Space Weather Message Code: ALTK04 Serial Number: 2272 Issue Time: 2022 Feb 20 0130 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2022 Feb 20 0129 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: 4034 Issue Time: 2022 Feb 20 0117 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2022 Feb 20 0115 UTC Valid To: 2022 Feb 20 1800 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: WATA20 Serial Number: 909 Issue Time: 2022 Feb 17 2346 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Feb 18: None (Below G1) Feb 19: None (Below G1) Feb 20: G1 (Minor) 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: 4033 Issue Time: 2022 Feb 13 1739 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2022 Feb 13 1740 UTC Valid To: 2022 Feb 14 0000 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: 4032 Issue Time: 2022 Feb 13 0556 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4031 Valid From: 2022 Feb 12 2016 UTC Now Valid Until: 2022 Feb 13 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: 2271 Issue Time: 2022 Feb 13 0227 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2022 Feb 13 0224 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: 4031 Issue Time: 2022 Feb 12 2016 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2022 Feb 12 2016 UTC Valid To: 2022 Feb 13 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 – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: WARK04 Serial Number: 4030 Issue Time: 2022 Feb 12 0555 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4029 Valid From: 2022 Feb 10 1400 UTC Now Valid Until: 2022 Feb 12 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: ALTK05 Serial Number: 1363 Issue Time: 2022 Feb 11 2105 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2022 Feb 11 2059 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: WARK05 Serial Number: 1641 Issue Time: 2022 Feb 11 2028 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2022 Feb 11 2028 UTC Valid To: 2022 Feb 12 0300 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