[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2015 Jun 04 1240 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 2015 Jun 04 1240 UTC.

Solar Activity

24 hr Summary: Solar activity was at low levels. New Region 2361 (N16E62 Dac/beta) produced a C8/Sf flare at 04/0947 UTC, the largest of the period. This region showed recent growth in the trailer and intermediate spots. Region 2360 (N39E46 Dai/beta) also displayed minor growth behind the leader spot. All other regions remained stable. Several filaments/prominences were observed erupting from or near the limbs of the visible disk, but no Earth-directed CMEs were observed in SOHO/LASCO coronagraph data.

Forecast: Solar activity is expected to be very low with an increasing chance for isolated C-flares as a couple of regions return over the next 1-3 days.

Energetic Particle

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

Forecast: The greater than 2 MeV electron flux is expected to be at normal levels for the forecast period (04-06 Jun). The greater than 10 MeV proton flux is expected to remain at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters continued at nominal levels. Solar wind speed at ACE decreased steadily over the past day from around 330 km/s to 250 km/s. Total magnetic field strength remained steady around 4-5 nT through the period. The Bz component was predominantly positive and saw a maximum southward deflection of around -2 nT. The phi angle remained oriented in a positive (away) sector.

Forecast: Solar wind parameters are expected to continue at nominal levels for days one and two of the forecast period (04-05 Jun). Day three (06 Jun) may see the return of recurrent structures in the solar sector.

Geospace

24 hr Summary: The geomagnetic field was at quiet levels.

Forecast: The geomagnetic field is expected to remain at mostly quiet levels for the first two days of the forecast period (04-05 Jun). Day three (06 Jun) is forecast to be quiet to unsettled, due to multiple anticipated recurrent solar sector boundary crossings.

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