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8 hours ago, bluewave said:

I am hoping we can have some blocking carryover into the winter like some of the other years with near record summer blocking. But it’s tough to know for sure until the winter actually starts.

 

93985A45-3DCE-4DF0-B4A3-EE920E43D635.gif.dfccd92db0b2a3d7c3af5ec343935bca.gif

Our summer based on that chart should have been much cooler than what we're seeing

It just goes to show how much we've warmed over the past decade. 

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A prolonged stretch of cooler than normal readings will continue through at least the weekend.

In the long-range, it remains more likely than not that ridges will wax and wane over the central and southern U.S., producing more heat in areas that have seen a lot of it this summer. If that idea holds, the Northeast will likely only see some short-lived periods of warmer or much warmer than normal temperatures through at least the first week or two of September.

The ENSO Region 1+2 anomaly was +3.3°C and the Region 3.4 anomaly was +1.3°C for the week centered around August 16. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +3.15°C and the ENSO Region 3.4 anomaly has averaged +1.17°C. El Niño conditions have developed and will likely continue to strengthen through at least the summer. The probability of an East-based El Niño event has increased.

The SOI was -14.02 today.

The preliminary Arctic Oscillation (AO) was -0.452 today.

On August 20 the MJO was in Phase 1 at an amplitude of 1.747 (RMM). The August 19-adjusted amplitude was 1.560 (RMM).

Based on sensitivity analysis applied to the latest guidance, there is an implied 83% probability that New York City will have a cooler than normal August (1991-2020 normal). August will likely finish with a mean temperature near 74.6° (1.5° below normal).

 

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1 hour ago, SnoSki14 said:

Are we done with 90s this year? Certainly seems possible for NYC at least. 

Would like to see a comparison of this year vs last

Seeing as Boston has only had 4 days of 90s when their average is 15, I'd say we are in a similar boat. Our first below average JJA in some time if I am not mistaken. 

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On track for only the 9th August at LGA with no 90° days.

 

Time Series Summary for LAGUARDIA AIRPORT, NY - Month of Aug
Click column heading to sort ascending, click again to sort descending.
Rank
Year
Number of Days Max Temperature >= 90 
Missing Count
1 2023 0 9
- 2008 0 0
- 1986 0 0
- 1982 0 0
- 1972 0 0
- 1967 0 0
- 1963 0 0
- 1950 0 0
- 1946 0 0
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