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1916 Charleston hurricane

Category 3 Atlantic hurricane

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Through High-pressure area and Pascal (unit)

The swath of the hurricane's wind impacts in South Carolina was tightly concentrated around the hurricane's center due to its small size at landfall. The damage in Charleston was widespread but not severe, with most of the damage limited to the downed trees, minor roof and water damage to homes, and shipping damage. Crop damage was severe elsewhere along the coast and farther inland, with a 75–90 percent loss of crops reported north of Charleston along the Santee River. Although the hurricane's winds had tapered off by the time the storm reached North Carolina, the combination of orographic lift and saturated soils induced by an earlier hurricane led to copious rainfall and record-breaking river flooding that began in the southern Blue Ridge Mountains and continued downstream on both sides of the Appalachians. The French Broad River nearly doubled its previous stage record at Asheville, North Carolina, where the floods destroyed numerous buildings. Widespread damage was also wrought to crops, railways, and other infrastructure in the region by the flood-widened rivers. The flooding killed at least 80 people and caused approximately $21 million in damage.

Meteorological history

The 1916 Charleston hurricane was the fourth tropical cyclone of the 1916 Atlantic hurricane season. The Weather Bureau noted that it was the first July hurricane on record to originate from near the Bahamas and strike the South Atlantic U.S. coast. While most storms in this region tend to curve towards the northeast upon tracking into higher latitudes, the hurricane took a direct path into the Appalachian Mountains where it would ultimately dissipate. This unusual track was the result of a high pressure area over the Northeastern United States preventing the storm from progressing poleward. The first point entry for the system in HURDAT lists the cyclone as beginning as a tropical storm on July 11, centered approximately 560 mi (900 km) east of Miami, Florida. Although the Weather Bureau was cognizant of the tropical cyclone's nature, there were no observations of gale-force winds or low corresponding air pressures at the time. A vessel on July 12 near 27°00′N 72°30′W / 27°N 72.5°W, approximately 50 mi (80 km) south of Charleston, South Carolina, provided the first direct report attesting to the tropical cyclone's presence with observed winds reaching gale-force for the first time. The storm's maximum sustained winds increased as it moved northwest; the storm had intensified into a hurricane by 18:00 UTC on July 12. Intensification continued the next day as the hurricane took a more northward trajectory towards the coast of South Carolina.

At 18:00 UTC on July 13, the hurricane attained its peak winds of 115 mph (185 km/h), making it equivalent to a Category 3 hurricane on the Saffir–Simpson scale. These winds were estimated by a reanalysis of the storm conducted by the Atlantic Oceanographic and Meteorological Laboratory (AOML) conducted in 2008, which used a peripheral observed pressure of 961 mbar (hPa; 28.38 inHg) from the ship Hector; the highest maritime winds observed contemporaneously reached only 80 mph (130 km/h). The hurricane held its peak intensity for at least six hours before weakening slightly on its final approach to the South Carolina coast. The hurricane made landfall on Bulls Bay between Charleston, South Carolina, and McClellanville, South Carolina, at around 08:00 UTC on July 14 with maximum sustained winds of 110 mph (180 km/h) and a minimum central pressure of approximately 960 mbar (960 hPa; 28 inHg); this made the storm the equivalent of a high-end Category 2 hurricane on the Saffir–Simpson scale at landfall. The 2008 reanalysis noted that the hurricane may have been stronger than their estimates at landfall. The radius of maximum winds spanned an estimated 23 mi (37 km). At Charleston, the air pressure bottomed out at 983 mbar (29.0 inHg) as the center of the hurricane moved nearby. After moving inland, the storm's winds diminished; they fell below hurricane-force by 18:00 UTC on July 14. The next day, the center of the weakening system crossed into North Carolina. The system was last noted in HURDAT as a tropical depression at 18:00 UTC on July 15 within southwestern North Carolina, after which its remnants diffused over the mountainous region.

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