PRESTO ALERT

:Issued: 2024 May 10 1829 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 shock was detected in the solar wind data around 16:42 UTC on May 10. The
interplanetary magnetic field jumped from 4 nT to 44 nT, the solar wind
speed jumped from 460 km/s to 700 km/s and the solar wind density at the
shock increased from 5/cm3 to 30/cm3. The shock is related to an ICME
arrival associated with one of the coronal mass ejections that was detected
on May 08-09. Geomagnetic conditions have reached severe storm levels
globally (NOAA Kp 8-) and major storm levels locally (K_Bel 7) starting at
15:00 UT on May 10.
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# Solar Influences Data analysis Center - RWC Belgium                #
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