon Inlet in North Carolina.

Colin remained a relatively weak, disorganized tropical storm as it neared the coast. However, some slow strengthening may be possible on Tuesday when the storm re-emerges over the Atlantic. It was not expected to become a hurricane, however.

Colin's main impact will likely be flooding rains.

The hurricane center said 3-5 inches of rain is possible in northern Florida, southeastern Georgia and along the coast in the Carolinas through Tuesday. Some areas could get up to 8 inches.

Some storm surge will also be possible if Colin's arrival coincides with high tide on the Gulf Coast. One to 3 feet of surge could be possible from Indian Pass to Tampa Bay, and 1-2 feet possible from Tampa southward to Florida Bay, the hurricane center said.

Coastal flooding and dangerous surf will also be a risk along the Gulf Coast as well as the east coast of Florida and Georgia.

A few tornadoes will also be possible for areas in Colin's path, and the Storm Prediction Center had placed a slight risk of severe weather across parts of north and central Florida.

Colin still hadn't gotten its act together as a tropical storm as of late Monday.

The storm was encountering wind shear and that will likely keep it from intensifying before landfall, the hurricane center said.

It also didn't resemble a tropical storm, with most of its heaviest storms and strongest winds well to the east of the center.

In fact, the hurricane center said that a reconnaissance aircraft found Colin's strongest winds about 200 nautical miles southeast of the center of circulation on Monday afternoon.

The National Weather Service office in Tallahassee, Fla., shared this photo of storms from east of Colin's center as seen from the Florida State University campus on Monday evening. (NWS Tallahassee)

Here's a satellite image, also shared by the weather service, of the storms seen from the FSU campus. (NWS Tallahassee)

Alabama was not in the forecast cone, but the National Weather Service in Mobile warned that Colin will stir up seas and create a high risk of rip currents along beaches in the state as well as northwest Florida.

Red Flags flying at Alabama beaches today. View from Ft Morgan, AL this morning 🚩🌊 Thanks for the picture, @bobj0867 pic.twitter.com/fegEsbr6sI — NWS Mobile (@NWSMobile) June 6, 2016

A high surf advisory was in effect until 7 a.m. Tuesday for coastal Baldwin County in Alabama and Escambia, Santa Rosa and Okaloosa counties in Florida. Rip currents were also possible in coastal areas of Mobile County, the weather service said.

Colin is the third named storm of 2016 in the Atlantic. Hurricane season officially started less than a week ago on June 1 and runs through Nov. 30.