[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jan 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 2018 Jan 08 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2693 (N20, L=332) rotated beyond the west limb this period and is no longer visible. No Earth-directed CMEs were observed in available coronagraph imagery. Forecast: Solar activity is expected to continue at very low levels throughout the forecast period (08-10 Jan).

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 values.

Forecast: The greater than 2 MeV electron flux is expected to continue at normal levels on day one (08 Jan), with moderate levels likely on days two and three (09-10 Jan) due to an enhanced solar wind environment. The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 hr Summary: A weak interplanetary shock was observed in solar wind data at around 08/0600 UTC, which was attributed to the influence of a positive polarity CH HSS. Solar wind speeds increased from around 350 km/s to a peak value of 385 km/s following the shock. Total field (Bt) reached 15 nT shortly after the shock was observed and Bz was predominately northward throughout the period. Phi angle orientation transitioned from a negative to positive at around 08/0800 UTC.

Forecast: Solar wind parameters are expected to remain slightly enhanced for the remainder of day one (08 Jan) through early day two (09 Jan) due to the continued influence of a recurrent, positive polarity CH HSS. A decrease in solar wind parameters is expected after midday on day two (09 Jan) through day three (10 Jan) as CH HSS influence wanes and subsides.

Geospace

24 hr Summary: The geomagnetic field was generally quiet with an isolated unsettled period observed between 08/0600-0900 UTC due to the influence of a positive polarity CH HSS.

Forecast: Quiet to unsettled conditions are expected on days one and two (08-09 Jan) due to the effects of a positive polarity CH HSS. A return to mostly quiet conditions is expected by day three (10 Jan) as CH HSS effects 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