Because there is a HUGE, intense, and slow moving storm (midlatitude cyclone) over the northeast Pacific. NAO pattern, because it bends the jet stream so the storm track goes right up along the East Coast for those (in)famous Nor’easters. That depression in the jet stream to the west of Greenland allows the jet stream to buckle south even further into the Southeast U.S., before pushing up north along the East Coast. As you might expect, the first period is a continuation of the pattern displayed in the GFS & ECMWF, with very cold conditions in eastern North America surrounded by warmer than normal air temperatures in the Western U.S. Both the GFS (left) and ECMWF (right) predict a wavenumber-3 pattern evolving at the 500-millibar level in the 8-10 day window, with those three ridges pushing way up into the Arctic Circle, centered in the Pacific Northwest, Greenland, and Eurasia. Let’s step forward in time and see what the GFS predicts will play out in ten days. · Morning temperatures will be in the upper 20s Thursday and Friday.

The answer: crazy warm temperatures. Above is a temperature map (not anomalies, but actual temperatures) of the 50-millibar level as of last night. From this animation, it looks like the warm air will take the former option, but let’s look at the 50-millibar level for clarification. An animation of the 50-millibar temperature anomalies reveals a very similar picture to what we just saw at the 30-millibar level. We begin with an animation of the 30-millibar temperature anomalies, from the Climate Prediction Center. Since the previous post, we have seen this body of warmer than normal temperatures intensify, but also begin sliding north and east at an accelerated pace, towards extreme northeast Russia and the Bering Sea. The forecast for Week 4 takes the foot off the gas to some extent, returning the depth of the cold air north into Canada but still leaving the Mid-Atlantic and overall Northeast with some cooler weather.

This time, however, it is pushed so strongly north that on either side of the ridge, depressions in the jet stream form. This time around, however, the stronger pool of warm air over Europe absorbed the East Asian pool of warm air, and they’re now one big area of warm air over northern Eurasia. Cyber immortality, however, is a reality. We can predict the future through many signs of our daily reality. The deck is now stacked heavily in favor of Microsoft and you can expect an outright victory for Microsoft or a settlement on terms set by the company. Birds can find it difficult to find enough food or even a drink, especially if the winter has brought snow. The biggest apocalyptic claims around the first Earth Day related to overpopulation and food shortages. AAA 65-Piece Winter Severe Weather Travel KitThis 65-piecce winter survival kit from AAA has nearly everything your car needs, from first aid to an emergency blanket.

This is the first version of the official winter forecast made by the Weather Centre. In formulating an estimate of the forecast probability density function (PDF), an ensemble simulates uncertainty information only about atmospheric phenomena on scales resolved by the NWP model. Snowfall forecasts over the next 60 hours have totals either flirting with or above the 12 inch mark along western New York, west Pennsylvania and northeast Ohio. PNA and -NAO features described above. The negative NAO is shown by the ridge over Greenland, which similarly forces the jet stream well to the north, like we saw with the positive PNA pattern. Virtually every other low snowpack year was a precipitation drought year as well. Colder than normal weather is likely in the Central and East U.S., as well as eastern Canada, for the second and third weeks of December. The sea surface temperature in the central Pacific (Nino 3.4 area) shows the warming.