![]() It will remain very warm to the south, with temperatures in the mid-70s to mid-80s across Southeast U.S. Freezing weather will continue spreading east into Dakotas and Upper Midwest through Thursday and Friday. In the wake of the winter storm Olive, much colder Arctic air is expected to plunge into southern Canada, gradually expanding into the northwestern U.S. Heavy snow combines with northeast wind gusts of 30 to 50 mph, leading to significant drifting snow and whiteout conditions in open areas. With the worst conditions from Wednesday evening through Thursday. Some locations can expect to see at least a foot of snow by the time Olive ends Thursday night. Significant travel impacts are expected across the region. This warmth clashes with the plunging Arctic air, leading to a violent winter storm. ![]() The jet stream that digs far south around the upper deep core on the West will push very warm air mass from the subtropical region into the Southeast and East Coast, resulting in record-breaking warmth at the end of February. ![]() Thus, potentially introducing stronger winter storms, heavier snow, and, as we see, also ice storms and blizzards that span across a large portion of the nation. ![]() This brings huge temperature gradients across the continent, meaning temperature and pressure differences are large. A large pool or Arctic air mass plunges southward from the Polar region into the central parts of North America, across Canada into the United States. The overlapping of a very warm mid-level airmass from the south with cold near-surface conditions over the Upper Midwest and the western Lakes will lead to heavy snow and a major ice storm.Īs mentioned, the main reason the major winter storm Olive is so widespread is the collapse of the Polar Vortex aloft. This happens in response to the surface low forming along the sharp Arctic front. The collapsed Polar Vortex aloft has changed the pattern across the continent, sending a powerful Arctic Blast from Canada into the northwestern U.S.Īhead of it, the record warmth across the Southeast U.S. The significant weather impact forecast through mid-week is due to the amplified pattern across North America. Areas are expected to be upgraded as the storm unfolds late Tuesday into Wednesday and Thursday. Portions of the northern U.S., from the Rockies to the Upper Midwest, are already under the effect of winter storm watches and warnings ahead of the incoming Winter Storm Olive. This hints at a high risk of the ice storm from central Iowa to northern Illinois and southern Michigan late Wednesday into Thursday morning.ĭespite weather models still having some uncertainties regarding the exact swath of freezing rain, large cities like Chicago and Detroit could also be in their path. Travels will be difficult to impossible in places due to snow drifts and blowing snow.Ī concerning feature is a very sharp temperature gradient along the Arctic front, with a significant warm air mass aloft battling with the major cold near the surface. Areas from South Dakota across southern Minnesota to Wisconsin could see considerably big snowstorms and blizzards. A Winter Storm Olive will develop along the Arctic cold front, forecast to blanket the Midwest and part of the Great Lakes region with deep snow and a major ice storm.Ī swath of heavy and deep snow will develop from the Northern Rockies across the Dakotas to Upper Midwest, extending into the Great Lakes and southern Ontario, Canada. As an effect of the Polar Vortex collapse earlier this month, a significant Arctic Blast will spread from Canada into the northern United States this week. ![]() February is also known as the month with the most winter storms across the country. So far, February 2023 has been one of the warmest on record, and well-above-warm weather across a large part of the Midwest and Northeast U.S. ![]()
0 Comments
Leave a Reply. |