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Coronal hole faces Earth

The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity. 

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G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 19:52 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Vorkuta
The solar wind speed is currently moderately high (518.3 km/sec.)
The strength of the interplanetary magnetic field is moderate (19.14nT), the direction is North (13.18nT).
The maximum X-ray flux of the past two hours is:
M1.31

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Latest alerts

20:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 19:44 UTC

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19:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 18:59 UTC

alert


18:33 UTC - Solar flare

Moderate M1.31 flare from sunspot region 4055

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CME arrival, G3 storm watch

A coronal mass ejection has arrived at our planet. This is the first of possibly two coronal mass ejections that were expected to arrive from filament eruptions on April 12 and 13. The minor G1 geomagnetic storm threshold has already been reached and the NOAA SWPC has a strong G3 geomagnetic storm watch in place for tomorrow, 16 April. Keep an eye on the data here on this website in the hours ahead. There is more action to come!

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18:12 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.15)


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