Propagation
[Top] [All Lists]

[Propagation+Space Weather] Today's Space Weather Forecast Discussion on

To: propagation@contesting.com
Subject: [Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2016 Sep 15 1230 UTC
From: nw7us@sunspotwatch.com
Reply-to: Practical radio-wave propagation and space weather <propagation@contesting.com>
Date: Thu, 15 Sep 2016 20:07:09 +0000
List-post: <propagation@contesting.com">mailto:propagation@contesting.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 Sep 15 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained at very low levels. Regions 2589 (N12W77, Hsx/alpha) and 2591 (N04W45, Axx/alpha) both exhibited decay and remained inactive. Region 2592 (N16E65, Bxo/beta) was numbered during the period as it rotated into view from around the east limb, but was inactive.

Other activity included a CME off the east limb, first visible at 14/2336 UTC in LASCO C2 imagery. However, the CME appears to be associated with far side activity noted in STEREO Ahead EUVI imagery near the same time. There were no Earth-directed CMEs observed in available satellite imagery.

Forecast: Solar activity is expected to be very low with a slight chance for C-class flares throughout the forecast period (15-17 Sep).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux was at normal to high levels with a maximum flux of 2,066 pfu observed at 14/1400 UTC. The greater than 10 MeV proton flux continued at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at normal to high levels for the forecast period (15-17 Sep). 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 were at nominal levels. Solar wind speed began the period near 350 km/s, then began a gradual decrease to end the period near 325 km/s. Total field values were between 5 nT and 9 nT. The Bz component was southward for most of the summary period, averaging near -5 nT. Phi angle was in a positive orientation.

Forecast: Solar wind parameters are expected be slightly enhanced on days one and two (15-16 Sep) as a negative polarity southern extension CH HSS moves into a potentially geoeffective position. Conditions are likely to remain enhanced as another CH HSS moves into position by day three (17 Sep).

Geospace

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

Forecast: The geomagnetic field is expected to be quiet to unsettled throughout the forecast period (15-17 Sep) due to a series of negative polarity coronal hole high speed streams.

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



Today's Space Weather Forecast Discussion - 2016 Sep 15 20:07 UTC

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
<Prev in Thread] Current Thread [Next in Thread>
  • [Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2016 Sep 15 1230 UTC, nw7us <=