[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2021 Jun 08 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 Jun 08 1230 UTC.

Solar Activity

24 hr Summary: Solar activity reached low levels due to an isolated C1 flare that occurred at 08/1053 UTC from just beyond the west limb, possibly former Region 2831 (N24, L=79). Region 2829 (S18W23, Dso/beta) exhibited increased separation between leader and trailer spots, and underwent some dissipation. Region 2830 (S26W79, Cao/beta) was considerably foreshortened as it rotated closer to the limb. Both regions were inactive. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be very low on 08-10 Jun with a chance for C-class flares on 08 Jun decreasing to a slight chance on 09-10 Jun.

Energetic Particle

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

Forecast: The greater than 2 MeV electron flux is expected to be normal to moderate over 08-10 Jun and the greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters were indicative of CH HSS influences. Total IMF strength increased early in the period and reached a maximum of 12 nT, before it weakened and settled at about 3 to 4 nT after 08/0000 UTC. The Bz component was variable with a maximum southward deflection of -12 nT near 07/1751 UTC. The Bz component became more neutral with only weak deviations after 07/2300 UTC. Solar wind speed increased from ~365 km/s and reached speeds of 556 km/s by 08/0055 UTC. The phi angle was primarily negative, with a few brief positive sector shifts.

Forecast: Solar wind parameters are expected to remain slightly enhanced through 08 Jun with continuing negative polarity CH HSS activity. Continuing, but weakening enhancements in solar wind speed are expected on 09-10 Jun as CH HSS conditions persist, but wane.

Geospace

24 hr Summary: The geomagnetic field was quiet to active in varying response to CH HSS effects.

Forecast: The geomagnetic field is expected to respond with quiet to unsettled conditions, with an isolated period of active levels possible and a slight chance of G1 (Minor) geomagnetic storm levels due to CH HSS influences on 08 Jun. Unsettled conditions are likely on 09-10 Jun as CH HSS effects linger, but weaken further.

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