Astroblog: Aurora watch and GEOMAGNETIC WARNING June 5-6

Friday, June 05, 2026

Aurora watch and GEOMAGNETIC WARNING June 5-6

The Australian Space Weather Forecasting Centre reports three coronal mass ejections (CMEs) have been observed associated with two M-class and one X-class flares from region 4455.

Modelling indicates the second and third CMEs have an estimated arrival at Earth on 05-Jun at 10:00UT +/- 10 hrs (anywhere from 2pm the 5th AEST to 6 am the 6th AEST). G2 planetary geomagnetic conditions are expected, with a chance of G3.

If storms eventuate, visible aurora may be seen in Tasmania and possibly southern parts of Victoria, South Australia and Western Australia during local night hours.

The Moon is waning and heading towards Last Quarter. It will interfere with seeing aurora in the early morning. Keep an eye out and be patient, as the magnetic polarity of the wind fluctuates significantly and aurora may come and go.

Dark sky sites have the best chance of seeing anything, and always allow around 5 minutes for your eyes to become dark adapted.

Current K index is 2 and
Solar Wind Parameters Used: Date: 05 06 2026 0706 UT
Velocity: 454 km/sec
Bz: -1.0 nT
Density = 8.0 p/cc

As always look to the south for shifting red/green glows, mostly green at the moment.

Cloud cover predictions can be found at SkippySky. https://www.skippysky.com.au/Australia/index.html
Here is the near-real time satellite view of the clouds (day and night) http://satview.bom.gov.au/
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INCREASED GEOMAGNETIC ACTIVITY EXPECTED
DUE TO CORONAL MASS EJECTION
FROM 05-06 JUNE 2026
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GEOMAGNETIC ACTIVITY FORECAST