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 graphic shows the probability of 34-knot winds — the threshold for tropical storm force — occurring within a 120-hour forecast window. The imagery was last updated on Tuesday, July 21, 2026, at 9:22 p.m. GMT.
Residents along the East Coast, including those on the Delmarva Peninsula, should monitor the latest updates from the National Hurricane Center as the storm continues to develop.
