Michael made landfall as a catastrophic, unprecedented Florida Panhandle Category 4 hurricane early during the afternoon of Oct. 10.
Hurricane Michael intensified right up to its landfall near Mexico Beach, Florida, around 12:30 p.m. CDT Wednesday as a high-end Category 4 with maximum sustained winds of 155 mph and a minimum central pressure of 919 millibars.
Michael was the third most intense continental U.S. landfall by pressure and fourth strongest by maximum sustained winds on record. Michael was also the most intense Florida Panhandle landfall on record, the first Category 4 hurricane to do so in records dating to the mid-19th century.
Several recent scientific studies say that hurricanes are intensifying more rapidly than they used to. One study this year in Geophysical Research Letters said that since 1986, the rate of intensification of storms like Michael has increased by about 13 mph.
The National Hurricane Center's Storm Surge Unit, estimated peak storm surge inundation of 9 to 14 feet above ground likely occurred from Mexico Beach through Apalachee Bay, a location notorious for storm surge even from less intense tropical cyclones.
Regardless of the cause, Michael saw our worst fears realized, of rapid intensification just before landfall on a part of a coastline that has never experienced a Category 4 hurricane, University of Miami hurricane researcher Brian McNoldy said.
Michael's storm surge produced a peak inundation of 7.72 feet above ground level at Apalachicola, Florida, Wednesday afternoon, smashing the previous record of 6.43 feet above ground set during Hurricane Dennis in July 2005.
Peak inundation of 5.31 feet above ground at Panama City, Florida, was second only to Hurricane Opal in 1995. Cedar Key, Florida, saw peak inundation of just over 4 feet Wednesday afternoon.
An observing site near Tyndall Air Force Base, east of Panama City, measured a wind gust to 129 mph early Wednesday afternoon, and a gust to 107 mph was reported 1 mile south of Panama City.
At one time, it was estimated over 200 roads in the city of Tallahassee were blocked by fallen trees.
Maue analyzed early October water temperatures in the eastern Gulf and found that when comparing data from 1985-2005 to data from 2006-2018, the average temperature rose nearly 1 degree.
A weather reporting station deployed by Weatherflow and the University of Florida measured a surface pressure from 920-929 millibars, an extraordinarily low pressure to measure on U.S. soil, before it was toppled, according to Shea Gibson, WeatherFlow, Inc. meteorologist.
Michael also shattered Panama City's all-time low pressure record, which had stood from Hurricane Kate in 1985.
Hurricane Michael exploded in intensity this week, from a rather nondescript tropical depression Sunday with winds of 35 mph to a Category 4 monster Wednesday with 155 winds.
– Florida: 129 mph at Tyndall AFB; 89 mph in Apalachicola; 71 mph in Tallahassee- Alabama: 68 mph in Dothan- Georgia: 115 mph in Donalsonville; 70 mph in Albany- South Carolina: 55 mph in Myrtle Beach; 52 mph near Charleston
Winds gusted to 50-55 mph, at times, in Augusta, Georgia, Charleston and Myrtle Beach, South Carolina, Thursday morning. There have been a number of reports of trees and power lines downed in eastern Georgia and South Carolina, including in the Columbia metro area.
Rainfall from Michael has now topped 6 inches in a few locations, but has been held down somewhat, primarily due to Michael's more rapid forward movement compared to Florence. Here are some notable rainfall totals by state:
– Florida: 5.26 inches at Sumatra; 3.17 inches in Tallahassee; 2.61 inches in Panama City- Alabama: 5.54 inches in Ozark; 4.92 inches in Dothan; 1.60 inches in Montgomery- Georgia: 6.48 inches near Powder Springs; 3.37 inches in Macon- South Carolina: 6.01 inches near Hartsville; 4.47 inches in Columbia- North Carolina: 9.62 inches near Black Mountain; 6.75 inches near Boone; 2.95 inches in Asheville- Virginia: 5.75 inches near White Gate; 1.40 inches in Blacksburg
Flooding was also reported on Interstate 26 and the Interstate 126 interchange on the northwest side of Columbia early Thursday morning. Ten homes were flooded in Irmo, South Carolina, requiring some evacuations.
In North Carolina, a swift water rescue was needed due to flooding near Old Fort, and significant street flooding was reported in Hendersonville and Boone.
Michael first developed as Tropical Depression Fourteen on Oct. 7 east of Mexico's Yucatan Peninsula.
Michael rapidly intensified from a tropical depression to Category 1 hurricane in just 24 hours ending 11 a.m. EDT Oct. 8.
Michael continued to intensify right up to landfall, exhibiting eyewall lightning as it pushed to high-end Category 4 status slamming ashore in the Florida Panhandle.
Michael arrived in southwestern Georgia early Wednesday evening as a Category 3 major hurricane, the first hurricane of that strength to track into Georgia since the Georgia Hurricane of 1898, according to Dr. Phil Klotzbach, tropical scientist at Colorado State University.
Share KATE BRUMBACK Oct 12th 2018 5:35AM ATLANTA (AP) — By all accounts, Sarah Radney was safe inside her grandparents home when Hurricane Michael roared into southwest Georgia.
In what could only be described as a freak accident, authorities say Michaels powerful winds lifted the portable structure high into the air and slammed it back down on the house. When it landed, one of the legs tore through the roof, fatally striking the 11-year-old girl in the head.
Michael dropped from a Category 4 hurricane to a Category 1 as it arrived in Georgia, and later weakened to a tropical storm. Still, it caused havoc in parts of the state, spinning off tornadoes and leaving downed trees, damaged buildings and power outages behind as it marched toward the Carolinas.
Sarah had the week off from school for fall break and she and her 12-year-old brother had been staying at their grandparents house near a lake in Seminole County since Monday. They were supposed to return home Thursday morning.
At home in Cairo about 45 miles (70 kilometers) away, Sarahs father and stepmother, Roy and Amber Radney, kept in touch with her grandparents through frequent phone calls as the storm winds gusted around them.