CME Scoreboard

Prediction for CME (2016-10-09T02:00:00-CME-001)

:Issued: 2016 Oct 10 1035 UTC
:Product: documentation at http://www.sidc.be/products/presto
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# FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium)         #
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A full halo CME is visible in SoHO/LASCO C2 images from 2:00 UT onwards on October 9. The ejection is mostly directed towards the North-East and has an angular extent of 360 degrees (although the South-West component is only very faint, causing Cactus to underestimate the angular extent). 
The event is also seen in STEREO A / COR2 data where it is directed to the North-West (as seen from STEREO A) with a rather restricted angular extent of around 110 degrees. The speed is measured to be at most 300 km/s.
The origin of the event is not entirely clear but must likely be related to the filament eruption around 16:00 UT October 8, in the North-Eastern quadrant.
The restricted angular extent in STEREO A data indicates that the Earth is likely to be located only at the edge of the CME passage. Hence, Earth may experience the passage of the flanks of the CME late on October 13 or early October 14. Given the low speed and the direction of the CME effects are estimated not to be very strong with possibly minor up to moderate geomagnetic storms.
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