Tag Archives: thunderstorms

NYC Weekend Weather – Jun 3, 2016

Last weekend featured weather more typical of late-July for the region. This weekend, temperatures will be much cooler, and we may see some heavy rain and possibly even a marginally severe thunderstorm Sunday. Next week, temperatures remain in the below to near-normal range as we feel the impacts of a lingering low pressure over Eastern Canada.

Rest of today – cloudy, with high temperatures in the mid-70s. Areas of rain will continue pushing through the area until around 3PM this afternoon.

Saturday – the nicer of the weekend days, partly sunny with high temperatures in the low-80s. Some chance for scattered showers and thunderstorms especially north and west of the city.

Sunday – a warm front pushes through early, putting us in the warm sector prior to the approach of a cold front associated with a low pressure center over Quebec. This set up could support the development of marginally severe thunderstorms, and the training of multiple storm cells could also lead to some minor flooding. Temperatures will be in the mid-70s. Rain tapers off overnight.

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Storm Prediction Center has put portions of the region under a slight chance for severe weather Sunday.

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Monday – weather calms down again and temperatures go back up to around 80ºF as clouds clear up.

Tuesday – mostly sunny with a high again near 80ºF.

NYC Memorial Day Weekend Weather – May 27, 2016

It’s been a week of hot, summer-like temperatures in the city, and this will continue into the Memorial Day weekend as the official kickoff of the summer season gets underway. It’s going to be an excellent weekend for hitting the beach as a pleasant, cooling sea breeze will be present. Memorial Day itself looks increasingly like a rainy day, with precipitation enhanced by an influx of tropical moisture from what could very shortly become the second named tropical storm (Bonnie) of the 2016 Atlantic Hurricane Season.

Rest of today – warm and humid with high temperatures in the upper-80s to near 90ºF. Cloud cover increases this afternoon, and scattered thunderstorms are possible along a sea breeze front, mostly confined to upper elevations in the Lower Hudson Valley.

Saturday – sunny, hot and humid again with high temperatures around 90ºF – a persistent Bermuda High will be the driver of these hot temperatures.

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Sunday – another very warm day with high temperatures in the mid-upper 80s. A backdoor cold front is expected to near the area, but not push through and this frontal boundary could serve as a trigger for thunderstorms, but these will be limited to areas north of the city.

Monday (Memorial Day) – significantly cooler, mostly cloudy, with periods of rain likely as a cold front approaches slowly from the west. High temperatures in the mid-70s. Rainfall may be enhanced by tropical moisture associated with what will likely become Tropical Storm Bonnie.

Tropical Storm Bonnie

An area of showers associated with a low pressure center off the coast of Florida has been steadily becoming better organized over the last couple days. The National Hurricane Center is giving this disturbance a 90% chance of becoming Tropical Storm Bonnie. Though there won’t be a direct impact on this region, the moisture from this storm could drive heavy rain on Monday.

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Satellite imagery of the low pressure area that is likely to become TS Bonnie

A Hot Summer Coming?

The Climate Prediction Center continues to call for a hot summer for almost the entirety of the United States in its latest 3 month temperature outlook.

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NYC Weekend Weather – May 14, 2016

We have a stretch of decent weather ahead of us going into the early part of next week despite some rain. Rain comes this evening, and is possible Sunday. Windy conditions prevail Monday.

Rest of today – high temperature will be mild in the low-mid 70s with winds from the south. Later this evening, around 6PM, we should see a line of showers with some moderate or strong thunderstorms possible ahead of a cold front passing through. This batch of rain should push through by 9PM.

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Sunday – will be about 10ºF cooler with breezy west winds under mostly sunny skies. Clouds build in the afternoon with a slight chance for rain in the evening.

Monday – breezy west winds continue with a pressure gradient between a low pressure center over eastern Canada and high pressure to the south. Sunny, with high temperatures in the low-60s.

Tuesday – a few degrees warmer with highs in the mid-upper 60s, partly-mostly skies, and less wind.

 

NYC Weather Update – Apr 26, 2016

There is a potential for strong to severe thunderstorms today, especially for areas south and west of the city today. Stormy weather gives way to calmer, cooler conditions Wednesday before another round of rain moves in late Thursday. Cooler temperatures prevail in the short to medium term.

Rest of today – the Storm Prediction Center has placed portions of the region under a marginal to slight risk of severe weather today. These areas are largely confined to those south and west of the city. A frontal boundary is draped from west to east across the area, such that portions to the east will be in colder air north of the frontal boundary, while those areas to the west will be in a warmer area south of it. Any strong to severe thunderstorms will be confined to areas that see the warmest temperatures today, where the spread in high temperatures could be over 25ºF from eastern Long Island to Central New Jersey.

In the city, expect high temperatures in the upper-60s to low-70s with a potential for thunderstorms, some possibly with damaging winds and small hail. These storms will be coming in two rounds, one around 11AM this morning (radar returns are already showing this batch of weaker showers), and the second, stronger batch coming around 3PM. Screen Shot 2016-04-26 at 10.19.47 AM Screen Shot 2016-04-26 at 10.20.01 AM

Wednesday – temperatures cool off considerably in the wake of these storms. High temperatures will be around 60ºF tomorrow with sunny skies.

Thursday – another cool day with high temperatures in the upper-50s and increasing clouds along with an increasing chance of rain during the day into the overnight hours.

Friday – high temperatures in the upper-50s to around 60ºF with partly sunny skies.

Below Normal Temperature Trend to Continue – Rain Needed

An upcoming series of storm systems moving over the region will lead to colder air being pulled in behind them. This will result in below normal temperatures for this time of year throughout much of the next two weeks.

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Due to a long stretch of dry weather, many portions of the NYC region have fallen behind normal precipitation levels for this period of the year by considerable margins. Hopefully, the rounds of rain we are forecast to receive coming up will help to prevent drought conditions from redeveloping in the area before this growing season starts in earnest.

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NYC Weekend Weather – Apr 7, 2016

Wet, but much warmer weather today gives way to another blast of cold air this weekend. Light accumulating snow (1-3″) will be a real possibility Saturday and Saturday night before temperatures moderate back closer to season averages for this time of year to start next week.

Rest of today – cloudy, with gusty winds up to 40-50mph from the south and southwest. High temperature in the low-60s. Periods of rain with some thunderstorms possible this afternoon. The first batch of this rain will come in a line around 1PM this afternoon, with a second round of rain hitting later this evening at around 9PM.

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Friday – temperatures cool off into the mid-50s with a very small chance for lingering showers and mostly cloudy skies. Overnight lows will drop into the mid-30s.

Saturday – a reinforcing arctic front will sweep through during the day on Saturday, such that high temperatures will peak early in the upper-30s before dropping into the low-30s into the 20s overnight. Precipitation will start off as snow at the coast, transition to rain for a period during the afternoon, but then turn back to snow late in the day. When it all settles, we could have 1-2″ of snow on the ground here in the city.

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Sunday – skies clear out with high pressure taking control after the storm passes on Saturday, but temperatures will be cold, only the mid-40s.

Monday – an advancing storm system from the west will shift winds to the south and allow for temperatures to rise back to seasonal averages in the mid-50s.

NYC Weather Update – Apr 4, 2016

I thought we had seen the last of the snow this spring, but winter stubbornly will not give up. This week, we’ll see the coldest weather we’ve encountered since the depths of winter, with low temperatures dropping into the upper-20s in the city and even teens for outlying areas. A brief warm up occurs this Thursday before the cold returns again.

Rest of today – windy with periods of rain in the city. High temperatures will likely top off in the upper-40s to near 50ºF. Temperatures plummet into the upper-20s following the passage of the cold front that’s responsible for this round of precipitation.

Tuesday – clear skies will belie the much below normal high temperatures for the day which will be only around 40ºF. A freeze warning is in effect for most of the coastal regions in the Tri-State area given the overnight lows that will be substantially below freezing.

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Wednesday – the high pressure pictured above will be in firm control Tuesday and overnight into Wednesday. A cloudless sky overnight will make for ideal conditions for radiational cooling, resulting in low temperatures again in the mid-20s. High temperatures will be warmer in the mid-40s with increasing clouds ahead of the next storm system.

Thursday – a surge of warmer air will accompany the next storm system to impact the area Thursday. This storm system will bring widespread rain and even some thunderstorms late in the day Thursday. High temperatures should reach well into the upper-50s and near 60ºF.

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Friday – following the passage of the storm on Thursday, temperatures cool off again into the upper-40s under mostly cloudy skies.

NYC Weekend Weather – Mar 25, 2016

Easter weekend will be bookended by wet weather, but the weekend days themselves should be dry with temperatures around average for this time of year.

Rest of today – an earlier round of showers passed through earlier this morning. Another round of showers and scattered thunderstorms will pass through the region along with a cold front in the afternoon hours. It appears that there will be a good chance for rain between the hours of 12PM-6PM, after which skies should gradually clear.

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Saturday – a cooler airmass will take over following the cold front today, so temperatures to start on Saturday will only be around 40ºF. Under mostly sunny skies, the high temperature should still hit normal levels in the low-50s.

Sunday (Easter) – clouds will be on increase for Easter, though no rain is expected. High temperatures will range in the mid-50s.

Monday – our next shot at rain arrives Monday with a warm front and a low pressure system moving up the eastern seaboard. Temperatures will be a bit warmer, in the upper-50s.

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NYC Weather Update – Mar 21, 2016

February 2016 resolutely smashed previous records for the largest deviation above normal temperatures for any given month (which was previously set in January 2016). Thus far, March has yielded temperatures more typical of late-May, and also two instances of late season accumulating snows. This week, the weather warms up again, and there’s certainly no snow on deck.

Rest of today – clouds have largely cleared out with the passage of last night’s coastal storm that left behind some marginal accumulations across the region, the highest totals occurring quite a ways east of the city, but capped at only about 3″. There will be no trace of the snow by this afternoon as temperatures warm into the upper-40s.

Tuesday – very similar to today, with high temperatures in the upper-40s and mostly sunny skies.

Wednesday – winds turn to the southwest ahead of an advancing frontal boundary that will pass late Thursday/Friday, allowing temperatures to surge into the low-60s with increasing clouds.

Thursday – tricky temperature forecast due to the timing of approach of the aforementioned frontal boundary. If that boundary is a bit slower than current forecasts or lifts further north, we could see temperatures well into the 60s. Temperatures should be quite mild in the mid-upper 50s even outside of this scenario.

Friday – the next chance at rain and possibly a couple of thunderstorms occurs late Thursday into Friday morning with the anticipated passage of a cold front. Despite the passage of this front, temperatures will still be well above average in the upper-50s.

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NYC Weekend Weather – Mar 17, 2016

Meteorologically, March is a month of highly changeable weather that can swing from one extreme to another. Thus far this month, we’ve seen snow, and record warm temperatures near 80ºF. This week is no different, and it ends with the possibility for a significant coastal storm that could bring accumulating snow to the region to ring in the official start of spring!

Rest of today – warm, with partly sunny skies and high temperatures in the mid-60s. An unstable atmosphere looks primed to spawn a few scattered thunderstorms. Atmospheric dynamics are supportive of strong wind gusts and possibly small hail with any storms that form this afternoon. Some of these storms could approach severe limits. Based on the latest High Resolution Rapid Refresh model output, there look to be two batches of storms, one impacting the region around 2PM, then again around 5:30PM. At the time of this post, two storm cells were moving slowly east over southern Bergen County and the western Bronx respectively.

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Friday – temperatures cool off into the low-mid 50s tomorrow, with a slight chance again for some afternoon showers, though nothing quite as significant as today.

Saturday – an area of polar high pressure will move over southeastern Canada, setting the stage for the winter storm Sunday. Saturday, however, will be a pleasant, sunny day, but temperatures will be below average in the low-mid 40s.

Sunday – all eyes turn to a developing coastal storm/Nor’easter. Forecast models are having a rough time handling this storm, with wide variances noted among some of the models from day to day. Given the uncertainty at this time, only a couple days before the expected onset of the storm, it is difficult to guess at the snowfall accumulations from this storm. One thing that is well understood at this point is that temperature profiles will support a primarily snow event, with some rain mixing in at the coast. High temperatures Sunday will struggle to hit 40ºF. Snow should begin in the morning, mixing with rain in the afternoon Sunday afternoon before transitioning again to all snow overnight. A slight variation in the forecast storm track either west or east could result in dramatically different snowfall totals – more updates to come.

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Monday – temperatures rebound back into the mid-40s under partly sunny skies following the passage of this late season snow storm.

 

 

NYC Weather Update – Feb 02, 2016

The calendar says it’s February, but you’d be forgiven for thinking otherwise with temperatures soaring well into the upper 50s this afternoon. The warm trend continues through the middle of this week, when a potent storm system that will be bringing blizzard conditions to some parts of the Midwest (including Iowa, where caucus turnouts may be adversely impacted) passes through the area. Looking ahead, a cool down is on the way, as is the potential for another coastal storm on the day after the Super Bowl. At this time, thermal profiles are not looking conducive for snow, but as we all saw from the last storm, things could very well change as this storm system evolves.

Rest of today – quite warm, with high temperatures well in the upper 50s under mostly cloudy skies. Periods of light rain look to persist as a cold front makes its way across the area this evening, though it appears most of the precipitation should end by 7PM this evening.

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High Resolution Rapid Refresh model output for 7PM EST

Tuesday – with the cold front passing through tonight, temperatures will moderate tomorrow, dropping into the upper 40s under mostly clear skies.

Wednesday – a complex and potent storm system that will be impacting the Midwest the next couple days will make its way into the region Wednesday. A warm front will pass over our area prior to the passage of a cold front. As we enter the warm sector between these two frontal boundaries, we’ll see a surge of warm air and moisture from the south. This may even lead to a couple isolated rumbles of thunder during the afternoon. Otherwise, expect mostly cloudy skies with showers throughout the afternoon into the evening hours. High temperatures will be quite warm, again approaching 60ºF – and possibly surpassing this mark.

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Thursday – just like tomorrow, once the cold front above pushes through the area, temperatures will again cool off back into the upper 40s (which is still about 10ºF above normal), and skies will clear.