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Strong (G3) Geomagnetic Storms Observed - 09 May 2016
G3 (Strong) geomagnetic storms were observed beginning at 09/0259 UTC. The solar wind environment driving this elevated activity is weakening and the G3 Warning is set to expire at 09/0400 UTC. Warnings for G1-G2 (Minor-Moderate) geomagnetic storms remain in effect until 09/0600 UTC.