Hugo developed from a tropical wave that moved off the coast of Africa on September 9th. The storm tracked westward, and became a tropical storm on the 11th, and a hurricane on the 13th. It reached its peak intensity as a Category 5 hurricane, and moved toward the United States. Hugo made landfall in South Carolina as a Category 4.
The storm caused $10 billion (1989 USD, $16.3 billion (2006 USD) in damages, making it the most damaging hurricane ever recorded up to that time, surpassing Hurricane Frederic. Hugo was itself surpassed by Hurricane Andrew three years later, which was eventually surpassed by Hurricane Katrina in 2005.
Hugo began to execute a more north-northwest track, still intensifying as it did so. On the 17th, Hugo's eye was over Guadeloupe. Shortly thereafter, Hugo accelerated to the north-nothwest, and by the 19th, Hugo was located to the north of Puerto Rico. On the 21st, Hugo was located a couple hundred miles east of Florida, when it began a more northward track, in response to a steering flow that was associated with a low pressure system that was moving across the United States.
Hugo moved toward the northwest, and made landfall on the Isle of Palms, South Carolina, as a Category 4 on the Saffir-Simpson hurricane scale on September 22nd. The storm continued inland, and weakend to a tropical storm later that day. The storm continued weakening as it moved inland, and on September 23rd, the storm was making its transition into a remnant low.
| Region | Deaths |
|---|---|
| United States | 35 |
| Puerto Rico | 12 |
| Guadeloupe | 11 |
| Montserrat | 22 |
| Virgin Islands | 6 |
| Antigua and Barbuda | 10 |
| Saint Kitts and Nevis | 11 |
| Total | 107 |
Hugo caused $7 billion (1989 USD) in damage in the mainland United States. At the time it was the costliest hurricane in U.S. history, but was exceeded in 1992 by Hurricane Andrew, and by three other storms since then. It remains the sixth costliest hurricane in U.S. history. An additional $3 billion of damages was reported throughout the Caribbean. Therefore, total damages from the storm were $10 billion (1989 USD).
Sources differ on the number of people killed by Hugo, with some citing the American Meteorological Society's figure of 49, and others claiming 56 deaths . Some government agency sources claim only 32 deaths in the United States.
Additionally, the local bat population was devastated, with an estimated 90% decrease in numbers following Hugo's passage. The species Chiroderma improvisum has not been seen on Montserrat since, and it is feared that it may be extinct on the island.
In all, 12 deaths in Puerto Rico are attributed to Hugo, six of which occurred in the southern city of Guayama where some residents were electrocuted by downed power lines. Nearly 28,000 people were left homeless by the storm.
While downtown Charleston, South Carolina suffered extensive damage, the greatest damage was reported in the northern suburbs of Mount Pleasant, Sullivan's Island, Isle of Palms, and Goose Creek. Both islands were cut off from the mainland by destruction of their bridges. Along the coast, Hugo destroyed many houses and the storm surge piled boats on top of each other.
The storm's most intense wind and storm surge came ashore still further north between the small towns of Awendaw and McClellanville. An extraordinary 20-foot storm surge was reported between Cape Romain and Bulls Bay. Most mature trees in the Francis Marion National Forest were uprooted. Many of the stands were old growth longleaf pine, an important habitat for some endangered species. In McClellanville, a small fishing town, residents took refuge in Lincoln High School, and were surprised by the sudden tidal surge which flooded the school. With water pouring into the rooms, the refugees helped one another in pitch darkness to climb into the space in the hanging ceiling above the rooms. All survived.
The Myrtle Beach & Surfside Beach/Garden City/Murrells Inlet areas also took quite a hit from the storm, not so much from wind, but mainly with storm surge. The surge plus the fact that Hugo hit the area at high tide, created a 12 to 14 foot surge. Many beach-front homes built in these areas were destroyed, leaving numerous ones laying across the middle of Ocean Blvd throughout Surfside Beach & Garden City. Telephone poles were standing in a 45 degree angle, and the boulevard was covered in approximately 4 feet of sand. Many homes just blocks from the beach were untouched.
According to Governor Carroll Campbell, there were about 3,000 tornadoes embedded within the hurricane, which accounts for extensive damage in some areas not within the path of the eyewall. The term "tornado" was a misnomer; the intense localized winds are more properly referred to as vortices. (See Hurricane Andrew for more information on hurricane vortices.)
Campbell also stated that enough timber was lost within South Carolina to build a home for every family in West Virginia. An immense salvage effort was undertaken to harvest downed pine trees for pulpwood before they deteriorated to the point where they could not be used. Still standing timber that appeared usable for lumber and plywood frequently had annular separations of the rings that made them dangerous to saw and nearly impossible to cut into plies, so they were also downgraded into pulpwood, leading to such a drop in pulpwood prices that eventually much of the salvage effort ceased.
Inland, the storm destroyed homes, timber, and the area's cotton crop. Rainfall totals associated with Hugo were slightly below the average for a direct United States strike, likely due to the storm's rapid forward motion. The maximum amount measured was 10.28" at Edisto Island, South Carolina.
By the time it reached Charlotte, North Carolina, Hugo was still a Category 1 hurricane and was still strong enough to topple many trees across roads and houses leaving many without power, closing schools for as long as two weeks, and spawning several tornadoes. The storm took Charlotte by surprise; the city is 200 miles (320 km) inland and is frequently a stopover for people fleeing from the coast. Damage to trees was reported across much of western North Carolina.
In all, twenty-nine counties in North Carolina were declared federal disaster areas, with damages in that state alone estimated at $1 billion (1989 US dollars).