{"id":782191,"date":"2024-05-11T00:42:53","date_gmt":"2024-05-11T05:42:53","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=782191"},"modified":"2024-05-11T00:42:53","modified_gmt":"2024-05-11T05:42:53","slug":"g5-extreme-geomagnetic-storm-following-strong-cme-impact","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=782191","title":{"rendered":"G5 – Extreme geomagnetic storm following strong CME impact"},"content":{"rendered":"


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The first set of several incoming coronal mass ejections (CMEs) impacted Earth at around 16:56 UTC on May 10, 2024, rapidly increasing geomagnetic field levels from unsettled to G4 \u2013 Severe by 17:44 and to G5 \u2013 Extreme by 23:34 UTC \u2014 something we haven\u2019t seen since 2003<\/strong>.<\/p>\n

A strong CME was registered in solar wind data beginning at around 16:35 UTC and reached Earth at 16:56 UTC, with a 108 nT deviation measured at the Boulder magnetometer. Following initial shock arrival, total field strength increased to a peak of 55 nT while Bz was sustained southward, by as much as -47 nT, after 16:45 UTC. <\/p>\n

Solar wind speeds increased sharply to around 700 km\/s following shock arrival, with a peak value of 741 km\/s observed at 17:35 UTC. Conditions further enhanced later, with Bt reaching 74 nT, Bz deviating southward to near -50 nT, and solar winds peaking over 800 km\/s.<\/p>\n

The geomagnetic field rapidly increased from unsettled levels to G4, and eventually G5 \u2013 Severe geomagnetic storm levels following the CME arrival.<\/p>\n

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Aurora sightings were widespread in both hemispheres, reaching as far south as Florida, U.S., and the Mediterranean Sea in Europe.<\/p>\n

One of the first amazing images came out of New Zealand and Tasmania, described as \u2018absolutely biblical.\u2019<\/p>\n

The last time Earth had a G5 \u2013 Extreme geomagnetic storm was in October 2003, resulting in power outages in Sweden and damaged transformers in South Africa.<\/p>\n

Here\u2019s a selection of some of the sightings across the world:<\/p>\n

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Absolutely biblical skies in Tasmania at 4am this morning. I\u2019m leaving today and knew I could not pass up this opportunity for such a large solar storm. Here\u2019s the image. I actually had to de-saturate the colours. Clouds glowing red. Insane. Shot on Nikon. Rt appreciated pic.twitter.com\/210hlkmoeg<\/a><\/p>\n

\u2014 Sean O’ Riordan (@seanorphoto) May 10, 2024<\/a><\/p><\/blockquote>\n

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Um. So. Guys. This is my yard in FLORIDA\u2026 #flwx<\/a> #aurora<\/a> pic.twitter.com\/TX4JtcfsYr<\/a><\/p>\n

\u2014 Logan Parham (@StormChaserLo) May 11, 2024<\/a><\/p><\/blockquote>\n

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I had one of the most amazing experiences today seeing the #Aurora<\/a> in Sanilac County Michigan. Here are my pictures. #NorthernLights<\/a> #MIwx<\/a> pic.twitter.com\/GC8U65VCSB<\/a><\/p>\n

\u2014 Stephen Szulborski (@Stebo_Wx) May 11, 2024<\/a><\/p><\/blockquote>\n

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Nature’s symphony painted the skies tonight!<\/p>\n

Witnessed the strongest aurora in two decades from Switzerland’s Jungfraujoch.<\/p>\n

A breathtaking reminder of the magic in our universe. #Aurora<\/a> #Auroraborealis<\/a> #Nothernlights<\/a>#Jungfraujoch<\/a> #Switzerland<\/a><\/p>\n

pic.twitter.com\/6V3NOR8nsf<\/a><\/p>\n

\u2014 Mr. Shaz (@Wh_So_Serious) May 10, 2024<\/a><\/p><\/blockquote>\n

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More #Aurora<\/a> pic.twitter.com\/AM4NVay5af<\/a><\/p>\n

\u2014 Dr Andrew Dickson reform\/ACC (@AndrewDickson13) May 10, 2024<\/a><\/p><\/blockquote>\n

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What is even happening right now? I feel like I am having a religious experience \u2013 or an alien abduction. Not sure which. #aurora<\/a> pic.twitter.com\/vgDUP0YUC9<\/a><\/p>\n

\u2014 Dr David Boyce (@DrDavidBoyce) May 10, 2024<\/a><\/p><\/blockquote>\n

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Incredible, Mind-blowing live visuals of the Night sky in majority of Europe right now! <\/p>\n

Poland, Germany, Ukraine, Switzerland, Netherlands, Spain, France are witnessing Northern Lights\/Aurora in sky thanks to ongoing Solar Storm!#solarstorm<\/a> #aurora<\/a> pic.twitter.com\/e57Dcxi9zo<\/a><\/p>\n

\u2014 Vishal Verma (@VishalVerma_9) May 10, 2024<\/a><\/p><\/blockquote>\n

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Aizvad\u012bt\u0101 nakts bija visskaist\u0101k\u0101, ko esmu redz\u0113jis. Veicu kr\u0101sas uzlabojumus zieme\u013cbl\u0101zmas fotogr\u0101fij\u0101m. Visas \u0161\u012bs fotogr\u0101fijas ir uz\u0146emtas ar telefonu!@StarSpaceLV<\/a> @MeteoLatvia<\/a> @boms_tricis<\/a>#zieme\u013cbl\u0101zma<\/a> #northernlights<\/a> #aurora<\/a> pic.twitter.com\/QblFjC5WDM<\/a><\/p>\n

\u2014 Linards Dedzi (@LinardsWeather) May 11, 2024<\/a><\/p><\/blockquote>\n

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It\u2019s likely this geomagnetic storm was caused by a Cannibal CME \u2014 when fast-moving CMEs overtake slower CMEs in front of them and merge into one. Forecast models suggest three of them merged into one yesterday. If so, we still have at least 3 more CMEs coming our way.<\/p>\n

Solar researchers believe cannibal CMEs may be the source of \u2018complex ejecta\u2019 CME clouds; those with a larger and more complex structure than typical CMEs. These traits cause complex ejecta CMEs to trigger protracted magnetic storms when they envelop the Earth, according to NOAA.<\/p>\n

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According to SWPC forecasters, periods of G3 \u2013 Strong to G5 -Severe geomagnetic storms are expected on May 11 due to continued CME activity. <\/p>\n

Periods of G1 \u2013 Minor to G2 \u2013 Moderate storming are likely on May 12 due to the anticipated arrival of at least two more halo CMEs associated with activity from Region 3664 on May 9 and 10, in addition to the onset of coronal hole high speed stream (CH HSS) influences.<\/p>\n

Unsettled and active conditions are expected on May 12 due to waning CME influences and continued CH HSS influences.<\/p>\n

For more information about increased solar activity over the past few days, visit:<\/p>\n

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You can follow space weather in near-real-time at SWX and follow us on X<\/a> where we post all C+ solar flares and SWPC Alerts, Watches and Warnings.<\/p>\n

Featured image credit: Dr. Andew Dickson<\/em><\/p>\n

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Major X3.9 solar flare erupts from AR 3664 \u2014 the 10th X-class flare in just 7 days<\/h3>\n

Friday, May 10, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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G4 \u2013 Severe or greater geomagnetic storm forecast as multiple CMEs merge and impact Earth on May 11<\/h3>\n

Thursday, May 9, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Long-duration X1.0 solar flare erupts from geoeffective Region 3664, CME impact expected on May 11<\/h3>\n

Wednesday, May 8, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Giant hailstones destroy over 15 000 homes in Manipur, India<\/h3>\n

Tuesday, May 7, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Large tornado rips through Barnsdall, Oklahoma, causing massive damage and casualties<\/h3>\n

Tuesday, May 7, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Historic floods hit Porto Alegre, Rio Grande do Sul, Brazil<\/h3>\n

Monday, May 6, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Major X4.5 solar flare erupts from Region 3663 \u2014 fourth X-class flare in 3 days<\/h3>\n

Monday, May 6, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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