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Latest from Mount Holly on the smoke- Latest HRRR/RAP smoke guidance continues to depict that a slug of dense near surface smoke from the wildfires originating over western Ontario will spread into the region tonight. Skies will likely be quite hazy with visibilities projected to fall between 1 to 3 miles overnight, before improving some on Friday. With more of a northerly surface flow expected overnight and into early Friday, this may suppress the worst of the smoke south of our area by mid-day. However, as flow shifts to more southerly by Friday night, guidance is hinting that surface smoke may return into the weekend.
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woo heat! 95/77
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Not as hot as it could have been, but dewpoints are hideous. High of 93. Currently 92 with a DP of 78
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I think they will end up upgrading. Smoke looks pretty uniform and dense across the whole area tomorrow.
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Smoke is terrible now. Worse than yday evening and still building it seems. Nauseating.
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Mostly Code Red AQ for us tomorrow... but C and W MD are code purple https://forecast.weather.gov/product.php?site=lwx&issuedby=LWX&product=AQI
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88/73 currently, figuring the smoke cut off 5° or so.
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Just got a code purple for tomorrow up here. The Pennsylvania Department of Environmental Protection has issued a Code PURPLE Air Quality Alert for all of central Pennsylvania for Friday, July 17th. Wildfire smoke from northern Minnesota and south central Canada will continue to result in unhealthy air quality through Friday. Everyone should limit outdoor strenuous activity and exercise due to poor air quality. Sensitive groups should avoid all outdoor activity. Sensitive groups include children, the elderly, and people suffering from heart disease, asthma, or other lung diseases.
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It's all agw, nothing will stop runaway burning of the taiga
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Close to 170 now
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Central PA Summer 2026 Discussion/Obs Thread
Voyager replied to Voyager's topic in Upstate New York/Pennsylvania
On my last load it was even getting into the truck through the air conditioner. It stinks out there. Despite the smoke, I've maxed out (so far) at 89 degrees -
The past few years has been crazy with the smoke but this is the worst I’ve ever experienced. AQI in Libertyville was over 700 briefly. That’s absolutely insane. Not sure how to look up historical data on this but is this a relatively new thing within the past 5-10 years? I do not remember anything like this ever happening in the 90s - 2010s. I’m sure climate change is a contributor but what else is at play here? Why are the fires so much more intense than in decades past? Has Canada stopped doing some sort of prevention/mitigation that they used to do in the past? Have rainfall amounts dramatically decreased up there recently? Or am I simply misremembering and this has always been an issue? It feels like this only started happening maybe 5 years ago but it’s been every summer since.
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E PA/NJ/DE Summer 2026 Obs/Discussion
Voyager replied to PhiEaglesfan712's topic in Philadelphia Region
Oh boy. I run one of the water tankers, so that's a regular route to Fogelsville. I can go through Schnecksville if I need to, but our 8,000 gallon tankers are permitted, and can only use 309/100, as they weigh 100,000 lbs. I wonder if Penn Dot is going to adjust the permit route so they can keep running. -
88/77/102
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On vacation in CNJ visiting family. 4pm full sun no cloud cover. .
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Jimbo! started following July 2026 and July ‘26 obs
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Current skies in East Brunswick while on vacation. .
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ROgue storm in NJ
