1st 90-degree heat in sight for parts of mid-Atlantic, Ohio Valley as cool air fights on to the north
By Alex Sosnowski, AccuWeather senior meteorologist
May 17, 2019, 1:49:38 AM EDT
As warmth builds in the Midwest at a price of severe weather, there is some better news in the temperature department for people in the Northeast although episodes of clouds and showers will intervene into next week.
While an atmospheric roadblock and its associated buckle in the jet stream will remain, the pattern will shift eastward enough to allow less cold air to drain southward into the Northeast.
"We still expect pushes of cool air from the north and the Atlantic Ocean over the next couple of weeks," according to AccuWeather Lead Long Range Meteorologist Paul Pastelok.
"However, in most cases, the air attributed to it will not be as cold as what has been recently experienced."
Afternoon temperatures hovered in the 40s, 50s and 60s F early this week over a large swath of the Northeast even as rain tapered off.
Earlier in the week, a winterlike pattern brought unusually low temperatures, some of which broke records, and even some snow.
From this weekend through next week, on average, highs will range from the upper 50s to the lower 70s across New England and from near 70 to near 90 over the mid-Atlantic region.
Richmond, Virginia, will be among other Virginia locations that may record their first 90-degree readings of the season. Highs in parts of Ohio, Indiana and Illinois may also reach 90 for the first time this year.
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For much of New England, upstate New York, the central and northern Great Lakes and even a large part of the mid-Atlantic coast, a battle zone is likely to set up.
Warmer air from the Midwest and the South will occasionally move in to this swath, only to be pushed back before too long as cool air from the north and east fights back.
The back-and-forth temperature pattern will have some consequences.
"It seems that while the pattern is looking less chilly, some areas of the Great Lakes and Northeast will pay the price with perhaps more clouds and rain at times," according to AccuWeather Senior Meteorologist Kristina Pydynowski.
While it will not rain every day everywhere in this swath, there may be at least a shower every two out of the three days and a soaking rain can fall for part of the day perhaps one out of every three days in some locations.
In areas where clouds remain the entire day, the air may stay chilly by mid-May standards. However, even an hour or two of partial sunshine this time of the year can boost temperatures by 10 degrees or more.
Some of the best weather in the nation in terms of warmth and sunshine will be across the Southeastern states with an extension into the southern part of the mid-Atlantic and the Ohio Valley at times.
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