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Edmonton Weather

Light Rain and Snow
Observed at: Edmonton Int'l Airport 7:22 PM MST Saturday 9 November 2024
Condition: Light Rain and Snow
Temperature: 0.7°C
Pressure: 101.5 kPa falling
Visibility: 19 km
Humidity: 100 %
Dewpoint: 0.7°C
Wind: SSE 6 km/h
Air Quality Health Index: 2
]]> Courtesy of Environment Canada

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Has the CME arrived yet (Oct 30, 2021)? Print E-mail
Saturday, 30 October 2021

The solar wind (particles that constantly stream outward from the sun) has a typical speed of 400 km/s. A coronal mass ejection (CME—the emission from the sun that causes Aurora) typically has a speed of 1000-2000 km/s.

The ACE satellite sits 1.4M km sunward from Earth, measuring the solar wind speed. You can see the data here: ACE SWEPAM DATA. The yellow trace shows the current solar wind speed and when this rapidly increases well above 400 km/s then the CME is 15 minutes away!

Last Updated ( Saturday, 30 October 2021 )
 
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