PRESTO ALERT

:Issued: 2024 May 10 1533 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 partial halo coronal mass ejection (CME) was observed on SOHO/LASCO-C2
images around 07:12 UTC on May 10. This CME is associated with a X4.0
flare, which peaked at 06:54 UTC, produced by NOAA AR 3664. Associated type
II and type IV radio emissions were detected at 06:46 UTC and 06:51 UTC,
respectively. This CME has a projected speed of about 694 km/s (as measured
by the Cactus tool). The corresponding ICME is expected to impact the Earth
on May 12.
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