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Joshua Feldman

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A series of mid-level disturbances will ride along the flow of an upper-level region of high pressure centered over the Mississippi Valley, triggering several rounds of thunderstorms for the Northern Plains and Upper Midwest through Sunday. The least active day will be Friday, where Minnesota and Wisconsin will face scattered thunderstorms both in the morning and the evening. Strong wind gusts and isolated large hail will be the main threats with Friday’s storms. The morning storms are not expected to be severe.ย  A moist surface layer will remain in the wake of the morning storms, but clouds and an inversion could prevent most of the area from developing thunderstorm activity until late in the afternoon, when isolated storms may develop in Central Wisconsin and southern and east-central Minnesota where the inversion “capping” convection is expected to clear first. At the surface, a warm frontal boundary will stall over the Northern…

Fathers from Raleigh to Portland rejoice. A fully pleasant weekend is finally in the works after up to eight straight weekends of rain, cool temperatures, or both. High pressure at the surface will emerge from Ontario Friday and slide southeast through Saturday before parking itself off the coast of Virginia. Its presence over the Northeast and along the coast will keep most of the region dry through Sunday. Further, winds will change direction from the northwest to the southwest as the high makes its way to the coast, directing warm air towards the Northeast. Each day through Monday will be warmer than the last, with temperatures becoming unseasonably warm by Sunday. This initial surface high pressure is associated with the last of a series of upper-level low pressure systems that have brought consistently below-average temperatures to the Northeast. This is also the same high pressure system that tailed the cold…

The presence ofย  dissipating Tropical Storm Bud and a strong southerly wind over the southwestern US will lead to an unusually early North American Monsoon for the Southwest. With the recent drought, scorching heat and widespread wild fires, the timing could not be better. Tropical Storm Bud continues to weaken as it slowly travels northeastward toward the southern Baja Peninusla. Cool water, strong wind shear, and rugged terrain are forecast to take a toll on the tropical cyclone. By late tonight Bud will weaken to a Tropical Depression upon making landfall near the southern tip of the Baja Peninsula. The depression will spend roughly 12 hours over high terrain Friday before emerging in the Gulf of California, spreading rain northward toward the United States as it approaches Mexico.ย  Its propagating speed will gradually increase as mutually constructive flows of a trough over the US West Coast and a ridge over…