bluewave

A combination of Cocorahs and COOP sites. Your area does pretty well and is on par with MPO. It’s too bad they don’t have a contract snowfall observer at MPO. Since there is quite a bit of missing snowfall data there when there weren’t volunteer observers nearby in the past. Data for October 1, 2025 through April 30, 2026 Click column heading to sort ascending, click again to sort descending. LAKE HARMONY 2.4 WNW CoCoRaHS 60.4 PORTLAND 2.7 WNW CoCoRaHS 50.2 BOWMANSTOWN 3.0 WSW CoCoRaHS 41.8 PALMERTON 5.8 ENE CoCoRaHS 41.6 TATAMY 0.2 WNW CoCoRaHS 39.0 SLATINGTON 6.0 WSW CoCoRaHS 38.7 TREMONT 0.4 NNW CoCoRaHS 37.9 MARTINS CREEK COOP 37.7 SCHNECKSVILLE 1.7 ENE CoCoRaHS 37.4 NAZARETH 1.1 W CoCoRaHS 36.8 ALLENTOWN LEHIGH VALLEY INTERNATIONAL AIRPORT WBAN 35.5 Data for October 1, 2025 through April 30, 2026 Click column heading to sort ascending, click again to sort descending. RICHMONDALE 0.1 NE CoCoRaHS 59.1 MILFORD 8.7 NW CoCoRaHS 58.1 MOUNT POCONO 0.7 N CoCoRaHS 57.9 DYBERRY 2.1 W CoCoRaHS 56.7 CANADENSIS EAST COOP 56.1 PLEASANT MOUNT 1 W COOP 53.8 EAST STROUDSBURG COOP 53.5 LORDS VALLEY 2.5 SE CoCoRaHS 52.6 CANAAN - 11 CoCoRaHS 52.3 MOSCOW 4.9 E CoCoRaHS 51.5 EFFORT 3.2 NNW CoCoRaHS 46.9 PROMPTON DAM COOP 42.0 WEST HAZLETON 3.2 NNE CoCoRaHS 38.5 WILKES-BARRE/SCRANTON INTERNATIONAL AIRPORT WBAN 37.8

It’s interesting that the greatest October +EPO variation from the El Niño -EPO mean occurred in 1982 and 1997. October 2023, 2015, and 1972 were more Nino-like in that regard. But the North Pacific low is becoming more active than it has been which you pointed out in your post.

While we are still only getting a snapshot for the start of October, a +EPO is classic La Niña for October. We’ll see if heights can rebound a bit near Alaska which is more typical for El Niño. Still to early to tell where the ridge and trough locations finish for the entire month.

If the difference is mostly on clear nights with calm winds, then it could just be variations in radiational cooling. Even a very light wind can make a difference between a spot that has completely calm winds. Plus there could be some differences related to varying altitudes. Data for September 1, 2026 through September 23, 2026 Click column heading to sort ascending, click again to sort descending. PA POCONO MOUNTAINS MUNICIPAL AIRPORT WBAN 53.9 NJ HIGHLAND LAKES 1SW COOP 54.7 NJ BELVIDERE BRIDGE COOP 56.5 NJ SCHOOLEY'S MOUNTAIN 1 SW COOP 56.5 NJ SUSSEX AIRPORT WBAN 56.8 PA MARTINS CREEK COOP 57.2 PA EAST STROUDSBURG COOP 57.7 PA LEHIGHTON 1SSW COOP 57.9 PA BELTZVILLE DAM COOP 58.3 PA BLUE MARSH LAKE COOP 58.4 NJ FLEMINGTON 5 NNW COOP 58.4 NJ SOMERSET AIRPORT WBAN 58.8 PA ALLENTOWN LEHIGH VALLEY INTERNATIONAL AIRPORT WBAN 59.6 NJ PHILLIPSBURG-EASTON BRIDGE COOP 59.7 NJ BOONTON 1 SE COOP 59.7 PA SELLERSVILLE COOP 59.8 NJ AEROFLEX-ANDOVER AIRPORT WBAN 59.8 Climatological Data for Mount Pocono Area, PA (ThreadEx) - September 2026 Click column heading to sort ascending, click again to sort descending. Sum 1576 1186 - - 78 33 3.19 Average 71.6 53.9 62.8 2.3 - - - Normal 70.0 50.9 60.5 - 121 21 4.03 2026-09-01 82 65 73.5 10.0 0 9 0.10 2026-09-02 69 62 65.5 2.3 0 1 0.41 2026-09-03 81 62 71.5 8.5 0 7 0.37 2026-09-04 76 63 69.5 6.7 0 5 0.00 2026-09-05 73 57 65.0 2.5 0 0 0.00 2026-09-06 72 52 62.0 -0.2 3 0 0.00 2026-09-07 72 48 60.0 -2.0 5 0 0.00 2026-09-08 74 47 60.5 -1.2 4 0 0.00 2026-09-09 75 53 64.0 2.6 1 0 0.01 2026-09-10 78 62 70.0 8.9 0 5 0.23 2026-09-11 71 50 60.5 -0.3 4 0 0.00 2026-09-12 72 46 59.0 -1.4 6 0 T 2026-09-13 76 62 69.0 8.9 0 4 0.44 2026-09-14 65 44 54.5 -5.3 10 0 0.00 2026-09-15 67 39 53.0 -6.4 12 0 0.00 2026-09-16 77 51 64.0 4.9 1 0 0.00 2026-09-17 71 63 67.0 8.3 0 2 0.66 2026-09-18 74 54 64.0 5.6 1 0 0.00 2026-09-19 63 53 58.0 0.0 7 0 0.05 2026-09-20 64 55 59.5 1.8 5 0 0.76 2026-09-21 64 50 57.0 -0.3 8 0 0.14 2026-09-22 60 48 54.0 -2.9 11 0 0.02 2026-09-23 M M M M M M M 2026-09-24 M M M M M M M 2026-09-25 M M M M M M M 2026-09-26 M M M M M M M 2026-09-27 M M M M M M M 2026-09-28 M M M M M M M 2026-09-29 M M M M M M M 2026-09-30 M M M M M M M

It will find a way to rain on the weekend especially here on the CT Shoreline. Bridgeport has seen rain nearly every weekend going back to July. I bolded the weekend days below to show how consistent this pattern has been. Rainfall Data for IGOR I SIKORSKY MEMORIAL AIRPORT, CT Click column heading to sort ascending, click again to sort descending. 2026-07-01 1.03 2026-07-02 0.00 2026-07-03 0.00 2026-07-04 0.46 2026-07-05 0.95 2026-07-06 2.85 2026-07-07 T 2026-07-08 0.00 2026-07-09 0.00 2026-07-10 0.00 2026-07-11 0.00 2026-07-12 0.00 2026-07-13 0.00 2026-07-14 0.00 2026-07-15 0.00 2026-07-16 0.00 2026-07-17 0.00 2026-07-18 1.15 2026-07-19 0.00 2026-07-20 0.00 2026-07-21 2.59 2026-07-22 0.00 2026-07-23 0.00 2026-07-24 0.00 2026-07-25 0.00 2026-07-26 0.00 2026-07-27 0.00 2026-07-28 T 2026-07-29 2.90 2026-07-30 0.40 2026-07-31 0.00 2026-08-01 0.00 2026-08-02 0.02 2026-08-03 0.97 2026-08-04 0.00 2026-08-05 T 2026-08-06 T 2026-08-07 0.33 2026-08-08 0.05 2026-08-09 0.00 2026-08-10 0.02 2026-08-11 0.00 2026-08-12 0.00 2026-08-13 0.98 2026-08-14 0.04 2026-08-15 0.00 2026-08-16 0.03 2026-08-17 0.18 2026-08-18 T 2026-08-19 0.00 2026-08-20 1.36 2026-08-21 0.00 2026-08-22 0.02 2026-08-23 2.36 2026-08-24 T 2026-08-25 0.00 2026-08-26 0.00 2026-08-27 T 2026-08-28 T 2026-08-29 0.00 2026-08-30 0.03 2026-08-31 T 2026-09-01 1.12 2026-09-02 0.09 2026-09-03 0.11 2026-09-04 0.29 2026-09-05 0.12 2026-09-06 0.01 2026-09-07 0.00 2026-09-08 0.00 2026-09-09 0.00 2026-09-10 T 2026-09-11 0.00 2026-09-12 0.00 2026-09-13 4.25 2026-09-14 0.00 2026-09-15 0.00 2026-09-16 T 2026-09-17 T 2026-09-18 0.01 2026-09-19 0.00 2026-09-20 0.43 2026-09-21 0.01

It’s as if the spring into summer pattern was influenced by the rapid reversal in the Arctic. Notice how we developed a strong blocking pattern over the Arctic following the record early SSW back in November. This pattern locked in through the record blizzard in late February. Then rapidly reversed in March and we continue to see a deep vortex near the North Pole that we have been discussing. It’s possible that’s why the +AAM didn’t translate to the mid-latitudes this summer. Since even the strong -PDO summer of 2023 was still able to have a more Nino-like 500mb pattern. The usual developing super El Niño summer normally has a strong 500mb ridge near the North Pole over the summer.

The warmer minimums this month relative to the maximums have been driving the departures. NYC stands out at the coolest major urban station with the trees too close to the sensor giving an assist to the cooler minimums relative to the nearby urban sites. NJ and Eastern PA have been the warmest sites this month to date. New England has been the coolest this month which was further from the record ridge to our south. 9-1 to 9-22 minimum departures MPO.. +3.0° NBW…+4.4° PHL….+5.2° SMQ…+3.6° EWR….+2.6° NYC…..+0.8° LGA…..+1.4° JFK……+3.1° ISP……..+1.8° BDR…..+0.7° HPN…..+2.2°

One of reasons February 1983 had such a memorable snowstorm and 1998 didn’t was probably related to how east based 1998 was in February. 1982-1983 really didn’t become east based until after the winter was over. It was more full-basin in February compared to 1998.

Interesting timing of the release date on this new study since we could at least see our first monthly global temperatures near +2°C. https://www.nature.com/articles/s41586-026-10237-9 nature articles article Article Open access Published: 25 March 2026 Moderate global warming does not rule out extreme global climate outcomes Effectively communicating worst-case projections of global future climate—hereinafter referred to as worst-case climate outcomes—is essential for risk assessment and developing robust adaptation strategies to global warming1,2,3,4,5,6,7. Yet, current approaches for identifying spatially consistent climate outcomes are limited, with worst-case global climates typically communicated via the average of climate model projections at high global warming levels, such as 3 °C or 4 °C above the preindustrial era8,9. Here we show that extreme global climate outcomes may occur even under moderate 2 °C warming for several sectors. For droughts in global key breadbasket regions, precipitation extremes over highly populated areas and fire weather extremes across forests, global climatic impact-drivers at 2 °C of global warming may turn out to be much more extreme than model-averaged projections at 3 °C or 4 °C warming. We derive these results by identifying sector-specific, spatially consistent potential high- and low-impact global climate outcomes through spatially averaging projected sector-relevant climatic impact-drivers across key global regions. Our approach can easily be adapted to a wide range of sectors to support the improvement of sector-specific climate risk assessment and to inform climate policy. As global warming approaches 1.5 °C (ref. 10), these findings underscore the urgency of rapid mitigation to limit warming well below 2 °C, as even a 2 °C world may entail severe impacts.

It’s not so far-fetched when you consider a much weaker event in 1982-1983 lingered into June and July 1983.

It’s as if there was an underlying mechanism linking the 2023-2024 and 2026-2027 events together. Notice how Nino 1+2 never fully returned to La Niña following that event. Plus we got the Nino-like pattern in December 2025 with the small warming in Nino 1+2 and record +PNA for a December La Niña.

It would be interesting to know what the specific mechanism was that caused the WWBs to become stronger than 2023-2024 and even 1997-1998. While the CFS is outside its effective range by next June, it still has strong WWBs going. The CanSIPS indicates the same even though the SOI forecast relaxes. While it’s still too early in the game to know exactly what is happening, would be impressive if some type of bigger shift in the Pacific equatorial trade wind regime is occurring outside the usual ENSO dynamics. The WWBs north of the equator never fully relaxed in EPAC following the 2023-2024 El Niño event.

Nino 3 at +3.878 is currently showing the most anomalous warmth relative to all-time records for any time of year. The Euro and CFS both have the Nino 3 peak in December well above the previous 1997 and 1982 records. There is so much accumulated warmth on the long range CFS, that it’s showing El Niño conditions lingering into next June. https://www.cpc.ncep.noaa.gov/data/indices/ 16SEP2026 25.3 4.6 28.6 3.8 29.6 3.0 29.6 1.0 26NOV1997 25.8 3.7 28.4 3.3 28.9 2.2 29.3 0.7 29DEC1982 26.1 2.7 28.5 3.2 29.1 2.6 28.8 0.4

This will be a good test of the new google deep mind AI model which is similar to the Euro and AIFS looping back west toward the coast.

BDR had the record rainfall and onshore flow and is a good distance from NYC. So nothing artificial there. NYC is the only urban station so cool. Notice how it compares to the closest sites.