Solar alert

Issued on 2023 May 12 1216 UTC

A small shock was observed in the solar wind at 05:48 UTC May 12. At this time the speed increased from 496 to 552 km/s and the magnetic field increased from 6 to 10 nT. This was likely related to the CME from May 09 that was predicted to be Earth directed. Bz, however, was mostly positive, with a minimum value of -5 nT. This event produced active geomagnetic conditions (NOAA Kp = 4 and local K Bel =4 ). Further periods of Active geomagnetic conditions remain likely.

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