Tag Archives: cold front

NYC Weekend Weather – May 11, 2018

NYC, Rain, Thunderstorms, Tropical/Hurricanes, Weather Update, Weekend, , , , , , , , , ,

This Mother’s Day weekend will unfortunately feature mostly unsettled and cool weather, though no day will be a complete washout. A frontal boundary will just linger in our vicinity during this period, moving north as a warm front, then retreating south as a cold front. This will allow multiple subtle upper level disturbances to move along this boundary, and each of these will bring a chance for rain.

Rest of today – splendid day with sunny skies and just about average high temperatures around 70ºF.

Saturday – chance for rain early between 7-11AM, then a period of mostly cloudy skies until another round of showers with some thunderstorms rolls through in the evening between 8-10PM. Cooler with high temperatures in the mid-60s.

Sunday (Mother’s Day) – chance for showers in the morning, with steadier rain possible through early afternoon. Cool, with northeasterly onshore winds, and high temperatures in the low-60s. Rain chances should diminish later in the day.

Monday – drying out with temperatures in the low-70s and partly sunny skies.

Possible Tropical Storm Impacting the US During Memorial Day?

Consecutive runs of the GFS forecast model continue to suggest that a subtropical/tropical storm could develop in the western Caribbean off the coast of Nicaragua in the next 10 days or so. It’s far too early to be certain of this, but the trend is worth noting. Recent runs suggest that this storm could make landfall on Florida and then travel up the east coast.

NYC Weather Update – May 7, 2018

NYC, Rain, Weather Update, , , , ,

High pressure hangs around the region most of the week and gives us pleasant, seasonable weather with high temperatures at or above average for most of the week. One chance for rain comes in the late week period with a cold front forecast to pass through the area. Otherwise, it will be a marvelous week of ideal spring weather.

Rest of today – mix of sun and clouds with high temperatures in the upper-60s.

Tuesday – mostly sunny with high temperatures in the upper-60s. This week, we benefit from cooling onshore breeze due to the synoptic set up over the Northeast. Contrast this to last week when we had very warm winds blowing from the southwest.

Wednesday – warmer with high temperatures in the mid-70s and sunny skies.

Thursday – rain chances late as a cold front approaches from the west. Otherwise mostly sunny with high temperatures in the low-70s.

NYC Weekend Weather – May 4, 2018

NYC, Rain, Severe Weather, Storms, Thunderstorms, Weather Update, Weekend, , , , , , , , , ,

After two days of record-breaking heat in the low-90s, a pattern change is on tap for the NYC metro area going into the weekend. Cooler conditions will prevail in the wake of the passage of a cold front, which could also bring rain and thunderstorms (possibly severe). Saturday should shape up nicely but rain chances return Sunday before a cooler start to the work week.

Rest of today – the Storm Prediction Center has placed portions of the region under a marginal-slight risk of severe thunderstorm activity today. We continue to be an increasingly moist warm sector east of an advancing low pressure center. As the cold front associated with this low pushes east, storms will initiate first along a pre-frontal trough during the day today (late morning-early afternoon), then again along the actual frontal boundary itself later this evening. It is the latter round of these storms that could push severe limits. There are limiting factors to this activity especially near the coast with more stable air present. Cloud cover will limit day time heating, reducing overall instability. And the earlier round of activity should serve to actually mitigate the later round of storms. Aside from the rain, it should be mostly cloudy with some breaks in the sun (that would increase chances for storms), with high temperatures in the mid-80s.


Saturday – cooler air moves in behind the cold front tonight while a weak area of high pressure builds. High temperatures should top out in the mid-70s with partly sunny conditions. Rain chances increase towards the overnight hours.

Sunday – cooler still with mostly cloudy skies and chances for rain. High temperatures only in the mid-60s as a weak disturbance passes to our south.

Monday – skies finally clear up with high temperatures moderating and warming into the upper-60s.

NYC Weather Update – Apr 16, 2018

Flooding, NYC, Rain, Storms, Thunderstorms, Weekend, , , , , , , , ,

This work week starts off with a serious soaking rain from a storm system that has impacted a wide swath of the southern US with multiple days of severe weather. Conditions improve tomorrow and Wednesday before another chance for rain on Thursday. The rain this morning has led to the issuance of flash flood warnings, and numerous reports of flooding have already come in, so take caution out there, especially if you’re out on the roads.

Rest of today – rain, heavy at times, with the threat for flash flooding and flooding possible as storms train and hit the same areas repeatedly. Some embedded thunderstorms have been occurring this morning, enhancing the heavy rainfall potential. Some areas could see rainfall rates of up to 1″/hr along with gusty winds in the 40-50 mph range. Temperatures will be rising into the upper-50s as a warm front approaches from the south.

Tuesday – improving conditions as the storm system responsible for today’s rain moves off. Cooler, with temperatures maxing out in the low-50s in the wake of a cold front and mostly cloudy skies.

Wednesday – the best day of this week with high temperatures in the mid-50s and mostly sunny skies.

Thursday – another storm system, albeit weaker, will impact the area. High temperatures should hover in the mid-50s with chances for rain and cloudy skies otherwise.

 

NYC Weekend Weather – Apr 13, 2018

NYC, Rain, Storms, Thunderstorms, Weather Update, Weekend, , , , , , , , , , , , ,

Despite it being Friday the 13th, if you were looking for some spring weather, this happens to be your lucky day. With our region in the warm sector of a large storm system far off to the south and west (which will bring severe weather to parts of the Mid-Mississippi and lower Missouri Valleys today), warm air will be surging from the south. This will give us a great start to the weekend, though things will shift dramatically by Sunday as a frontal boundary dances back and forth across the area. Wild temperature swings of 30ºF are possible with a much cooler day Sunday.

Rest of today – despite the cloud cover now, temperatures should still reach well into the mid-70s. Any breaks in the clouds would likely result in highs hitting 80ºF. There will also be a steady southerly breeze with gusts up to 20 mph.

Saturday – temperatures remain quite warm with highs again in the mid-70s. The warm front that swept north through the region last night, which brought the warm air along with it, will retreat south of the area as a backdoor cold front late during the day Saturday. Expect temperatures to drop rapidly after this backdoor cold front passes through – between 10-15ºF within as little as an hour. Increasing clouds will accompany this frontal passage.

Sunday – significantly cooler with easterly onshore winds in the wake of the backdoor cold front passage. This onshore flow off the still cold waters of the Atlantic will result in high temperatures only in the upper-40s. Periods of rain will also occur, especially later in the day with mostly cloudy skies otherwise.

Monday – the backdoor cold front will stall just south of us, then push back north as a warm front again. Temperatures will rise back towards around 60ºF prior to the arrival of a stronger cold front. This will be accompanied by steadier rain and even a couple rumbles of thunder are possible.

 

NYC Weather Update – Apr 2, 2018

NYC, Rain, Snow, Weather Update, , , , , , , ,

I had trouble typing the date in the title of this post, given that there’s snow falling as I write this! Unfortunately, this snow is not a belated April Fool’s joke. Didn’t have time to post an update about this yesterday, sorry about that! I’ll also be out this weekend for weddings. Now on to the weather: look ahead to a week of up and downs in temperatures and active weather, but no more snow. The weekend coming up… well, there could be some chance for snow again Saturday.

Rest of today – snow departs the city by the lunch hour. Around 3″ of total accumulation, mostly on untreated surfaces, before the sun breaks out and starts immediately melting the stuff. High temperatures in the low-40s with decreasing clouds.

Tuesday – rain associated with an approaching warm front. Cloudy, with temperatures in the mid-40s. Overnight temperatures actually don’t go down much before warm air surges as we enter the warm sector of this second storm of the week.

Wednesday – more rain, this time with a chance for a rumble of thunder with decent lifting associated with the cold front that’s part of this storm. Significantly warmer, cloudy, with high temperatures around 60°F.

Thursday – much cooler behind the cold front, temperatures only in the upper-40s with mostly sunny skies.

NYC Weekend Weather – Mar 30, 2018

NYC, Weather Update, Weekend, , , , , , ,

We’ll start this weekend off with slightly above average to average temperatures. A pleasant weekend of calm weather is in store, and looks to continue into the beginning of next week. Temperatures will dip a little towards mid-week with the anticipated passage of a cold front.

Rest of today – mostly cloudy with a chance for showers as a cold front passes through today. Temperatures at or above average in the upper-50s.

Saturday – a gem of a day with high temperatures in the mid-upper 50s and sunny skies with high pressure in control.

Sunday – some clouds as a early but it should still shape up to be a decent day as another cold front passes through, this time anticipated to be a dry frontal passage. A touch cooler with high temperatures in the low-50s.

Monday – cooler air rushing in behind the second cold front on Sunday will bring overnight lows only in the mid-30s. As a result, high temperatures will be well below normal Monday in the upper-40s.

NYC Weekend Weather – Feb 23, 2018

NYC, Rain, Storms, Weather Update, Weekend, , , , , , , , , ,

A wet and unsettled weekend is coming up for NYC after a week that saw record-breaking warmth and large temperature swings. Back-to-back mid-latitude cyclones with their attendant warm and cold fronts will move through the area bringing a cloudy, gloomy feel, and plenty of chances for rain.

Rest of today – multiple rounds of rain showers possible through the morning and afternoon hours ahead of a warm front advancing from the southwest. Rain chances diminishing after around 6PM this evening. Overcast otherwise with a high temperature in the low-40s.

Saturday – overnight temperatures warming due to warm advection ahead of that warm front. We’ll end up in the warm sector of the first of these two mid-latitude cyclones on Saturday with high temperatures rising into the mid-upper 50s under mostly cloudy skies. Some chance for a scattered shower more likely later in the day as some post-frontal rain develops with a cold front exiting to the east.

Sunday – slightly cooler, high temperatures in the upper-40s. Another cloudy day, with rain continuing from overnight Saturday as first a warm front then a cold front moves through with this second storm system.

Monday – finally a dry day with mostly sunny skies and high temperatures in the mid-50s after this chain of storms!

NYC Weekend Weather – Feb 16, 2018

NYC, Rain, Snow, Storms, Weekend, Western US, , , , , , , , , , , ,

This holiday weekend will feature some wild swings in temperature. We’ll bookend the weekend with chances for rain, but in between, we may see some decent accumulating snow. So much for an early spring.

Rest of today (Lunar New Year) – the year of the dog arrives on a cloudy day with temperatures dropping through the course of the day on the heels of a couple cold fronts pushing through. We have a break in the rain right now, but more will arrive later in the day. Winds turn to the northwest behind the front and increase in speed, bringing in a much colder air mass that will set the stage for snow on Saturday.

Saturday – much colder with temperatures topping out around 40°F after a very cold start. Increasing clouds as an area of low pressure developing off the Mid-Atlantic coast brings us the chance for accumulating snow. This coastal storm should be fairly fast mover, but forecasters think it will still bring enough precipitation to warrant a winter storm watch. The official forecasts are calling for a range of 4-8″ overnight Saturday into Sunday. Based on current forecast ensembles, I’m inclined to side with the lower end of that range and call for 4″ at best. As usual, the exact timing and track of this storm could still change a bit before the actual event. A slightly slower or slightly more northerly track would result in higher totals, and conversely a faster and more southerly track would result in only minor accumulations.

Sunday – warmer with high temperatures in the mid-40s and decreasing clouds. Whatever snow we get will begin to melt almost immediately.

Monday (President’s Day) – warmer still with high temperatures in the low-50s and chances for rain as a warm front approaches.

 

 

 

 

NYC Weather Update – Feb 12, 2018

NYC, Rain, Weather Update, Weekend, , , , , , ,

After a soaking rain this weekend, we start the week off with cooler, drier conditions. Temperatures ramp up going into mid-week before the next chance for precipitation hits us Thursday.

Rest of today – decreasing clouds as high pressure builds behind the cold front that passed through earlier today. High temperatures in the low-40s dropping through the course of the day.

Tuesday – mostly sunny with high temperatures in the mid-30s.

Wednesday – milder with high temperatures in the upper-40s and increasing clouds late in the day.

Thursday – a surge of warm air ahead of the next cold front to hit the area will raise temperatures well into the 50s, possibly as high as 60°F but with a chance for showers and mostly cloudy skies.