Space Weather Message Code: WARK04 Serial Number: 4021 Issue Time: 2022 Feb 04 1711 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4020 Valid From: 2022 Feb 03 0330 UTC Now Valid Until: 2022 Feb 05 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: 1360 Issue Time: 2022 Feb 04 1610 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2022 Feb 04 1605 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: WARK05 Serial Number: 1637 Issue Time: 2022 Feb 04 1548 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2022 Feb 04 1548 UTC Valid To: 2022 Feb 04 2100 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: 4020 Issue Time: 2022 Feb 04 1050 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4019 Valid From: 2022 Feb 03 0330 UTC Now Valid Until: 2022 Feb 04 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: WARK04 Serial Number: 4019 Issue Time: 2022 Feb 04 0239 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4018 Valid From: 2022 Feb 03 0330 UTC Now Valid Until: 2022 Feb 04 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: WARK04 Serial Number: 4019 Issue Time: 2022 Feb 04 0239 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4018 Valid From: 2022 Feb 03 0330 UTC Now Valid Until: 2022 Feb 04 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: 1636 Issue Time: 2022 Feb 04 0232 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2022 Feb 04 0232 UTC Valid To: 2022 Feb 04 0600 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: 4018 Issue Time: 2022 Feb 03 1512 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4017 Valid From: 2022 Feb 03 0330 UTC Now Valid Until: 2022 Feb 04 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: WARK05 Serial Number: 1635 Issue Time: 2022 Feb 03 1428 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1634 Valid From: 2022 Feb 03 0555 UTC Now Valid Until: 2022 Feb 03 2100 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: 1359 Issue Time: 2022 Feb 03 0850 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2022 Feb 03 0846 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.