(©UCAR, image courtesy Matthias Rempel, NCAR) "This is the first time we have a model of an entire sunspot," says lead author Matthias Rempel, a scientist at NCAR's High Altitude Observatory. "If you want to understand all the drivers of Earth's atmospheric system, you have to understand how sunspots emerge and evolve. Our simulations will advance research into the inner workings of the Sun as well as connections between solar output and Earth's atmosphere."
By Bob Berwyn
SUMMIT COUNTY — Local ski areas reported an unexpected bonus snowfall Friday morning, with 5 inches at Copper, 4 inches at Keystone and 3 inches at A-Basin.
With the north-central mountains under a northwest flow, snow showers could persist Friday. Mountains oriented perpendicular to the wind could squeeze out a few more inches of snow as the moist air is pushed up the slopes.
Most of that snow will fall along the Front Range and Continental Divide, so A-Basin could get lucky. Keep your fingers crossed. Saturday morning looks a bit drier, but another plug of moist air could move across the area Saturday afternoon, bringing snow as far south as the northern San Juans. according to the weather experts with the Colorado Avalanche Information Center.
In the backcountry, human-triggered avalanches remain probable on north through southeast aspects through Friday, with the hazard rated as “considerable” on slopes near and above treeline. For other parts of the zone, the hazard is rated as “moderate,” which means a continued possibility of human-triggered slides. (more…)
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