Tue 23 Jul 2024 09:11 MDT
Home arrow News Archive arrow Increased chance of Aurora Dec 9-11

Edmonton Weather

Observed at: Edmonton Int'l Airport 8:25 AM MDT Tuesday 23 July 2024
Condition: Smoke
Temperature: 21.0°C
Pressure: 100.8 kPa falling
Visibility: 5 km
Humidity: 90 %
Humidex: 28
Dewpoint: 19.3°C
Wind: SSE 24 km/h gust 41 km/h
Air Quality Health Index: n/a
]]> Courtesy of Environment Canada

Calling Radio Hams...

radio tower
Are you an amateur radio operator? Do you want to use the Aurora to boost your range? Meet a like minded person, right here...


feed image
feed image

Email Alerts!

Email alert
Receive AuroraWatch Alerts straight to your email account!

Already signed up? Manage your account

Athabasca U. All Sky Image (BETA)

Athabasca U. ASI

Live (after dark) all sky image from Athabasca University. Click the image to visit their site for more information.

AuroraWatch widget for your website

Get AuroraWatch on YOUR webpage!
Would you like to have Aurora predications right on your website for FREE!? Try our AuroraWatch widget..

Increased chance of Aurora Dec 9-11 Print E-mail
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!

< Prev   Next >