I didn't even think to check yesterday, although I wasn't here much, but we reached Kp4 during those solar winds ....

Space Weather Message Code: ALTK04
Serial Number: 1622
Issue Time: 2012 Dec 17 1312 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Dec 17 1307 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.