:Product: Weekly Highlights and Forecasts
:Issued: 2021 Dec 27 0408 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
20 - 26 December 2021
Solar activity was at low levels with C-class flare activity on
23-26 Dec. Moderate levels of solar activity were observed on 20-22
Dec due to M-class flare activity. Region 2908 (S20, L=300,
class/area=Dai/100 on 22 Dec) produced M1/1n flares at 20/1136 and
22/0706 UTC while Region 2916 (S18, L=194, class/area=Ekc/450 on 25
Dec) produced two M1 flares at 21/0750 and 21/1144 UTC. The
remainder of the period was dominated by frequent C-class flare
activity primarily from Regions 2908 and 2916, in addition to
Regions 2907 (S22, L=313, class/area=Eki/300 on 23 Dec) 2918 (N19,
L=211, class/area=Dki/280 on 25 Dec).
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was
normal to moderate on 20-22 Dec and at high levels on 23-26 Dec
following CH HSS-associated enhancements.
Geomagnetic field activity reached active levels on 20-21 Dec and
unsettled levels on 22 Dec due to the influences of a negative
polarity CH HSS. Quiet to unsettled levels were observed on 25 Dec
due to what appeared to be the possible arrival of a CME from 21
Dec. Quiet field conditions and a nominal solar wind regime
dominated the remainer of the period.
Forecast of Solar and Geomagnetic Activity
27 December - 22 January 2022
Solar activity is expected to be mostly at very low to low levels,
with isolated M-class flare activity possible, 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 27 Dec-03 Jan and 17-22 Jan. Normal
to moderate levels are expected prevail throughout the remainder of
the period.
Geomagnetic field activity is expected to reach active levels on
25-29 Dec and 16 Jan due to CH HSS influences. Quiet to unsettled or
generally quiet conditions are expected for the remainder of the
period.
:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2021 Dec 27 0409 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2021-12-27
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2021 Dec 27 125 5 2
2021 Dec 28 125 12 4
2021 Dec 29 122 12 4
2021 Dec 30 120 8 3
2021 Dec 31 120 8 3
2022 Jan 01 115 8 3
2022 Jan 02 110 8 3
2022 Jan 03 100 5 2
2022 Jan 04 95 5 2
2022 Jan 05 90 5 2
2022 Jan 06 90 5 2
2022 Jan 07 92 5 2
2022 Jan 08 100 5 2
2022 Jan 09 105 5 2
2022 Jan 10 110 5 2
2022 Jan 11 115 10 3
2022 Jan 12 115 10 3
2022 Jan 13 115 5 2
2022 Jan 14 118 5 2
2022 Jan 15 118 8 3
2022 Jan 16 122 12 4
2022 Jan 17 128 8 3
2022 Jan 18 130 8 3
2022 Jan 19 130 5 2
2022 Jan 20 125 5 2
2022 Jan 21 125 5 2
2022 Jan 22 120 5 2
