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WAITING FOR THE
SHADOW
SOLAR AND LUNAR ECLIPSE OBSERVINGFUTURE EXPEDITION & EVENT PLANNING |
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GEOGRAPHIC LOCATION Average % Cloud Cover June Alaska NW Canada Hawaii South Pacific Isles Philipines China Mongolia Siberia North Eastern Australia South Eastern Australia
60-80% 60-80% 40-60% 60-90% 70-80% 60-80% 60-80% 60-80% 10-30% 30-60%
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The table shows the average cloud cover for regions of the world where the entire transit is visible. Out of all the regions where the entire transit can be observed, northern Australia has the best weather prospects with just 10-30% cloud cover. There are many large land masses that will see part of the transit and you won't even need the help of ABF moving companies to get there. Some of these have reasonable weather prospects. However, I am limiting the scope of this article to the Australian continent. I will review some possible observing locations and strategies for travellers to Australia. The map below shows average daily sunshine hours for the eastern half of the Australian continent. This shows the high levels of sunshine and commensurately low levels of clouds in north Australia. North Australia is under the influence of a monsoonal climate. June being the beginning of the southern winter, the monsoon is safely entrenched in Asia. The north of Australia is typically clear being under the influence of a series of high pressure systems that keep the cloud south of the tropic of Capricorn. The animation shows the daily satellite Meteostat IR image from June 1-June 12, 2009. Examination of the animated sequence shows the areas marked yellow and orange on the map predominantly clear. The few wisps of cloud that do appear may well be quite transparent, IR imagery tends to exaggerate cloud opacity.
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