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Everything posted by Terpeast
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A moderate 1.3-1.6 nino would be good for the mid atlantic, much better than a strong/super. The pdo will have something to say about it though.
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Winter 2022-2023 Promises Plenty of Mid Season Mayhem
Terpeast replied to 40/70 Benchmark's topic in New England
Nice work, @40/70 Benchmark I enjoy reading your posts. This was a tough one to forecast because it falls on the extreme end of the climate spectrum. Who would have guessed that JF would see +8 temps while California gets buried as record snows effectively erased their decades-long drought? Raindance did a good job, but even he didn’t forecast these extremes. Doug K down here in DCA only gave us 2-6” of snow in his outlook, and even he was too generous with that. Sure, the nina and +qbo, IOD, maritime forcing, etc. Were all unfavorable, but if you told me last October how this winter would transpire, I would have thought you were nuts. -
Did BBQ on the new grill for Mother’s Day. Perfect day today. Low humidity with a gentle breeze. Can’t ask for better than this. This won’t last long before the humidity comes in.
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Yeah, we’ll know better where this is going to go in another month or two. I think I saw somewhere that a WWB is coming later this month into early June, so we’ll see if that makes it over the dateline. That being said, I don’t think the stronger end of the forecasts are going to work out. I see it peaking at moderate or low end strong. 1.4 give or take
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Good to see this, thanks. So it IS possible for the PDO to rise by 2 or 3 in a short time span (a year or less). 8% seems a low probability, but it certainly wouldn't surprise me to see the PDO get close to neutral. Based on our east coast snowstorm history, we don't really need a strong +PDO for it to happen. We just need to mute the unfavorable mid-latitude pac forcing to allow the enso to couple.
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So do I. That’s why I’m hoping the -pdo will become less negative or closer to neutral.
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Exactly. Because the pdo is so negative now, I think it will stay negative for a while. Just less so.
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Best case is the pdo returns to neutral, which opens up some favorable possibilities for next winter. Don’t see it going positive so soon after record negative
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I had us at near to slightly above normal with a torchy Feb, but less snowy overall. Still busted pretty badly, but there was never an expectation of even a near normal winter in terms of snowfall. Next year, on the other hand...
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Remarkably consistent since 2016. At some point, that pattern has gotta break. Like 40/70 said, something's gotta give.
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How would you adjust past analogs toward today's climate? Some options come to top of mind: - brute force of adjusting temps up by a couple degrees across the board (oversimplistic, but can be complicated by the fact that doing so would eliminate 32-33 degree snowstorms we had in the past, esp in the MA) - adjusting storm tracks northward. Example: 72-73 had that big storm and much above normal snowfall across the SE US, but virtually nothing from DC to NYC. What if a 72-73 happened today? Would that storm have traversed further north and resulted in a DC-NYC hit? - match every winter from 2000 to today with the best pre-1980 analog, and compare the forcing (location and intensity), and note the changes as a result of a warmer state?
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Had you hid the years so I don’t see 72-73 or 97-98, I’d take those maps and run to the bank!
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Pretty sure its because those maps don’t have the resolution to convey such limited areas like lake effect snow belts.
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Hit 70 here too
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2023 Mid-Atlantic Garden, Lawn, and Other Green Stuff Thread
Terpeast replied to mattie g's topic in Mid Atlantic
I want to! But I’d prefer a solution that’s… uh… less messy. -
2023 Mid-Atlantic Garden, Lawn, and Other Green Stuff Thread
Terpeast replied to mattie g's topic in Mid Atlantic
Anyone know what I can use as a good squirrel repellent for my deck plants? Those little bastards keep pulling them out or tipping my pots over. I tried sprinkling ground pepper in and around the plants, but it seems the rain washed that away. -
65-66 had a neutral pdo leading into that winter so I didn’t mention it. It produced a prolific EC blizzard though
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This has never happened at these pdo levels. Closest is 72-73 when the pdo fell to -2 before that nino developed. It rose to neutral/weak negative by winter
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We’ll have to see how that plays out in a PDO that is currently negative 3! by comparison, pdo was moderate-strong positive in 1997, and neutral-weak negative in 1982
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44 for the low in ashburn, didn’t get into the 30s like MD
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I think we can call 97-98 an outlier at this point. I’m skeptical of us getting to a super nino. I like your blend, though… a 1.5 nino3.4 peak makes logical sense unless the -pdo flips on a dime (unlikely).
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Snowshoe web cam whiteout conditions with that heavy band streaming right in
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I totaled around 3” imby and the dot closest to me is that 3.04” in Leesburg. Pretty on target. Backyard garden is doing well.
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Makes sense. I don’t see it getting stronger than high-end moderate or low-end strong at its peak.