Space Weather Message Code: ALTK05 Serial Number: 1314 Issue Time: 2021 Mar 03 0900 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2021 Mar 03 0859 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.

Space Weather Message Code: WARK04 Serial Number: 3846 Issue Time: 2021 Mar 03 0503 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3845 Valid From: 2021 Mar 02 0830 UTC Now Valid Until: 2021 Mar 03 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: ALTK05 Serial Number: 1312 Issue Time: 2021 Mar 03 0303 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2021 Mar 03 0300 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: ALTK05 Serial Number: 1311 Issue Time: 2021 Mar 02 2046 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2021 Mar 02 2046 UTC Synoptic Period: 1800-2100 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: 3845 Issue Time: 2021 Mar 02 2039 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3844 Valid From: 2021 Mar 02 0830 UTC Now Valid Until: 2021 Mar 03 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: 1581 Issue Time: 2021 Mar 02 2035 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2021 Mar 02 2035 UTC Valid To: 2021 Mar 03 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: ALTK04 Serial Number: 2197 Issue Time: 2021 Mar 02 1801 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2021 Mar 02 1759 UTC Synoptic Period: 1500-1800 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: 3844 Issue Time: 2021 Mar 02 1453 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3843 Valid From: 2021 Mar 02 0830 UTC Now Valid Until: 2021 Mar 02 2100 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 –

Space Weather Message Code: WARK04 Serial Number: 3843 Issue Time: 2021 Mar 02 0827 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2021 Mar 02 0830 UTC Valid To: 2021 Mar 02 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: WARK04 Serial Number: 3842 Issue Time: 2021 Mar 01 1030 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 3841 Valid From: 2021 Mar 01 0300 UTC Now Valid Until: 2021 Mar 02 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 –