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Feb 8th-9th Potential Significant Coastal Storm


dryslot

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channel 5 hour by hour snowfall totals for new england. un..freakin..believable!

 

http://www.wcvb.com/weather/-/9850416/17313882/-/48gdds/-/index.html

Why do stations do that?  They take the most extreme case and throw it out there in a pretty, user friendly interface for the lazy 44 oz, big gulp drinking, American Idol watching crowd.   This kind of stuff gives forecasting a bad name (at leat in my opinion).

 

With that being said, I was surprised to see how much the lower hudson valley gets dumped on in that forecast.

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I'm pretty amazed with the multiple sources that try and spit out upwards of 10" of snow in 6 hour periods. 15z SREF do it, CAR's snow amount algorithm does it as well. Ended up doing a lot of "no higher than" in the forecast grids today because we're still like 48 hours out. Just too early to be pulling these numbers out.

 

Could be heavy, heavy sleep deprivation by the time Saturday afternoon rolls around.

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I'm pretty amazed with the multiple sources that try and spit out upwards of 10" of snow in 6 hour periods. 15z SREF do it, CAR's snow amount algorithm does it as well. Ended up doing a lot of "no higher than" in the forecast grids today because we're still like 48 hours out. Just too early to be pulling these numbers out.

 

Could be heavy, heavy sleep deprivation by the time Saturday afternoon rolls around.

 

 

I don't envy you or Eckster for this, Some tough decisions you guys could have, It is quite amazing at the model consensus for this one this far out

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Those ARW members have been amped up since the birth of time. I remember the NAM in jan 2011 did the same and tried to give NYC another 12/26/10. Ease off the ARW IMO.

 

Oh I agree... Some of the solutions are pretty ludicrous. However, even a good bit of the NMM models are juiced up as well. I said this earlier, but the SREF guidance (and most ensemble guidance in general) tends to be under-dispersive so we don't really see the true uncertainty in the variety of solutions. The ECMWF ensembles do a better job trying to capture the entire PDF of possible snowfall amounts in comparison to the GFS ensembles and SREF ensembles. Thus, even though the SREF means are in the 20-30" range for areas like Boston and even Albany... its likely there is still a decent amount of probability totals will be lower than progged. Lower than the SREF and GFS ensembles would necessarily have you believe. 

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I don't envy you or Eckster for this, Some tough decisions you guys could have, It is quite amazing at the model consensus for this one this far out

 

Blessing and a curse. Completely awesome to be forecasting these amounts, but also really stressful to be this far out on the edge. In reality I'm underdoing guidance, yet still pushing records. Almost no man's land.

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Blessing and a curse. Completely awesome to be forecasting these amounts, but also really stressful to be this far out on the edge. In reality I'm underdoing guidance, yet still pushing records. Almost no man's land.

 

Kind of damn if you darn if you don't, But you have to leave wiggle room in both directions, I am archiving as much of this data as i can, May never see numbers like this again

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Kind of damn if you darn if you don't, But you have to leave wiggle room in both directions, I am archiving as much of this data as i can, May never see numbers like this again

That's how I was in Valentines Day 2007... It was just run after run of 2-4" of QPF over BTV and northern VT. Sure enough it was correct and the ski areas saw 3-5 feet in like 36 hours, lol. This looks like that storm for you guys.

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HPC's recently issues qpf is just awesome.  2-3 inch amounts for almost all of sne and cne and up past Concord NH.  Unreal.  Given banding, ccb and deformation which will increase ratios, that implies 2-3 feet of snow with higher lollies.

 

http://www.hpc.ncep.noaa.gov/qpf/p120i.gif

 

 

That has some of the monday's qpf in it, I posted the 3 day one earlier

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