PRESTO ALERT

Fast warning for important solar events with implications for the space environment.
Source SIDC (RWC-Belgium)
Frequency ASAP, when needed
Format Plain text
Mail header PRESTO ALERT
SIDC code presto

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Latest issue

:Issued: 2019 Mar 24 2127 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 in the solar wind is visible in DSCOVR data at 20:43 UT, most
likely marking the arrival of the March 20 CME (not enough data yet
available to confirm). Disturbed geomagnetic conditions can be expected in
the coming hours, even though the solar wind speed and interplanetary
magnetic field are at low levels even after the shock (300 km/s and 5 nT
respectively).
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