Product: Weekly Highlights and Forecasts
:Issued: 2020 Aug 31 0137 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 24 - 30 August 2020
Solar activity was very low for the highlight period. No spotted regions were present on the visible disk. There were no Earth-directed CMEs observed during the period.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels on 24-29 Aug. High levels were observed on 30 Aug with a peak flux of 2,800 pfu observed at 30/1845 UTC.
Geomagnetic field activity was at quiet levels on 24-26 Aug under a nominal solar wind environment. Activity levels increased to unsettled on 27 Aug as a positive polarity CH HSS moved into a geoeffective position. G1 (minor) storm levels were observed on 28 Aug with unsettled to the active conditions observed on 29-30 Aug, all due to positive polarity CH HSS influences. During this period of activity, solar wind speeds reached a peak of 530 km/s at 29/0631 UTC, total field reached a maximum of 11nt on mid to late 28 Aug while the Bz component reached a maximum southward extent of -8 nT during that same time frame. Phi angle was in a mostly negative solar sector through about midday on 25 Aug when it switched to a predominately positive orientation and through the remainder of the period.
Forecast of Solar and Geomagnetic Activity 31 August - 26 September 2020
Solar activity is expected to be very low for the outlook period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at moderate to high levels on 31 Aug - 07 Sep and again on 26 Sep due to recurrent CH HSS influences. The remainder of the period is expected to be at normal to moderate levels.
Geomagnetic field activity is expected to be at unsettled to active levels on 31 Aug - 02 Sep, unsettled levels on 18-19 Sep and unsettled to active levels on 23-26 Sep, all due to recurrent CH HSS influences. The remainder of the outlook period is expected to be at quiet levels.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Aug 31 0137 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2020-08-31
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2020 Aug 31 70 10 3
2020 Sep 01 70 12 4
2020 Sep 02 70 10 3
2020 Sep 03 70 5 2
2020 Sep 04 70 5 2
2020 Sep 05 70 5 2
2020 Sep 06 70 5 2
2020 Sep 07 70 5 2
2020 Sep 08 70 5 2
2020 Sep 09 70 5 2
2020 Sep 10 70 5 2
2020 Sep 11 70 5 2
2020 Sep 12 70 5 2
2020 Sep 13 70 5 2
2020 Sep 14 70 5 2
2020 Sep 15 70 5 2
2020 Sep 16 70 5 2
2020 Sep 17 70 5 2
2020 Sep 18 70 8 3
2020 Sep 19 70 8 3
2020 Sep 20 70 5 2
2020 Sep 21 70 5 2
2020 Sep 22 70 5 2
2020 Sep 23 70 8 3
2020 Sep 24 70 10 4
2020 Sep 25 70 14 4
2020 Sep 26 70 10 3
(NOAA)
