Thu 13 May 2021 11:47 MDT
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Edmonton Weather

Partly Cloudy
Condition: Partly Cloudy
Temperature: 17.3°C
Pressure: 102.0 kPa rising
Visibility: 32.2 km
Humidity: 36 %
Dewpoint: 2.4°C
Wind: NW 21 km/h
Air Quality Health Index: N/A
Observed at: Edmonton Int'l Airport 11:00 AM MDT Thursday 13 May 2021
Courtesy of Environment Canada

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News Archive
Increased chance of Aurora Dec 9-11 Print E-mail
Written by Andy Kale   
Wednesday, 09 December 2020

There is a potential for increased activity tonight and for the next couple of days due to an inbound coronal mass ejection that accompanied a solar flare. A solar flare is a release of energy on the sun due to a rapid reconfiguration of the magnetic field near sunspots. This burst of energy (radiation) occurs across all wavelengths. A coronal mass ejection is an emission of plasma from the sun. It is these particles that will eventually reach the Earth and potentially 'rain-down' into the upper atmosphere treating everyone to a show.

The weather forecast for the next few days suggest little cloud (though the weather forecasts at the moment are less accurate!) providing clearer skies. See the Environment Canada cloud forecast.

Upstream conditions are measured by a satellite called ACE, sitting between the Earth and the Sun (orbiting the L1 point): https://services.swpc.noaa.gov/images/ace-mag-swepam-6-hour.gif

For a good display we would like to see the particle density and speed increase increase (indicating the CME has arrived), together with a Bz being negative (indicating the interplanetary magnetic field is pointing south). This would give the best conditions to let the particles to get into the Earth's magnetic field (the magnetosphere).

The good news for aurora watchers is that these particles can disrupt the magnetic field of the Earth enabling trapped particles to also 'rain-down' for a couple of days. So if you don't get chance to see anything tonight, you might stand a chance tomorrow too!

 
July 2018 Print E-mail
Written by Andy Kale   
Tuesday, 11 September 2018

Despite being a very quiet July, the aurora did make a little show... Thanks go to and D and T Tanner.

Last Updated ( Tuesday, 11 September 2018 )
Read more...
 
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