7/19/2023

Greater geomagnetric storm later this week:

 From spaceweather.com

A CME IS COMING: NOAA models confirm that a CME will graze Earth's magnetic field on July 20th. It came from yesterday's potent M6-class eruption in the magnetic canopy of sunspot AR3363. G1 to G2-class geomagnetic storms are likely with a slight chance of escalating to G3.

MAKE THAT *TWO* CMES: A second CME appears to be heading for Earth following a complex eruption near sunspot AR3376 on July 18th. Coronagraphs onboard SOHO recorded a ragged halo-shaped cloud emerging faster than 1000 km/s:

https://spaceweather.com/images2023/19jul23/newhalo.gif

NOAA has included this CME in their latest forecast model. It should hit Earth's magnetic field on July 22nd. The one-two punch of CMEs arriving on July 21st and 22nd boost the chances of a G2 or greater geomagnetric storm later this week.

 

 

 

 

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