NOAA forecasters say that minor G1-class geomagnetic storms are possible on Feb. 20th when a CME launched by Friday's X2-class solar flare reaches Earth.
NOAA's model of the CME predicts no more than a glancing blow.
NASA's model, on the other hand, predicts a more direct hit.
If so, the impact could produce a stronger (G2 or G3) storm.
from https://spaceweather.com/
Many sunspots appeared over this reporting week (February 9-15) with
three new sunspot groups on February 9, one more on February 10, two
more on February 11, another on February 12 and three more on
February 13. Finally, there was one more yesterday, Thursday,
February 16.
Average daily sunspot numbers increased from 95.1 to 182.4, and
average daily solar flux from 155.9 to 196.4.
Geomagnetic activity also rose, with average daily planetary A index
going from 11.7 to 13.7, and middle latitude numbers from 7.6 to
10.7.
Full report at:
https://www.arrl.org/news/the-k7ra-solar-update-765
NOAA's model of the CME predicts no more than a glancing blow.
NASA's model, on the other hand, predicts a more direct hit.
If so, the impact could produce a stronger (G2 or G3) storm.
from https://spaceweather.com/
Many sunspots appeared over this reporting week (February 9-15) with
three new sunspot groups on February 9, one more on February 10, two
more on February 11, another on February 12 and three more on
February 13. Finally, there was one more yesterday, Thursday,
February 16.
Average daily sunspot numbers increased from 95.1 to 182.4, and
average daily solar flux from 155.9 to 196.4.
Geomagnetic activity also rose, with average daily planetary A index
going from 11.7 to 13.7, and middle latitude numbers from 7.6 to
10.7.
Full report at:
https://www.arrl.org/news/the-k7ra-solar-update-765
