Alabama should be prepared for strong winds, flooding and possible tornadoes, the state’s Emergency Management Agency said. Baldwin and Mobile counties are under a tropical storm warning and a flood watch, the agency said. A flood watch is also in effect for Washington County. 

Threats of tornadoes have increased and a few are possible in the southwestern parts of the state from this afternoon through early tomorrow. The entire state could see tornadoes beginning late tomorrow morning into the evening. 

The agency cautioned that tornadoes in a tropical system often develop fast with little advanced warning and can be “rain-wrapped,” making them difficult to see. 

“If a warning is issued for your area, take immediate action by getting to the lowest floor of a sturdy building,” EMA said. 

Francine is expected to bring wind gusts at or above 40 mph in rain bands and nonprecipitation wind gusts of 25 mph to 40 mph. Heavy rainfall is also a threat with 2 to 4 inches of rain forecasted for much of the state through early Friday. 

The rain could trigger local flooding in urban areas and coastal flooding in low-lying areas. 

Hurricane Francine is likely to make landfall between Avery Island and Houma, Louisiana, between 4 p.m. and 8 p.m. ET today.

This will be the seventh hurricane to make landfall in Louisiana in the last eight years. Here is a rundown of the main threats.

As much as 12 inches of rain could fall in some areas across southern Louisiana and southern Mississippi.

The sheer amount of rain, between 3 and 5 inches per hour, could cause rapid flash flooding especially in urban areas such as Baton Rouge and New Orleans.

Flood watches are in place for 8 million people from Louisiana to northeast Florida, with the threat of heavy rain and flooding moving north and east tomorrow from the Florida Panhandle into southern Illinois.

The highest storm surge of between 5 and 10 feet is possible along the southcentral Louisiana coast between Vermillion Bay and Port Fourchon.

Areas around Lake Pontchartrain could experience 4 to 6 feet of storm surge. Areas on the northern periphery of Lake Pontchartrain will be at higher risk for inundation because that part is not as heavily leveed as the southern end.

While Francine is expected to rapidly weaken after landfall, wind gusts up to 80 mph will still be possible across southern Louisiana.

Widespread power outages are likely and tornadoes are also a formidable risk today, especially across southeast Louisiana into southern Mississippi and the western Florida Panhandle through the night.

New Orleans: Rain begins around 10 a.m. ET with the heaviest downpours likely between 12 p.m. and 12 a.m. ET; wind gusts up to 60 mph, peaking between 8 p.m. and 2 a.m.

Baton Rouge: Rain begins around 10 a.m. ET with heaviest downpours between 1 p.m. and 12 a.m. ET; wind gusts up to 50 mph, peaking between 7 p.m. and midnight.

Lafayette: Rain beings around 9 a.m. ET, with the heaviest rain between 11 a.m. and 8 p.m. ET; wind gusts up to 50 mph, peaking around 6 p.m.

Gulfport: Heavy rain begins by 12 p.m. ET and continues into the early morning hours tomorrow; wind gusts up to 60 mph, peaking around midnight.

A state of emergency is in effect for Louisiana as Hurricane Francine gains strength through the Gulf of Mexico. There could be as much as 6 feet of storm surge. NBC’s Jesse Kirsch reports and the "TODAY" show’s Al Roker tracks the latest forecast.

A group of teenagers from the small community of Lafitte, Louisiana, south of New Orleans, spent 14 hours stacking sandbags yesterday, NBC affiliate WDSU of New Orleans reported.

The group, part of a sports teams, had been working alongside their coach since 6 a.m. yesterday and planned to come back early today to carry on protecting the low-lying area.

There is a mandatory evacuation order in place for Lafitte and the surrounding area.

A long list of schools are shut today and tomorrow across Louisiana. WDSU has the details.

Tropical storm Francine was expected to make landfall as a Category 1 or 2 hurricane along the Gulf Coast today, with storm surge the biggest threat along the coast. NBC News’ Jesse Kirsch reports on how New Orleans is preparing for the storm.

Hurricane Francine poses a real and serious risk to New Orleans that should not be underestimated, Jon Porter, chief meteorologist at private weather forecasting company AccuWeather, said last night.

"AccuWeather hurricane experts are becoming increasingly concerned about the risk for damaging winds in the densely populated New Orleans metropolitan area," Porter said in a media advisory note.

“Should Francine pass closer to the city, the storm’s eyewall, the most intense part of the storm can pass near or over parts of the city, which would increase the risk for wind gusts of 80-100 mph," he added, noting that this could cause widespread and potentially long-lasting power outages.

People should, he advised, be prepared with enough food and water to last several days.

"There are a lot of other headlines in the news this week. We are concerned that this storm is not getting enough attention and that some people may be caught off guard by the strength and damaging impacts from Francine," Porter said.

Roxanne Riley, 42, stocks up on supplies at a Walmart as she prepares to shelter in place in New Orleans as Tropical Storm Francine barrels toward the Louisiana coast yesterday.

As Francine slowly makes its way toward the U.S. Gulf Coast, with landfall expected today, the National Hurricane Center warns that the storm could continue to strengthen and become almost a Category 2 hurricane.

Category 1 storms have wind speeds of between 74 and 95 mph; Category 2 is from 96 to 110 mph. Francine has sustained wind speeds of 90 mph, the NHC said in a 2 a.m. update.

The hurricane center said its intensity forecast shows Francine nearing category 2 strength this morning.

"A notable increase in shear and intrusions of dry air should end the opportunity for strengthening just before Francine reaches the coast," it said.

Some positive news for people in its path: the cyclone will rapidly weaken once it moves inland.