Aurora Alert: Extreme (G5)

Observed again at 2024-05-11 11:28 UTC (07:28 EDT), and storming of varying intensity will persist through at least Sunday. Currently the solar wind speed is above 800 km/s and the Bz component is south (-21nT).
The threat of additional strong flares and CMEs will remain until the large and magnetically complex sunspot cluster (NOAA Region 3664) rotates out of view over the next several days. There have been reports of power grid irregularities and degradation to high-frequency communications and GPS. Overnight, aurora were visible across much of the United States, UK, Europe, Australia.

Alerta de aurora: Condições extremas (G5)

Foram observadas novamente às 2024-05-11 11:28 UTC (07:28 EDT), e tempestades de intensidade variável persistirão pelo menos até domingo. Atualmente a velocidade do vento solar está acima de 800 km/s e o componente Bz é sul (-21nT).
A ameaça de explosões fortes adicionais e CMEs permanecerá até que o grande e magneticamente complexo aglomerado de manchas solares (NOAA Região 3664) gire fora de vista nos próximos dias. Houve relatos de irregularidades na rede elétrica e degradação das comunicações de alta frequência e GPS. Durante a noite, auroras foram visíveis em grande parte dos Estados Unidos, Reino Unido, Europa, Austrália.
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