Space Weather Message Code: WARK05 Serial Number: 1215 Issue Time: 2016 Sep 01 1429 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1214 Valid From: 2016 Sep 01 0405 UTC Now Valid Until: 2016 Sep 01 1800 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: 992 Issue Time: 2016 Sep 01 0900 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2016 Sep 01 0859 UTC Synoptic Period: 0600-0900 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: 1214 Issue Time: 2016 Sep 01 0856 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1213 Valid From: 2016 Sep 01 0405 UTC Now Valid Until: 2016 Sep 01 1500 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: WARK05 Serial Number: 1213 Issue Time: 2016 Sep 01 0407 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2016 Sep 01 0405 UTC Valid To: 2016 Sep 01 0900 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: 2957 Issue Time: 2016 Sep 01 0154 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 2956 Valid From: 2016 Aug 31 2035 UTC Now Valid Until: 2016 Sep 01 0900 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: 1916 Issue Time: 2016 Sep 01 0152 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2016 Sep 01 0152 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: 2956 Issue Time: 2016 Aug 31 2031 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2016 Aug 31 2035 UTC Valid To: 2016 Sep 01 0300 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: 2955 Issue Time: 2016 Aug 31 0043 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 2954 Valid From: 2016 Aug 30 0915 UTC Now Valid Until: 2016 Aug 31 1300 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: WATA20 Serial Number: 739 Issue Time: 2016 Aug 30 1906 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Aug 31: G1 (Minor) Sep 01: None (Below G1) Sep 02: None (Below G1) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT 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.

Space Weather Message Code: WARK04 Serial Number: 2954 Issue Time: 2016 Aug 30 1854 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 2953 Valid From: 2016 Aug 30 0915 UTC Now Valid Until: 2016 Aug 31 0100 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 –