"An ongoing geomagnetic storm cast mesmerizing streaks of pink and green light across California skies on Tuesday night. The display marked a rare California sighting of the northern lights, or aurora borealis, a phenomenon typically only observed at higher latitudes. Reports of the spectacle streamed in from across the United States, including the South. It could happen all over again on Wednesday night."
""We had three coronal mass ejections leave the Sun since late last week. The third and final one is expected to impact our atmosphere later today and tonight," Mike Bettwy, the operations chief at the National Oceanic and Atmospheric Administration's Space Weather Prediction Center, wrote to SFGATE on Wednesday. "It is difficult to predict with a high degree of certainty or precision, but it is possible this will be as impactful as last night's event.""
A severe geomagnetic storm produced pink and green auroras across California, a rare sight typically confined to higher latitudes. Reports of the display came from across the United States, including southern regions. Three coronal mass ejections left the Sun since late last week, with a third expected to impact Earth's atmosphere later today and tonight. Northern California has the best chance for vibrant viewing, though cloud cover may obscure much of the San Francisco Bay Area, with possible clearings along the Central Coast, Central Valley and southern Sierra Nevada. Observers are advised to move away from city lights and use smartphone cameras, which can often detect auroras invisible to the naked eye. The Space Weather Prediction Center rated the storm as peaking at G4 on NOAA's scale, and forecasters warn the storm could lead to disruptions.
Read at SFGATE
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