Coronal hole faces Earth

Tuesday, 10 October 2017 - 15:46 UTC

Coronal hole faces Earth

A northern hemisphere coronal hole is facing our planet today.

This is a well known coronal hole that's been around for multiple solar rotations but it did shrink in size compared to the previous rotation. Last rotation, it causes multiple periods with geomagnetic storm condittions at Earth. The NOAA SWPC predicts the solar wind stream to arrive tomorrow (11 October) and has a minor G1 geomagnetic storm watch in effect for both 11 and 12 October.

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Current data suggest that it is not possible to see aurora now at middle latitudes

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Today's space weather

Auroral activity Minor Severe
High latitude 30% 25%
Middle latitude 5% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
B1.4 B3.4
Moon phase
New Moon

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/09/09M1.1
Last geomagnetic storm:2017/10/15Kp5 (G1)
Number of spotless days in 2017:67
Current stretch spotless days:5

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