Product: Weekly Highlights and Forecasts
:Issued: 2021 Jan 04 0144 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 28 December - 03 January 2021
Solar activity was very low throughout the period. Regions 2794 (S16, L=346, class/area=Hsx/180 on 28 Dec) and 2795 (S19, L=317, class/area=Cao/beta on 29 Dec) produced only B-class flare activity throughout the week.
Multiple filament eruptions were observed between S30-50, near center disk, on 01-02 Jan. Two CME signatures with likely earth-directed components were detected in LASCO C2 imagery at 01/2312 UTC and 02/1136 UTC. CME analysis and model outputs suggest
arrival of these CMEs late on 05 Jan/early on 06 Jan.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels throughout the period.
Geomagnetic field activity was quiet to unsettled on 29-30 Dec, and quiet throughout the remainder of the period.
Forecast of Solar and Geomagnetic Activity 04 January - 30 January 2021
Solar activity is expected to be very low, with a slight chance for C-class flare activity, 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 09-12 and 20-22 Jan. Normal and normal-to-moderate flux levels are expected to prevail throughout the remainder of the outlook period.
Geomagnetic field activity is expected to reach active levels on 05 Jan, and G1 (Minor) geomagnetic storm levels on 06 Jan, due to the anticipated arrival of a pair of CMEs from 01-02 Jan. Active conditions are expected on 17-20 Jan due to the influence of a
positive polarity CH HSS. Quiet and quiet-to-unsettled conditions are expected to prevail throughout the outlook period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2021 Jan 04 0144 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 2021-01-04
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2021 Jan 04 80 5 2
2021 Jan 05 78 10 4
2021 Jan 06 78 18 5
2021 Jan 07 78 8 3
2021 Jan 08 78 5 2
2021 Jan 09 78 5 2
2021 Jan 10 78 5 2
2021 Jan 11 78 5 2
2021 Jan 12 78 5 2
2021 Jan 13 78 5 2
2021 Jan 14 78 5 2
2021 Jan 15 80 5 2
2021 Jan 16 80 5 2
2021 Jan 17 82 10 4
2021 Jan 18 82 10 4
2021 Jan 19 82 10 4
2021 Jan 20 82 10 4
2021 Jan 21 82 5 2
2021 Jan 22 82 5 2
2021 Jan 23 82 5 2
2021 Jan 24 82 5 2
2021 Jan 25 82 8 3
2021 Jan 26 82 8 3
2021 Jan 27 82 5 2
2021 Jan 28 80 5 2
2021 Jan 29 80 5 2
2021 Jan 30 80 5 2
(NOAA)
