Wednesday, November 18, 2020

Weekly Propagation Forecast Bulletins

 


Product: Weekly Highlights and Forecasts
:Issued: 2020 Nov 16 0125 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 09 - 15 November 2020

Solar activity was at very low to low levels during the period. Very low levels were observed on 09 Nov and 13-15 Nov, while low levels occurred on 10-12 Nov. Region 2781 (S23, L=255, class/area Eki/475 on 06 Nov) produced a C1/Sf flare observed at 10/1946 UTC. The C-class activity was observed on 11-12 Nov from new Region 2782 (S31, L=155, class/area Cro/030 on 12 Nov), the largest was a C2/Sf flare observed at 11/1912 UTC. No Earth-directed CME activity was observed during the period. 

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on 11 Nov with a maximum flux of 2,250 pfu observed at 11/1655 UTC. Normal to moderate levels were observed on 09-10 Nov and 12-15 Nov. 

Geomagnetic field activity was quiet throughout the period. A nominal solar wind regime dominated the period with a mostly neutral IMF. Solar wind speeds generally ranged between about 295 km/s to 445 km/s under a predominately negative phi orientation. 

Forecast of Solar and Geomagnetic Activity 16 November - 12 December 2020

Solar activity is expected to be very low from 16-27 Nov and 12 Dec. The return of old Region 2781 (S23, L=255) from 28 Nov - 11 Dec is expected to increase solar activity levels to very low to low. 

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 16 - 20 Nov and again on 29 Nov - 12 Dec. High levels are expected from 21-28 Nov due to recurrent CH HSS influence. 

Geomagnetic field activity is expected to be at quiet to unsettled levels on 21 - 25 Nov and again on 03-04 Dec due to recurrent CH HSS influence. Active intervals are possible on 22, 24 and 25 Nov. Mostly quiet conditions are expected to prevail for 16-20 Nov, 26 Nov - 02 Dec and 05-12 Dec. 

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Nov 16 0125 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 2020-11-16
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2020 Nov 16      75           5          2
2020 Nov 17      72           5          2
2020 Nov 18      72           5          2
2020 Nov 19      70           5          2
2020 Nov 20      70           5          2
2020 Nov 21      70           8          3
2020 Nov 22      70          12          4
2020 Nov 23      70           8          3
2020 Nov 24      70          10          4
2020 Nov 25      70          12          4
2020 Nov 26      72           5          2
2020 Nov 27      72           5          2
2020 Nov 28      75           5          2
2020 Nov 29      75           5          2
2020 Nov 30      75           5          2
2020 Dec 01      75           5          2
2020 Dec 02      75           5          2
2020 Dec 03      75           8          3
2020 Dec 04      75           8          3
2020 Dec 05      75           5          2
2020 Dec 06      75           5          2
2020 Dec 07      75           5          2
2020 Dec 08      75           5          2
2020 Dec 09      72           5          2
2020 Dec 10      72           5          2
2020 Dec 11      70           5          2
2020 Dec 12      70           5          2
(NOAA)