Tag Archives: low pressure

NYC Weather Update – Oct 23, 2017

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The warm spell we’ve enjoyed over the last week and longer will finally come to a close mid-week this week. Before that, we will receive a round of much needed moderate to heavy rain in conjunction with the approach and passage of a frontal system. Behind this front, as winds shift to the northwest, temperatures will cool into a more seasonable range for this time of year.

Rest of today – mild, partly sunny with clouds increasing, high temperatures in the low-70s.

Tuesday – we’ll still be in the warm sector ahead of an advancing cold front. Temperatures remain mild in the low-70s, however, we should expect several rounds of moderate to heavy rain during the day. As the pressure gradient increases with proximity to an advancing cold front, stiff south winds in the 20 mph range with stronger gusts could occur. Rain continues and increases in intensity overnight. Windy conditions continue. Thunderstorms are possible with some of the strongest lift and convection close to the cold front. We could pick up 2-3 inches in places by the end of this event, as this long period of southerly winds will have ushered in a tropical airmass rich with moisture.

Wednesday – the cold front doesn’t actually push through until late Wednesday. Lingering showers could occur in the morning prior to the frontal passage. High temperatures should still be fairly mild, near 70°F.

Thursday – winds will shift to the north and west following the passage of this vigorous cold front. Behind the front, temperatuers will be about 10°F cooler, resulting in high temperatures topping out in the low-60s with mostly sunny skies.

 

NYC Weather Update – Oct 9, 2017

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After a span of several weeks with minimal rainfall, we’re running into a week that will be defined by two low pressure systems and unsettled, rainy weather. Temperature will finally cool off from the summer-like warmth we’ve recently enjoyed to more seasonable, fall temperatures.

Rest of today – cloudy, periods of rain, some heavy at times. High temperatures in the mid-upper 70s. Breezy with winds 15-20 mph. Remnants of Nate are passing through the area today, bringing tropical moisture and rain along with a deepening pressure gradient and the windy conditions.

Tuesday – best day of the first half of this week, mostly sunny with temperatures in the low-80s in the wake of the storm system passing today.

Wednesday – a backdoor cold front pushes through overnight into Wednesday. Winds will shift to the easterly direction and onshore with high pressure to the north. The result will be much cooler temperatures in the upper-60s or just about 70°F, which is about normal for this time of year. There will also be a chance for rain and increasingly cloudy skies.

Thursday – similar feel to Wednesday with clouds, chances for rain, easterly winds, but cooler with temperatures in the mid-60s.

NYC Weekend Weather – Sep 28, 2017

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This weekend kicks off a stretch of cooler, drier, true-to-form autumn weather after last week’s decidedly summer-like days. A low pressure center over the Great Lakes will slide southeast towards the region to start the weekend. This could scattered showers and thunderstorms. Aside from that, conditions will be dry and fair for the remainder of the forecast period.

Rest of today – high temperatures right about 70°F with sunny skies, much drier feel to the day.

Saturday – scattered showers and thunderstorms possible, especially early. High temperatures in the upper-60s, cooler in spots that see rain.

Sunday – sunny, high temperatures again around 70°F. High pressure from Canada behind the low pressure above will keep things dry and cool for much of the next week.

Monday – slightly warmer, high temperatures in the low-70s, again mostly sunny.

NYC Weather Update – Aug 7, 2017

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A pleasant Sunday gives way to a wet and cool start to the week. High pressure builds in as Monday’s storm system moves out of the area. The rest of the week, we’ll see below average temperatures, but mostly sunny conditions along with a more comfortable, drier airmass. This will be my last update for a couple of weeks as I’ll be traveling to Europe – I’ll miss out on the solar eclipse happening on August 21st, which I’ll give some details on in this post.

Rest of today – a low pressure center tracking near or over Long Island during the day today will bring multiple rounds of rain, which at times could be heavy. Conditions will deteriorate during the morning, and rains should pick up in the afternoon. A brief pause may occur before another round of heavy rain during the evening and overnight hours. A flash flood watch is in effect due to the possibility of upwards of 2″ of rain falling perhaps in short intervals. Temperatures will be cool with southeast winds off the ocean and clouds keeping things only in the low-mid 70s.

Tuesday – as this storm system pulls away, winds shift to the northwest and high pressure begins to build in. Tuesday should see partly sunny skies clearing up and high temperatures around 80°F.

Wednesday – nice crisp day on tap with high temperatures around 80°F again and lots of sun as high pressure remains in control.

Thursday – a notch warmer with high temperatures in the low-80s and mostly sunny skies.

 

Total Solar Eclipse of August 21st, 2017

This much anticipated astronomical event is approaching in 2 weeks time. The last total solar eclipse that would have been highly visible from a large portion of the continental United States dates back to March 7, 1970. This greatest magnitude of this eclipse traveled nearly directly over all the major cities of the Eastern Seaboard.

Path of the total solar eclipse of March 7, 1970

Unfortunately, this time around, we won’t be quite as lucky in New York City, but we’re still expecting around a .75 magnitude total solar eclipse peaking around 2:45PM on August 21st.  Regardless, it will be an impressive sight to behold as 3/4 of the sun will be blocked out by the moon transiting directly in front of it from our viewpoint. Even with cloudy skies, you should still notice an appreciable change in lighting during this eclipse event. Hope it stays sunny though!

NYC Weekend Weather – Jul 28, 2017

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After a couple days of average temperatures, this weekend sees a return to cool temperatures with a wet start to it all. Conditions improve Sunday, and high pressure builds but temperatures remain below normal until later next week.

Rest of today – increasing clouds as a coastal low begins to form off the Mid-Atlantic. Warm with high temperatures right around normal in the low-mid 80s. Rain should hold off until the overnight hours.

High resolution rapid refresh model runs don’t show significant rainfall until around 2AM EDT Saturday

Saturday – an unpleasant, raw, windy, rainy day more reminiscent of autumn or spring than late July. As the coastal low moves closer to us along a stalled frontal boundary, it will bring chances for moderate to heavy rain along with a stiff northeast wind around 25 mph. As a result, temperatures will be surpressed in the mid-70s. Rain chances taper off during the day as the low moves east.

Sunday – much nicer with plenty of sun and temperatures rebounding to around 80°F. Still will have a cooling influence of the weakening northeast winds.

Monday – high pressure builds and yields another decent day with high temperatures around 80°F, possibly higher with more sun.

NYC Weekend Weather – Jun 9, 2017

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Got retrained as a SKYWARN spotter last night – this weekend should be tranquil though. A steady warming trend begins this weekend and lasts through mid-week next week. After a prolonged period of cool and unsettled weather, we could see the second heatwave of the season. Great weekend for a getaway to the beach!

Rest of today – mostly sunny, temperatures in the upper-70s to around 80º. Some residual instability in the wake of a low pressure center exiting the Northeast may touch off a couple isolated showers or thunderstorms.

Saturday – the warmup continues with temperatures climbing into the low-80s. Isolated showers and thunderstorms are possible again in the afternoon hours with the passage of an upper level disturbance.

Sunday – the heat arrives in earnest as a Bermuda high sets up and begins to strengthen. This will begin pumping in warmer and more humid air from the south and southwest. Temperatures are expected to climb into the low-90s in the city with sunny skies, with cooler temperatures due to the sea breeze on south-facing shores in the mid-80s. Great beach day, and ideal conditions for the annual Puerto Rican Day Parade.

Monday – the heat continues with temperatures again in the low-90s with some spots in the mid-90s and sunny skies. There could be a heat advisory up at some point.

NYC Weather Update – Jun 5, 2017

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The beginning of June sure won’t feel like summer with an extended period of unsettled weather through midweek due to the influence of a very slow moving set of low pressure centers. However, forecast models are trending towards a warm up towards the end of the week and going into the weekend.

Rest of today – mostly cloudy with high temperatures approaching 70ºF. Periods of rain possible later in the day along with a couple thunderstorms.

Tuesday – periods of showers likely throughout the day with temperatures much cooler in the mid-50s due to the influence of an onshore, northeasterly wind.

Wednesday – mostly cloudy again, with rain chances gradually diminishing. Cool, with temperatures in the low-60s.

Thursday – finally get a shift in winds away form the northeast. Partly sunny, and warmer with high temperatures near 70ºF.

 

Warmup Ahead

Climate Prediction Center forecasts for 6-10 days out show a pronounced warm up occurring over the Eastern US as high pressure starts to setup over the western Atlantic. This weekend should feature temperatures closer to normal in the upper-70s and low-80s.

 

NYC Weekend Weather – Jun 2, 2017

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This weekend will feature mostly sunny skies, seasonable, and pleasant conditions until late in the day Sunday when our next chance for rain moves in. The low pressure causing this next round of rain looks to linger well into mid-week next week, which will bring on several days of cool, cloudy, and rainy weather to contrast with the beginning of the weekend.

Rest of today – mostly sunny with some slight chance for scattered thunderstorms, most likely appearing west of NYC. High temperatures ranging in the mid-upper 70s.

Saturday – mild, pleasant, mostly sunny with high temperatures in the mid-70s. High pressure will be in control for a day.

Sunday – high pressure starts breaking down as the next storm system approaches. This storm system will be a complex and slow moving one. While the bulk of the moisture associated with this storm looks to stay offshore, we will still get multiple rounds of rain from it, beginning late Sunday. Temperatures will be a touch cooler in the low-70s with increasing clouds Sunday.

Monday – cloudy with temperatures in the low-70s, and periods of rain likely throughout the day. Kicks off a cooler and wetter than normal trend leading at least into mid-week.

NYC Weather Update – May 22, 2017

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Quite a contrast in temperatures this week with an active weather pattern that holds chances for precipitation nearly every day of the week. Temperatures will generally range a few degrees below normal. Looking ahead to Memorial Day weekend, weather could be a mixed bag with some rain chances for Sunday and Monday.

Rest of today – cool, cloudy, with steadier rains moving through the afternoon hours into the early evening accompanying the passage of a cold front. High temperatures around 60ºF.

Tuesday – drier with only a slight chance of showers late in the day as another weak disturbance moves by south of region. High temperature around 70ºF and mostly cloudy skies.

Wednesday – scattered showers possible throughout the day. High temperatures again near 70ºF.

Thursday – a warm front and an accompanying low pressure system pass over the area Thursday bringing another chance for widespread rain. Temperatures in the upper-60s under mostly cloudy skies.

 

 

NYC Weekend Weather – May 4, 2017

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This weekend brings a drastic change in temperature from the last, with high temperatures fully 20°F cooler. Not only that, but a slow moving upper low pressure system will induce multiple rounds of rain resulting in an extended period of unsettled weather for the area. The most substantial rain occurs Friday. Temperatures remain 5-8°F below normal during this stretch which continues into next week.

Rest of today – enjoy the bright sun shine while it lasts. With high pressure still in control, expect mostly sunny skies and a high temperature in the low-60s.

Friday – the same storm system that has been impacting the mid-Mississippi Valley with flooding rains starts to move into our region Friday. Steady rains and embedded thunderstorms throughout the day could bring a total of 1-2″ of rainfall totals. The band of heaviest rains appears likely to cross into the city around 11AM. Temperatures will be about the same as today, in the low-60s, under mostly cloudy skies.

Saturday – unfortunately, due to the slow moving nature of the low pressure system responsible for the rain Friday, there remains a lingering chance for rain Saturday, particular late in the day and into the evening. Temperatures remain cool in the low-60s.

Sunday – improving conditions, with rain chances finally diminishing. There could be some breaks for sun, with high temperatures hovering at just about 60°F.

 

Drought Almost Totally Gone, Cooler Temperatures Prevail

With all of the plentiful spring rains, only a very small slice of the Hudson Valley remains under abnormally dry conditions. Meanwhile, Climate Prediction Center points to cooler conditions continuing into the next 6-10 days.