Space Weather Message Code: WARK05 Serial Number: 1219 Issue Time: 2016 Sep 02 1438 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2016 Sep 02 1438 UTC Valid To: 2016 Sep 02 1900 UTC Warning Condition: Onset 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

Space Weather Message Code: WARK04 Serial Number: 2962 Issue Time: 2016 Sep 02 1150 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 2961 Valid From: 2016 Sep 01 1937 UTC Now Valid Until: 2016 Sep 02 2359 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: ALTK06 Serial Number: 410 Issue Time: 2016 Sep 02 0525 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2016 Sep 02 0525 UTC Synoptic Period: 0300-0600 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: 996 Issue Time: 2016 Sep 02 0455 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 02 0455 UTC Synoptic Period: 0300-0600 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: WARK05 Serial Number: 1218 Issue Time: 2016 Sep 02 0249 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1217 Valid From: 2016 Sep 01 1947 UTC Now Valid Until: 2016 Sep 02 1200 UTC Warning Condition: Persistence 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 –

Space Weather Message Code: ALTK05 Serial Number: 995 Issue Time: 2016 Sep 02 0209 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 02 0209 UTC Synoptic Period: 0000-0300 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: 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.