Space Weather Discussion Forum
Welcome, Guest. Please login or register.
16 May 2012, 23:03:17 GMT

Login with username, password and session length
Search:     Advanced search
Solar and auroral activity are increasingly active during the rise towards the next solar max. If you don't want to miss the stormy episodes, check back regularly for the latest updates.
7884 Posts in 1260 Topics by 290 Members
Latest Member: BillWX
* Home Help Search Login Register
+  Space Weather Discussion Forum
|-+  Warnings / Alerts / "Heads Up" Notices
| |-+  Warnings, Alerts, Updated Notes of Activity (Moderators: Cary, Ulrich Rieth)
| | |-+  Fast full halo CME from AR 11226 on 2011/06/07		 0 Members and 2 Guests are viewing this topic. « previous next »
Pages: [1] Go Down Print
Author Topic: Fast full halo CME from AR 11226 on 2011/06/07  (Read 640 times)
Ulrich Rieth
Administrator
Auroral Observer
*****
Offline Offline

Posts: 381



WWW
« on: 07 June 2011, 14:50:12 GMT »
This morning an M2.5 proton flare occured in active region 11226 in the south-western part of the sun.
A fast full halo CME was observed in SOHO and STEREO coronograph images after the flare.
Most of the material is directed south and ahead of earth, but a substantial portion of the solar plasma could still reach earth in the days ahead.
The impact of the plasma cloud could happen as early as tomorrow evening, but more likely on thursday, June 9th.
If the CME is as fast as expected, middle latitude auroral activity can be expected.
Further updates as well as official watches or warnings will follow.
Stay tuned...
Clear skies!

 Ulrich
Logged
Hamburg, Germany
Geographic Location: 53° 33' 09'' N, 10° 03' 11'' E, 7m
Corrected Geomagnetic Latitude: 49.75°N (Central Middle Latitude)
http://www.ulrich-rieth.de
Ulrich Rieth
Administrator
Auroral Observer
*****
Offline Offline

Posts: 381



WWW
« Reply #1 on: 09 June 2011, 20:22:15 GMT »
Hi all!

It seems, the CME arrived already at noon (UTC) today, but without much effects.
Maybe the solar wind data will improve slightly in the coming hours, but I would not expect much activity from this one any more.
Clear skies!

 Ulrich

PS.: Maybe there will be some NLCs out there instead of the aurora.
Logged
Hamburg, Germany
Geographic Location: 53° 33' 09'' N, 10° 03' 11'' E, 7m
Corrected Geomagnetic Latitude: 49.75°N (Central Middle Latitude)
http://www.ulrich-rieth.de
Pages: [1] Go Up Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!