Space Weather Message Code: ALTK05 Serial Number: 993 Issue Time: 2016 Sep 01 2049 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 01 2049 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur.

Space Weather Message Code: ALTK06 Serial Number: 408 Issue Time: 2016 Sep 01 2358 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2016 Sep 01 2358 UTC Synoptic Period: 2100-2400 UTC Active Warning: Yes NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude

Space Weather Message Code: ALTK05 Serial Number: 993 Issue Time: 2016 Sep 01 2049 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 01 2049 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur.

Space Weather Message Code: ALTK06 Serial Number: 408 Issue Time: 2016 Sep 01 2358 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2016 Sep 01 2358 UTC Synoptic Period: 2100-2400 UTC Active Warning: Yes NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid fluctuations can occur. High-latitude

Space Weather Message Code: WARK06 Serial Number: 346 Issue Time: 2016 Sep 01 2334 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2016 Sep 01 2334 UTC Valid To: 2016 Sep 02 0300 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid

Space Weather Message Code: ALTK05 Serial Number: 993 Issue Time: 2016 Sep 01 2049 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 01 2049 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur.

Space Weather Message Code: WARK06 Serial Number: 346 Issue Time: 2016 Sep 01 2334 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2016 Sep 01 2334 UTC Valid To: 2016 Sep 02 0300 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid

Space Weather Message Code: ALTK05 Serial Number: 993 Issue Time: 2016 Sep 01 2049 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 01 2049 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur.

Space Weather Message Code: WARK06 Serial Number: 346 Issue Time: 2016 Sep 01 2334 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2016 Sep 01 2334 UTC Valid To: 2016 Sep 02 0300 UTC Warning Condition: Onset NOAA Scale: G2 – Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents – Power grid

Space Weather Message Code: ALTK05 Serial Number: 993 Issue Time: 2016 Sep 01 2049 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 01 2049 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G1 – Minor NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. Induced Currents – Weak power grid fluctuations can occur.