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pi_169495040
quote:
A classic late-season nor’easter has all the ingredients to produce what could be near-record-heavy March snow and dangerously strong winds in coastal cities from Washington, D.C., to Boston. But if the devil were ever in the details, it’s right now. The dividing line between rain and snow in this storm, dubbed Stella by The Weather Channel, will be close enough to the Interstate 95 corridor to keep forecasters sweating. Right now it appears that the meteorological bounty will be mainly in the form of snow for the big East Coast cities. However, just a minor shift in track could bring rain or sleet into the metropolitan areas, at least for a brief period.

There’s no doubt that a big storm is in the cards. Upper-level energy from two sources—a large trough swinging across the Midwest and a upper-level wave at the base of this trough over the Southern Plains—will be joining forces along the East Coast by Tuesday. The interplay between these two factors is just one of the elements of uncertainty on the table.

What’s clear is that a surface low off the central Gulf Coast on Monday morning will begin to strengthen near the Outer Banks Monday night, then rapidly intensify as it moves northeast along and/or just off the East Coast through the day on Tuesday. As shown in Figure 1 below, the 12Z Monday run of the GFS model deepens the low 23 millibars in 24 hours, from 2:00 am EDT Tuesday to 2:00 am Wednesday, as it moves from near Cape Hatteras, NC (1000 mb), to the central coast of Maine (977 mb). This would bring the low very close to the official definition of a meteorological “bomb”—a midlatitude low that deepens at least 24 millibars in 24 hours.


https://www.wunderground.(...)er-looms-for-tuesday

[ Bericht 3% gewijzigd door #ANONIEM op 13-03-2017 21:40:02 ]
  Moderator dinsdag 14 maart 2017 @ 11:33:54 #78
8781 crew  Frutsel
pi_171671503
It May Be June, But Snow is Falling Early This Week in Parts of the West


Snow is coating parts of the mountain West for the beginning of June's second full week as an unseasonably cold air mass infiltrates the northwestern United States.

The National Weather Service (NWS) in Reno, Nevada, dubbed the wintry weather pattern "Juneary" in a tweet that showed snow falling as low as 5,800 feet in elevation in California's Sierra Nevada early Monday morning.

Measurable snow was also observed at Lake Tahoe on Monday morning. That only happens in June about every 5 to 10 years, the NWS said.

In the central Nevada town of Austin, up to 10 inches of snow had been reported as of Monday morning.

A trace of wet snow fell in Elko, Nevada, Monday morning, making it one of the latest occurrences of observable snow in records dating to 1889, according to the NWS.

Incline Village, Nevada, measured 3 to 6 inches of snow Sunday into Monday.

A webcam at Gilmore Summit in Lemhi County, Idaho, showed snow falling there early Tuesday morning.

https://www.wunderground.(...)des-northern-rockies
pi_171674085
Zag het ook op twitter voorbij komen, diverse weerstations berichtte erover. Dacht eerst dat ik het verkeerd las en Australië werd bedoeld (daar sneeuwt het ook) maar idd west-Amerika, lol!
pi_171675026
quote:
0s.gif Op dinsdag 13 juni 2017 19:40 schreef Adrie072 het volgende:
Zag het ook op twitter voorbij komen, diverse weerstations berichtte erover. Dacht eerst dat ik het verkeerd las en Australië werd bedoeld (daar sneeuwt het ook) maar idd west-Amerika, lol!
best wel bizar. Komt zeker in april en mei nog wel voor, maar juni is behoorlijk laat voor sneeuw.
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