:Issued: 2023 Jul 15 1346 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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Two partial halo coronal mass ejections (CMEs) were observed in LASCO/C2 coronagraph
data in the early UTC afternoon on July 14th, a north-eastward and south-westward
one. Both are estimated to miss Earth with no expect impact. Another partial halo CME
was observed in LASCO/C2 coronagraph imagery at 19:10 UTC. The CME is associated to
an on disc filament eruption related to a C8.8-flare, peak time 18:44 UTC on July
14th, from plage region NOAA AR 3370. The CME is currently being analysed, but
overlapping with previous partial halo CME from the east limb and lack of STEREO data
for this interval makes analysis more difficult. Based on the source location and
SDO/AIA 304 images the eruption is likely to have an Earth-directed component and
impact on Earth. Expected arrival times and foreseen geomagnetic impact will be
presented later.
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