The National Hurricane Center has released updated wind speed probability graphics for Tropical Storm Arthur, providing forecasters and the public with a look at where tropical-storm-force winds may develop over the coming days.
The graphics illustrate the probability of 34-knot winds — the threshold for tropical storm conditions — affecting different areas within a 120-hour forecast window.
According to the National Hurricane Center, the wind speed probability data was last updated Wednesday, June 17, 2026, at approximately 9:26 p.m. GMT.
Residents in coastal areas are encouraged to monitor the latest updates from the National Hurricane Center as the storm continues to develop.
