|
Here is this week's space weather and geophysical report, issued 2022 Nov 28 0527 UTC.
Highlights of Solar and Geomagnetic Activity 21 - 27 November 2022
Solar activity was at very low levels on 24, 26, and 27 Nov. Low levels were reached on 21-23 and 25 Nov. Regions 3149 (N21, L=163, class/area Dsi/170 on 22 Nov) and 3151 (S16, L=153, class/area Cao/080 on 26 Nov) produced the majority of the C-class flares. The largest was a C7/Sf at 22/0727 UTC from Region 3151. Associated with the C7 flare was a CME first observed in SOHO LASCO C2 imagery at 22/0800 UTC with the majority of the ejecta moving south of the ecliptic with a possible glancing blow on 27 Nov. However, no definitive signature could be seen in solar wind data.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal-moderate levels on 21-26 Nov. High levels occurred on 27 Nov, with a peak flux of 2,400 pfu 27/1730 UTC, due to CH HSS influence.
Geomagnetic field activity ranged from quiet to active levels. Solar wind parameters began under the influence of a weak negative polarity CH HSS. Solar wind speed ranged from 400-460 km/s on 21 Nov followed by a decrease to nominal levels through late on 24 Nov. Total field was initially around 11 nT, but decreased to under 5 nT by late on 21 Nov. The geomagnetic field responded with quiet to active levels on 21 Nov and quiet levels on 22-23 Nov. Around 24/1800 UTC, total field and solar wind speed began to increase again as a positive polarity CH HSS moved into geoeffective position. Total field increased to a maximum of 15 nT at 24/2320 UTC while solar wind speed increased to a maximum of 624 km/s at 26/1845 UTC. Positive polarity CH HSS influence continued through the end of the period. The geomagnetic field responded with quiet to unsettled on 24 Nov and quiet to active levels on 25-27 Nov.
Forecast of Solar and Geomagnetic Activity 28 November - 24 December 2022
Solar activity is expected to be at very low to low levels. M-class (R1-R2, Minor-Moderate) flares are possible on 29 Nov-12 Dec with the return of old Regions 3140 (N25, L=326) and 3141 (N14, L=318).
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be is expected to reach high levels on 28 Nov-07 Dec and again on 24 Dec due to CH HSS influence.
Geomagnetic field activity is expected to be at unsettled to active levels on 28 Nov-03 Dec, 08-09 Dec, 17-18 Dec, and 22-24 Dec with G1 (Minor) storm levels expected on 28 Nov due to recurrent CH HSS effects.
Don't forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users:
1. https://Twitter.com/NW7US
2. https://Twitter.com/hfradiospacewx
- - - - - - - - - - - - -
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
- - - - - - - - - - - - -
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
![Weekly Propagation Summary - 2022 Nov 28 16:10 UTC]()
Live data and images: SunSpotWatch.com
|