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About Inverted_Trough

  1. I lived in south central PA, at about an elevation of 1800 feet, during the 1993 Superstorm. That was the closest thing to a hurricane I've ever experienced. The howling winds broke our screen door. By far, the strongest storm I've ever been through. I doubt we'll see an atmospheric explosion like that in a long time. We were at the same location for the Blizzard of 1996...it was a prolific snow producer but the winds weren't nearly as bad.
  2. I would think the CWG station, located on a rooftop downtown, would be consistently a few degrees warmer than DCA, especially at night. The fact that it mirrors DCA closely doesn't support the 'accuracy' of DCA; if anything, it argues the opposite. In any case, over the past couple weeks DCA has been within 1 degree of IAD, so it appears they read this board and recalibrated their sensor or the transient microclimate that developed in July, now went away.
  3. I agree that this issue is pervasive. But I also think some airports are worse than others. DCA deserves all the skepticism they get. DCA has continued running 2-3 degrees hotter (for daily maxes) than all nearby ASOS sites for the past couple months. That's a stark change from the prior several months, where it was running very close to other ASOS stations for highs. It could be a microclimate that's developed over the past couple months....or maybe their sensor has "drifted" and needs recalibration. The longer this continues, the more I suspect it's the latter.
  4. Probably because it didn't feel like anything close to 100 today
  5. Was hoping to see more ASOS reports of 100+ along the DC-NYC today. Most places made it to 98 or 99. The two places that reached/broke 100 are the two usual suspects (DCA, Leesburg). The heat wasn't nothing extraordinary, but the humidity was very impressive.
  6. Thanks for this analysis, RodneyS. I said from the beginning that the sensor at DCA was a piece-of-crap. I got so much push-back from the usual suspects about how the "sensible weather has changed at both locations" and that "we need more data to make a conclusion" well, we have a year of data, and this confirms that, for 14 months, DCA's temperatures were too high, by about 2-3 degrees. That's fourteen months of the historical record that's significantly tainted. What's frustrating about it is the mentality of NWS with issues like this, where they acknowledge the historical record is flawed, but since they don't know what the "true" measurement should have been, the records stay. The same thing happened with the snowfall measurement in January: they knew the snowfall measurement was very flawed, but kept it anyway since they couldn't determine what the "true" measure should have been.
  7. I was only talking about ASOS obs. Looking at PWS is fun for us weather enthusiasts, but they're really not comparable. Looks like the high at DCA was 92. BWI was 89, IAD was 88. So the anomaly continues. Just something interesting that I've noticed recently, is all. It certainly could have a benign explanation. But I don't think they deserve the benefit of the doubt down there -- they've done nothing to earn it.
  8. Looks like DCA has gone back to its old self: having readings a few degrees higher than all airports within a 200 nm radius.
  9. If they had last year's broken thermometer, they'd undoubtedly have registered 6 or 7 90-degree days by now For those who haven't made your summer forecasts yet, take into consideration that DCA doesn't have a 'roided up thermometer anymore. I'm happy to see DCA finally being consistent with the other regional airports.
  10. It appears there's a decent chance that some of the N&W suburbs of DC will get at least some snow TV and - who knows - perhaps more than that in the next two weeks. I cringed a little bit when CWG declared winter over. It's too early to make a declarative statement like that. Historically it seems that every time we do this we see one more wintry event.
  11. Definitely 2013-14. One of the coldest winters in the eastern half of the country (although we did have one warm stretch that made our December slightly above normal). Plenty of snow after December ended. That being said, this winter was the best we could hope for in a Super Nino. With Super Ninos you have a high chance of getting practically no snow, but conversely you also have a slightly higher chance of a HECS. So with those possible outcomes in mind, we maximized.
  12. I was called a weenie yesterday for making this statement
  13. But the precip start time is a hugely important detail that the NAM has been rock-solid on. It's been bringing in the snow at around 03Z on Monday for at least the past 8 runs. Meanwhile the GFS and Euro have been holding the precip back, which is why their snow totals have been lower. In a situation like this where we know the cold is going to get scoured out, the precip start time is perhaps the most important variable in how much snow we get. And on this, the Euro caved to the NAM - big time. Yes, the Euro had the better model for the overall synoptic evolution, but weak on some details that are also very important in this particular situation.
  14. The elitists of this forum can continue their contemptuous attitude about 'weenies', but the fact is that it's the Euro that is coming around to the NAM snow totals. The globals are terrible at modeling CAD. There was an LWX guy last night on this forum who basically said the NAM is a better model for this type of situation. Anyway, back to your regularly scheduled Euro-hugging.
  15. The NAM was right, once again