[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2016 May 28 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 2016 May 28 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Only B-class flares were observed. Region 2548 (N13W55, Dsi/beta) remained relatively stable. An unnumbered spotted region developed near S15E30, but has remained inactive. No Earth-directed CMEs were observed.

Forecast: Solar activity is expected to be very low with a chance for C-class flares throughout the forecast period (28-30 May) due to the flare history of Region 2548.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal levels. The greater than 10 MeV proton flux continued at background values.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels on days one through three (28-30 May). The greater than 10 MeV proton flux is expected to remain at background values.

Solar Wind

24 hr Summary: The solar wind environment was enhanced by the influences of a negative polarity CH HSS. Solar wind speeds were elevated in the 450-500 km/s range for most of the period. Bt was steady between 7-10 nT while the Bz component was variable with a maximum southward deviation of -5 nT. The phi angle was negative throughout the reporting period. Forecast: The solar wind environment is expected to remain slightly enhanced under the effects of the above mentioned CH HSS through the early part of day one (28 May). Late on day two (29 May), an additional enhancement is anticipated due to the arrival of another negative-polarity CH HSS located in the northwest quadrant of the solar disk.

Geospace

24 hr Summary: The geomagnetic field reached active levels during the 28/0600-0900 UTC synoptic period due to a sustained southward Bz component.

Forecast: The geomagnetic field is expected to be mostly quiet to active, with an isolated period of G1 (Minor) storm levels possible on day one (28 May) as CH HSS effects begin to wane. Mostly quiet to unsettled conditions are expected on day two (29 May) with active periods late in the day due to the anticipated arrival of another negative polarity CH HSS. Unsettled to active conditions are expected on day three (30 May) with an isolated minor storm period likely due to continued 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

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

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