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January 2018 Discussions & Observations Thread


Rtd208

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23 minutes ago, PB COLTS NECK NJ said:

Guess you guys can`t see those maps , it`s a cold rain changing to snow all the way to the coast with accumulating snow in far NWNJ into the HV ( even onto Long Island - Bluewave is a snow magnet )  and a snowstorm from the Catskills N . 

 

The coast is going to rain , but the LHV should pay attention to the weekend system. 

The coast is going to rain as per right now but I think this shifts more east.

Models are starting to catch on to the PNA spike . The AO is going to be slightly negative. 

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8 minutes ago, bluewave said:

Most of the snowpack with the exception of the larger piles and drifts will be gone by Monday morning. Widespread 50's on Friday with heavy rain and fog. Your area of CNJ will make a run on 60. 

 

ecmwf_t2max_12_nj_19.thumb.png.32da6fac26022f4781c13513f829c404.png

 

 

 

 

Yeh , its`s a 1 day warm up on the European OP.

 

Now look at 120 and 126 and overlap the precip.

 

You pour at 40 degrees 

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1 minute ago, PB COLTS NECK NJ said:

Yeh , its`s a 1 day warm up on the European OP.

 

Now look at 120 and 126 and overlap the precip.

 

You pour at 40 degrees 

Overall the trends have been mixed.  The warmup this week may not be as bad.  The ensuing cold shot has lost some punch and it looks largely dry to boot.  The main theme though is the warmup after that has gained steam for sure.  I was doubting my idea of running it to 1/26-1/28 but it’s probably going to be at least that.  JB’s 2/5 idea may be close.  I don’t think it’s going to be an all out torch though 

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With regard to the modeled PNA- in the long-range (1/20-25), this modeled trough should coincide with the peak of the thaw that is getting underway. However, one should not assume generally unrelenting warm or very warm conditions, as the AO is forecast to be negative during much of that time. Transient cold shots, along the lines of what is likely Wednesday and forecast on the guidance for the 14th-15th, remain possible. Such cold shots could lower the overall mean temperature for the period as a whole and, if timed with precipitation, could provide at least some opportunity for snow or sleet.

For the January 1-31, 1981-2010 period, here’s select data for New York City:

All cases:
Mean temperature: 33.0°
% days with measurable snowfall: 13.0%

PNA of -0.75 or below:
Mean temperature: 38.4°
% days with measurable snowfall: 4.3%

PNA of -0.75 or below and an AO < 0:
Mean temperature: 33.4°
% days with measurable snowfall: 8.3%

All in all, I don’t think January has seen its last measurable snowfall in the NYC area, even if today produces no measurable snow at Central Park. I have little reason to change my thinking that the month could see 10”-15” snow.

Following the thaw, I believe the EPO-/AO-/PNA+ pattern that has recently predominated will redevelop.

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2 minutes ago, SnowGoose69 said:

Overall the trends have been mixed.  The warmup this week may not be as bad.  The ensuing cold shot has lost some punch and it looks largely dry to boot.  The main theme though is the warmup after that has gained steam for sure.  I was doubting my idea of running it to 1/26-1/28 but it’s probably going to be at least that.  JB’s 2/5 idea may be close.  I don’t think it’s going to be an all out torch though 

This week seems more like a transitory week before the full 2-week thaw, once we lose the EPO and PNA I think things will get very toasty (last 1/3 of January) for a few days. 

No 70F this week, 60 maybe but I'd be shocked if the 60s didn't come back when the thaw gets fully going. 

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4 minutes ago, SnowGoose69 said:

Overall the trends have been mixed.  The warmup this week may not be as bad.  The ensuing cold shot has lost some punch and it looks largely dry to boot.  The main theme though is the warmup after that has gained steam for sure.  I was doubting my idea of running it to 1/26-1/28 but it’s probably going to be at least that.  JB’s 2/5 idea may be close.  I don’t think it’s going to be an all out torch though 

 

There should be a nice 10 day reprieve after day 9. It is going to feel nice after this well BN stretch.  The Euro monthly is out today for Feb and it looks very good and is in line with what many have been thinking for February. 

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5 minutes ago, LongBeachSurfFreak said:

Started as freezing rain on the UWS. The a period of snow and now sleet. The mid levels must be a mess

I was shocked to an extent we saw freezing rain.  I thought it was maybe 10% we would see any based on the soundings but it’s real tricky sometimes.  I think the margin of the warm layer for sleet vs freezing rain is impacted by many other factors beyond what most realize 

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32 minutes ago, PB COLTS NECK NJ said:

 

There should be a nice 10 day reprieve after day 9. It is going to feel nice after this well BN stretch.  The Euro monthly is out today for Feb and it looks very good and is in line with what many have been thinking for February. 

More traditional La Nina pattern developing next few weeks. Looks like the Euro tries to bring the forcing back closer to W oft he DL later in the month.  With a lag, that should probably produce a post thaw more favorable winter period in February.

DS8akyiUQAALMqG.jpg-small.jpg.4aac8ca63425ff91274b5e382c6e8505.jpg

 

 

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4 minutes ago, LongBeachSurfFreak said:

That’s what my Gf just reported in Wantagh. I thought once it changed to snow here on the UWS it would stay snow. But it went over to and has stayed sleet

Same here.  Back to mostly sleet now.  I suspect it will flop around some more before it ends.  Basically the mixed bag that was advertised.

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1 hour ago, PB COLTS NECK NJ said:

Yeh , its`s a 1 day warm up on the European OP.

 

Now look at 120 and 126 and overlap the precip.

 

You pour at 40 degrees 

Nice ice/ snowstorm trends today on Euro/ GEFS/ EPS Fri nite into Sunday AM interior of your area and New England. I’d even watch NYC for some sort of changeover at some point. That HP keeps trending stronger each run and is pressing in from the NW.. not pulling away NE . 5 days to continue trending 

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2 minutes ago, Damage In Tolland said:

Nice ice/ snowstorm trends today on Euro/ GEFS/ EPS Fri nite into Sunday AM interior of your area and New England. I’d even watch NYC for some sort of changeover at some point. That HP keeps trending stronger each run and is pressing in from the NW.. not pulling away NE . 5 days to continue trending 

NFL Playoff game Saturday Night in Foxboro

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Just now, Damage In Tolland said:

Nice ice/ snowstorm trends today on Euro/ GEFS/ EPS Fri nite into Sunday AM interior of your area and New England. I’d even watch NYC for some sort of changeover at some point. That HP keeps trending stronger each run and is pressing in from the NW.. not pulling away NE . 5 days to continue trending 

Kevin, it's one of those winters where it just wants to snow.

I don't trust any torch that has high latitude blocking 

Warm from this sick period ,  certainly but I just don't see anything long term or extreme.

In fact I would not be shocked to see it snow in the relaxation period 

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5 minutes ago, PB COLTS NECK NJ said:

Kevin, it's one of those winters where it just wants to snow.

I don't trust any torch that has high latitude blocking 

Warm from this sick period ,  certainly but I just don't see anything long term or extreme.

In fact I would not be shocked to see it snow in the relaxation period 

And while I wouldn’t call for it yet.. we may be able to have less than a 24 hour period of “torch “ this week. 

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13 minutes ago, Damage In Tolland said:

Nice ice/ snowstorm trends today on Euro/ GEFS/ EPS Fri nite into Sunday AM interior of your area and New England. I’d even watch NYC for some sort of changeover at some point. That HP keeps trending stronger each run and is pressing in from the NW.. not pulling away NE . 5 days to continue trending 

Thanks for wandering on down to our little slice of heaven here.

Strongly agree about that high pressure, it’s a nice banana high that is pressing down on this system. Hopefully we see more model response east/colder with this feature.

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5 minutes ago, JetsPens87 said:

Thanks for wandering on down to our little slice of heaven here.

Strongly agree about that high pressure, it’s a nice banana high that is pressing down on this system. Hopefully we see more model response east/colder with this feature.

It's really not that far away already for areas N and W.

 

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27 minutes ago, JetsPens87 said:

Thanks for wandering on down to our little slice of heaven here.

Strongly agree about that high pressure, it’s a nice banana high that is pressing down on this system. Hopefully we see more model response east/colder with this feature.

Well Qg Omega likes to come into the SNE forum and spew nonsense  like it would be in the 50’s this weekend with a low over Buffalo . So I figured I’d just swing by and try and offer some keen insight. One or two more trends stronger and we get NYC into at least some wintry precip 

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