[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2017 Dec 31 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 2017 Dec 31 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. A new region of emerging flux was observed in the NE quadrant and will be assigned an active region number if it persists. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain very low all three days (31 Dec-02 Jan).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached moderate 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 all three days (31 Dec-02 Jan) with a chance for high levels on day three (02 Jan). The greater than 10 MeV proton flux is expected to remain at background levels all three days.

Solar Wind

24 hr Summary: Solar wind parameters, as measured by the DSCOVR spacecraft, reflected a nominal environment. Total magnetic field strength was between 3-6 nT. Solar wind speeds were mostly between 350-400 km/s. The phi angle was predominantly oriented in the negative sector.

Forecast: The solar wind environment is expected to see an enhancement from a positive polarity CH HSS late on day one (31 Dec). Enhancements are expected to continue into days two and three (01-02 Jan).

Geospace

24 hr Summary: The geomagnetic field was quiet to unsettled.

Forecast: The geomagnetic field is expected to transition from quiet conditions into active late on day one (31 Dec) due to the onset of a recurrent CH HSS. G1 (Minor) storm conditions are likely on day two (01 Jan) as CH HSS influence strengthens. Quiet to active conditions are expected on day three (02 Jan) as CH HSS effects begin to wane.

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

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

-=-=-=-=-=-

What's the difference between CB & amateur (ham) radio? Here ia a video with an opinion by our curator, Tomas (amateur radio operator, NW7US): Did NCIS TV Show Malign the Amateur Radio Service? https://www.youtube.com/watch?v=pIWJ7kKbxiM?t=1m33s

-=-=-=-=-=-

If you are on Twitter, please follow these two users:

+ https://Twitter.com/NW7US + https://Twitter.com/hfradiospacewx

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