Geomagnetic Storm Tonight May 27-28 — Watch For Aurora

We still have high clouds but now the aurora is better visible than 15 minutes ago. Extending rays are reaching to the zenith and pulsing. It’s not brilliant, but there’s lots of motion and a strange mix of shapes. Time: 11:15 p.m. CDT. Credit: Bob King

The space weather crew just sent out a revised forecast for a moderate aurora storm (G2) tonight. It’s already underway with Kp=6 as of 8 p.m. (CDT). I encourage you to watch the northern sky as soon as it gets dark. A coronal mass ejection from May 23 has hooked into Earth’s magnetic envelope stoking the activity.

The auroral oval is very active and expanding southward — this is the predicted extent of the oval for 11 p.m. (CDT) tonight. Click here for the current oval. Credit: NOAA

Clear skies!

Right on time! An 11:15 p.m. pass of the International Space Station across the northern lights. The view from 250 miles up the astronauts are getting must be spectacular! Credit: Bob King
Even at 1 a.m. Sunday morning, the aurora was still going strong. I just walked in the door and the north is lit up like dawn. Lots of darting, giant waves, pulsing. No sharp edged forms, everything smooshy and ghostly. Credit: Bob King
How about this for weird? At left are cirrus clouds (with Jupiter), at right, pulses of the aurora. Credit: Bob King

2 Responses

  1. Graham Wolf

    Nice pick, and Bob!! May 28th was a beaut for both of us. Didn’t matter what geomagnetic pole you cuddled up to, mother nature sure dished out two-for-one. We both had a most enjoyable if sleepless night. Thanks Bob, and for the hypertext link to your aurora pick. You sure nailed it. Graham at 46 south, nz.

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