[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2018 Jan 18 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 18 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2696 (S12W08, Bxo/beta) continued to decay over the period, but managed to produce several B-class flares. The largest was a B9/Sf at 18/0735 UTC. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to remain at very low levels throughout the forecast period (18-20 Jan).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux reached moderate levels and the greater than 10 MeV proton flux was steady at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to moderate levels on days one and two (18-19 Jan), and normal levels on day three (20 Jan). The greater than 10 MeV proton flux is expected to persist at background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters were at nominal levels today. Solar wind speed ranged from approximately 300-350 km/s. Total field ranged from 3-5 nT while the Bz component was between +4/-2 nT. Phi angle was oriented in a positive (away) solar sector.

Forecast: Solar wind parameters are expected to be near nominal levels for the next two days (18-19 Jan). An enhancement from a CIR and subsequent CH HSS is expected on day three (20 Jan). Solar wind speeds are expected to be near 550-575 km/s, as observed in STEREO A PLASTIC data.

Geospace

24 hr Summary: The geomagnetic field was quiet.

Forecast: The geomagnetic field is expected to be mostly quiet for the next two days (18-19 Jan), with isolated periods of unsettled conditions on day two. Day three (20 Jan) is expected to be at mostly unsettled levels with isolated periods of active conditions due to influences from a CIR ahead of a negative polarity CH HSS.

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

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