Space Weather Message Code: WARK05 Serial Number: 1896 Issue Time: 2024 Jul 26 1559 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2024 Jul 26 1559 UTC Valid To: 2024 Jul 26 2100 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: 2459 Issue Time: 2024 Jul 26 1455 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Jul 26 1450 UTC Synoptic Period: 1200-1500 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: 4648 Issue Time: 2024 Jul 26 1434 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2024 Jul 26 1434 UTC Valid To: 2024 Jul 26 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 – Weak power grid fluctuations can occur. Aurora

Space Weather Message Code: ALTK05 Serial Number: 1607 Issue Time: 2024 Jul 26 0544 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2024 Jul 26 0541 UTC Synoptic Period: 0300-0600 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: ALTK04 Serial Number: 2458 Issue Time: 2024 Jul 26 0409 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Jul 26 0400 UTC Synoptic Period: 0300-0600 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: WARK05 Serial Number: 1895 Issue Time: 2024 Jul 26 0402 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2024 Jul 26 0402 UTC Valid To: 2024 Jul 26 1200 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: WARK04 Serial Number: 4647 Issue Time: 2024 Jul 26 0230 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 4646 Valid From: 2024 Jul 25 2015 UTC Now Valid Until: 2024 Jul 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: ALTK04 Serial Number: 2457 Issue Time: 2024 Jul 26 0121 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2024 Jul 26 0120 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: 4646 Issue Time: 2024 Jul 25 2015 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2024 Jul 25 2015 UTC Valid To: 2024 Jul 26 0300 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: WARSUD Serial Number: 231 Issue Time: 2024 Jul 25 1351 UTC WARNING: Geomagnetic Sudden Impulse expected Valid From: 2024 Jul 25 1348 UTC Valid To: 2024 Jul 25 1425 UTC IP Shock Passage Observed: 2024 Jul 25 1315 UTC NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation