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I have found something interesting, since the 2012, N. Hemisphere Arctic ice melt low, the Summer sea-level pressure state has been reversing the following Winter. In the 2025-2026 ENSO thread, I used this to predict a -AO for Winter 25-26. Here was May-Sept 2025 SLP anomaly: Analogs [10] Following Winter of 10 analogs (+7 months) Winter 25-26: Something to watch this coming warm season... do we get -SLP or +SLP anomaly over the Arctic (60-90N). Since 2012, -SLP has been followed by following cold season -AO, and +SLP has been followed by following cold season +AO. We are currently going more -SLP over the Arctic: Sorry for the multi-posting, each post is an individuated point that can be responded to by itself.
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-PDO numbers this decade.. 77 straight months of negative: Will warm ENSO break this? May 2026 -1.60 April 2026 -1.28 March 2026 -1.18 February 2026 -0.79 January 2026 -0.87 December 2025 -0.39 November 2025 -1.02 October 2025 -1.82 September 2025 -1.71 August 2025 -2.54 July 2025 -3.83 June 2025 -2.62 May 2025 -1.84 April 2025 -1.07 March 2025 -0.81 February 2025 -1.20 January 2025 -0.97 December 2024 -1.57 November 2024 -2.58 October 2024 -3.24 September 2024 -3.10 August 2024 -2.37 July 2024 -2.62 June 2024 -2.93 May 2024 -3.01 April 2024 -1.99 March 2024 -1.27 February 2024 -1.33 January 2024 -1.48 December 2023 -1.20 November 2023 -1.16 October 2023 -1.88 September 2023 -2.52 August 2023 -2.02 July 2023 -2.44 June 2023 -2.67 May 2023 -2.46 April 2023 -3.13 March 2023 -2.50 February 2023 -1.79 January 2023 -1.24 December 2022 -1.85 November 2022 -1.83 October 2022 -1.48 September 2022 -1.78 August 2022 -1.78 July 2022 -2.44 June 2022 -1.42 May 2022 -2.44 April 2022 -2.19 March 2022 -1.63 February 2022 -1.72 January 2022 -2.22 December 2021 -2.47 November 2021 -2.37 October 2021 -2.69 September 2021 -1.70 August 2021 -0.84 July 2021 -1.93 June 2021 -1.89 May 2021 -2.33 April 2021 -1.77 March 2021 -1.70 February 2021 -1.29 January 2021 -0.73 December 2020 -0.92 November 2020 -1.23 October 2020 -0.29 September 2020 -0.75 August 2020 -0.85 July 2020 -0.77 June 2020 -0.86 May 2020 -0.68 April 2020 -1.32 March 2020 -1.68 February 2020 -1.12 January 2020 -0.79 Pacific Decadal Oscillation (PDO) | National Centers for Environmental Information (NCEI) Stronger El Nino/-PDO Winters are: 65-66, 72-73, 23-24 ^And 65-66 was cold because of -NAO, something that isn't as connected to the PDO (more random). La Nina/+PDO Winters are: 83-84, 84-85, 95-96
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Tough but fair 18z guidance relatively aggressive with convection early sat, time to lock in
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With 2 colder than average Winters (DJF) in the Northeast (24-25 and 25-26), I was wondering, do we have a higher chance of seeing a cold El Nino Winter next year (26-27)?? (3rd consecutive cold Winter?) Since 1950, I found 10 analogs where there were 2 cold Northeast, US Winter's before an El Nino. That is extremely high. It means 38% of El Nino's were preceded by 2 cold Northeast, US Winters. The odds of one is about 40%, using my guidelines (40-20-40), odds of two 20%, so about +2std, but limited examples [28]. So check it out.. This is the DJF before an El Nino the following year: Winter 25-26: DJF Air Temps 11 months before an El Nino: Winter 25-26: The pre-El Nino composite was a great predictor this past Winter, even outscoring forecasts such as the CPC. Now what did the following, 3rd Winter, El Nino Winter, look like? ^About your average El Nino composite. I'm a little surprised the map isn't skewed colder. The precip is also surprisingly below average in the Mid Atlantic, but this is just based on 10 examples: So history says that 2 cold Northeast, US Winters followed by an El Nino does not lean cold for the 3rd, El Nino, Winter, Disqualifying my thought. It's closer to 50/50, just based on history.
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I find this to be an good coincidence -- I say coincidence because the QBO is a Stratosphere index. But since the QBO 30mb data started in 1979, every single December (6) in QBO >+5 and ENSO +El Nino -- has had the same anomaly temperature pattern. There is a >90% chance this will be this upcoming December (+QBO/+ENSO). Not only is every map the same, but they are strong anomalies in the Northeast and Great Lakes in every example. Will be interesting to see what happens in December 2026: Following January in +QBO/El Nino: The map skews warmer for El Nino because the +QBO state favors a stronger Stratosphere Polar Vortex. This has correlation with +AO in the +0-day. Not a definite constant, but a higher average in the mean (deep 10mb SPV) -- El nino by itself correlates with more High pressure in the Stratosphere. +QBO Winter upcoming.
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If I made the thread, Super Nino would be in the first post lol
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Tomorrow and Saturday will be very warm days with highs in the upper 80s and lower 90s. Should Central Park reach 90°, 2026 would become the first year on record that New York City had a high of 80° or above in March and highs of 90° or above in April, May, and June. Saturday will remain warm before somewhat cooler air arrives to conclude the weekend. Some showers or thundershowers are possible early Sunday. Cooler conditions early next week will give way to a return to above normal temperatures for the remainder of the week. The ENSO Region 1+2 anomaly was +2.2°C and the Region 3.4 anomaly was +1.0°C for the week centered around May 27. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +1.80°C and the ENSO Region 3.4 anomaly has averaged +0.90°C. The ongoing El Niño will continue to strengthen through the summer. The SOI was -35.29 today. The preliminary Arctic Oscillation (AO) was +1.920 today.
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I was told you were in South Weymouth.
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We are still contending with a strongly negative PDO. We have seen this in action, as developing Nino's usually have a -NPH (North Pacific High) correlation May-June, and the opposite has happened so far this year. (I would do 500mb maps, but the CDC has discontinued that site).
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CANSIPS has a cold bias N. Atlantic SSTAs May-September are a great predictor of coming Winter NAO state. It has started to go more negative over the past few days
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IZG did for sure
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It'd be nice to get one of those tropical days where downpours with lightning form at like 12 PM and we get a few rounds of lightning for the rest of the day. Top it off with a distant lightning show after dark. maybe in july
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- rugpull central
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I asked for 2 shots. One for me and one for you.
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There was a look on some of the reliable models of the storms ushering in a pattern change. It’s just that after the storm hit it got can kicked and then collapsed. I addressed that in a follow up thread.
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Junorch obs and discussion 2026
CT Valley Snowman replied to Damage In Tolland's topic in New England
Did any official stations hit 90? Didn't make it here with the cirrus. No heatwave this go around. -
Why do you do this?
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I changed the tags the other day, maybe replace the first part of a variation of that. I would’ve done so if I had the ability to.
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Junorch obs and discussion 2026
Damage In Tolland replied to Damage In Tolland's topic in New England
Well to be more specific you’re in S Wey . Just so he is clear -
Even so, I have to get used to it. Feels pretty hot at first. I like to enjoy things about every season but summer still is my least favorite.
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I closely observe the Drought Monitor weekly and have given credibility to its assessment until May 200% of rainfall in Augusta and the 310 ft. water table returning from - 15 to - 2. This Drought Monitor measure is completely wrapped up in government bureaucracy as the Va. DEQ said last week that the drought continues because "groundwater levels are much below normal". What a joke! They have increased from minus 21 in February to minus 2 in May. I can't rely on the Drought Monitor or DEQ.... I will rely on my own assessments in the future. Thanks Very Much for your interest!!!
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He made the thread ahead of the last rain event, but there was already a Med/LR discussion thread. This one got pinned after that, which really didn't make sense as there was no hint of heavy rain going forward, and there still isnt.
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Yeah humidity bottomed out at 16% here this afternoon with a high temp of 88°.
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Philly news tonight with voluntary restrictions in certain areas.
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- rugpull central
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F ing Omen title. Has brought nothing but bad luck, bad timing and zero rain.
- 129 replies
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