Live Kp index, solar flares, and viewing forecast — recorded continuously from NOAA SWPC
Space Weather Message Code: WARK04 Serial Number: 5370 Issue Time: 2026 Jun 25 2343 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5369 Valid From: 2026 Jun 25 1939 UTC Now Valid Until: 2026 Jun 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 - Weak power grid fluctuations can occur. Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: ALTK04 Serial Number: 2668 Issue Time: 2026 Jun 25 1941 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2026 Jun 25 1940 UTC Synoptic Period: 1800-2100 Active Warning: YES Comment: 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 visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: WARK04 Serial Number: 5369 Issue Time: 2026 Jun 25 1939 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2026 Jun 25 1939 UTC Valid To: 2026 Jun 25 2359 UTC Warning Conditions: Onset Comment: 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 visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: WARK05 Serial Number: 2243 Issue Time: 2026 Jun 25 0847 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2242 Valid From: 2026 Jun 25 0337 UTC Now Valid Until: 2026 Jun 25 1500 UTC Warning Condition: Persistence 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. Spacecraft - Minor impact on satellite operations possible. Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Space Weather Message Code: WARK04 Serial Number: 5368 Issue Time: 2026 Jun 25 0846 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5367 Valid From: 2026 Jun 24 1740 UTC Now Valid Until: 2026 Jun 25 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 - Weak power grid fluctuations can occur. Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
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