Product: Weekly Highlights and Forecasts
:Issued: 2021 Oct 18 0131 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 11 - 17 October 2021
Solar activity was very low with B-class flare activity on 11-12, and 15-17 Oct. Low levels of solar activity were observed on 13-14 Oct due to C-class flare activity. Region 2885 (N15, L=171, class/area=Cro/20 on 13 Oct) produced three C-class flares this period: a C1/Sf flare at 13/2204 UTC, a C2 flare at 14/0134 UTC, and a C1flare at 14/0304 UTC.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was normal to moderate throughout the period.
Geomagnetic field activity reached G1-G2 (Minor-Moderate) geomagnetic storm levels on 12 Oct due to the passage of a CME from 09 Oct. Quiet to active conditions were observed on 17 Oct, also due to the passage of a transient feature. Quiet to unsettled conditions were observed on 11, 13, and16 Oct, while quiet conditions were observed throughout the remainder of the period.
Forecast of Solar and Geomagnetic Activity 18 October - 13 November 2021
Solar activity is expected to be very low to 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 26-28 Oct. Normal to moderate flux levels are expected to continue.
Geomagnetic field activity is expected to reach active levels on 18-19 Oct, and 06 Nov due to the influence of multiple, recurrent CH HSSs. The remainder of the outlook period is expected to be mostly quiet or quiet to unsettled.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2021 Oct 18 0131 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 2021-10-18
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2021 Oct 18 78 12 4
2021 Oct 19 80 12 4
2021 Oct 20 80 8 3
2021 Oct 21 80 8 3
2021 Oct 22 80 8 3
2021 Oct 23 80 5 2
2021 Oct 24 80 5 2
2021 Oct 25 85 10 3
2021 Oct 26 90 5 2
2021 Oct 27 95 5 2
2021 Oct 28 90 5 2
2021 Oct 29 88 5 2
2021 Oct 30 88 5 2
2021 Oct 31 85 5 2
2021 Nov 01 85 5 2
2021 Nov 02 85 8 3
2021 Nov 03 85 5 2
2021 Nov 04 85 5 2
2021 Nov 05 85 5 2
2021 Nov 06 85 12 4
2021 Nov 07 85 10 3
2021 Nov 08 85 8 3
2021 Nov 09 85 5 2
2021 Nov 10 85 5 2
2021 Nov 11 85 5 2
2021 Nov 12 80 5 2
2021 Nov 13 80 5 2
(NOAA)