![]() Rationale: There is a chance for a greater than 10 MeV proton event Solar radiation, as observed by NOAA GOES-16 over the past 24 hours, was On 20 Feb due to the anticipated arrival of a CME that left the Sun onĢ0 Feb. Active conditions are again likely on 21 Feb as CME influenceī. NOAA Solar Radiation Activity Observation and Forecast To G1 (Minor) geomagnetic storm levels, with a chance of G2 (Moderate), ![]() Rationale: Quiet to active conditions on 19 Feb are likely to increase The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA Geomagnetic storms reaching the G1 level are likely.Ī. NOAA Geomagnetic Activity Observation and Forecast Space weather for the next 24 hours is predicted to be minor. Solar flux 167 and estimated planetary A-index 6. Solar-terrestrial indices for 18 February follow. Spacecraft - Minor impact on satellite operations possible.Īurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.ĭescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event. Induced Currents - Weak power grid fluctuations can occur. Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude. THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT ![]() WATCH: Geomagnetic Storm Category G1 Predictedįeb 19: None (Below G1) Feb 20: G1 (Minor) Feb 21: None (Below G1) ![]()
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