{"id":787136,"date":"2024-08-12T04:31:52","date_gmt":"2024-08-12T09:31:52","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=787136"},"modified":"2024-08-12T04:31:52","modified_gmt":"2024-08-12T09:31:52","slug":"g3-strong-geomagnetic-storm-following-multiple-cme-impacts","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=787136","title":{"rendered":"G3 – Strong geomagnetic storm following multiple CME impacts"},"content":{"rendered":"


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A G3 \u2013 Strong geomagnetic storming was observed on August 12, 2024, following multiple impacts from coronal mass ejections (CMEs) produced since August 7.<\/strong><\/p>\n

The solar wind environment was enhanced over the past 24 hours, due to persistent CME effects from the likely arrival of the CMEs produced on August 7, followed by the arrival of a CME associated with the X1.3 solar flare on August 8.<\/p>\n

The total field reached 21 nT, Bz saw a maximum southward deflection to -15 nT, and wind speeds peaked at 539 km\/s. Phi was in a mostly negative orientation through 13:20 UTC on August 11 UTC when it switched into a positive position through the remainder of the period, SWPC forecasters said at 00:30 UTC today.<\/p>\n

Geomagnetic K-index of 5 (G1 \u2013 Minor geomagnetic storm) threshold was reached at 08:35 UTC on August 11 and continued at active to G1 levels through 00:56 UTC on August 12 when G2 \u2013 Moderate geomagnetic storming was observed.<\/p>\n

G3 \u2013 Strong geomagnetic storm conditions (Geomagnetic K-index of 7) were observed at 05:28 UTC and again at 08:11 UTC today.<\/p>\n

A G3 \u2013 Strong geomagnetic storm can primarily affect areas poleward of 50 degrees Geomagnetic Latitude. It may cause power system voltage irregularities and trigger false alarms in protection devices. Spacecraft might experience surface charging, increased drag, and orientation issues. GPS navigation could be intermittently disrupted, leading to signal loss and increased range errors. HF radio communications might also be affected.<\/p>\n

As a result, red aurora was observed as far south as Nevada, U.S. With the Perseid meteor shower peaking at this time, some of the photographers made lucky shots showing both:<\/p>\n

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After several days of #solarstorm<\/a> fizzles, this current storm is packing a nice punch! It peaked at G3+ levels, but has given us the most memorable #aurora<\/a> since the Gannon storm in May. New Zealand, Tasmania & possibly Victoria Australia, keep your eyes peeled. You’re up next! https:\/\/t.co\/WFNsfoSsVk<\/p>\n

\u2014 Dr. Tamitha Skov (@TamithaSkov) August 12, 2024<\/a><\/p><\/blockquote>\n

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Got lucky with this one at Lincoln City, OR tonight! pic.twitter.com\/gchy1rmKdX<\/a><\/p>\n

\u2014 AZCuMiner (@miner_az) August 12, 2024<\/a><\/p><\/blockquote>\n

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Zeldzame combinatie: vallende sterren met #noorderlicht<\/a> boven Nederland! We kijken terug op een magische nacht. De bloeiende heide hier vlakbij huis maakte het helemaal af\u2026 #PerseidMeteorShower<\/a> pic.twitter.com\/6Bq4nIxCrP<\/a><\/p>\n

\u2014 Wouter van Bernebeek (@StormchaserNL) August 12, 2024<\/a><\/p><\/blockquote>\n

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Can\u2019t believe I got auroras again in Southern Nevada tonight at Tule Springs Fossil Beds National Monument just north of Las Vegas! Not as bright as in May but had some bonus lightning from a distant thunderstorm! #NvWx<\/a> #NevadaAurora<\/a> #aurora<\/a> #Auroraborealis<\/a> pic.twitter.com\/0a7RzPn360<\/a><\/p>\n

\u2014 David J. Syzdek (@dsyzdek) August 12, 2024<\/a><\/p><\/blockquote>\n

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#aurora<\/a> Northern Wisconsin corona through the clouds @TamithaSkov<\/a> @eljakeo30<\/a> @TweetAurora<\/a> @AngelBrise_<\/a> pic.twitter.com\/Vn2S0VkEim<\/a><\/p>\n

\u2014 Corinne (@AuroraNorthWI) August 12, 2024<\/a><\/p><\/blockquote>\n

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The Sky is ALIVE in St. Catharines, Ontario right now!<\/p>\n

Massive Aurora Display Tonight (Aug 12th, 2:20 am)@weathernetwork<\/a> @StormHour<\/a> @CTVNews<\/a> @CTVToronto<\/a> #northernlights<\/a> #aurora<\/a> #Auroraborealis<\/a> pic.twitter.com\/M1mLHTEsYN<\/a><\/p>\n

\u2014 AstroBackyard (@AstroBackyard) August 12, 2024<\/a><\/p><\/blockquote>\n

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Solar wind parameters are expected to see further enhancements today as the two CMEs from August 8 and 10 are anticipated to pass at or near Earth. However, confidence in the expected magnitude of these CMEs is low.<\/p>\n

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\"station-k-index<\/figure>\n<\/div>\n
\"rtsw<\/figure>\n
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\"sunspots
Sunspots on August 12, 2024. Credit: NASA SDO\/HMI<\/figcaption><\/figure>\n<\/div>\n

Solar activity was at moderate levels over the past 36 hours, with several M-class flares and a couple of C-class. No new Earth-directed CMES were detected in available satellite data.<\/p>\n

Solar activity is expected to be at moderate to high levels, with 75% of M-class and 30% of X-class solar flares through August 14.<\/p>\n

There is a slight chance for S1 \u2013 Minor solar radiation storming through August 14. The greater than 2 MeV electron flux is expected to remain at normal to moderate levels.<\/p>\n

References:<\/p>\n

1<\/sup> Forecast Discussion \u2013 NOAA\/SWPC \u2013 Issued at 00:30 UTC on August 12, 202<\/p>\n

Featured image: Aurora over Government Camp, Oregon captured on August 11, 2024. Credit: Quinn, SpaceWeather <\/em><\/p>\n

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Long-duration X1.3 solar flare erupts from geoeffective region<\/h3>\n

Thursday, August 8, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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G3 \u2013 Strong geomagnetic storm in progress<\/h3>\n

Sunday, August 4, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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New Van Allen radiation belt formed after powerful solar storms in May 2024<\/h3>\n

Sunday, August 4, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Impulsive X1.5 solar flare erupts from geoeffective Region 3764, G3 \u2013 Strong geomagnetic storm watch<\/h3>\n

Monday, July 29, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Multiple Earth-directed CMEs, significant geomagnetic storming possible<\/h3>\n

Sunday, July 28, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Major X14 solar flare erupts on the Sun\u2019s far side, the strongest flare of Solar Cycle 25<\/h3>\n

Friday, July 26, 2024<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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S1 \u2013 Minor solar radiation storm in progress<\/h3>\n

Tuesday, July 23, 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<\/div>\n