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NYC/PHL Jan 18-19 Potential Threat Thread


am19psu

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On the GFS for next weekend, which John posted is a Mantobia Mualer or somewhat close to it, those events can pack quite a punch if timed perfectly such as the Blizzard of 2005 and Blizzard of 1978 in Southern New England with the Miller B cyclogenesis. The Alberta Clipper is the weakest form of the shortwaves (clippers) that orginate in Canada. There are three: Clpper, Mauler, Screamer. The Saskatchewan Screamer is the strongest form of these and they are much more rare than the Mauler and Clipper.

Chris,

You got the "Screamer" and "Mauler" mixed up. The mauler is the most "dangerous," as it typically takes on a negative tilt as it digs toward the East Coast.

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There is more of a CAD signature on this run.

Either way though, this pattern looks to be more of light snow very early close to coast before quick changeover to rain. To much WA to combat the residual cold air especially with the high shifting well to the south and east. Inland areas however could be dealing with a snow to ice type scenario.

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Either way though, this pattern looks to be more of light snow very early close to coast before quick changeover to rain. To much WA to combat the residual cold air especially with the high shifting well to the south and east. Inland areas however could be dealing with a snow to ice type scenario.

I'm not expecting a lot of snow. Just give me 1-3 inches before the rain and I will be happy.

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Wait, you mean no changeover, like to rain from pl or fzra, how so?

Almost all cases in which there is a strong high positioned where the GFS shows it at 72-78 hours and the surface low tracks east of NYC there has been an extended period of frozen precipitation, usually beyond what any of the forecasts had or the models had been showing...I may have been too aggressive by stating no changeover but 85-90% of what falls may very be frozen if that scenario played out.

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Almost all cases in which there is a strong high positioned where the GFS shows it at 72-78 hours and the surface low tracks east of NYC there has been an extended period of frozen precipitation, usually beyond what any of the forecasts had or the models had been showing...I may have been too aggressive by stating no changeover but 85-90% of what falls may very be frozen if that scenario played out.

does that work the same for phl and its burbs, considering they are not right on the coast, a little more interior?

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Almost all cases in which there is a strong high positioned where the GFS shows it at 72-78 hours and the surface low tracks east of NYC there has been an extended period of frozen precipitation, usually beyond what any of the forecasts had or the models had been showing...I may have been too aggressive by stating no changeover but 85-90% of what falls may very be frozen if that scenario played out.

I don't know if I agree with you 100%, but you do have some very valid points/concerns, especially considering how cold it's going to be on Monday. If you turn out to be right, we can call this the Goose Storm!

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good lord its brutally cold on the gfs after that mauler. If we can have somewhat of a snow pack with sub 504 thickness, that could be the coldest day/night in years, assuming no wind.

I lived in Allentown from about 2004 through 2009. I do recall one winter where the temps got near 0 one night. It seems like it was within the last 4 winters, but that is the coldest I've got to in recent years. Do you think this would rival that, as modeled? I'll have to check Mt Holly climatology info to see what night that was.

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