Pages

Monday, August 16, 2021

Weekly Propagation Forecast Bulletins

 



Product: Weekly Highlights and Forecasts

:Issued: 2021 Aug 16 0102 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 August 2021

Solar activity was low. An isolated C1 flare was observed at 13/2108 UTC from Region 2853 (N22, L=199, class/area, Axx/010 on 14 Aug). No Earth-directed CMEs were observed in available imagery. 

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached moderate levels throughout the reporting period. 

Geomagnetic field activity ranged from quiet to unsettled levels throughout the reporting period due to CH HSS influence. 

Forecast of Solar and Geomagnetic Activity 16 August - 11 September 2021

Solar activity is expected to be very low with a chance for C-class flare activity. 

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach moderate levels throughout the outlook period. 

Geomagnetic field activity is expected to reach active levels on 24 Aug and 03 Sep with unsettled levels on 16-17, 23-25 Aug and 02-03, 11 Sep due to recurrent CH HSS activity. Quiet levels are expected
throughout the remainder of the outlook period. 

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2021 Aug 16 0102 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 2021-08-16
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2021 Aug 16      74           8          3
2021 Aug 17      73           8          3
2021 Aug 18      73           5          2
2021 Aug 19      73           5          2
2021 Aug 20      73           5          2
2021 Aug 21      73           5          2
2021 Aug 22      72           5          2
2021 Aug 23      73           8          3
2021 Aug 24      73          12          4
2021 Aug 25      73           8          3
2021 Aug 26      73           5          2
2021 Aug 27      73           5          2
2021 Aug 28      73           5          2
2021 Aug 29      73           5          2
2021 Aug 30      74           5          2
2021 Aug 31      74           5          2
2021 Sep 01      74           5          2
2021 Sep 02      73           8          3
2021 Sep 03      73          12          4
2021 Sep 04      73           5          2
2021 Sep 05      73           5          2
2021 Sep 06      73           5          2
2021 Sep 07      73           5          2
2021 Sep 08      73           5          2
2021 Sep 09      73           5          2
2021 Sep 10      73           5          2
2021 Sep 11      73           8          3
(NOAA)