Geomagnetic K-index of 5 alert is issued by Space Weather Prediction Center. Kp-indices of 5 or greater indicate storm-level geomagnetic activity. Geomagnetic storms have been associated with satellite surface charging and increased atmospheric drag.
Speed of solar winds is curently 465.1 km/sec with density of 4.8 protons/cm3. R2 radio blackout level is in effect ( Limited blackout of HF radio communication on sunlit side, loss of radio contact for tens of minutes and degradation of low-frequency navigation signals for tens of minutes).
Now: Kp= 5 storm
24-hr max: Kp= 5 storm
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