Severe Geomagnetic Storm: March 23-24, 2023

Posted: March 26, 2023 by oldbrew in Astrophysics, Electro-magnetism

A few days earlier a ‘colossal solar tornado‘ (14x Earth size) was observed over the Sun’s surface.

March 24, 2023: Forecasters did not see this one coming. On March 23-24, auroras spread into the United States as far south as New Mexico (+32.8N) during a severe (category G4) geomagnetic storm–the most intense in nearly 6 years. The cause of the storm is still unclear; it may have been the ripple effect of a near-miss CME on March 23rd.

“Aurora pillars were visible from Shenandoah National Park in Central Virginia,” says Peter Forister, who photographed the light show at latitude +38.7 degrees:

“Beautiful red and green colors were visible to the naked eye around 11 pm local time,” he says. Other notable low-latitude sightings were made in Colorado (+38.7N), Missouri (+40.2N), Colorado again (+38.3N), Nebraska (+41N) and North Carolina (+36.2N). More than half of all US states were in range of the display.

Not every light in the sky was the aurora borealis, however. There was also

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  1. oldbrew says:

    Time-lapse video shows Earth size comparison (tiny)…

    Daily Mail:
    Incredible moment a colossal 74,500-mile-high ‘solar tornado’ swirls on the sun’s surface is captured by NASA

    The twister, composed of plasma and heat, measured more than 74,500 miles high and moved up to 310,000 miles per hour.

    Another DM quote:
    The sun has been experiencing bizarre behavior recently – in February, a piece of its northern pole broke off.

    A video shows a giant filament of plasma, or electrified gas, shooting out from the sun, separating and then circulating in a ‘massive polar vortex.’

    While astronomers are baffled, they speculate the prominence has something to do with the reversal of the sun’s magnetic field that happens once every solar cycle.

    The video was shared on Twitter by space weather forecaster Tamitha Skov, who said the clip was taken by NASA’s Solar Dynamics Observatory.

  2. P.A.Semi says:

    This one was strange, because there was no CME, no Proton Flux registered…
    Usually these strong geomagnetic storms are preceded with increased Solar proton flux, this was not…

    The CME visible in Lasco C3 on 2023-03-22 12:00 was unimpressive and going sideways and there was none other until 2023-03-25 00:00 going sideways too…
    Last quite minor CME on our side was on 2023-03-20 12:00

    Could that event 23-24 be of non-Solar origin ?


    And just a note, that last time supposed far-side extraordinary CME on 2023-03-13 was most probably an elaborate Hoax, NOAA did not have it in their “Enlil” simulation and almost nothing was visible in Lasco, it was only in computer simulation of Space Weather com…


  3. Take away——–We do not know the sun! The sun is the leading climate driver and we do not know it. All is a guess, and a guess based on incomplete knowledge is just a guess. If the fact that we do not know is understood as the basis, then true understanding can follow. However: vested interest tend to blind those who have them.

  4. JB says:

    ” open a crack in Earth’s magnetosphere” The magnetosphere is an egg?
    “a piece of its [the sun’s] northern pole broke off.” That egg has some form of rigid pole at its axis?

    The gosh-darndest phrases heaven gazers come up with!

  5. oldbrew says:

    X flares booming…

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