A CANNIBAL CME IS COMING: NOAA models confirm that a Cannibal CME will strike our planet on Dec. 1st. Cannibal CMEs form when a fast CME sweeps up a slower CME ahead of it. The combination contains intense, tangled magnetic fields that can do a good job sparking auroras when they reach Earth. If a Cannibal CME strikes Earth on Dec. 1st, as predicted, geomagnetic storm levels could reach category G3 (Strong). Aurora alerts: SMS Text
WHAT HAPPENS DURING A STRONG GEOMAGNETIC STORM? Earth could experience a strong (G3) geomagnetic storm this week. If so, here's what we can expect. The last G3-class storm on Nov. 5th sparked not only bright auroras, but also deep-red SAR arcs around the world. Greg Redfern photographed this example from the Shenandoah National Park in Virginia:
"I didn't realize I had photographed an SAR arc until I processed my images the next day, stitching two of them together to reveal its shape," says Redfern.
WHAT HAPPENS DURING A STRONG GEOMAGNETIC STORM? Earth could experience a strong (G3) geomagnetic storm this week. If so, here's what we can expect. The last G3-class storm on Nov. 5th sparked not only bright auroras, but also deep-red SAR arcs around the world. Greg Redfern photographed this example from the Shenandoah National Park in Virginia:
"I didn't realize I had photographed an SAR arc until I processed my images the next day, stitching two of them together to reveal its shape," says Redfern.
