Tropical Storm Bertha: Latest Updates, Forecast, and Impact

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7/23/2026 · 👁 2 · tropical-storm-berthabertha-updatetropical-storm-bertha-forecasttropical-storm-bertha-radartropical-storm-bertha-landfalltropical-storm-bertha-impacttexas-coast-stormlouisiana-flooding
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What is Tropical Storm Bertha?
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Tropical Storm Bertha was a short-lived but impactful tropical cyclone that formed rapidly off the coast of the southeastern United States in late May 2020. While it didn't reach hurricane strength, its quick development and landfall brought significant rainfall and some wind impacts to parts of the Carolinas.

Formation and Rapid Intensification

Bertha originated from a broad area of low pressure that had been lingering near the Florida Straits and the Bahamas. This system slowly organized as it moved northward. On May 27, 2020, the National Hurricane Center (NHC) began issuing advisories on Tropical Depression Two, noting its potential for rapid development.

The depression quickly gained strength as it moved over the warm waters of the Gulf Stream. Within hours, it was upgraded to Tropical Storm Bertha on the morning of May 27, just before making landfall. This rapid intensification was a key characteristic of Bertha, demonstrating how quickly tropical systems can form and pose a threat, even early in the hurricane season.

Landfall and Impacts

Tropical Storm Bertha made landfall near Mount Pleasant, South Carolina, around 9:30 AM EDT on May 27, 2020. At the time of landfall, it had maximum sustained winds of approximately 50 mph (85 km/h).

The primary impacts of Bertha were:

  • Heavy Rainfall: Bertha brought significant rainfall to coastal and inland areas of South Carolina and parts of North Carolina. Accumulations generally ranged from 3 to 6 inches (75 to 150 mm), with isolated higher amounts. This led to localized flash flooding, particularly in urban and low-lying areas.
  • Gusty Winds: While not extremely strong, Bertha's winds caused some downed trees and power outages, primarily in the immediate vicinity of its landfall.
  • Rip Currents and Coastal Hazards: Even before landfall, the precursor disturbance and Bertha's proximity to the coast generated dangerous rip currents along the beaches of the Carolinas and Georgia.

Dissipation

After making landfall, Bertha quickly weakened as it moved inland over South Carolina. Its circulation rapidly deteriorated, and it was downgraded to a tropical depression just hours after landfall. By the evening of May 27, the NHC issued its final advisory on Bertha as it degenerated into a post-tropical remnant low over western North Carolina. The remnants continued to produce some rainfall as they moved northward through the Appalachian Mountains.

Significance

Tropical Storm Bertha was notable for several reasons:

  • Early Season Storm: Its formation in late May marked an early start to the 2020 Atlantic hurricane season, preceding the official June 1 start date.
  • Rapid Development: It served as a reminder of how quickly tropical systems can organize and become a threat, leaving little time for preparation.
  • Flash Flood Threat: Despite its relatively weak wind speeds, Bertha highlighted the significant flash flood threat posed by even weaker tropical cyclones, especially those moving slowly or bringing persistent rainfall.

While Bertha was not a major hurricane, its existence and impacts underscored the importance of staying vigilant throughout the entire hurricane season, even for systems that don't grab headlines with extreme wind speeds.

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