Polar Magnetic Storm 2 CMEs to Impact Earth 2013 08 23 HD

 

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Two CMEs are heading for Earth. The plasma clouds were expelled from the sun on August 20-21 by a pair of erupting magnetic filaments. NOAA forecasters expect the CMEs to arrive on August 23-24, possibly sparking geomagnetic storms around the poles.

 

ANOTHER CME IS ON THE WAY: As Earth passes through the wake of one CME, which did little to stir geomagnetic activity on Aug. 20th, another CME is on the way. NOAA forecasters expect a coronal mass ejection hurled into space yesterday by an erupting magnetic filament to deliver a glancing blow to Earth's magnetic field on Aug. 23rd -- 24th. High-latitude sky watchers should be alert for auroras.

 

ANOTHER SUNDIVING COMET: Here we go again. Another comet is diving into the sun, the second one this week. Coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) are monitoring the death plunge:

The icy comet, which probably measures a few 10s of meters wide, is vaporizing furiously and is not expected to survive much longer.

 

Like the comet that came before it, this one is a member of the Kreutz family. Kreutz sungrazers are fragments from the breakup of a single giant comet many centuries ago. They get their name from 19th century German astronomer Heinrich Kreutz, who studied them in detail.

 

Because of their common parentage, sungrazers often come in clusters. After today's sungrazer evaporates, it wouldn't be surprising to find yet another in the offing. Stay tuned.

2013 08 12 class M1 5 Flare Streaming Towards Earth

Best viewed with window expanded. This weekend the 10th & 11th of August wasn't a moderate geomagnetic storm as we had expected (see previous post Geomagnetic Storm Watch 2013 08 10 11 HD http://www.youtube.com/watch?v=1zUj3SWQQsY ) maybe because the CME had missed earth altogether or it hasn't arrived yet. But we did get a moderate solar flare C8.4 at 21:58 UTC Sunday evening and a more intense flare class M1.5 around Sunspot 1817 in the southern hemisphere. These two solar flares are geoeffective. The M1.5 class created a wave of ionization in the upper atmosphere above Europe and might have hurled a coronal mass ejection toward Earth. More M class flares and CMEs can be expected from the growing sunspot 1817. Also more solar wind to inundate the earth's magnetosphere on August 16-17th is from a new gigantic coronal hole. Thank you for watching and hope to see you again soon :)

Geomagnetic Storm Watch 2013 08 10-11

Best viewed with window expanded. Filament Eruption and CME An eruptive filament generated a partial halo coronal mass ejection on Wednesday evening. The latest analysis by the Goddard Space Flight Center is calling for an impact to our geomagnetic field by early on August 11th. The latest NOAA Space Weather Prediction Center update is calling for an indirect impact by late on August 10th. This latest plasma cloud is in addition to an earlier CME that was also somewhat directed towards Earth. Minor geomagnetic storming will be possible this weekend should the plasma clouds sweep past Earth. Geomagnetic Storm Watch An elevated solar wind stream flowing from a narrow Coronal Hole (CH) is currently streaming past Earth. This in itself is not expected to stir up much in the way of geomagnetic activity, but should the first of two possible CMEs deliver an expected glancing blow within the next 24 hours, minor G1 geomagnetic storming at high latitudes could unfold due to the combined effects. A second CME could deliver another glancing blow by August 11th. Both were the result of filament eruptions. WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Aug 09: None (Below G1) Aug 10: G1 (Minor) Aug 11: G1 (Minor) Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents - Weak power grid fluctuations can occur. Spacecraft - Minor impact on satellite operations possible. Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

Special Edition Impending Geomagnetic Storm HD

  
Something different and out of my comfort niche. Probably not to be repeated since I prefer just to do the science but it can be said I had given it a shot eh. Besides I have a mic that makes me sound like I have a lisp. I have no lisp or should I say lithp lol.
Once in a while would be ok but probably not all the time.

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Magnetic fields in the sun's northern hemisphere have opened up, forming a coronal hole now having turned towards earth.
Coronal holes are places in the sun's atmosphere where the magnetic field bends back and allows the solar wind to escape. A stream of solar wind flowing from this particular coronal hole will reach Earth on August 3-4. Its impact could spark a minor geomagnetic storm, so high-latitude sky watchers should be alert for auroras.


A faint Coronal Mass Ejection was observed yesterday following a filament eruption in the southwest quadrant. According to the latest WSA-Enlil Solar Wind Prediction model, a glancing blow impact will be possible by August 5th. Another model released by the Goddard Space Flight Center shows the plasma cloud missing to the west. Updates will be provided when necessary.