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Joshua Feldman

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The Pacific jet stream is still roaring. Late last week a winter storm battered the West Coast with up to 6″ of rain and several feet of snow in mountainous areas. This same storm system is soon expected to become reinvigorated east of the Rocky Mountains with Gulf of Mexico moisture. The low will generate life-threatening, flooding rains across much of the South while spreading snow and rain across portions of the Midwest and Northeast.The low will slowly trek eastward toward the southern Plains throughout the first half of the week, but will ensnare itself trying to cross the Rocky Mountains. Its parent upper-level support will escape ahead of the surface low pressure system and help pull moisture northward out of the Gulf of Mexico. The subtropical Gulf air will collide with a much colder airmass of Canadian origin. The collision of the two airmasses will produce heavy snow in…

The budding warmth overspreading the eastern half of the US this week comes at a striking cost. A building contrast between the arctic and the Gulf of Mexico will culminate in two days of flooding downpours and thunderstorms over the Ohio River Valley and lower Mississippi Valley between Wednesday morning and Thursday night. High temperatures Wednesday and Thursday in the Ohio Valley will soar into the 60s to near 70°F . This warmth comes just one week after an arctic blast delivered punishing subzero low temperatures across the Midwest. But winter won’t be far away. The region will reside along the boundary between winter and spring. High temperatures will only be in the 30s closer to Lakes Michigan and Erie. Unfortunately, winter-weary residents of the Ohio and Middle-Mississippi River Valleys will have little opportunity to enjoy the reprieve. The clash of the two air masses will produce heavy rainfall along…

The wretched polar vortex responsible for last week’s deadly arctic blast is retreating back to the North Pole. In its departure temperatures are on a soaring rebound as the Gulf of Mexico opens its reservoir of balminess for parts of the Eastern US to bask in for up to six days. Some areas will undergo a temperature upswing of more than 60°F early this week compared to last week. Though Punxsutawney Phil did not see his shadow Saturday, this week’s warmth is not indicative of an early spring. Winter cold will return by next weekend. The active Pacific jet stream is expected to continue to dominate this week as it has all winter. The brutal cold faced by much of the contiguous US over the last few weeks was instilled mainly by the polar jet stream, but influences from the Pacific jet were not wholly eliminated. Storm systems in either…