usa Archives

UPDATE: A remarkable satellite presentation of explosive cyclogenesis over the Northwest Atlantic today

January 18, 2020January 17, 2020 by Marko Korosec

As we discussed yesterday, yet another explosive development of the extra-tropical cyclone was expected today. An upper wave ejected from eastern Canada into the Northwest … Read more

A powerful winter storm is underway across the central United States, severe freezing rain and heavy snow blizzard in some areas

January 17, 2020January 17, 2020 by Marko Korosec

Here is the update on the developing powerful winter storm over the United States today. A Lee cyclone is deepening over the High Plains, drifting … Read more

Another explosive cyclogenesis will take place over the Northwest Atlantic today, will push severe windstorm and major waves towards Greenland and Iceland over the weekend

January 17, 2020January 17, 2020 by Marko Korosec

A positive NAO pattern continues – meaning above normal activity of the Atlantic storms. An upper wave is currently ejecting southeast Canada and expected to … Read more

The weekend winter storm will bring lots of snow, blizzards and locally dangerous ice accumulation across the Midwest and Ohio Valley, United States

January 17, 2020January 15, 2020 by Marko Korosec

A potentially powerful winter storm is expected to cross the United States this weekend. A deep trough with a pronounced surface cyclone is approaching from … Read more

10-15 day forecast A strong Pacific ridge will push into the polar circle, cutting the bottom polar vortex in half, sending cold air into Eastern USA, and opening a temporary window for cooler Europe!

January 12, 2020January 11, 2020 by Andrej Flis

While the stratospheric vortex stays strong, the troposphere tries to play a game of its own, attacking the polar circle with high pressure, creating a … Read more

A powerful cyclone develops over the northeast US and brings significant blizzard into eastern Canada this weekend

December 13, 2019December 13, 2019 by Marko Korosec

While there is an extensive high-pressure system across the eastern US this week, a pattern flip brings intense cyclogenesis this weekend developing over the East … Read more

An impressive near 40 °C / 70 °F temperature contrast between the north and northeast United States on Tuesday, Dec 10th

December 9, 2019 by Marko Korosec

Here is a short update on the developing Arctic outbreak across the United States today. While extremely cold airmass spreads into the Dakotas and Great … Read more

Polar vortex cold The tropospheric core of the polar vortex will meet high pressure from the North Pacific, initiating -30°C air mass transport into the United States next week!

December 7, 2019December 4, 2019 by Andrej Flis

Polar vortex covers a large part of the Northern hemisphere. It starts on the ground, and goes all the way up high into the stratosphere, … Read more