[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2021 Oct 27 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 Oct 27 1230 UTC.

Solar Activity

24 hr Summary: Solar activity reached moderate levels. Region 2891 (N19E72, Cao/beta) produced an M1 flare (Minor) radio blackout at 26/1557 UTC, as well as several C-class flares. Region 2887 (S27E12, Dhi/beta-gamma) produced the vast majority of the remainder of the flares throughout the period, the strongest being a C8/Sf flare at 27/0608 UTC. The remaining four numbered regions on the visible disk were mostly inactive and unchanged. Several CMEs were observed in Lasco coronagraph imagery, but they were all directed in an easterly direction or away from the Earth. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to continue at low levels 27-29 Oct, with a chance for R1-R2 (Minor-Moderate) radio blackouts on 27 Oct. Chances for R1-R2 (Minor-Moderate) radio blackouts will decrease slightly 28-29 Oct as region 2891 makes it way away from the north eastern limb.

Energetic Particle

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

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels over 27-29 Oct and the greater than 10 MeV proton flux is expected to remain at background levels.

Solar Wind

24 hr Summary: Solar wind parameters continued near background levels. Total field strength averaged near 5 nT and the Bz component had a maximum southward deflection briefly to -4 nT. Solar wind speeds began the period under 350 km/s before increasing slightly to average just under 400 km/s around the turn of the UT day. Phi was predominantly in a negative solar sector.

Forecast:

A near-background solar wind regime is expected to continue, with weak enhancements possible due to weak CH HSS influence, through 29 Oct.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: Quiet levels are expected, with isolated unsettled periods possible, on 27-29 Oct due to weak 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: + 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