Submitted by byzvntine t3_11daxs4 in pittsburgh
ktxhopem3276 t1_ja7iwsd wrote
No. Pollution from the mon valley steel mills is really bad this morning and the wind is blowing it to the west towards bethel park which usually doesn’t happen.
https://www.alleghenycounty.us/uploadedfiles/east_palestine_train_derailment.pdf
https://map.purpleair.com/1/mAQI/a10/p604800/cC0#9.49/40.348/-79.9135
Friggin t1_ja8f6cg wrote
This site makes it is easy to see wind direction. And right now, the wind is pretty much blowing directly from Clairton to BP.
Tako-Jerome t1_ja965l9 wrote
can we just acknowledge that wind blows in different directions all the time? I understand there are prevailing patterns but I feel like a lot of people on the sub lean hard into the idea that the wind never blows east in this region. It's WIND for goodness sake...
ktxhopem3276 t1_ja98rph wrote
In Pittsburgh, the wind usually blows west to east with a slight northern tilt. This is called the westerlies and only applies to certain latitudes. The us steel pollution is more likely to blow north up the mon valley and blast squirrel hill with the the odor of the steamy fart instead of blowing east up over the river valley and over Jefferson hills into bethel park,
https://www.weather.gov/source/zhu/ZHU_Training_Page/winds/Wx_Terms/Flight_Environment.htm
WikiSummarizerBot t1_ja98tj4 wrote
>Atmospheric circulation is the large-scale movement of air and together with ocean circulation is the means by which thermal energy is redistributed on the surface of the Earth. The Earth's atmospheric circulation varies from year to year, but the large-scale structure of its circulation remains fairly constant. The smaller scale weather systems – mid-latitude depressions, or tropical convective cells – occur chaotically, and long-range weather predictions of those cannot be made beyond ten days in practice, or a month in theory (see chaos theory and the butterfly effect).
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