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NYC Jan 20/21 Obs and Discussion Thread


am19psu

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NAM aside, I haven't had a good feeling about this storm today for the NYC metro. Areas to the NE are a different story.

Why? I don't think any of us were expecting any massive totals. I think most of us around here would be very happy with 2-4 inches.

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<br>it is!  <img src="http://img.amwx.us/public/style_emoticons/default/weight_lift.gif" class="bbc_emoticon" alt=":weight_lift:">   I actually went with 3-6 for NYC this storm and watch we actually only get 1-3.<br>

Really?

Because - quite literally - 70% of your posts contain the phrase "1-3".  I keep thinking you're perpetuating some kind of ironic perspective but then I realize you're serious and it is even more baffling.

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Why? I don't think any of us were expecting any massive totals. I think most of us around here would be very happy with 2-4 inches.

The radar signature seems too far to the north ... the fact that we're on the SE edge of moderate snow totals ... would much rather be on the NW side.

Anyway, we'll see what happens. I haven't invested too much time or expectation for this storm... if it only delivers an inch or two, I won't be broken up over it. The ground will be covered when I wake up tomorrow and can't really ever complain about that.

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Really?

Because - quite literally - 70% of your posts contain the phrase "1-3".  I keep thinking you're perpetuating some kind of ironic perspective but then I realize you're serious and it is even more baffling.

lol, i forecast 1-3 when I see 1-3. I havent forecasted 1-3 at all this year, I have actually been pretty quiet on here. I have some money on 3.5 and higher so we can rest assured NYC will get less than that.

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lol, i forecast 1-3 when I see 1-3. I havent forecasted 1-3 at all this year, I have actually been pretty quiet on here. I have some money on 3.5 and higher so we can rest assured NYC will get less than that.

Dude,

U forecasted 1"-3" during last years snowicane.

And we ended with 12"-21".

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The radar signature seems too far to the north ... the fact that we're on the SE edge of moderate snow totals ... would much rather be on the NW side.

Anyway, we'll see what happens. I haven't invested too much time or expectation for this storm... if it only delivers an inch or two, I won't be broken up over it. The ground will be covered when I wake up tomorrow and can't really ever complain about that.

I posted last night there would be bridge jumping due to that radar signature...the 500mb trough tracks too far north for the WAA precip to cause snow east of NW NJ initially but that area of snow will likely fall apart in the next few hours with redevelopment over NJ.

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Chill brah, my comment to Snow88 was a compliment, not a dig.

I don't even know what the RSM is! You guys know many more models and their derivative models than I, that's for sure.

I believe Srefs are run with RSM and ETA members

So the actual RSM is a useful model, especially short term.

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generally I think if the RSM is showing good precip thats a nice sign, it tends to be precip light.

It tends to be QPF light because it goes nuts with convective bombs everywhere lighting up the model like a Christmas tree. It'll often have subsidence all over the damn map screwing up it's precipitation fields.

But yes there are a bunch of rsm members in the sref mean

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Does anyone notice how some people only come out and post when things are not going so well, like tonight's NAM.

Yeah, those are typically the people you want to ignore instead of the way it is usually handled with a bunch of people responding to their posts. They are trolls, there is an ignore button. I utilized it a long time ago so I didn't see those posts until somebody quoted it.

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Also, for the very little that it's worth...the RUC gives us a few hours of heaven later tonight.

1ref_sfc_f15.png

this thread needs to refocus. I like the looks of the RUC model... and here's a sign it may be onto something...

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE NEW YORK NY

805 PM EST THU JAN 20 2011

.SYNOPSIS...

-- Changed Discussion --A LOW PRESSURE SYSTEM WILL PASS SOUTH OF LONG ISLAND TONIGHT AND EAST OF

CAPE COD ON FRIDAY. ARCTIC HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND

INTO THE BEGINNING OF NEXT WEEK.-- End Changed Discussion --

&&

.NEAR TERM /THROUGH FRIDAY/...

-- Changed Discussion --A 1007 MB LOW PRES SYS WAS JUST NW OF BECKLEY WV KBKW WITH A TOUGH

OF LOW PRES EXTENDING NE ACROSS WESTERN PA AT 00Z/7 PM.

TWO AREAS OF PRES FALLS WERE OBSERVED...A 3.6 MB FALL OVER SW PA

ALONG THE TROUGH AXIS AND A 2.5 MB FALL OVER THE NC COAST.

AS THE FIRST WEAK LOW ADVECTS NE ACROSS SW PA...ANOTHER LOW WILL

FORM FURTHER NE OFF THE MID ATLANTIC COAST.

A LIGHT E WIND FLOW AT THE SFC ACROSS THE NYC METRO AREA HAS RESULTED

IN HIGHER TEMPS THAN THE EARLIER FORECAST. THIS LIGHT ONSHORE FLOW WILL

PERSIST CAUSING SFC TEMPS TO FALL VERY SLOWLY UNTIL SNOW DEVELOPS AND

BECOMES WIDESPREAD ACROSS THE REGION AFTER 06Z/1 AM TONIGHT. UPDATED

WIND FCSTS THROUGH 06Z BASED ON THE 13 KM RUC MODEL...WHICH WAS THE

ONLY MODEL SHOWING THIS LIGHT NE FLOW.

IN THE MEAN TIME...RADAR CONTINUES TO SHOW THE DEVELOPMENT OF MID LVL

REFLECTIVITES ACROSS THE REGION. ALTHOUGH SNOW FLURRIES FALLING THROUGH

THIS MID CLOUD DECK CAN NOT BE RULED OUT...IT WILL TAKE SOME TIME TO

SATURATE THE SUB CLOUD LAYER AND OVERCOME 15 DEGREE DEW POINT DEPRESSIONS.

ADJUSTED AND SLOWED THE TIMING OF STEADIER SNOW SLIGHTLY.

OTHERWISE...OUR CURRENT AFTERNOON FCST STANDS.

with the ruc picking up on the short term trends, it might be sensing something about the overall evolution of the storm

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