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NYC Jan 11-12 Miller B Thread Part 2


am19psu

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I mentioned the radar reminds me of that event, but that secondary low was way weaker and also formed way more north off C or S NJ....the mixing was also well forecast on that event though it persisted longer...however, it only impacted the immediate coast as well...southern LI saw sleet all evening while LGA and NYC were all snow...there was also FZDZ all day leading into the event.

Yeah, you're right...the events really weren't all that similar. However, in that storm, once the coastal got going, we got absolutely rocked for a short period of time.

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Remember for the RUC ever since it went past 12 hours, it consistently has winter storms further west than reality.

very true in terms of track, precip wise its always hard to tell since with the NCEP maps you can't get an 18hr total map. I could see the track being further east while the precip is less so.

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Seems like we are at a Crossroads with this storm some people forecasters cutting things down some still thinking it will be big even west of where the Models show the heaviest Precip. I think this is where U see who who is just a model reader and Hugger and who actually knows weather and setups. For Example a weather tool like Henry M is now saying this is just a Boston storm as Primary low is gonna push Secondary low too far East..Basically a Storm cancel for NY and NJ while others still are saying heavy bands will make it back into NJ and 8-12 inches can still be seen in parts of NJ into the City. That is 2 completely different camps even Ch 2 news already stating they may have to lower totals. Will be interesting to see who is right and how right or wrong the Models really are(ie GFS)...

From my perspective 12 hrs ago I was just going to bed thinking Most of NJ into NYC would be 1-2 ft going by the Nam and a couple other short range models... It has been disappointing seeing the Guidance all going the other way with the heavy precip as My Area N-Central NJ looks like its precip is cut in half if not more. Anyway maybe a surprise or two is still in Store and will be a curious to see the evolution of this storm as we go through the night.

EDIT just watched Lee G ch 7 has my area in the 6-9 band but he seems low as he has 12-18 as the jackpot LI into Conn.. Have seen Conn 18-24 in alot of other forecasts.

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Take a look at the WV LOOP. You can see a dry slow forming in OH working its way into PA. Should help to enhance the precip on the eastern side which I think is the reason why the radar in PA has been filling in the last few hours.

http://www.nws.noaa....age=wv&hours=24

Yes. That is the trough digging and the jet strengthening. The coastal low will start to strengthen soon as well.

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Seems like we are at a Crossroads with this storm some people forecasters cutting things down some still thinking it will be big even west of where the Models show the heaviest Precip. I think this is where U see who who is just a model reader and Hugger and who actually knows weather and setups. For Example a weather tool like Henry M is now saying this is just a Boston storm as Primary low is gonna push Secondary low too far East..Basically a Storm cancel for NY and NJ while others still are saying heavy bands will make it back into NJ and 8-12 inches can still be seen in parts of NJ into the City. That is 2 completely different camps even Ch 2 news already stating they may have to lower totals. Will be interesting to see who is right and how right or wrong the Models really are(ie GFS)...

From my perspective 12 hrs ago I was just going to bed thinking Most of NJ into NYC would be 1-2 ft going by the Nam and a couple other short range models... It has been disappointing seeing the Guidance all going the other way with the heavy precip as My Area N-Central NJ looks like its precip is cut in half if not more. Anyway maybe a surprise or two is still in Store and will be a curious to see the evolution of this storm as we go through the night.

EDIT just watched Lee G ch 7 has my area in the 6-9 band but he seems low as he has 12-18 as the jackpot LI into Conn.. Have seen Conn 18-24 in alot of other forecasts.

I don't understand what the worrying and sudden shifts in forecast thoughts are coming from. Henry M needs a refresher in dynamics I think.

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I don't understand what the worrying and sudden shifts in forecast thoughts are coming from. Henry M needs a refresher in dynamics I think.

Seriously. As I said before, people should not be looking at the radar until at least 8pm. Here is the simulated radar from the very wet NMM valid for 4pm and 7pm, respectively. Look at how "dry" it is for those times.

http://www.nco.ncep....sw_ref_009l.gif

http://www.nco.ncep....sw_ref_012l.gif

The storm is really not supposed to get going until at least 7, 8, or 9pm...the radar now is really nothing to worry about. People should just relax for the next few hours, IMO.

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Seriously. As I said before, people should not be looking at the radar until at least 8pm. Here is the simulated radar from the very wet NMM valid for 4pm and 7pm, respectively. Look at how "dry" it is for those times.

http://www.nco.ncep....sw_ref_009l.gif

http://www.nco.ncep....sw_ref_012l.gif

The storm is really not supposed to get going until at least 7, 8, or 9pm...the radar now is really nothing to worry about. People should just relax for the next few hours, IMO.

And to be completely honest the radar doesn't show the storm completely together in terms of precip until probably around 03-04z this morning or around midnight. By 6z it has major banding setting up. Should be fun to watch unfoldpopcorn.gif

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Seriously. As I said before, people should not be looking at the radar until at least 8pm. Here is the simulated radar from the very wet NMM valid for 4pm and 7pm, respectively. Look at how "dry" it is for those times.

http://www.nco.ncep....sw_ref_009l.gif

http://www.nco.ncep....sw_ref_012l.gif

The storm is really not supposed to get going until at least 7, 8, or 9pm...the radar now is really nothing to worry about. People should just relax for the next few hours, IMO.

Right, the SUNY MM5 had a 1016 low SE of NC at 18Z, obs were as low as 1012. 21Z it has a 1015...Hatteras is reporting 1014. MM5 doesn't take off until after 0Z, just as all guidance has been suggesting since at least 2 days ago. Nothing has honestly changed. This whole idea of the OV surface low "shunting" the storm eastward is silliness.

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And to be completely honest the radar doesn't show the storm completely together in terms of precip until probably around 03-04z this morning or around midnight. By 6z it has major banding setting up. Should be fun to watch unfoldpopcorn.gif

The SPC WRF simulated radar showed no organized precipitation until around that time as well on its 00Z run last night.

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I mentioned the radar reminds me of that event, but that secondary low was way weaker and also formed way more north off C or S NJ....the mixing was also well forecast on that event though it persisted longer...however, it only impacted the immediate coast as well...southern LI saw sleet all evening while LGA and NYC were all snow...there was also FZDZ all day leading into the event.

That was a weird but dynamic storm indeed. I was frustrated as anyone listening to sleet pinging outside my window for hours while Times Square was getting heavy snow, but when it finally changed over I had close to 10" in a few hours.

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<br />One of you has the WeatherTap Northeast radar....can you post it please <img src="http://img.amwx.us/public/style_emoticons/default/smile.gif" /><br />

I tried posting it earlier.. The upload onto tiny pic was giving me problems for some reason.. It was only letting me upload satellite pics successfully

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you'll go with a met who has a bad reputation as opposed to all of the amazing mets who post on this forum? Great move. Also if you dont have realistic expectations for this storm then it may appear to be a bust but anyone expecting more than 10 in NYC and 6 from E. Pa to western jersey is setting themselves up for a disappointment. But it not being a big deal for NYC? I would not buy that at this juncture since only 0.4to 0.5 of QPF with 12 or 13-1 ratios still yields around 7 inches which is a nothing to sneeze at. No model has this little QPF btw even the GFS which initialized WAY too far east with the coastal still brings the .75 line into queens and the bronx and gets at least .65-.7 into NYC proper.

He still says 6-8 for NYC

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Everyone should also realize this storm is convective in nature and thus it will go from zero to 100 in a blink of an eye. The precip rates are progged to be as much as .60 in a three hour time and it won't build up to that, it will just happen.

This is a truly unique setup, and there is high bust potential both ways. A lot will be learned as to how the various models handle these situations and going forward we can all adjust our forecasts appropriately.

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IMO everything is going as planned for NYC and northeast. The storm was and is forecasted to explode after 00z tonight and really after 03z. Precip should bloom over NJ/NYC late tonight and really get cranking around 09z where a heavy band will move over or close to NYC and then towards LI..pounding LI, CT, SNE. thats it.

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