Space Weather Message Code: WARK04 Serial Number: 3814 Issue Time: 2021 Feb 02 0855 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3813 Valid From: 2021 Feb 02 0132 UTC Now Valid Until: 2021 Feb 02 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: ALTK04 Serial Number: 2188 Issue Time: 2021 Feb 02 0141 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2021 Feb 02 0133 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: 3813 Issue Time: 2021 Feb 02 0133 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2021 Feb 02 0132 UTC Valid To: 2021 Feb 02 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: 881 Issue Time: 2021 Feb 01 1939 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Feb 02: G1 (Minor) Feb 03: None (Below G1) Feb 04: 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: 880 Issue Time: 2021 Jan 29 2028 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Jan 30: None (Below G1) Jan 31: None (Below G1) Feb 01: 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: 3812 Issue Time: 2021 Jan 28 0253 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2021 Jan 28 0252 UTC Valid To: 2021 Jan 28 0559 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: 3811 Issue Time: 2021 Jan 27 2233 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2021 Jan 27 2232 UTC Valid To: 2021 Jan 27 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: 3810 Issue Time: 2021 Jan 27 0449 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2021 Jan 27 0448 UTC Valid To: 2021 Jan 27 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: WARK04 Serial Number: 3809 Issue Time: 2021 Jan 26 0555 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3808 Valid From: 2021 Jan 25 2130 UTC Now Valid Until: 2021 Jan 26 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: 1571 Issue Time: 2021 Jan 26 0412 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2021 Jan 26 0411 UTC Valid To: 2021 Jan 26 0900 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