Aurora Forecast for Saturday, May 10, 2008
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LOW: |
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| Name of forecaster: Charles Deehr
Time of prediction: 4/28/2008 9:26:00 PM* |
| Forecast:
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Additional Forecaster comments: Next active periods are:May 2-12. During these periods, activity numbers will range between 3 and 5.
Viewing the Aurora in the Northern Summer
During the northern summer, sunlight prevents viewing the aurora at high northern latitudes. As the sun climbs in the sky until June 21st and then descends, the nights are too light to see the aurora. Because the magnetic pole is displaced toward North America, the auroral zone shown on our maps is at low enough latitudes to be seen even in the summer. Here are the rules of thumb:
North of 65 degrees latitude, aurora viewing very limited May 1 -- August 10. The auroral index should be 2 or more to see it south of this latitude.
North of 60 degrees latitude, aurora viewing very limited May 15 -- August 1. The auroral index should be 3 or more to see it south of this latitude.
North of 55 degrees latitude, aurora viewing very limited June 10 July 1. The auroral index should be 4 or more to see it south of this latitude.
South of 55 degrees latitude, the aurora should be visible to observers in Canada and the northern US all summer if the auroral index is 4 or more.
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| * Alaska Daylight Time (AKDT) is 8 hours behind Greenwich Mean Time
(GMT) or Universal
Time (UT). Alaska Standard Time (AKST) is 9
hours behind GMT or or UT. Forecast provided by: Geophysical Institute |
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