Space Weather Message Code: WARK04 Serial Number: 3751 Issue Time: 2020 Aug 31 0203 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Aug 31 0202 UTC Valid To: 2020 Aug 31 0900 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: 3750 Issue Time: 2020 Aug 29 2000 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Aug 29 2000 UTC Valid To: 2020 Aug 30 0900 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: 2163 Issue Time: 2020 Aug 29 0902 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2020 Aug 29 0859 UTC Synoptic Period: 0600-0900 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: 3749 Issue Time: 2020 Aug 29 0725 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Aug 29 0725 UTC Valid To: 2020 Aug 29 1500 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: 3748 Issue Time: 2020 Aug 28 2343 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3747 Valid From: 2020 Aug 28 1632 UTC Now Valid Until: 2020 Aug 29 0600 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 –

Space Weather Message Code: ALTK05 Serial Number: 1295 Issue Time: 2020 Aug 28 1800 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2020 Aug 28 1759 UTC Synoptic Period: 1500-1800 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: ALTK04 Serial Number: 2162 Issue Time: 2020 Aug 28 1646 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2020 Aug 28 1643 UTC Synoptic Period: 1500-1800 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: 3747 Issue Time: 2020 Aug 28 1632 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Aug 28 1632 UTC Valid To: 2020 Aug 28 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: 3746 Issue Time: 2020 Aug 27 1313 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Aug 27 1313 UTC Valid To: 2020 Aug 27 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: 3745 Issue Time: 2020 Aug 26 1050 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2020 Aug 26 1049 UTC Valid To: 2020 Aug 26 1500 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