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February 13-14th Potential Winter Storm Threat Discussion


Zir0b

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the pattern up in SE canada prevents this from really coming too far north. I'm honestly not worried about rain mixing in

 

Right, the only downside potential to the snowfall forecast is the speed of the system. My guess is that the

12z Euro and GFS tomorrow will probably have the same amount of snow for our area.

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Looking at the SREF's and today's model suite...I think a 3-6 inch storm from TTN to NYC is a lock. No more; no less. Just another event to add to the books and help our winter total.

 

 

6"+ is very much a possibility. STJ events tend to be fairly moist, and even though it's fast moving, a thump for several hours could yield 6-10" or so.

 

The Euro today is not done trending IMO and will increase its QPF output noticably tonight. Virtually all data is wetter than the operational Euro as it stands.

 

And by the way, as expected the GFS is taking the Euro to school with this event. The pattern does not favor suppression into the Carolinas.

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some of us may get just as much snow and some folks even more from the mid week event then we got we got from this past weekends storm - only got 6 inches in northern middlesex - areas south of here less..........only have about 3 inches left

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some of us may get just as much snow and some folks even more from the mid week event then we got we got from this past weekends storm - only got 6 inches in northern middlesex - areas south of here less..........only have about 3 inches left

 

 

Well they had 9-10" back home in Monmouth so I think it's going to be pretty tough to beat that. But two storms of 6"+ within a week would certainly be memorable if that occurs.

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Well they had 9-10" back home in Monmouth so I think it's going to be pretty tough to beat that. But two storms of 6"+ within a week would certainly be memorable if that occurs.

Most of the posters in northern middlesex got 8-10. So that 6 is very suspect. Mgerb in somerset got 7.5 and New Brunswick 8. Got 10 here in edison.

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.MIDDLESEX COUNTY...

CHEESEQUAKE 9.8 245 AM 2/09 PUBLIC

METUCHEN 8.9 915 AM 2/09 TRAINED SPOTTER

SOUTH PLAINFIELD 8.8 948 AM 2/09 PUBLIC

FORDS 8.5 1209 PM 2/09 TRAINED SPOTTER

PISCATAWAY 8.5 300 AM 2/09 PUBLIC

NEW BRUNSWICK 8.2 800 AM 2/09 CO-OP OBSERVER

EAST BRUNSWICK 7.4 635 AM 2/09 PUBLIC

KINGSTON 6.0 930 AM 2/09 TRAINED SPOTTER

MONROE TWP

6 inches was in the se corner of the county, were change over took longer

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Most of the posters in northern middlesex got 8-10. So that 6 is very suspect. Mgerb in somerset got 7.5 and New Brunswick 8. Got 10 here in edison.

neg-nao has been the most pessimistic about the winter, and also that storm. So it isn't surprising he comes in here saying how he got the lowest (unrealistic obviously) total in middlesex county. He's like the new noreaster, who btw didn't post during the blizzard I dont believe...did he get banned? Havent seen him in a while.

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Any concern that this amps up too much and we see rain? How much more would that have to be to have that happen, are we safe even with a large shift north, or any more north and we start to have issues?

-skisheep

 

Highly unlikely to happen. Not only is there a kicker back to the west-northwest, but an active/fast flow to the north over Southeast Canada. This is why you're seeing some models look amplified and then keep the best precipitation a little southeast of where it normally would be with the surface low moving east-northeast instead of north-northeast as it amplifies off the coast. The fast, active flow to the northwest of the system is pressing down on the pattern.

 

So the more amped the shortwave can get, the better for anybody really north of Trenton. The pattern would support snow because the surface low would essentially be forced to tuck in southeast of Long Island.

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Guest Patrick

Rain is the least likely scenario.  Not impossible, but I believe if it amps up enough and comes further north, it is going to have to have better dynamics and be a stronger system...and snowier.....or weaker and further south.

Any concern that this amps up too much and we see rain? How much more would that have to be to have that happen, are we safe even with a large shift north, or any more north and we start to have issues?

-skisheep

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Any concern that this amps up too much and we see rain? How much more would that have to be to have that happen, are we safe even with a large shift north, or any more north and we start to have issues?

-skisheep

Talked about it earlier. Pattern in SE Canada prevents too northerly of a track. If anything we need to worry about its fast speed and the kicker, both of which would make it more progressive.

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.MIDDLESEX COUNTY...

CHEESEQUAKE 9.8 245 AM 2/09 PUBLIC

METUCHEN 8.9 915 AM 2/09 TRAINED SPOTTER

SOUTH PLAINFIELD 8.8 948 AM 2/09 PUBLIC

FORDS 8.5 1209 PM 2/09 TRAINED SPOTTER

PISCATAWAY 8.5 300 AM 2/09 PUBLIC

NEW BRUNSWICK 8.2 800 AM 2/09 CO-OP OBSERVER

EAST BRUNSWICK 7.4 635 AM 2/09 PUBLIC

KINGSTON 6.0 930 AM 2/09 TRAINED SPOTTER

MONROE TWP

6 inches was in the se corner of the county, were change over took longer

well the totals were not uniform and I only received 6.4 inches check this out most counties had a couple low totals - must have been my punishment for believing Alan Kasper and his rain forecast and then low snow total forecast

 

http://forecast.weather.gov/product.php?site=NWS&product=PNS&issuedby=OKX

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Good to know that rain is mostly out of the equation, thanks for your helpful replies and insight! Still slightly reserved on this to not having the EURO onboard, but it's shift at 12z makes me want to toss it in regards to QPF(since it probably will eventually come around, and we know that it's on the right track), and go with a GFS/NAM/GGEM combo, resulting in 3-6/4-8" for the metro area. Would not be shocked to see upton go with watches in the overnight package, although I think they might go advisories for 4-6" instead, the odds of 6" across a widespread area with this are relativley low, but I think 4-6" is much more likely.

-skisheep

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The 50/50 low in SE Canada essentially puts a "lid" on the amount of amplification / height rises over the Northeast. If there was no blocking vortex, then the sern vort would have free reign to cut northward. However, as stands, I don't see why modelling would change significantly from where we're at right now.

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Most of the posters in northern middlesex got 8-10. So that 6 is very suspect. Mgerb in somerset got 7.5 and New Brunswick 8. Got 10 here in edison.

There were reports of only 6 in Woodbridge and Piscataway; my BIL measured only 6 in Piscataway while some areas there reported 8. The Home News reported only 5 for Newark, and that has to be wrong. Woodbridge always under measures and had us down for 8 after the Snowicaine, when it was obviously more. I saw a report of around 8 in Fords and 10 in Edison. so figure a general 6-11 fell, which was in line with actual projections.But as for this storm, since i am on the cusp of Mt Holly and Upton, the reports I see from Mt Holly refelected uncertainty. It does seem to look a bit warm to my untrained eye, and we will need north/northeast winds or it will rain.

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There were reports of only 6 in Woodbridge and Piscataway; my BIL measured only 6 in Piscataway while some areas there reported 8. The Home News reported only 5 for Newark, and that has to be wrong. Woodbridge always under measures and had us down for 8 after the Snowicaine, when it was obviously more. I saw a report of around 8 in Fords and 10 in Edison. so figure a general 6-11 fell, which was in line with actual projections.But as for this storm, since i am on the cusp of Mt Holly and Upton, the reports I see from Mt Holly refelected uncertainty. It does seem to look a bit warm to my untrained eye, and we will need north/northeast winds or it will rain.

Our two posters from Woodbridge and Piscataway had 7-9, where did you get this report

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some of us may get just as much snow and some folks even more from the mid week event then we got we got from this past weekends storm - only got 6 inches in northern middlesex - areas south of here less..........only have about 3 inches left

 

 

Well they had 9-10" back home in Monmouth so I think it's going to be pretty tough to beat that. But two storms of 6"+ within a week would certainly be memorable if that occurs.

 

 

Most of the posters in northern middlesex got 8-10. So that 6 is very suspect. Mgerb in somerset got 7.5 and New Brunswick 8. Got 10 here in edison.

 

Yep.  I got 10.5" in Metuchen, in the heart of northern Middlesex, and I suspect that the 8.9" report from Metuchen might be lower than it should be for two reasons: first, I'm not sure the person included the 0.5" we got in the morning, which melted with the rainfall after that, and second, if they truly measured at 9:15 am, they likely would have seen 0.5-0.75" of compaction relative to my 7:00 am measurement, which was taken before the sun came up and just an hour or so after the last flurries were over - I remeasured at 10 am and my snow depth had compacted by 0.75", so I could easily see a 9:15 am measurement being 0.5" low.  I'm also kind of a nut when I measure - I generally average out several measurements and I always take at least 10 measurements with my final measurement (possibly not needed for this storm, since drifiting was minimal, but sometimes it's important).  Also, if you look at the NWS snowfall map, just about all of Middlesex County is in the 8-12" swath, as were all the reports, so 6" is simply not credible.  Lastly, every report from Union County, 7+ miles north of me, was over 10" and same for Staten Island, which is 5+ miles east of me. 

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Yep. I got 10.5" in Metuchen, in the heart of northern Middlesex, and I suspect that the 8.9" report from Metuchen might be lower than it should be for two reasons: first, I'm not sure the person included the 0.5" we got in the morning, which melted with the rainfall after that, and second, if they truly measured at 9:15 am, they likely would have seen 0.5-0.75" of compaction relative to my 7:00 am measurement, which was taken before the sun came up and just an hour or so after the last flurries were over - I remeasured at 10 am and my snow depth had compacted by 0.75", so I could easily see a 9:15 am measurement being 0.5" low. I'm also kind of a nut when I measure - I generally average out several measurements and I always take at least 10 measurements with my final measurement (possibly not needed for this storm, since drifiting was minimal, but sometimes it's important). Also, if you look at the NWS snowfall map, just about all of Middlesex County is in the 8-12" swath, as were all the reports, so 6" is simply not credible. Lastly, every report from Union County, 7+ miles north of me, was over 10" and same for Staten Island, which is 5+ miles east of me.

I seriously wish you would become a trained spotter, your report would be great for our area. His 6 makes no sense and is just another last minute attempt to poo poo the event. Was at haileys with my gf before going to Knicks game yesterday. She is from metuchen

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Yep. I got 10.5" in Metuchen, in the heart of northern Middlesex, and I suspect that the 8.9" report from Metuchen might be lower than it should be for two reasons: first, I'm not sure the person included the 0.5" we got in the morning, which melted with the rainfall after that, and second, if they truly measured at 9:15 am, they likely would have seen 0.5-0.75" of compaction relative to my 7:00 am measurement, which was taken before the sun came up and just an hour or so after the last flurries were over - I remeasured at 10 am and my snow depth had compacted by 0.75", so I could easily see a 9:15 am measurement being 0.5" low. I'm also kind of a nut when I measure - I generally average out several measurements and I always take at least 10 measurements with my final measurement (possibly not needed for this storm, since drifiting was minimal, but sometimes it's important). Also, if you look at the NWS snowfall map, just about all of Middlesex County is in the 8-12" swath, as were all the reports, so 6" is simply not credible. Lastly, every report from Union County, 7+ miles north of me, was over 10" and same for Staten Island, which is 5+ miles east of me.

The nws did remove almost all reports that were either wildly inaccurate or posted before storm was over, but curiosly left up a few. I highly doubt that 5 in SI and that 7.5 in Greenwich village in NYC was at 207, which was probably right for 207 but it snowed for another two hours. And from 151 to 451 am CPK recorded almost 0.2 liquid or around 2-5-3 inches if snow. So that probably should've been removed along with a couple others.

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