Monthly Archives: September 2020

NYC Weather Update – Sept 29, 2020

Apologies for the lack of updates lately. Have had a few things going on keeping me busy. We have a wet beginning to October on the way with tropical moisture accompanying a slow moving cold front. Heavy rain is possible overnight Tuesday, with isolated flash flooding a concern. Temperatures should be around normal (low-70s) until this weekend when a reinforcing cold front brings us down into the mid-60s.

Rest of today – cloudy with chances for rain increasing later in the day as a cold front approaches from the west. High temperatures in the mid-70s. This latter frontal boundary may also spark some showers overnight, with temperatures dropping into the mid-60s. A strong low level jet will be in place overnight, enabling efficient transport of tropical moisture from the south. This will lead to the potential for rounds of moderate to heavy rain, where some training is possible as well. Flash flooding is a concern as places could see 1-2″ of total rainfall overnight. Winds could also be gusty in some of the heavier downpours, which could also produce some thunder. Temperatures generally in the mid-60s.

Wednesday – conditions should improve during the day with showers diminishing in the morning. Mostly cloudy with highs in the low-70s. Subsidence (sinking air) with westerly winds could produce gusty winds. Overnight lows in the upper-50s with mostly clear skies.

Thursday partly sunny with highs in the low-70s. Overnight lows in the mid-50s.

Friday partly sunny with highs in the mid-60s. Chance for rain with another cold front forecast to move through. Overnight lows in the low-50s as temperatures start to cool off behind this frontal passage.

Looking ahead, behind this cold front, a period of below normal temperatures is forecast to hit much of the Eastern US next week.

NYC Labor Day Weekend Weather – Sept 4, 2020

You couldn’t wish for better weather this Labor Day Weekend! A dry cold front will pass through today, and high pressure will build in behind it, remaining in control of our sensible weather throughout the remainder of the long weekend. The result will be mostly sunny skies with temperatures in the low-80s and comfortable humidity, ideal for basically any outdoor plans you have.

Rest of today – the warmest day of this period with high temperatures in the mid-80s and sunny skies prior to the arrival of a cold front. This frontal passage will be moisture starved, so we’re not anticipating any rain with it. There may be some more clouds later on in the day as a result, though. Overnight lows in the mid-60s with mostly clear skies.

Weather Prediction Center surface forecast for 8PM Saturday. A dry cold front is anticipated to move through later today and through Saturday. This will clear the way for a weekend of remarkably good weather.

Saturday – with the cold front past us, we’ll see cooler temperatures in the upper-70s to around 80ºF under sunny skies. Overnight lows in the mid-60s with mostly clear skies again.

Sunday – yet another gorgeous day with high temperatures in the low-80s and sunny skies. Overnight lows in the upper-60s with mostly clear skies.

GFS model of surface pressure and 10 meter above ground level winds. High pressure is forecast to remain over our region through the weekend.

Monday (Labor Day) – high temperatures around 80ºF again with sunny skies. Overnight lows in the upper-60s under clear skies.