Space Weather Message Code: WATA20 Serial Number: 988 Issue Time: 2024 Feb 10 2224 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Feb 11: None (Below G1) Feb 12: G1 (Minor) Feb 13: 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. Induced

Space Weather Message Code: WATA20 Serial Number: 987 Issue Time: 2024 Feb 03 0009 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Feb 04: None (Below G1) Feb 05: G1 (Minor) Feb 06: None (Below G1) 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: WATA20 Serial Number: 986 Issue Time: 2024 Jan 27 1021 UTC CANCEL WATCH: Geomagnetic Storm Category G1 Predicted Cancel Serial Number: 985 Original Issue Time: 2024 Jan 24 1943 UTC Comment: Conditions no longer meet watch criteria. 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

Space Weather Message Code: WATA20 Serial Number: 985 Issue Time: 2024 Jan 24 1943 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jan 25: G1 (Minor) Jan 26: G1 (Minor) Jan 27: 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. Induced Currents

Space Weather Message Code: WARK04 Serial Number: 4543 Issue Time: 2024 Jan 24 0840 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4542 Valid From: 2024 Jan 24 0241 UTC Now Valid Until: 2024 Jan 24 1500 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: 2424 Issue Time: 2024 Jan 24 0245 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Jan 24 0244 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: 4542 Issue Time: 2024 Jan 24 0242 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2024 Jan 24 0241 UTC Valid To: 2024 Jan 24 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: WATA20 Serial Number: 984 Issue Time: 2024 Jan 23 1729 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jan 24: G1 (Minor) Jan 25: G1 (Minor) Jan 26: 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. Induced Currents

Space Weather Message Code: ALTK04 Serial Number: 2423 Issue Time: 2024 Jan 22 2324 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Jan 22 2314 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: WATA20 Serial Number: 983 Issue Time: 2024 Jan 22 1804 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jan 23: G2 (Moderate) Jan 24: None (Below G1) Jan 25: 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. Induced