(RNN) - Michael strengthened to a Category 4 hurricane early Wednesday, giving it the potential to be the first hurricane of that category or higher to make landfall in the Florida Panhandle, likely near Panama City.
The hurricane, which has maximum sustained winds of 145 mph, is expected to strengthen even further, hours before its forecast landfall Wednesday afternoon, according to the National Hurricane Center.
In its 8 a.m. update, the NHC said Michael was located 90 miles southwest of Panama City, FL, and was moving north at 13 mph.
Michael is bringing a life-threatening storm surge, hurricane-force winds and heavy rainfall to the northeastern Gulf Coast.
Residents of 13 Florida counties along the Panhandle and the west coast have been issued mandatory evacuation orders. Nine other counties have been issued voluntary or phased evacuation orders.
The evacuation orders affect at least 2 million people, CNN reports.
Florida Gov. Rick Scott announced Tuesday that 34 shelters were opening across the state in preparation.
Many businesses in Panama City Beach, FL, were reportedly shuttered Tuesday evening as Michael neared.
Mandatory evacuations have been ordered for the following Florida counties: Bay, Citrus, Dixie, Franklin, Gadsden, Gulf, Jackson, Jefferson, Levy, Okaloosa, Taylor, Wakulla and Walton.
Voluntary or phased evacuations have been issued for these Florida counties: Calhoun, Hernando, Leon, Liberty, Madison, Pasco, Santa Rosa, Washington and Escambia.
Those in mobile homes or other weak structures, in particular, were urged to leave. Tolls were suspended in order to help people evacuate.
Update 4 am CDT Extremely dangerous category 4 Hurricane #Michael nearing the coast of the Florida panhandle. This is a life-threatening event for the northeastern portion of the Gulf Coast. Hourly updates will be provided at https://t.co/tW4KeGdBFb pic.twitter.com/SWmdKROpYU— National Hurricane Center (@NHC_Atlantic) October 10, 2018
Residents stocked up on food, water and gasoline. Some gas stations in the Panhandle ran out of fuel Tuesday as demand surged, WKMG reported. Officials from AAA said fuel trucks were operating nonstop to keep the stations supplied.
By Monday morning, generators were sold out in many Tallahassee-area stores, according to the Tallahassee Democrat.
Michael is expected to produce a life-threatening storm surge for much of Florida and potentially Alabama’s coastlines. More than 325 miles of coastline from Mobile, AL, through the Florida Panhandle and Big Bend area are threatened, according to the National Weather Service.
Water levels began rising Tuesday.
A storm surge warning is in effect from the Okaloosa-Walton County line to the Anclote River in Florida, and a storm surge watch is in effect for the Anclote River to Anna Maria Island, including Tampa Bay.
Tropical storm-force winds extend up to 185 miles outward from the storm’s center, and hurricane-force winds extend outward up to 45 miles from the center.
After making landfall, Michael is expected to cut a path across the Southeast through Thursday night before heading north-eastward.
Widespread power outages, major tree damage and structural damage are expected in the Panhandle, with some of this damage extending as far as parts of northern Georgia and North and South Carolina, the Weather Channel reports.
These states may also see tornadoes spawn Wednesday into Thursday.
The Carolinas are still recovering from Hurricane Florence, which hit the states with devastating rain and flooding in September.
President Donald Trump approved an emergency declaration for Florida Tuesday, meaning federal aid will be available to the state to assist in hurricane recovery.
Scott first declared a state of emergency Sunday, then expanded it the next day to include 35 counties.
“Hurricane Michael is forecast to be the most destructive storm to hit the Florida Panhandle in decades,” Scott said. “You cannot hide from storm surge, so get out if an evacuation is ordered.”
Hurricane force winds are expected to extend well inland over portions of the Florida Panhandle and portions of southeast Alabama and southwest Georgia as Michael moves inland, where hurricane warnings are in effect. pic.twitter.com/p9IrnFp86A— National Hurricane Center (@NHC_Atlantic) October 10, 2018
The governors of Alabama and Georgia also declared states of emergency because of the expected effects of the storm on those states.
Heavy rainfall could produce life-threatening flash flooding from the Florida Panhandle and Big Bend region into parts of Georgia, the Carolinas and southeast Virginia.
About 3.7 million people are under hurricane warnings across Florida, Alabama and Georgia, while tropical storm warnings cover 8.5 million people in several states, according to CNN.
A hurricane warning has been issued from the Alabama-Florida border to the Suwannee River.
Tropical storm warnings have been issued from the Alabama-Florida border to the Mississippi-Alabama border, from the Suwanee River to the Chassahowitzka River in Florida and from north of Fernandina Beach, FL, to Surf City, NC.
A tropical storm watch is in effect along the southeastern coast of the U.S. and beyond, from the Chassahowitzka River to Anna Maria Island in Florida, including Tampa Bay, the Mississippi-Alabama border to the mouth of the Pearl River, Surf City, NC, to Duck, NC, and for the Pamlico and Albemarle Sounds.
The Florida Panhandle and Big Bend areas, in addition to southern portions of Alabama and Georgia, are expected to receive as much as 12 inches of rain through Friday.
A Storm Surge Warning remains in effect for much of the Florida Panhandle and Big Bend region, where life-threatening storm surge is expected today. Storm surge inundation could reach 9 to 13 feet above ground level between Tyndall Air Force Base and Keaton Beach FL @NHC_Surge pic.twitter.com/7GZU8Ceq3y— National Hurricane Center (@NHC_Atlantic) October 10, 2018
The rest of Georgia, the Carolinas and southern Virginia are expected to receive as much as 8 inches.
These rains could bring life-threatening flash flooding.
The Florida Peninsula, eastern mid-Atlantic and southern New England coast could see as much as 3 inches of rain.
Michael is expected to weaken after making landfall and as it moves across the Southeast before reaching Virginia and Maryland Thursday night or Friday. Forecasters expect Michael to re-emerge over water and head away from the U.S. on Friday.
The last major hurricane to hit northwest Florida was in 2005, when Hurricane Dennis made landfall at Santa Rosa Island, FL, as a Category 3 storm, the Northwest Florida Daily News reported.
The seventh hurricane and second major hurricane of the 2018 Atlantic hurricane season, Michael formed near Mexico’s Yucatan Peninsula on Sunday.
Michael brought heavy rains to western Cuba as it moved through the area Monday. At least 13 people in Central America died as a result of the storm’s rain and flooding over the weekend, Al Jazeera reported.
#Hurricane #Michael is now forecast by the National Hurricane Center to reach Category 4 strength as it heads towards the Florida Panhandle. 0 Category 4-5 hurricanes on record (since 1851) have made landfall in the Florida Panhandle. pic.twitter.com/WwKSWY8FHf— Philip Klotzbach (@philklotzbach) October 10, 2018
Florence, the first major hurricane of the season, made landfall as a Category 1 storm the morning of Sept. 14 at Wrightsville Beach, NC.
It left at least 51 people dead across North Carolina, South Carolina and Virginia, according to Reuters. The amount of damage, particularly from flooding associated with the storm, is expected to reach 11 figures.
Meanwhile, Hurricane Leslie continues moving through the middle of the Atlantic.
The NHC announced in its 5 a.m. ET update that Hurricane Leslie was 1,105 miles west-southwest of the Azores, moving to the south at 10 mph. It’s expected to travel south before turning to the east-northeast Wednesday night.
The storm has maximum sustained winds of 75 mph. There are no coastal watches or warnings in effect for Leslie.
In addition, Tropical Storm Nadine, the 14th named storm of the hurricane season, is strengthening, as of the NHC’s 5 a.m. ET update.
Nadine is moving at 7 mph, with maximum-sustained winds of 50 mph.
It was located about 485 miles west-southwest of Cabo Verde, an archipelago nation off the African coast. No coastal watches or warnings have been issued for Nadine.
The storm is expected to begin weakening Thursday.
Tropical Storm Nadine formed Tuesday morning.
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