Colder Archives - Page 3 of 4 - New York Metro Weather

PM Update: First frost, freezes likely tonight

October 23, 2013/1 Comment/by John Homenuk

A chilly new airmass will push into the area this evening behind a coastal storm system, which is currently scooting east and northeast of our area. A few showers moved along the coasts of New Jersey and New York this morning and afternoon, but are expected to move northeastward and stream into Southern New England tonight. As the system shifts northeast, stiff west-northwesterly winds behind it will usher in a cold airmass with 850mb temperatures falling from around 2 C this afternoon to anywhere between -4 and -6 C by Thursday.

The National Weather Service has issued Freeze Warnings from 2:00-9:00am Thursday in Sussex Co (NJ) and Frost Advisories for Somerset, Morris, Hunterdon, Passaic, Bergen (NJ) Rockland, Putnam (NY) and Fairfield, New Haven (CT). Temperatures are expected to remain a few degrees warmer in the city, falling to the lower 40’s. The growing season may end tonight in many interior areas — and will have another chance to do so Thursday Night into Friday, where low temperatures are expected to be even a few degrees colder.

NAM model forecasting low temperatures in the upper 20’s to lower 30’s in the interior Wednesday Night into Thursday morning.

Update: Freeze possible in area suburbs this week

October 22, 2013/0 Comments/by John Homenuk

Wednesday AM Update: A weak coastal storm passing offshore, on a frontal boundary which crossed the area last night, is helping to develop some showers along the coast of New Jersey and along the shores of Long Island. The system will move quickly seaward today, owing to a fast and progressive pattern aloft. Temperatures this morning, away from the coast, fell into the 30s and 40s. Highs will reach only the mid 50s.

It is once the storm system passes, that west-northwesterly winds will begin in earnest — and they will usher in the coldest air of the year to date. Low temperatures on Wednesday Night into Thursday morning may fall into the lower 30s across the interior and 40s even in the city and urban areas. This would likely suffice for the first freeze of the year for many interior locations. But more notably in terms of sensible weather, high temperatures will only reach the mid 50s each day later this week, with a blustery wind expected. It will certainly feel more like autumn than it has at any point so far this year.

The NWS has issued a Freeze Warning for Sussex County in NW NJ from 2:00 to 9:00am Thursday morning. Frost Advisories also in effect for Somerset, Morris, Hunterdon, Passaic, Bergen (NJ) Rockland, Putnam (NY) and Fairfield, New Haven (CT).

NAM model showing cold temperatures at 850mb moving into much of the Northern and Eastern US by Thursday.

Forecast: Cold air intrudes this week

October 22, 2013/0 Comments/by John Homenuk

The Northern Hemispheric pattern change, which we discussed last week, will finally come to fruition in terms of sensible weather in our area late this week. Several rounds of cold fronts have helped us “step down” into a much colder pattern, with arctic air intruding the Northern 1/3 of the United States during the middle to latter part of this upcoming week. The cold air will peak over the Northeast US late this week and into the weekend, as a mid level ridge on the West Coast of the US flexes its muscles, and multiple disturbances slide southeast into a large trough over the Eastern 1/3 of the US, reinforcing the cold air.

A weak coastal storm system is forecast to slide off the coast of the Mid-Atlantic states on Wednesday, but forecast models are not impressed with the strength or potential precipitation from the system. Owing to the suddenly fast and progressive nature of the pattern, the storm is expected to slide east/northeast quickly off the coast, after a cold front passes the area. Behind the system, stiff west-northwesterly winds will push in the cold air. Overnight and morning low temperatures on both Thursday and Friday mornings will be the coldest of the season to date.

NAM model forecasting morning low temperatures in the 30’s and 40’s on Thursday morning. Friday morning may be several degrees colder.

Forecast: Chilly start, becoming pleasant

October 21, 2013/0 Comments/by John Homenuk

The coldest night of the season to date occurred from Sunday Night into Monday morning throughout most of the area suburbs. The pine barrens of Long Island, many interior areas of New Jersey, and the suburbs of New York and Connecticut fell into the 30’s with clear skies, light winds and a cool airmass settled into the area. The city and urban locations, however, struggled to fall — with Central Park already observing a temperature in the lower 50s as early as 730am on Monday.

NAM showing 850mb temperatures falling between -4 and -6 C through the Northeast later this week.

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