The National Hurricane Center has released updated wind speed probability graphics for Tropical Storm Arthur, providing forecasters and the public with the latest information on where tropical-storm-force winds may occur.
The graphics depict the probability of 34-knot winds — the threshold for tropical storm conditions — reaching various 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 Wednesday, June 17, 2026, at approximately 2:56 p.m. GMT.
Residents in potentially affected areas are encouraged to monitor the latest updates from the National Hurricane Center as Tropical Storm Arthur continues to develop.
