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
From: nw7us@sunspotwatch.com
Reply-to: Practical radio-wave propagation and space weather <propagation@contesting.com>
Date: Fri, 27 Nov 2015 20:07:05 +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 2015 Nov 27 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was at very low levels. Region 2458 (N07E14, Cao/beta) was the largest region on the disk. It exhibited decay in its trailer spot over the past 24 hours. Of the three remaining spotted regions, all were relatively stable or in gradual decay. No Earth-directed coronal mass ejections were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be at very low levels with a chance for C-class flares for the next three days (27-29 Nov).

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux remained at normal to moderate levels while the greater than 10 MeV proton flux remained at background levels throughout the period.

Forecast: The greater than 2 MeV electron flux is expected to remain at normal to moderate levels over the next three days (27-29 Nov). 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, as measured by the ACE spacecraft, reflected a minor enhancement. Total magnetic field strength increased from around 4 nT at the beginning of the period to a peak of 9 nT around 27/0130 UTC. The Bz component was predominantly southward until after 27/0420 when a rotation northward was observed. Wind speeds were relatively low around 260 km/s until after 27/0400 UTC, when a steady increase was observed to around 320 km/s. Phi angle was positive (away) for most of the period and rotated into the negative (towards) sector after 27/0400 UTC. Forecast: Solar wind parameters are expected to reflect near background levels on days one through three (27-29 Nov).

Geospace

24 hr Summary: The geomagnetic field was mostly quiet with an isolated period of unsettled in response to a minor enhancement in solar wind parameters early in the period.

Forecast: The geomagnetic field is expected to be at quiet levels with isolated periods of unsettled conditions on days one and two (27-28 Nov) due to minor enhancements in the solar wind. Quiet conditions are expected to return on day three (29 Nov).

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 - 2015 Nov 27 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>