Space Weather Message Code: ALTK05 Serial Number: 1422 Issue Time: 2023 Jan 15 0257 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2023 Jan 15 0257 UTC Synoptic Period: 0000-0300 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: WARK04 Serial Number: 4242 Issue Time: 2023 Jan 15 0254 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4241 Valid From: 2023 Jan 13 1936 UTC Now Valid Until: 2023 Jan 15 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: 4241 Issue Time: 2023 Jan 14 2058 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4240 Valid From: 2023 Jan 13 1936 UTC Now Valid Until: 2023 Jan 15 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: WARK04 Serial Number: 4240 Issue Time: 2023 Jan 14 0527 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4239 Valid From: 2023 Jan 13 1936 UTC Now Valid Until: 2023 Jan 14 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 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: ALTK04 Serial Number: 2332 Issue Time: 2023 Jan 13 2226 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2023 Jan 13 2220 UTC Synoptic Period: 2100-2400 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: 4239 Issue Time: 2023 Jan 13 1936 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2023 Jan 13 1936 UTC Valid To: 2023 Jan 14 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: 4238 Issue Time: 2023 Jan 08 1317 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2023 Jan 08 1317 UTC Valid To: 2023 Jan 08 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: WARK04 Serial Number: 4237 Issue Time: 2023 Jan 05 1102 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2023 Jan 05 1100 UTC Valid To: 2023 Jan 05 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: 4236 Issue Time: 2023 Jan 04 2354 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4235 Valid From: 2023 Jan 04 0129 UTC Now Valid Until: 2023 Jan 05 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: WARK05 Serial Number: 1731 Issue Time: 2023 Jan 04 0902 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1730 Valid From: 2023 Jan 04 0250 UTC Now Valid Until: 2023 Jan 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 60 degrees Geomagnetic Latitude. Induced Currents –