Forecast: Auroral activity will be high. Weather permitting, highly active auroral displays will be visible overhead from Barrow to Bethel, Dillingham and Ketchikan, and visible low on the horizon from King Salmon.
Forecaster Comments: A solar event near the limb took us by surprise. The effects of this event were first felt early on the 23rd GMT, but the ejecta from the sun arrived just now (5:30pm Apr 23 GMT).
Tonight there will be aurora over the northern tier of the US, Northern UK, Southern Scandinavia, and Southern Alaska. Observers in Southern New Zealand and Tasmania should watch the sky tonight, if the activity proves to be long-lasting.