[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2021 Jan 18 1230 UTC

[nw7us@sunspotwatch.com]

This e-mail posting is from the Radio Propagation Reflector that you're 
currently subscribed to.  Refer to the end of this e-mail for directions on how 
to change your subscription options, or to unsubscribe.
_______________________-start-_________________

Here is the current forecast discussion on space weather and geophysical activity, issued 2021 Jan 18 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2796 (S21W38) decayed to plage and produced a low-level B-class flare. New Region 2797 (S18E68, Hsx/Alpha) rotated onto the SE limb and has been inactive. No Earth-directed CMEs were observed in available imagery.

Forecast: Solar activity is expected to remain at very low levels on 18-20 Jan.

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux reached moderate levels and the greater than 10 MeV proton flux was at background values.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels on 18-19 Jan. Moderate to high levels are expected by 20 Jan due to CH HSS influence. The greater than 10 MeV proton flux is expected to persist at background levels.

Solar Wind

24 hr Summary: Solar wind parameters remained at nominal levels through the period. Solar wind speeds slowly decreased through the period from 305 km/s to end-of-period speeds near 275 km/s. Total field remained at and below 5 nT and the Bz component varied between +1 to -4 nT. The phi angle was in a predominately positive orientation.

Forecast: Solar wind parameters are expected to become enhanced on 18 Jan. A negative polarity CH HSS extension off the southern crown is expected to move into a geoeffective position, creating enhancements in the solar wind parameters. Enhancements are expected to continue through 20 Jan with additional HSS activity from positive polarity CHs in the northern hemisphere.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be unsettled with isolated active periods likely on 18-20 Jan due to CH HSS influence.

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: + https://Twitter.com/NW7US + 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 ..

We're on Facebook: http://NW7US.us/swhfr

Live data: SunSpotWatch.com

_______________________________________________
Propagation mailing list
Propagation@contesting.com

To change your subscription settings, or to unsubscribe, visit:
http://lists.contesting.com/mailman/listinfo/propagation