Highlights of Solar and Geomagnetic Activity 09 - 15 August 2021
Solar activity was low. An isolated C1 flare was observed at 13/2108 UTC from Region 2853 (N22, L=199, class/area, Axx/010 on 14 Aug). No Earth-directed CMEs were observed in available imagery.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached moderate levels throughout the reporting period.
Geomagnetic field activity ranged from quiet to unsettled levels throughout the reporting period due to CH HSS influence.
Forecast of Solar and Geomagnetic Activity 16 August - 11 September 2021
Solar activity is expected to be very low with a chance for C-class flare activity.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach moderate levels throughout the outlook period.
Geomagnetic field activity is expected to reach active levels on 24 Aug and 03 Sep with unsettled levels on 16-17, 23-25 Aug and 02-03, 11 Sep due to recurrent CH HSS activity. Quiet levels are expected
throughout the remainder of the outlook period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2021 Aug 16 0102 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
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