he ACE Spacecraft is detecting a sudden increase in solar wind speed to near 600 km/s. This is the expected interplanetary shock passing the spacecraft. An impact to Earth’s geomagnetic field should be observed within the next hour.
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 May 24 1750 UTC
Valid To: 2013 May 24 1850 UTC
IP Shock Passage Observed: 2013 May 24 1735 UTC
