Saturday, December 10, 2011
Thursday, December 8, 2011
Last Total Lunar Eclipse Until 2014 On Saturday Morning
The last Total Lunar Eclipse until 2014 will occur this Saturday morning, favoring viewers all along the Pacific Rim, including the Western U.S. However, those of us on the East Coast will not be able to see this eclipse because our moonset time is before the eclipse begins. The first hints of the "red shadow" will not be visible until 7:45 AM EST. 
(Click here to see a map of where the eclipse will be visible in the World).
In Richmond, the moon sets Saturday morning at 7:12 AM, about the time the Sun rises at 7:13 AM. So even if we could see some of that initial shadow being cast by the Earth onto the Moon, it will be nearly impossible to see because of the Dawn.
On the West Coast, though, the Moon will enter "totality" of the eclipse at 6:05 AM PST (which is 9:05 AM EST, well after we can't see the Moon anymore on the East Coast). West Coasters will see a pre-sunrise eclipse of beautiful proportions. Atmospheric scientist Richard Keen of the University of Colorado predicts, "I expect this eclipse to be bright orange, or even copper-colored, with a possible hint of turquoise at the edge." The reason why these colors hue the Moon from our perspective here on Earth is because of our own stratosphere. As the Moon's light is scattered through the Earth's atmosphere back to our eyes, the light waves that "survive" the scattering are reddish.
Watch this NASA video to learn more:
Because we will miss watching the eclipse on the East Coast, you can click here to watch this animation demonstrating what it will look like to our western neighbors.
--Meteorologist Carrie Rose
(Click here to see a map of where the eclipse will be visible in the World).
In Richmond, the moon sets Saturday morning at 7:12 AM, about the time the Sun rises at 7:13 AM. So even if we could see some of that initial shadow being cast by the Earth onto the Moon, it will be nearly impossible to see because of the Dawn.
On the West Coast, though, the Moon will enter "totality" of the eclipse at 6:05 AM PST (which is 9:05 AM EST, well after we can't see the Moon anymore on the East Coast). West Coasters will see a pre-sunrise eclipse of beautiful proportions. Atmospheric scientist Richard Keen of the University of Colorado predicts, "I expect this eclipse to be bright orange, or even copper-colored, with a possible hint of turquoise at the edge." The reason why these colors hue the Moon from our perspective here on Earth is because of our own stratosphere. As the Moon's light is scattered through the Earth's atmosphere back to our eyes, the light waves that "survive" the scattering are reddish.
Watch this NASA video to learn more:
Because we will miss watching the eclipse on the East Coast, you can click here to watch this animation demonstrating what it will look like to our western neighbors.
--Meteorologist Carrie Rose
Wednesday, December 7, 2011
Update on rain and snow Wednesday in Virginia
A slow-moving storm system will finally clear the eastern U.S. by Thursday morning. This Wednesday morning, though, rain continues to track northeast through the western and northern parts of our state, producing some flooding problems in low-lying areas and along creeks and streams. Storm total rainfall should range one to two inches in this part of Virginia, which is why a Flood Watch will remain in effect until 7PM.
For the southeastern half of Virginia, rain totals will remain an inch or less, with the lowest totals at just a quarter-inch in Hampton Roads.
As the surface cold front sweeps southeast this afternoon and evening, much colder air will surge into the region behind it. Winds will shift to the northwest behind the front, with deep, cold air reaching western Virginia before the precipitation ends. This will change the rain to snow, allowing for as much as three to six inches of snowfall accumulation in elevations above 1500 feet! Therefore, a Winter Storm Watch is in effect for that part of Virginia through tonight.
It still looks like the rain will end in central Virginia before the deepest, cold air can settle into the region. There will be a tiny window of opportunity between 10 PM to just after Midnight for the ending rain to briefly change over to snow. Nothing will stick, though, as both air and ground temperatures will still be well above freezing in central Virginia, and remain above freezing into Thursday morning. Here's one forecast demonstrating what snow may fall, but likely not all of this will end up sticking (except in the higher elevations of western VA):
Stay with CBS 6, we'll keep you ahead of the storm!
--Meteorologist Carrie Rose
For the southeastern half of Virginia, rain totals will remain an inch or less, with the lowest totals at just a quarter-inch in Hampton Roads.
As the surface cold front sweeps southeast this afternoon and evening, much colder air will surge into the region behind it. Winds will shift to the northwest behind the front, with deep, cold air reaching western Virginia before the precipitation ends. This will change the rain to snow, allowing for as much as three to six inches of snowfall accumulation in elevations above 1500 feet! Therefore, a Winter Storm Watch is in effect for that part of Virginia through tonight.
It still looks like the rain will end in central Virginia before the deepest, cold air can settle into the region. There will be a tiny window of opportunity between 10 PM to just after Midnight for the ending rain to briefly change over to snow. Nothing will stick, though, as both air and ground temperatures will still be well above freezing in central Virginia, and remain above freezing into Thursday morning. Here's one forecast demonstrating what snow may fall, but likely not all of this will end up sticking (except in the higher elevations of western VA):
Stay with CBS 6, we'll keep you ahead of the storm!
--Meteorologist Carrie Rose
Subscribe to:
Posts (Atom)