Space Weather Message Code: WARK04 Serial Number: 4728 Issue Time: 2024 Oct 15 2354 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4727 Valid From: 2024 Oct 15 0800 UTC Now Valid Until: 2024 Oct 16 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: WARK04 Serial Number: 4727 Issue Time: 2024 Oct 15 1419 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4726 Valid From: 2024 Oct 15 0800 UTC Now Valid Until: 2024 Oct 15 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 65 degrees Geomagnetic Latitude. Induced Currents –

Space Weather Message Code: ALTK04 Serial Number: 2490 Issue Time: 2024 Oct 15 0838 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Oct 15 0820 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: 4726 Issue Time: 2024 Oct 15 0759 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2024 Oct 15 0800 UTC Valid To: 2024 Oct 15 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: ALTK04 Serial Number: 2489 Issue Time: 2024 Oct 14 2246 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Oct 14 2246 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: 4725 Issue Time: 2024 Oct 14 2237 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2024 Oct 14 2237 UTC Valid To: 2024 Oct 15 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: WATA20 Serial Number: 1016 Issue Time: 2024 Oct 13 2042 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Oct 14: None (Below G1) Oct 15: None (Below G1) Oct 16: 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: 4724 Issue Time: 2024 Oct 12 2045 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4723 Valid From: 2024 Oct 10 1350 UTC Now Valid Until: 2024 Oct 13 0300 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: 1673 Issue Time: 2024 Oct 12 1051 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2024 Oct 12 1051 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: 1947 Issue Time: 2024 Oct 12 1036 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 1946 Valid From: 2024 Oct 10 1506 UTC Now Valid Until: 2024 Oct 12 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 –