Product: Weekly Highlights and Forecasts
:Issued: 2020 Sep 28 0301 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 21 - 27 September 2020
Solar activity was very low on 21-24 and 26-27 Sep. Solar activity reached low levels on 25 Sept when Region 2773 (N28, L=083, class/area=Bxo/10 on 23 Sep) produced a single C1 flare at 0038 UTC. No Earth-directed CMEs were detected this period.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on 24-27 Sept. The normal to moderate flux levels were observed throughout the remainder of the period.
Geomagnetic field activity reached G1-G2 (Minor-Moderate) storm levels on 27 Sept, with G1 (Minor) storm levels were observed on 24-26 Sept, and are due to the influences of a pair of positive polarity coronal hole high speed streams. Active conditions were observed on 23 Sept. Quiet and quiet to the unsettled conditions prevailed throughout the remainder of the week.
Forecast of Solar and Geomagnetic Activity 28 September - 24 October 2020
Solar activity is expected to be very low throughout the outlook period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 28 Sept-10 Oct and 21-24 Oct. Normal and normal to moderate flux levels are expected to persist during the remainder of the outlook period.
Geomagnetic field activity is anticipated to reach G1-G2 (Minor-Moderate) storm levels on 28-29 Sept, with G1 at Minor storm levels likely on 30 Sept, and 21-23 Oct, due to CH HSS influence. The active conditions are likely on 01, 20, and 24 Oct. Quiet and quiet to unsettled conditions are expected to prevail throughout the remainder of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Sep 28 0301 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 2020-09-28
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2020 Sep 28 72 38 6
2020 Sep 29 72 38 6
2020 Sep 30 72 26 5
2020 Oct 01 72 15 4
2020 Oct 02 72 10 3
2020 Oct 03 72 5 2
2020 Oct 04 72 5 2
2020 Oct 05 70 5 2
2020 Oct 06 70 5 2
2020 Oct 07 70 5 2
2020 Oct 08 70 5 2
2020 Oct 09 70 5 2
2020 Oct 10 70 5 2
2020 Oct 11 70 10 3
2020 Oct 12 70 5 2
2020 Oct 13 70 5 2
2020 Oct 14 70 5 2
2020 Oct 15 70 5 2
2020 Oct 16 70 5 2
2020 Oct 17 70 5 2
2020 Oct 18 70 5 2
2020 Oct 19 72 5 2
2020 Oct 20 72 10 4
2020 Oct 21 72 18 5
2020 Oct 22 72 20 5
2020 Oct 23 72 24 5
2020 Oct 24 72 16 4
(NOAA)
