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NYC/PHL Jan 25-28 Potential Threat Part 2


am19psu

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I find it weird that it's rain with a great track like that.

What's weird about it? There's no supply of cold air for the majority of the area because the high pressure slides eastward without a westward oriented block. That's cut and dry stuff right there.

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the high pressure positioning is god awful and harbors warner air being returned from the east into the storm system.

But remember...the Euro is trending faster and further east. This argues that the high has less time to slip off the coast with better dynamic cooling on the NW side of the low pressure. Sounds like a heavy wet snowstorm for the NYC burbs with rain-->snow in th Five Boroughs.

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But remember...the Euro is trending faster and further east. This argues that the high has less time to slip off the coast with better dynamic cooling on the NW side of the low pressure. Sounds like a heavy wet snowstorm for the NYC burbs with rain-->snow in th Five Boroughs.

the high escaped faster this run compared to 12z..

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What's weird about it? There's no supply of cold air for the majority of the area because the area of high pressure slides eastward without a westward oriented block. That's cut and dry stuff right there.

It's really hard for me particularly to think that the record cold we're getting this weekend just goes away in the blink of an eye.

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But remember...the Euro is trending faster and further east. This argues that the high has less time to slip off the coast with better dynamic cooling on the NW side of the low pressure. Sounds like a heavy wet snowstorm for the NYC burbs with rain-->snow in th Five Boroughs.

LOL, no. surface temps, 850, pick a level, all above freezing.

Maybe some flakes on the back side with some sloppy seconds but any real snow is into upstate ny central pa

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the high escaped faster this run compared to 12z..

I find it hard to believe that we're going to go from -20C 850s Monday to rain Tuesday with a low pressure centered to our SE. Sounds like a bogus temperature profile, which it typical of the Euro's warm bias at this range. I'd shave 1-2C off the 850mb temps since that represents the ECM bias in terms of medium-range forecasts.

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Don't forget Central PA posters...if you haven't heard from the nearly constant noise of whining over the past two months five plus winters..they have been getting screwed.

If I-81 west finally gets the massive snow they've been deserving for that long, I'll gladly take an all rain event here. It's really been hell out there.

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But remember...the Euro is trending faster and further east. This argues that the high has less time to slip off the coast with better dynamic cooling on the NW side of the low pressure. Sounds like a heavy wet snowstorm for the NYC burbs with rain-->snow in th Five Boroughs.

Its probably 80-90% rain there...the snow isn't until you get well into the Catskills.

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I find it hard to believe that we're going to go from -20C 850s Monday to rain Tuesday with a low pressure centered to our SE. Sounds like a bogus temperature profile, which it typical of the Euro's warm bias at this range. I'd shave 1-2C off the 850mb temps since that represents the ECM bias in terms of medium-range forecasts.

What do you expect from a deep SE flow from a high and low both to our east? It's just not favorable verbatim for anyone near the coast.

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I find it hard to believe that we're going to go from -20C 850s Monday to rain Tuesday with a low pressure centered to our SE. Sounds like a bogus temperature profile, which it typical of the Euro's warm bias at this range. I'd shave 1-2C off the 850mb temps since that represents the ECM bias in terms of medium-range forecasts.

It might be a tick or two warm at 850, but a strong low near ACY and moving into LI will bring a ton of warm air with it. That surface high is doing its best to try and hang colder air in. This solution would be exponentially better for many of it were a bit east, or dug even a little less when it nears the Gulf.

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Well believe it because it can easily happen

I find it hard to believe that we're going to go from -20C 850s Monday to rain Tuesday with a low pressure centered to our SE. Sounds like a bogus temperature profile, which it typical of the Euro's warm bias at this range. I'd shave 1-2C off the 850mb temps since that represents the ECM bias in terms of medium-range forecasts.

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