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 dangerous winds may develop.
The graphic, last updated on Thursday, July 23, 2026 at 3:22 a.m. GMT, displays the probability of 34-knot winds — roughly 39 miles per hour — occurring within a 120-hour forecast window.
Residents along the Atlantic coast are encouraged to keep a close eye on official National Hurricane Center updates as the storm continues to develop and forecasts are refined.
