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38 minutes ago, bluewave said:

I am wondering if it would take a scientific journal article on the cooling of NYC summer high temperatures? We have  shown on this forum how there has been a cooling since around 1990. Perhaps a well publicized scientific paper on how the quality of weather observations in our biggest city has been compromised would get the attention need for improvement. 

day time highs could be as much as four degrees cooler and two degrees warmer for the lows...Central Park went down hill when the weather service moved out of NYC 50 miles east...

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We can go 90, 93, 93 and 90 over the next 4 days starting tomorrow And some would be impressed But that would be slightly above normal for mid July  and really nice weather for outdoor activities such as beaches pools barbecues.  Most reporting stations in the  metro area will still be slightly below normal or normall after this period except for Newark.  This will not be a July to remember except for convection and rains

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10 minutes ago, binbisso said:

We can go 90, 93, 93 and 90 over the next 4 days starting tomorrow And some would be impressed But that would be slightly above normal for mid July  and really nice weather for outdoor activities such as beaches pools barbecues.  Most reporting stations in the  metro area will still be slightly below normal or normall after this period except for Newark.  This will not be a July to remember except for convection and rains

It’s not really so much about the temperature it’s more about the Humidity

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8 minutes ago, thunderbolt said:

It’s not really so much about the temperature it’s more about the Humidity

 I agree but going off of today's 12ZGFS Dew points the next 4 days starting tomorrow are between 65 to 70  at 2:00 p.m. each day.  Obviously near the water on Long Island  and coastal New Jersey will probably be several degrees higher.  not that spectacular for mid July it could be much worse

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6 minutes ago, binbisso said:

 I agree but going off of today's 12ZGFS Dew points the next 4 days starting tomorrow are between 65 to 70  at 2:00 p.m. each day.  Obviously near the water on Long Island  and coastal New Jersey will probably be several degrees higher.  not that spectacular for mid July it could be much worse

it's when it's over 70 that it feels truly awful.

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54 minutes ago, uncle W said:

day time highs could be as much as four degrees cooler and two degrees warmer for the lows...Central Park went down hill when the weather service moved out of NYC 50 miles east...

They were going to close the site in the early 1990s when the NWS moved. So maybe they made the trade off just to keep the site going. But how hard can it be to manage the tree growth around the ASOS?

https://vlab.noaa.gov/web/nws-heritage/-/100-years-of-weather-observations-at-belvedere-castle-in-central-park

http://www.weather2000.com/ASOS/NYC_ASOS.html

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51 minutes ago, bluewave said:

They were going to close the site in the early 1990s when the NWS moved. So maybe they made the trade off just to keep the site going. But how hard can it be to manage the tree growth around the ASOS?

https://vlab.noaa.gov/web/nws-heritage/-/100-years-of-weather-observations-at-belvedere-castle-in-central-park

http://www.weather2000.com/ASOS/NYC_ASOS.html

This could easily be Fixed

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Warmer air was confined to Philadelphia and southward. While Baltimore hit 96°, New York City's Central Park rose only to 72°. The warm front will gradually move northward tonight and tomorrow. As a result, tomorrow will be variably cloudy and noticeably warmer. Showers or thundershowers are possible. The remainder of the work week will see temperatures mainly in the upper 80s and lower 90s.

The second half of July and August could wind up warmer to perhaps much warmer than normal based on the evolution of the MJO. The MJO was in Phase 1 with an amplitude between 1.500 and 2.000 on multiple days during the June 20-30 period. There were 8 prior cases similar to 2021. The mean temperature for New York City during the July 16-31 period was 79.4° and the mean temperature for August was 77.1° following such cases. The 1991-20 mean temperature for July 16-31 was 77.9° and 76.0° for August. 75% of the July 16-31 cases and 88% of the August cases were warmer than the 1991-20 mean temperatures.

The ENSO Region 1+2 anomaly was +0.1°C and the Region 3.4 anomaly was 0.0°C for the week centered around July 7. For the past six weeks, the ENSO Region 1+2 anomaly has averaged 0.10°C and the ENSO Region 3.4 anomaly has averaged -0.13°C. Neutral ENSO conditions will likely prevail through August.

The SOI was +17.24 today.

The preliminary Arctic Oscillation (AO) figure was +1.369 today.

On July 11 the MJO was in Phase 2 at an amplitude of 1.391 (RMM). The July 10-adjusted amplitude was 1.382 (RMM).

In late April, the MJO moved through Phase 8 at an extreme amplitude (+3.000 or above). Only February 25, 1988 and March 18-19, 2015 had a higher amplitude at Phase 8. Both 1988 and 2015 went on to have an exceptionally warm July-August period. July-August 1988 had a mean temperature of 79.1°, which ranked 4th highest for that two-month period. July-August 2015 had a mean temperature of 78.9°, which ranked 5th highest for that two-month period. September 2015 was also the warmest September on record. The MJO's extreme passage through Phase 8 could provide the first hint of a hot summer.

Since 1896, 76% of years that saw Phoenix reach 115° or above in June, as occurred this year, had a warmer than July-August in the Middle Atlantic region. The ratio of top 30 July-August temperatures relative to bottom 30 temperatures was 6:1 in favor of the warmth. Overall, the ingredients continue to fall into place for a warmer than normal to potentially hot summer.

Based on sensitivity analysis applied to the latest guidance, there is an implied 44% probability that New York City will have a warmer than normal July (1991-2020 normal). July will likely finish with a mean temperature near 77.2° (0.3° below normal).

 

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3 hours ago, uncle W said:

2009 was a very cool Summer with the warmest part coming in August...1960 was similar...the following winters yielded over 50" of snow each...

2009, 2004 were very cool overall nothing like this year June / Jul.  Today and Jul 3 were the two miserable clunkers  bringing the averages for Jul all the way down but Wed - Sat we should notch 3  or 4 90(+)  degree days in most places (park included). Can see Thu with big over performance if we remain mostly sunny.  Despite the heavy rains (centered near NYC) I'd expect Jul to finish on the positive side >+1.5.  Its looking hotter towards the last week of the month and open August.

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1 hour ago, CIK62 said:

GFS dropping most of the upcoming rains and turning on the heat instead.     Have to figure that would happen because we are close to being the wettest ever July with 18 days to go.       

1626199200-VO9DpSmqXQI.png

Crazy model showed similar last week.  Jul 18 - Jul 22 looks near normal before that heat out west come east so perhaps its onto something from the Fri 7/23 and yonder.

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10 hours ago, binbisso said:

 Newark was the only area to hit 90゚ yesterday The 5 boroughs Long Island most of northern New Jersey lower Hudson Valley were all between 82 and 87゚.  I think we gotta give the 90゚ threshold a break.  Normal highs in the urban areas are between 86 and 88, so 90゚ is 2 to 4゚ above normal. not very special any more especially in warming climate.  It's no different in Winter when a 35゚ high is not cold or remarkable when the normal high is 38.  95゚ should be the new threshold in this warming climate.   anyway a beautiful 71゚ dew point of 67 on July 13th In this new age of global warming

Many places in Central and Northern NJ hit 90 on Monday.  New Brnswck was at 90 and has hit 90 () 17 times this year, matching or close to NE-NJ/ EWR. Of the 15 - 20 days of 90(+) this year is, many places are  exceeding prior years in places in EWR/CNJ for 95+ days as well.  I wouldnt be surprised if we see 2 or more 95+ dayes  between Wed and Sat.

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The GFS has checked itself into a CI Funhouse and is unavailable..........      Seriously it has 10 straight 90's and has  brought back the rains to boot.       EURO/CMC have 0 90's between them.

Please note the 500mb heights peaked yesterday for the next 7 days.     They will pop for a day on the weekend and range +1.3 to +2.3 sd., so 90's with favorable conditions otherwise...... is possible.

So for fun, the next 8 days are averaging 85degs.(75/95), or +7.

Month to date is  74.7[-2.5].       Should be 78.6[+1.1] by the 22nd.         Reached 85* at 6pm, after a miss by the TS

71*(96%RH) here at 6am., scuzzy look.           Reached 85* at 6pm, after a miss by the TS earlier.

 

GFS=====GoodForSh_t!

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Morning thoughts…

A steamy day is in order. It will be partly cloudy and very warm today. There could be some scattered showers or thundershowers in parts of the region.  Temperatures will likely reach the upper 80s and lower 90s in most of the region. Likely high temperatures around the region include:

New York City (Central Park): 88°

Newark: 93°

Philadelphia: 90°

Normals:

New York City: 30-Year: 85.2°; 15-Year: 86.2°

Newark: 30-Year: 87.3°; 15-Year: 88.5°

Philadelphia: 30-Year: 88.1°; 15-Year: 89.1°

Tomorrow will be partly sunny and hot.

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Looks like the usual warm spots will have chance at another heatwave next several days. The Euro has the 850s reaching +16c today and tomorrow with breaks of sun. The HRRR also shows 90° at the usual warm spots today. The Euro has 850s peaking near +18 C on Friday which support mid 90s if we can get enough sun. Humidity levels will be high with dew points back into the 70s.

Today

44DDB488-C2BB-42F2-9880-D7D6551EF741.thumb.gif.5864ffe66ae685cec8ea29555a2fe675.gif

 

Friday

B6D66E80-F235-47B7-B54D-F22D55A52FEC.thumb.png.460ae0484cc859821d226dd6b096d9d2.png

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73/73 and waiting for clouds to burn off and clear today.  That will determine how hot we can get.  Overall hot, humid and chances for storms the next 4 days through Saturday 7/17. 850 temps spike to >18c on Thu /Fri and Sat so pending on sunshine the warmer spots can touch the upper 90s.  

Cold front comes through Saturday evening and Sun (7/18) through Wed (7/21) look near normal before warming up towards the second part of next week (7/24)  and beyond as pieces of the Western Atlantic heat push east and heights are forecast to rise in the east.  Could be a very hot finish to the month.

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