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September 2025 OBS-Discussion centered NYC subforum
LibertyBell replied to wdrag's topic in New York City Metro
it's hard to block them with light pollution filters for astrophotography too. I used to use narrowband filters because sodium and mercury vapor street lamps only emit light in discrete wavelengths but broadband LED lights transmit over the entire visible spectrum =\ they also have health implications because the lights are brighter and higher frequency while sodium and mercury vapor lights are yellow and orange which are lower frequency and easier to sleep in and also dimmer. The only good thing about LED lights is that they are part of *smart lighting* so they can be turned off automatically when people are sleeping or even set automatically by a motion detector so if there are no people walking nearby they stay off and only turn on when they detect motion. I would hope they turn them off at 11 PM. -
And what would your bias is?
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E PA/NJ/DE Autumn 2025 Obs/Discussion
The Iceman replied to PhiEaglesfan712's topic in Philadelphia Region
twin fish storms? surf should be up -
looks like we have Humberto at 5pm
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Spread out over several days. Nothing too heavy. Perfect.
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thick cloud cover today has kept the high so far to 66, a nice change from the consistent 70s we've been having. not looking forwards to another run at 80 this weekend.
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63° -DZ Windows shut to keep the warmth in
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happens x we didn't even try
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Why don't you post a few of these everythings?
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64° here. Lot of manopausal posters apparently.
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Occasional Thoughts on Climate Change
donsutherland1 replied to donsutherland1's topic in Climate Change
New York City has had a string of low snowfall winters in the midst of ongoing warming. Arguably, New York City is in the early stages of a structural decline in winter snowfall. Washington, DC has already made a transition to lower snowfall. So, what might it look like if New York City has entered a transition to lower snowfall and how might the evolution unfold afterward? Early-Mid-Transition: Possibly 2020s to Mid-2030s: One can expect larger interannual swings (rising standard deviation in snowfall). Very lean winters will be mixed with some big winters, increasingly defined by fewer bigger events, as warmer air holds more water vapor. The 30-season moving average could increase, at least for a time, before turning downward. Mid-Late-Transition: Possibly Mid-2030s to Mid-2040s: As baseline winters warm further, more storms fall as rain, and snow becomes concentrated into fewer, well-timed cold shots. Interannual variability declines once precipitation falls increasingly as rain. Seasonal snowfall standard deviation flattens and then falls. New Low Snowfall Regime: Possibly Mid-2040s-Mid 2050s The mean is low and the standard deviation is lower than the volatile peak, because snow is infrequent. Big snowstorms don’t vanish outright but become rarer along the coast as rain wins more often. Regional studies for the Eastern U.S. find decreasing annual snowfall but continued potential for occasional high-impact even blockbuster events (fewer in number, increasingly conditional on strong cold air). Select Charts: 30-Season Moving Average Snowfall: The Great Rise during the first quarter of the 21st Century 30-Season Volatility: A Sharp Rise in Volatility: 30-Season Moving Average Snowfall for Biggest Daily Events: Bigger Events Grow Bigger: Percentage of Seasonal Snowfall from 10" or Above Days: Bigger Storms Contributed a Larger Share of Seasonal Snowfall (Mid-1990s-2020): 30-Season Moving Average of the Number of Measurable Snowfall Days: Fewer Days with Measurable Snowfall: In sum, some of the characteristics of an early transition toward lower structural snowfall seem to be present. More time will need to pass before one separates the long-term signal from the noise of internal variability. -
September 2025 OBS-Discussion centered NYC subforum
Sundog replied to wdrag's topic in New York City Metro
I hate the new white LED lights they put everywhere over the last 10 years. -
Yes, you're right...I got my invests mixed up
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E PA/NJ/DE Autumn 2025 Obs/Discussion
dssbss replied to PhiEaglesfan712's topic in Philadelphia Region
Surprised there isn't more chatter around here regarding the twin tropical potential. -
That may be the only thing that saves the east coast…
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September 2025 OBS-Discussion centered NYC subforum
LibertyBell replied to wdrag's topic in New York City Metro
yeah suburban street lights suck too, especially the new LED broadband lights they've installed. Just using myself as an example I sleep at least 2-3 hours more when I'm in the Poconos and it's pitch black there no noise no lights. (Not only are there no street lights there, there aren't even any traffic lights lol.) -
Disagree. 93L is far enough east it would’ve always been caught in that weakness and shipped out. 94L is exactly the kind of system that could threaten the EC this year—weak and buried in the Bahamas before finding itself potentially captured by a cutoff or blocked by an over the top ridge. We should all be selling the ops but the ensembles have been clear this is something to watch for the east coast if not a bona fide threat, which I’m not ready to call yet. NOAA is taking it seriously—we’re already getting key messages and recon out there. Edit: usual caveats for New England—meh, this no chance here, don’t waste your time.
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September 2025 OBS-Discussion centered NYC subforum
LibertyBell replied to wdrag's topic in New York City Metro
lol you sound like me at least there are less planes flying over here late at night. it starts up around 5 am though -
September 2025 OBS-Discussion centered NYC subforum
MJO812 replied to wdrag's topic in New York City Metro
I also have them in my room. They are great . -
September 2025 OBS-Discussion centered NYC subforum
LibertyBell replied to wdrag's topic in New York City Metro
I do too, it's better on Long Island. In Manhattan it might not be enough. I agree with you about smart city planning being ideal. From my previous post: The ideal solution (better than either traffic or mass transit) is to walk or bike ride. Maybe that's what PSV means? Make our cities more walkable and amenable to bike riding like they do in Europe? Their food is far healthier too (far less processed). -
September 2025 OBS-Discussion centered NYC subforum
MJO812 replied to wdrag's topic in New York City Metro
Brooklyn might be worse -
September 2025 OBS-Discussion centered NYC subforum
LibertyBell replied to wdrag's topic in New York City Metro
this assumes that people aren't driving, unfortunately too many people drive through the city and the NO2 pollution from that makes asthma rates worse. The ideal solution (better than either traffic or mass transit) is to walk or bike ride. Maybe that's what PSV means? Make our cities more walkable and amenable to bike riding like they do in Europe? Their food is far healthier too (far less processed).