Space Weather Prediction Center

03/11/2026 | News release | Distributed by Public on 03/11/2026 10:07

CH HSS Influences Expected Going into the Weekend (13-15 March)

A coronal hole high speed stream (CH HSS) increases the probability of period(s) of G1-Minor storm levels Friday, 13 March. Effects of the CH HSS are anticipated to continue through the weekend, with active conditions the most likely, but a chance for isolated G1 levels exists on Saturday. By Sunday CH HSS influences should weaken and quiet to unsettled levels are most likely, with a chance for an isolated active period.

Space Weather Prediction Center published this content on March 11, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on March 11, 2026 at 16:07 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]