:Issued: 2025 Sep 06 1957 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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The solar wind parameters showed the arrival of an ICME associated with a faint halo
CME observed in SOHO/LASCO-C2 images on September 04. On September 06 at 13:50 UTC
the solar wind speed jumped from 501 km/s to 620 km/s and the total interplanetary
magnetic field jumped from 10 nT to 22 nT. This has resulted in minor geomagnetic
storm conditions globally and locally (Kp 5 and K BEL 5). Minor to moderate
geomagnetic storm conditions are expected over the next hours in response to the
disturbed solar wind conditions.
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# Solar Influences Data analysis Center - RWC Belgium                #
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