Space Weather Message Code: WARK04 Serial Number: 3755 Issue Time: 2020 Sep 01 1758 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Sep 01 1757 UTC Valid To: 2020 Sep 01 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: WARK04 Serial Number: 3754 Issue Time: 2020 Sep 01 0356 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3753 Valid From: 2020 Aug 31 0202 UTC Now Valid Until: 2020 Sep 01 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 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: WARK05 Serial Number: 1555 Issue Time: 2020 Aug 31 1753 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1554 Valid From: 2020 Aug 31 1115 UTC Now Valid Until: 2020 Aug 31 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 60 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: WARK04 Serial Number: 3753 Issue Time: 2020 Aug 31 1743 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3752 Valid From: 2020 Aug 31 0202 UTC Now Valid Until: 2020 Sep 01 0600 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: ALTK05 Serial Number: 1297 Issue Time: 2020 Aug 31 1120 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2020 Aug 31 1120 UTC Synoptic Period: 0900-1200 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: 1554 Issue Time: 2020 Aug 31 1115 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2020 Aug 31 1115 UTC Valid To: 2020 Aug 31 1800 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: 3752 Issue Time: 2020 Aug 31 0856 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3751 Valid From: 2020 Aug 31 0202 UTC Now Valid Until: 2020 Aug 31 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 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: ALTK05 Serial Number: 1296 Issue Time: 2020 Aug 31 0428 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2020 Aug 31 0427 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: 1553 Issue Time: 2020 Aug 31 0357 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2020 Aug 31 0357 UTC Valid To: 2020 Aug 31 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: ALTK04 Serial Number: 2164 Issue Time: 2020 Aug 31 0302 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2020 Aug 31 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