The National Hurricane Center has issued updated wind speed probability graphics for Tropical Storm Bertha, providing forecasters and the public with the latest outlook on where tropical-storm-force winds may be felt.
The graphics illustrate the probability of 34-knot winds — the threshold for tropical storm conditions — reaching different locations over a five-day, or 120-hour, forecast window.
According to the National Hurricane Center, the wind speed probability data was last updated on Tuesday, July 21, 2026, at 9:23 a.m. GMT.
Residents in potentially affected areas are encouraged to monitor the latest updates from the National Hurricane Center as the storm continues to develop.
