:Issued: 2023 Nov 26 0928 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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Geomagnetic conditions reach moderate storm levels (NOAA Kp and local K BEL 6) at
25th November 21:00UT, due to the influence of the high speed stream emanating from
the mid latitudinal positive polarity coronal hole that crossed central meridian on
23rd November that were in turn preceded by the arrival of the ICME from 22nd
November 06:48UT. The ICME arrival created minor storm geomagnetic conditions
globally (Kp 5) and active conditions locally (K_Bel 4). The influence of the high
speed stream is currently waning. However, it is not clear whether the second ICME
(from the CME occurring at 22nd November 21:12UT) that was early 26th November has
arrived as well.
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# Solar Influences Data analysis Center - RWC Belgium                #
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