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June 2021


Stormlover74
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Doesn’t appear the 11 year hot summer will repeat this year. This is shaping up to be more of the last four years. Humid,  high dews, drenching rains when they come and average highs around 85-90. And it’s not going to be very warm again this week, I’m seeing mostly 70s, with cool starts. 

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A number of cities reached the lower 90s this afternoon. 90° readings included: Baltimore: 93°; Harrisburg: 91°; Newark: 90°; and, Philadelphia: 90°.

90° Days for Select Cities (through June 20):

Albany: 1 (2020: 13 days; 5-Year Average: 13.6 days)
Allentown: 5 (2020: 24 days; 5-Year Average: 27.6 days)
Baltimore: 9 (2020: 46 days; 5-Year Average: 44.6 days)
Boston: 8 (2020: 14 days; 5-Year Average: 17.2 days)
Bridgeport: 2 (2020: 11 days; 5-Year Average: 13.4 days)
Burlington: 4 (2020: 20 days; 5-Year Average: 13.0 days)
Harrisburg: 6 (2020: 35 days; 5-Year Average: 30.6 days)
Hartford: 7 (2020: 39 days; 5-Year Average: 29.0 days)
Islip: 2 (2020: 8 days; 5-Year Average: 9.4 days)
New York City-JFK: 3 (2020: 12 days; 5-Year Average: 10.2 days)
New York City-LGA: 6 (2020: 34 days; 5-Year Average: 29.4 days)
New York City-NYC: 4 (2020: 20 days; 5-Year Average: 18.2 days)
Newark: 11 (2020: 31 days; 5-Year Average: 31.2 days)
Philadelphia: 8 (2020: 36 days; 5-Year Average: 34.6 days)
Scranton: 5 (2020: 25 days; 5-Year Average: 16.4 days)
Washington, DC: 7 (2020: 46 days; 5-Year Average: 50.8 days)

New York City-Newark Average: 6 (2020: 22 days)
...Expected: 7 (based on regression equation tied to JFK-LGA-EWR data)

It will likely be somewhat cooler tomorrow with a greater risk of some showers and thundershowers as Claudette passes well south of the region. The end of the week and coming weekend could be unsettled.

Out West, an extreme heatwave began to ease in the Southwest. High temperatures included:

Blythe, CA: 119°
Bullhead City, AZ: 117°
Death Valley, CA: 124° ***June record 6th consecutive 124° day***
Las Vegas: 112°
Needles, CA: 118°
Palm Springs, CA: 118°
Phoenix: 115° ***Record 6th consecutive 115° day***
Tucson: 109°

In large part on account of Phoenix's concluding extreme heat event, there is an implied 69% probability that June 2021 will become Phoenix's warmest June on record with a mean temperature above 95.0°. The existing record of 94.8° was set in 2013 and tied in 2016.

The ENSO Region 1+2 anomaly was 0.0°C and the Region 3.4 anomaly was 0.0°C for the week centered around June 9. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.48°C and the ENSO Region 3.4 anomaly has averaged -0.23°C. Neutral ENSO conditions will likely prevail into at least mid-summer.

The SOI was -16.38 today.

The preliminary Arctic Oscillation (AO) figure was +0.474 today.

On June 18 the MJO was in Phase 2 at an amplitude of 1.073 (RMM). The June 17-adjusted amplitude was 1.198 (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 81% probability that New York City will have a warmer than normal June (1991-2020 normal). June will likely finish with a mean temperature near 73.7° (1.7° above normal).

 

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90 degree days for Newark NJ since 1933...

year.....total...cons...max...total 100 days...

1933.....18.....….5.....101.....1

1934.....18...…...5.....100.....1

1935.....14...…...3...….96

1936.....22...…...5.....104.....2

1937.....22...…...5.....100.....1

1938.....18...…...3...….95

1939.....24...…...3......95

 

1940.....15...…...5......99

1941.....27...…...4......97

1942.....15...…...2......98

1943.....31...…...4.....102.....2

1944.....39...…...8.....102.....4

1945.....24...…...5...….99

1946.....11...…...3......95

1947.....22...…...4......99

1948.....26...…...6.....103.....2

1949.....36...…...8.....105.....8

 

1950.....18...…...4...….98

1951.....18...…...3...….96

1952.....31...…...6.....102.....1

1953.....32...….11.....105.....6

1954.....18...…...3.....103.....2

1955.....32...…...6.....101.....4

1956.....14...…...5...….99

1957.....28...…...5.....101.....1

1958.....21...…...3...….96

1959.....40...…...5.....100.....1

 

1960.....13...…...4...….94

1961.....34...…...4...….98

1962.....14...…...4...….98

1963.....20...…...6.....100.....1

1964.....26...…...4...….99

1965.....26...…...4...….97

1966.....33...…...5.....105.....5

1967...….7...…...3...….95

1968.....23...…...4...….98

1969.....15...…...3...….96

 

1970.....22...…...5...….94

1971.....22...…...5...….96

1972.....21...….12...….96

1973.....31...….11.....100.....1

1974.....18...…...4...….98

1975.....12...…...4...….98

1976.....14...…...3...….93

1977.....26...…...9.....102.....2

1978.....16...…...5...….98

1979.....20...…...5...….96

 

1980.....27...…...4.....101.....2

1981.....21...…...8...….98

1982.....12...…...4.....100.....1

1983.....40...…...7...….99

1984.....22...…...5...….97

1985.....11...…...3...….97

1986.....22...…...5.....100.....1

1987.....37...…...8...….98

1988.....43...….20.....101.....5

1989.....27...…...6...….99

 

1990.....26...…...4...….98

1991.....41...…...7.....102.....2

1992.....22...…...3...….98

1993.....49...….10.....105.....9

1994.....39...…...5.....102.....2

1995.....33...….12.....104.....1

1996...….9...…...3...….99

1997.....20...…...6.....101.....2

1998.....21...…...4...….98

1999.....33...…...8.....103.....3

 

2000.....16...…...4...….96

2001.....22...…...5.....105.....3

2002.....41...….10.....100.....2

2003.....20...…...5...….95

2004.....13...…...2...….97

2005.....37...…...5.....102.....3

2006.....31...….10.....101.....3

2007.....21...…...4...….97

2008.....22...…...7...….99

2009.....11...…...7...….95

 

2010.....54...….14.....103.....4

2011.....31...…...5.....108.....4

2012.....33...….11.....104.....3

2013.....25...…...7.....101.....2

2014.....15...…...3...….96

2015.....35...…...9...….98

2016.....40...…...8...….99

2017.....22...…...4...….99

2018.....36...…...6...….98

2019.....27...…...4...….99...

2020.....31.........6......96...

2021.....11.........5......97

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5 minutes ago, CIK62 said:

There goes the neighborhood............ I mean the Holiday WE.       Big change from last run.

gfs_mslp_pcpn_frzn_us_49.png

We have seen the GFS do this plenty of times in the longer range so it could be and probably is fantasy. I am more concerned with precipitation and amounts over the next 7 days more than anything else.

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53 minutes ago, Rtd208 said:

We have seen the GFS do this plenty of times in the longer range so it could be and probably is fantasy. I am more concerned with precipitation and amounts over the next 7 days more than anything else.

I cant count how many times ive seen the GFS do a hook into the coast with an offshore low. Every. Year. 

They dont call it the happy hour gfs for no reason haha

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The next 8 days are averaging 75degs.(66/83), or about Normal.

Month to date is  72.9[+2.4].          Should be about  73.5[+1.7] by the 29th.

70*(96%RH) here at 6am, overcast and some blue).           74* by Noon.         77* at 5pm.        Reached 78* around 6pm.

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This June is an unusual one for front-loaded heat.The 97° back on June 6th at Newark will be the max for the month. The remainder of the month will feature a Great Lakes Trough squeezed between the WAR and the Western Ridge.

BA2807BC-5296-422A-AD3C-B39CD2309B84.thumb.png.85434296c47fdec8aec5c6d376590e3a.png
B20C02AB-A347-45C4-A5C4-AAD78FDAB4B2.thumb.png.9e4ea91618139e4d27180723986b4a35.png

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Morning thoughts...

Today will be variably cloudy and still very warm. Temperatures will likely reach the upper 80s in most places.  A few places could reach 90°. Likely high temperatures around the region include:

New York City (Central Park): 86°

Newark: 92°

Philadelphia: 90°

Normals:

New York City: 30-Year: 81.4°; 15-Year: 81.3°

Newark: 30-Year: 83.7°; 15-Year: 83.7°

Philadelphia: 30-Year: 85.0°; 15-Year: 85.2°

Tomorrow will likely see more clouds, along with showers and thundershowers. It will be cooler.

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3 minutes ago, jfklganyc said:

78F 80% humidity. Mosquito fest. 

 

Absolutely disgusting out.

 

I’m going to sound old but I never remember a regular baseline weather like this in this area. It just makes you not want to go outside in what is supposed to be an outdoor season

The good news is the spectacular weather is coming back midweek. Dewpoints are going to fall to the bone dry 40s for wednesday and thursday. A repeat of last week with wednesday and thursday being top 10 days of the year type of weather.

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3 minutes ago, winterwx21 said:

The good news is the spectacular weather is coming back midweek. Dewpoints are going to fall to the bone dry 40s for wednesday and thursday. A repeat of last week with wednesday and thursday being top 10 days of the year type of weather.

 I don’t want to read one complain about it!! hahaha

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24 minutes ago, jfklganyc said:

78F 80% humidity. Mosquito fest. 

 

Absolutely disgusting out.

 

I’m going to sound old but I never remember a regular baseline weather like this in this area. It just makes you not want to go outside in what is supposed to be an outdoor season

No doubt about it, it's more humid in the last 10 years....70 degree dewpoints used to be rare in my part of CT-now there's a bunch every summer.

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32 minutes ago, jfklganyc said:

78F 80% humidity. Mosquito fest. 

 

Absolutely disgusting out.

 

I’m going to sound old but I never remember a regular baseline weather like this in this area. It just makes you not want to go outside in what is supposed to be an outdoor season

That’s the reason why I despise the summer and relish the cold and snow of winter. Thus my avatar and name.:snowing:

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This higher humidity is part of our shift to a humid subtropical climate. 60-80 days a year with 70° dew points used to be normal for the Delmarva to Southern NJ. Now it has moved up to the NYC area.

 

BCB74ECC-18BB-4412-B530-19ED51544CCA.thumb.jpeg.50cc4ad04c37117441c5dd1bd64517e2.jpeg

 

 

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31 minutes ago, forkyfork said:

this reminds me of july 2013

ecmwf_z500a_us_fh72-240.gif

 

10 minutes ago, dmillz25 said:

Ohhh W flow….

We had a 6 day heatwave with temps ranging anywhere from the low to upper 90's around mid month. The high temperature for the month topped out at 97 in NYC which probably means places just to the west over NE NJ topped out a bit hotter then that. 

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