[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jun 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 2018 Jun 27 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2715 (N07W67, Axx/alpha) decayed further and managed only low-level B-class flares. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain very low all three days, with a slight chance for C-class flares on day one (27 Jun).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to high levels with a maximum flux of 2,672 pfu at 26/2110 UTC. The greater than 10 MeV proton flux was at background values.

Forecast: The greater than 2 MeV electron flux is expected to be at moderate to high levels on day one (27 Jun) and increase to high levels on days two and three (28-29 Jun) due to CH HSS effects. The greater than 10 MeV proton flux is expected to continue at background levels all three days.

Solar Wind

24 hr Summary: Solar wind parameters were consistent with CH HSS influences. Total field strength gradually decreased from 11 to 4 nT. The Bz component was variable with no prolonged periods of southward orientation. Solar wind increased to a maximum of near 600 km/s. The phi angle was negative.

Forecast: Elevated solar wind speed is expected to continue all three days (27-29 Jun) as CH HSS influences continue.

Geospace

24 hr Summary: The geomagnetic field was at quiet to active levels due to CH HSS effects.

Forecast: The geomagnetic field is expected to be quiet to active, with a likely period of early G1 storm conditions on days one and two (27-28 Jun) due to CH HSS effects. The geomagnetic field is expected to react at quiet to active levels on day three (29 Jun) as CH HSS influences weaken.

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