The National Hurricane Center is closely monitoring Tropical Storm Bertha, releasing updated wind speed probability graphics to help the public understand the storm’s potential reach.
The latest graphics show the probability of 34-knot (approximately 39 mph) or greater winds occurring within a 120-hour forecast window. These visuals are designed to give residents and emergency managers a clearer picture of where tropical-storm-force winds could be felt.
According to the National Hurricane Center, the wind speed probability data was last updated on Wednesday, July 22, 2026, at 9:22 PM GMT. Forecasters continue to monitor the storm’s development and track closely.
Residents in potentially affected coastal areas are encouraged to stay up to date with the latest advisories from the National Hurricane Center as Tropical Storm Bertha continues to be tracked.
