Michael first developed into a tropical depression early on October, 7th approximately 90 miles east of Chetumal, Mexico before gradually strengthening to a tropical storm by the afternoon while tracking north off the Yucatan Peninsula coast. Michael then continued to strengthen to a Category 1 hurricane while tracking north just off the western Cuba coast on October, 8th before gaining latitude and rapidly intensifying to a high-end Category 3 hurricane in the Gulf Of Mexico on October 9th. The major hurricane continued to track north, then north-northeast early on October 10th, strengthening to a high-end Category 4 hurricane with sustained winds of 155 mph and a minimum central pressure of 919 mb while making landfall near Mexico Beach, Florida at 2 PM EDT. Michael then weakened while moving inland, but maintained hurricane strength for approximately 10 hours while heading northeast over the Florida Peninsula and south central Georgia. Michael then maintained tropical storm strength October 11th, tracking northeast over central Georgia and the central Carolinas, before eventually shifting off the southern Virginia coast and transitioning into an extratropical cyclone over the Western Atlantic on October 12th. Minimum surface pressures of 999.3 mb at Savannah International Airport (KSAV), 1000.3 mb at Charleston International Airport (KCHS), 995.6 mb at Statesboro, GA (KTBR) and 994.2 mb at Allendale County Airport, SC were recorded as the center of Michael passed inland.
Across southeast Georgia and southeast South Carolina, the main impacts from Michael included wind damage in the form of isolated to scattered trees and power lines blown down, heavy rainfall and minor levels of storm surge. There were no reports of injuries or fatalities across the area.
Storm total rainfall amounts generally ranged from 1.0 to 3.5 inches across the area. A peak storm total rainfall of 3.65 inches was recorded at Jamestown, SC while a peak storm total rainfall of 3.56 inches was recorded at Fort Stewart, GA. Heavy rains also led the Santee River at Jamestown, SC to reach minor flood stage on October 12th.
Wind damage, mainly in the form of downed trees, produced numerous power outages and damage to a few homes as well as automobiles. On October 11th, a maximum sustained wind of 43 mph occurred at the Folly Beach Pier in South Carolina and at Tybee Island South in Georgia. A maximum sustained wind of 42 kt also occurred at Fort Sumter in the Charleston Harbor. A maximum wind gust of 57 mph occurred at Isle of Palms and the Folly Beach Pier in South Carolina and at Tybee Island South in Georgia. A maximum wind gust of 53 kt also occurred at the Capers Nearshore Buoy in nearshore waters.
Storm Surge was minor along the beaches, but isolated damage was reported to a dock along the Charleston County coast. A peak surge of 2.29 ft occurred at the Fort Pulaski tide gauge at 154 AM October 11th while a peak surge of 2.07 ft occurred at the Charleston Harbor tide gauge at 212 AM October 11th.

Tropical Storm in CHARLESTON, SOUTH CAROLINA
From 11-OCT-18 02:00:00 to 11-OCT-18 14:00:00 (EST-5)
Reported by: Law Enforcement

Law enforcement, media sources and the public reported nine trees and a few power lines down across the county, most notably around Charleston, Mount Pleasant, West Ashley, James Island and Johns Island. Most trees fell down on roadways, but two trees fell down on homes while another tree fell down on a car. A maximum sustained wind of 43 mph occurred at Folly Beach Pier while wind gusts of 57 mph occurred at Isle of Palms and Folly Beach Pier during the event.

Storm Surge/Tide in CHARLESTON, SOUTH CAROLINA
From 11-OCT-18 02:00:00 to 11-OCT-18 14:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported frequent waves crashing over the sea wall along the Charleston Battery and flowing over Murray Boulevard. A video via social media also showed minor damage to a marina gangway and docks near Patriots Point. A peak surge of 2.07 feet was measured at the Charleston Harbor tide gauge during the event.

Tropical Storm in BEAUFORT, SOUTH CAROLINA
From 10-OCT-18 23:00:00 to 11-OCT-18 11:00:00 (EST-5)
Reported by: Emergency Manager

Emergency Management and broadcast media reported 11 trees and a few power lines blown down across Beaufort County, most notably around Hilton Head Island and Bluffton. A maximum sustained wind of 34 mph and gust of 52 mph occurred at the Beaufort County Airport during the event. A maximum sustained wind of 31 mph and gust of 48 mph also occurred at Hilton Head Airport during the event.

Tropical Storm in DORCHESTER, SOUTH CAROLINA
From 11-OCT-18 02:00:00 to 11-OCT-18 14:00:00 (EST-5)
Reported by: Emergency Manager

Emergency Management, law enforcement and broadcast media reported 10 trees, a few power lines and 1 utility pole blown down, most notably along highway 61 near the Dorchester/Charleston County line, Givhans, Dorchester, Ladson, Knightsville, Reevesville, Harleyville, Canadys and Jedburg. A maximum sustained wind of 20 mph and gust of 42 mph occurred at Summerville, SC during the event.

Tropical Storm in NORTHERN COLLETON, SOUTH CAROLINA
From 10-OCT-18 23:00:00 to 11-OCT-18 11:00:00 (EST-5)
Reported by: Law Enforcement

Law enforcement reported reported 8 trees and a few power lines down, most notably around Ritter, Hendersonville, Walterboro, Ruffin, Canadys, Ashepoo, and Islandton. A maximum sustained wind of 36 mph and gust of 51 mph occurred at the Lowcountry Regional Airport in Walterboro during this event.

Tropical Storm in SOUTHERN COLLETON, SOUTH CAROLINA
From 10-OCT-18 23:00:00 to 11-OCT-18 11:00:00 (EST-5)
Reported by: Law Enforcement

Law enforcement reported a tree down near Bennetts Point.

Tropical Storm in INLAND BERKELEY, SOUTH CAROLINA
From 11-OCT-18 02:00:00 to 11-OCT-18 14:00:00 (EST-5)
Reported by: Law Enforcement

Law enforcement and broadcast media reported 2 trees down, one near Goose Creek and the other near Sangaree. A maximum sustained wind of 27 mph occurred at Monks Corner and a wind gust of 41 mph occurred at Monks Corner and Pinopolis during this event.

Tropical Storm in TIDAL BERKELEY, SOUTH CAROLINA
From 11-OCT-18 02:00:00 to 11-OCT-18 14:00:00 (EST-5)
Reported by: NWS Employee

A NWS employee and trained spotter reported 2 trees down near Daniel Island.

Tropical Storm in JASPER, SOUTH CAROLINA
From 10-OCT-18 23:00:00 to 11-OCT-18 11:00:00 (EST-5)
Reported by: Law Enforcement

Law enforcement reported a tree down near Ridgeland.

Tropical Storm in HAMPTON, SOUTH CAROLINA
From 10-OCT-18 23:00:00 to 11-OCT-18 11:00:00 (EST-5)
Reported by: Law Enforcement

Law enforcement reported a tree down near Scotia.