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Down to 56. Feels chilly out
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Chester County PA - Analytical Battle of Actual vs. Altered Climate Data
chubbs replied to ChescoWx's topic in Climate Change
Nope. The Chesco COOPs cool significantly relative to the SE PA Division data from the PA climatologist. Regression isn't a good tool because the station changes are sudden not gradual and you picked an interval that started after the initial Coatesville move and ended before the West Chester move took full effect. If you widen the interval to 1941-1975, the difference in slope is large. Per table below, comparing the five years before the first move and the five years after the last move, the Chesco COOPs cool by 1.7F relative to the SE Pa Division. Note that the Pa SE Division includes the Chesco Coops so the two items compared are not independent. For that reason it is not surprising that the delta for the SE PA is slighly smaller than ABE. Funny seeing you try to try one dead end after the other to discredit what the the raw data from Chester County clearly shows. The 3 stations each cooled significantly after the 1945-1970 moves: first Coatesville cooled relative to Phoenixville and West Chester; then Phoenixville cooled relative to Coatesville and West Chester; and finally West Chester cools relative to Coatesville and Phoenixville. You aren't going to change what the data clearly shows. -
Absolutely comical split to basically whiff our area - light rain for 45 minutes. That has happened so much this spring and summer - not sure why but it has been happening a lot.
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It would be different in here if something exciting happened occasionally but it just doesn’t anymore. Straight up boredom around these parts for the last decade. I agree with you that the vast majority of people want yesterday’s weather, but the people in here at least want excitement. It’s been so boring that we have been left to post about rain and smoke. Occasionally a blizzard impacts southeast Mass but that’s about it.
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2026-2027 Super El Nino
bluewave replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
I am wondering if the reason that the standard 2020s summer -PDO/+AMO atmospheric state pattern has dominated the first half of summer rather than an El Niño type is due to the standing wave centered more in the Southern Hemisphere? El Niño has garnered a lot of attention, and this looks to be a large event for the reminder of the year. El Niño is related to cooler, wetter than normal summers in the US while La Niña warmer drier summers. I think the summer of 1988 cemented the impression that La Niñas support continental heat domes, heat and drought for the US. But looking at the temperature pattern across the US this summer so far it seems to be just the pattern that recent summers have settled in to regardless of the phase of ENSO. So far, in my opinion it is hard to observe the impact of El Niño on US weather just yet. -
Central PA Summer 2026 Discussion/Obs Thread
Superstorm replied to Voyager's topic in Upstate New York/Pennsylvania
Little taste of fall this morning. . -
Beautiful outside. 57F
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- Today
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Upper 50's morning of July 20th not too bad.
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While there is typically relatively high uncertainty for nascent, not well defined systems, I agree with NHC and posters here that the uncertainty here is unusually high due to the forecast coast-parallel track and the strong dependence of the track later this week on how quickly future Bertha gets organized in the next day or two. I go into the potential scenarios and all of the details here: https://hurricanehacker.substack.com/p/tropical-storm-bertha-likely-to-form?r=etzas
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Day 2 ENH up
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E PA/NJ/DE Summer 2026 Obs/Discussion
LVblizzard replied to PhiEaglesfan712's topic in Philadelphia Region
The NAM and HRRR look drastically different for Tuesday. The NAM has widely scattered storms in eastern PA while the main line stays in western PA and dissipates as it reaches this area. The HRRR plows a strong line of storms through the region on Tuesday evening. It’s a decent setup without as many fail modes as Saturday…but we still need things to come together the right way. It’s not easy to get a severe outbreak around here. -
For the first time in 7 runs, the UKMET doesn’t have a TS from this: it dissipates in the NW GOM similarly to the prior run TROPICAL DEPRESSION 02L ANALYSED POSITION : 28.0N 84.9W ATCF IDENTIFIER : AL022026 LEAD CENTRAL MAXIMUM WIND VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS) -------------- ---- -------- ------------- ------------- 0000UTC 20.07.2026 0 28.0N 84.9W 1009 23 1200UTC 20.07.2026 12 28.5N 85.5W 1008 22 0000UTC 21.07.2026 24 28.3N 85.7W 1006 27 1200UTC 21.07.2026 36 28.9N 85.6W 1005 32 0000UTC 22.07.2026 48 29.7N 86.1W 1005 31 1200UTC 22.07.2026 60 30.3N 86.8W 1008 28 0000UTC 23.07.2026 72 CEASED TRACKING NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 84 HOURS FORECAST POSITION AT T+ 84 : 28.5N 90.9W LEAD CENTRAL MAXIMUM WIND VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS) -------------- ---- -------- ------------- ------------- 1200UTC 23.07.2026 84 28.5N 90.9W 1009 25 0000UTC 24.07.2026 96 28.7N 91.7W 1010 24 1200UTC 24.07.2026 108 28.8N 93.4W 1012 28 0000UTC 25.07.2026 120 CEASED TRACKING
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Yeah July hasn't been bad other than that incredible heat wave to start the month. Pretty good that we're gonna end up with a near normal month despite that record early heat. I'm glad that we've gotten much more rain this month too.
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Oshkosh AirVenture could be interesting. Not like there’s 10s of thousands of people camping and thousands of planes that aren’t tied down properly. Hopefully they catch a break
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Right, my point is that when the heat shows up it hits hard, but it otherwise has been bearable. After the heat broke on July 5th, I've only had 2 days that were 90+ and 2 days with a low of 70+.
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I hope that TD2 now in the Gulf of Mexico tracks west right into south central Texas then gets stuck about 40 miles SW of Buda, then proceeds to pull in feeder bands of torrential training rains in off the Gulf for days. ESPECIALLY WHEN YOU CONSIDER HARDLY ANY MEANINGFUL GROUND DRYING WILL HAVE A CHANCE! Already, I have seen water catchment depressions carrying water all over the landscape!!!!!!!!!!! Yeah baby! We are going to have a BIG year for lots of rains in Texas!!!! I am a SICK PUP. But I crave a 50 degree Celsius El Nino. It's starting!
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2026-2027 Super El Nino
40/70 Benchmark replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Just brutal; the world stopped with the discontinuation of NCAR. -
2026-2027 Super El Nino
Stormchaserchuck1 replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
I am so curious to see what pattern we have over the Arctic next Summer after this Super, perhaps record breaking El Nino. The correlation with Nino 1+2 +time is fairly weak Nino 3.4 -
2026-2027 Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Thanks, Adam. For the period May-July, we’re likely headed to ~-22 avg SOI. One has to go all of the way back to 1905 to find any year at -22 or lower for May-July! Then it was -27. But that was a second year Niño (moderate). The only other one was in 1896, a strong Nino. That was at -28. Per Eric Webb’s tables, 1895-6 barely missed a low end weak Nino because there were only 4 tri-months in a row of +0.5 surrounded by +0.3s! So, 1896-7 was practically a 2nd year Nino. So, 2025-6 with 2024-5 having been La Niña is in uncharted territory going back to the mid-1800s as regards the extremely intense summer -SOI. -
We're top 5 warmest from june 1 through July 15 or half of met summer. The hot stretches have been record breaking and the smoke didn't help either. After a cooler spell in late July all signs point to a lot more record heat for early August. Humans are like goldfish when it comes to weather though
