For many in US, the solar eclipse could be eclipsed by clouds (+video)
An early-season nor'easter is to blame for the widespread cloud cover in the Eastern US that threatens to obstruct the view of the moon as it passes between the sun and the Earth.
Viewers throughout most of the United States are in position to see a partial solar eclipse Thursday afternoon (Oct. 23). Unfortunately, clouds will likely get in the way in some parts of the country.
One of those regions is the northeastern United States, including all of New England. In addition, Delaware, Maryland and Virginia will also fall victim to widespread cloud cover that could scuttle attempts to view the partial solar eclipse.
The culprit is an early-season nor'easter, a low-pressure storm system sitting off Cape Cod that will generate lots of clouds. The clouds may also be accompanied by areas of rain, drizzle and fog. So extensive are the nor'easter's effects, in fact, that clouds might even extend as far west as West Virginia and Ohio. [Partial Solar Eclipse of October 2014: Visibility Maps]
You can watch the solar eclipse webcast at Space.com beginning at 5 p.m. EDT (2100 GMT), with live feeds available from the Slooh Community Observatory, Griffith Observatory in Los Angeles and the University of Arizona's SkyCenter at Mount Lemmon.
Over the nation's midsection, a band of high- to mid-level cloudiness extending from Minnesota and the eastern Dakotas south to Oklahoma and through central Texas might allow for only some occasional glimpses of the eclipse.
The clouds might be thin enough at times to allow viewers to see the eclipsed sun, but even so, prospective viewers are strongly warned not to stare at the sun. Even though its visible light might be considerably reduced, our star's dangerous ultraviolet and infrared wavelengths will still penetrate the clouds and can damage your eyesight without your immediately being aware of it. View a solar eclipse only indirectly, orwith appropriate filters.
Across much of Washington state, Oregon and Northern California, a cold front moving inland from the Pacific Ocean will probably generate cloud cover as well as scattered precipitation, which likely will hide much, if not all, of the solar eclipse from view.
Finally, a band of cloudiness over south Florida could also cause problems for some viewers in the Sunshine State.
Most other locations should have good to excellent viewing conditions for the eclipse. People in the north-central and northwestern United States will see the greatest percentage of the solar disk covered by the moon — nearly 70 percent in Juneau, Alaska, for example, and 64 percent in Seattle.
As one heads farther east, less of the sun will be covered by the moon. Near the Atlantic seaboard, the sun will either set before the peak of the eclipse is reached, or before the eclipse has even begun.
As a bonus, people in some locations might see the edge of the moon graze or hide an unusually large sunspot now nearing the middle of the solar disk. Those using safe solar filters can readily see this large spot, known as Active Region 2192, with their naked eye.
For the latest forecast in your neighborhood, check the National Weather Service to find the direct link to the National Weather Service Forecast office that serves your local area.
Editor's Note: If you take an amazing skywatching photo of the partial solar eclipse or any other celestial sight that you'd like to share for a possible story or image gallery, please contact managing editor Tariq Malik at email@example.com.
Joe Rao serves as an instructor and guest lecturer at New York's Hayden Planetarium. He writes about astronomy for Natural History magazine, the Farmer's Almanac and other publications, and he is also an on-camera meteorologist for News 12 Westchester, N.Y. Follow us @Spacedotcom, Facebook or Google+. Originally published on Space.com.
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