Product: Weekly Highlights and Forecasts
:Issued: 2020 Dec 21 0123 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 14 - 20 December 2020
Solar activity was at very low to low levels. Low levels were observed on 14 Dec when Region 2792 (S22, L=103, class/area Bxo/010 on 15 Dec) produced a C4/Sf at 14/1437 UTC. Associated with this event was a Type II radio sweep with an estimated shock velocity of 606 km/s. 15-20 Dec saw solar activity at very low levels. No Earth-directed CMEs were observed.
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 at quiet levels throughout the period. The solar wind environment was at nominal levels with wind speeds between 348-416 km/s, total field ranged between 2-5 nT and the Bz component varied between +/-5 nT. The phi angle was in a predominately positive orientation throughout the period.
Forecast of Solar and Geomagnetic Activity 21 December - 16 January 2021
Solar activity is expected to be at very low levels throughout the period with a slight chance for low levels from 21-31 Dec and 01 Jan and again on 14-16 Jan due to the flare potential from Region 2794 ( S18, L=347, class/area Hsx/120 on 20 Dec).
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels on 21 Dec, 30-31 Dec, and 01-16 Jan. High levels are anticipated on 23-29 Dec due to CH HSS effects.
Geomagnetic field activity is expected to be at unsettled to active levels on 21-26 Dec and 05-06 Jan due to CH HSS influence. G1 (Minor) geomagnetic storms are likely on 23 Dec. Mostly quiet conditions are expected to prevail throughout the remainder of the
outlook period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Dec 21 0123 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-serviceswww.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2020-12-21
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2020 Dec 21 84 12 4
2020 Dec 22 84 8 3
2020 Dec 23 84 18 5
2020 Dec 24 84 15 4
2020 Dec 25 86 10 3
2020 Dec 26 86 8 3
2020 Dec 27 86 5 2
2020 Dec 28 86 5 2
2020 Dec 29 86 5 2
2020 Dec 30 86 5 2
2020 Dec 31 86 5 2
2021 Jan 01 84 5 2
2021 Jan 02 84 5 2
2021 Jan 03 84 5 2
2021 Jan 04 84 5 2
2021 Jan 05 84 10 3
2021 Jan 06 84 10 3
2021 Jan 07 82 5 2
2021 Jan 08 82 5 2
2021 Jan 09 82 5 2
2021 Jan 10 82 5 2
2021 Jan 11 82 5 2
2021 Jan 12 82 5 2
2021 Jan 13 82 5 2
2021 Jan 14 84 5 2
2021 Jan 15 84 5 2
2021 Jan 16 84 5 2
(NOAA)
