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Trudi Kay
Attended McGill University
Lives in Québec Canada
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And SOLAR RADIATION STORM

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We have another view from SDO as the lens zooms in at AIA SDO lenses (211, 193, 171) At 2million 600,000Kelvin to show the filament ripping through the sun's atmosphere and leaving behind a "canyon of fire." The glowing "canyon" traces the channel where magnetic forces held the filament aloft before the explosion.

This event also hurled a magnificent CME into space:). The magnetized cloud, which left the sun traveling approximately 900 km/s (2 million mph), was not aimed toward Earth. Nevertheless, our planet's magnetosphere might receive a glancing blow on Oct. 2-3. Polar geomagnetic storms and auroras are possible when the CME arrives.

A couple of potential regions are currently located behind the east limb, including old region 1840 and should begin to rotate into view over the next 24 hours. There is no current data available for the solar ejecta.

Solar Radiation Storm is at S2
Moderate
 

Biological: passengers and crew in high-flying aircraft at high latitudes may be exposed to elevated radiation risk.*

Satellite operations: infrequent single-event upsets possible.

Other systems: small effects on HF propagation through the polar regions and navigation at polar cap locations possibly affected.
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Thank you Trudi
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Trudi Kay

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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.
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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 Geomagnetic Storm Watch 2013 08 10 11 HD )  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 :)
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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.
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    Math & Physics
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