DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

DONKI: View SW Activity

High Speed Stream
Catalog: M2M_CATALOG
Event Time: 2026-06-24T16:18Z ( SOLAR-1: MAG )

All Detecting Spacecrafts:

SOLAR-1: MAG

ACE: SWEPAM

ACE: MAG

SOLAR-1: SWiPS

IMAP: MAG

IMAP: SWAPI

Activity ID: 2026-06-24T16:18:00-HSS-001 (version 2)
Event End Time:
Peak Solar Wind Speed (km/s): 715.0
Date of first appearance of coronal hole in EUV at east limb:
Note: Significant increase in solar wind speed (>600 km/s), temperature (>500k K), and density. It is possible this coronal hole high speed stream signature is mixed into a glancing blow arrival starting around 2026-06-24T04:05Z. The associated coronal hole is seen crossing the central meridian in SDO AIA 193 on 2026-06-21.

Version 1 submitted on 2026-06-24T23:25Z by Carina Alden
Version 2 submitted on 2026-06-26T18:18Z by Mary Aronne

No Notification has been sent for this activity yet.

All directly linked activities:

2026-06-24T21:35:00-MPC-001

2026-06-26T13:45:00-RBE-001

Comments by users:

0 comment received.

Insert title here

The Moon to Mars Space Weather Analysis Office and other entities provide data to DONKI as a courtesy to the community.
By visiting this site, you acknowledge that you understand and agree to the Important Disclaimer Notice

If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center (https://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Policy