Space Weather Message Code: WARK04 Serial Number: 2939 Issue Time: 2016 Aug 09 2226 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2016 Aug 09 2230 UTC Valid To: 2016 Aug 10 0859 UTC Warning Condition: Onset 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 – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: WARK04 Serial Number: 2938 Issue Time: 2016 Aug 09 1530 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 2937 Valid From: 2016 Aug 09 0905 UTC Now Valid Until: 2016 Aug 09 1900 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: ALTK04 Serial Number: 1909 Issue Time: 2016 Aug 09 1404 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2016 Aug 09 1403 UTC Synoptic Period: 1200-1500 UTC Active Warning: Yes 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 – Weak power grid fluctuations can occur. Aurora – Aurora may be

Space Weather Message Code: WARK04 Serial Number: 2937 Issue Time: 2016 Aug 09 0904 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2016 Aug 09 0905 UTC Valid To: 2016 Aug 09 1600 UTC Warning Condition: Onset 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 – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: ALTK04 Serial Number: 1908 Issue Time: 2016 Aug 08 0306 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2016 Aug 08 0259 UTC Synoptic Period: 0000-0300 UTC Active Warning: Yes 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 – Weak power grid fluctuations can occur. Aurora – Aurora may be

Space Weather Message Code: WARK04 Serial Number: 2936 Issue Time: 2016 Aug 08 0131 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2016 Aug 08 0130 UTC Valid To: 2016 Aug 08 2359 UTC Warning Condition: Onset 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 – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: ALTK04 Serial Number: 1907 Issue Time: 2016 Aug 07 0121 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2016 Aug 07 0120 UTC Synoptic Period: 0000-0300 UTC Active Warning: Yes 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 – Weak power grid fluctuations can occur. Aurora – Aurora may be

Space Weather Message Code: WARK04 Serial Number: 2935 Issue Time: 2016 Aug 07 0006 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2016 Aug 07 0005 UTC Valid To: 2016 Aug 07 1300 UTC Warning Condition: Onset 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 – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: ALTK04 Serial Number: 1906 Issue Time: 2016 Aug 06 1013 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2016 Aug 06 1012 UTC Synoptic Period: 0900-1200 UTC Active Warning: Yes 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 – Weak power grid fluctuations can occur. Aurora – Aurora may be

Space Weather Message Code: WARK04 Serial Number: 2934 Issue Time: 2016 Aug 06 1000 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2016 Aug 06 1000 UTC Valid To: 2016 Aug 06 1600 UTC Warning Condition: Onset 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 – Weak power grid fluctuations can occur. Aurora