wxmeddler
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Everything posted by wxmeddler
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The skew-t plotting is horrible, but it doesn't the temperature label is the red numbers between 850-900.
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This was about an hour ago out of BWI but dang is it dry up there.
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Backyard pools aren't really big enough to have a large impact on humidity / dew points unless your a few feet from it. Anything more than 15ft horizontally and 4 ft vertically won't notice. Regarding Dew Point. The humidity sensor (and therefore dew point) is the first instrument to go bad on a home weather station. The hygrometer we use on mesonet stations and at ASOS sites need frequent calibration.
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Rippage
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Heavy Snow in Silver Spring. Grill tops yes, roads no.
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Thermometers in general are pretty darn accurate to at least the nearest 1°F, even the worst ones are good to 1°C. If someone tells me, "well it was xx° at my house!" I generally believe them. The only ones I don't often trust is The bi-metallic strip coil thermometers you find on big round porch thermometers.
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Today was a day. 23 degrees, with 15G40 mph winds and snow showers / BLSN. All while needing bare hands to touch nuts and bolts for installation. Fun times!
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January Medium/Long Range: A snowy January ahead?
wxmeddler replied to mappy's topic in Mid Atlantic
slower and way more amped -
Tornado Warning for PG Co
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Some silliness trying to happen south of Oxon Hill.
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Thunder is very quality with the inversion.
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January: Medium/ Long Range: May the Force be with Us....
wxmeddler replied to Weather Will's topic in Mid Atlantic
Well since the only thing it knows is history, its learned that we generally just get screwed. -
Light onshore flow from the bay will do that
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My Prediction: Radar is gonna look worse than that surface. Even the 3KM NAM has dew pt depressions 7-10F in the AM. That said, it's gonna stick on roads that aren't treated.
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Tiny bit of a shortwave at 500 moving through with some elevated moisture levels and clouds. Might put a pause on our cooling for a 3-4 hours. Still, longest night of the year. Someone is gonna get single digits east of the Blue Ridge.
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Rates can overcome any ground temp. We just don't have the rates. Visibility hasn't dropped below a mile at DMW or FDK Edit: Which isn't surprising. Pretty abysmal thermodynamics going on.
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Parr's Ridge is probably about the only place in the state that is accumulating right now..
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Was snow when I left Silver Spring this morning, turned to rain as I went downhill into College Park. Very noticeable R/S line at ~300ft.
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We work with local entities at every level. It's hard, but worth it. Wouldn't be possible without the crew we got going.
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Snow TV achieved at 360' elevation in Silver Spring. Apparently still rain down in College Park (50').
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As an FYI for everyone using this, the snow depth sensors are only accurate to about +/- half an inch. So use your common sense if it's just starting to stick and it says zero OR it says 0.3" and it's raining. We're working on better QA/QC to try and make those kinds of errors happen less often; but as we know, snow depth is about the hardest thing to measure accurately. In addtion, it's only measuring ONE point on the ground, it doesn't know the difference between a drift and a scour.
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High water mark for me in this event is SnowTV down to the fall line, and at least an inch along Parr's Ridge.
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This morning's IAD EML, brought to you by... The Mexican High Plateau.
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Weird that there is thunder... realtime guidance has no MUCAPE. lol
