SFI = 129
A index = 5
K index = 3
SSN = 92
THE IMPACTS HAVE BEGUN: A minor CME hit Earth’s magnetic field on Aug. 17th (0303 UT). It could be the first of several CME strikes in the days ahead. NOAA forecasters say their cumulative effect could cause strong G3-class geomagnetic storms, especially on Aug. 18-19. During such storms naked-eye auroras can descend into the USA as far south as Illinois and Oregon (geomagnetic latitude 50 degrees). Cameras with sensitive night-sky settings may record auroras even farther south than that
that poses a threat for X-class solar flares. Credit: SDO/HMI
NOAA Alerts
Space Weather Message Code: ALTEF3
Serial Number: 3225
Issue Time: 2022 Aug 17 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3224
Begin Time: 2022 Aug 08 1645 UTC
Yesterday Maximum 2MeV Flux: 6039 pfu
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.