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May 2021


bluewave
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2 hours ago, bluewave said:

Since Memorial Day moved to the last Monday in May in 1971, the closest Newark came was 2003. It had a high in the 50s on Saturday and Monday. The high made it to 61 on Sunday. So two out of the three extended weekend days maxed out in the 50s. But the high for May 2003 at Newark only made it to 81 with a -4.4 monthly cold departure. This is much different from the high of 96 this May and +2.6 so far. So a continuation of the big weather swings that have become common in recent years.

Newark

Sat…..5-24-03….58/52

Sun….5-25-03…..61/53

Mon..5-26-03…..58/51

Newark was such and outlier with 94 while NYC and LGA were eight degrees cooler...

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4 hours ago, uncle W said:

Newark was such and outlier with 94 while NYC and LGA were eight degrees cooler...

Wind direction is everything in the NY Bight. This is especially true when our biggest airports are right on the water. The 22nd was an extremely dry offshore flow heat event. So both EWR and JFK were located in the warmest zones. Also notice how the NW flow off the East River kept LGA cooler than both the Astoria and Corona new micronet stations. The ASOS at LGA is in the extreme NW corner of the airport near the water. The JFK ASOS is located in a marshy area in the eastern edge of the airport. Not far from North Woodmere in the five towns section of Long Island. Since the sea breeze was so strong yesterday east of NYC, EWR and the new fresh kills station were the warmest in the region. All the Newark Bay Breeze days last few summers allowed LGA to beat EWR on numerous occasions. 

5-26 maximum temperatures 

EWR…..94

Fresh Kills….92

Astoria……….87

Corona………86

LGA….86

Brownsville…..81

South Ozone Park…79

JFK…75

 

5-22

EWR…..96

JFK…….94

Brownsville….94

South Ozone Park….93

Corona……..92

Astoria……..91

Fresh Kills….91

LGA…..88

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Cooler air will push into the region overnight. Much of the remainder of the month will likely see cooler to occasionally much cooler than normal conditions.

The Memorial Day weekend will very likely be unsettled and cooler. Periods of rain are possible. Rainfall will likely total 0.50"-1.50" with some locally higher amounts during the weekend.

The first 7-10 days of June could start off warmer than normal. The MJO's passage through Phase 4 at an amplitude of 1.500 or above during the May 15-25 period coupled with ENSO Region 1+2 temperature anomalies above -1.0°C and below +1.0°C, as has been the case this year, has typically seen warmth in the East during the first 10 days of June. Cooler conditions typically prevailed when the ENSO Region 1+2 anomalies were outside that range. The latest EPS guidance favors warmer than normal conditions in the Northeast through at least the first 10 days of June.

Neutral ENSO conditions have now developed. The ENSO Region 1+2 anomaly was -0.7°C and the Region 3.4 anomaly was -0.2°C for the week centered around May 19. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.78°C and the ENSO Region 3.4 anomaly has averaged -0.33°C. Neutral ENSO conditions will likely prevail into at least mid-summer.

The SOI was -5.04 today.

The preliminary Arctic Oscillation (AO) figure was +0.016 today.

On May 25 the MJO was in Phase 5 at an amplitude of 1.020 (RMM). The May 24-adjusted amplitude was 1.576 (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.

Based on sensitivity analysis applied to the latest guidance, there is an implied 65% probability that New York City will have a warmer than normal May (1991-2020 normal). May will likely finish with a mean temperature near 63.6° (0.4° above normal).

 

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53 minutes ago, RippleEffect said:

Hi long time lurker here. Been waiting for some nice weather, kinda sad this weekend is looking crappy, hope everyone’s doing well my name is Tony 

Thank you Tony, I see you received your first Weenie, congratulations. If you think ‘grilling’ is a summer pastime just wait until winter with a frozen threat on the horizon. As always ....

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2 hours ago, thunderbolt said:

Welcome  Tony

 

2 hours ago, rclab said:

Thank you Tony, I see you received your first Weenie, congratulations. If you think ‘grilling’ is a summer pastime just wait until winter with a frozen threat on the horizon. As always ....

Just look at the Southern Hemisphere weather it’s coming down

BDDD7F3C-7C80-4837-B129-5995B7EE6F31.jpeg

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15 hours ago, donsutherland1 said:

Morning thoughts...

Today will be partly to mostly sunny and warm. A shower or thundershower is possible. Temperatures will likely top out in the upper 80s and lower 90s in most of the region. Likely high temperatures around the region include:

New York City (Central Park): 83°

Newark: 86°

Philadelphia: 84°

Tomorrow will be mainly cloudy with showers and periods of rain. It will be much cooler.

Good forecast except NYC flat lined at 81 from 2pm on. Sunny skies, no sea breeze, only station to do so. Have seen this frequently in past years.

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The last 4 days of May are averaging 56degs., or -11degs.

Month to date is 64.2[+1.5].         May should end at 62.8[-0.4].

GFS still launching HW on June 6th until.........................?

61*(50%RH) here at 6am, scattered overcast.    63* at 7am.     Up to 68* around 11am.        Down to 60* with drizzle/breeze by 3pm.         56* at 7pm.        54* at 8pm         52* at 10pm.

 

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Morning thoughts...

Clouds will increase. Rain will arrive this afternoon. Some of the rain could be heavy especially overnight. A general 1.00”-3.00” rainfall is likely into Sunday morning. Temperatures will likely top out in the middle and upper 60s before the onset of the rain. Likely high temperatures around the region include:

New York City (Central Park): 66°

Newark: 69°

Philadelphia: 69°

Tomorrow will be mainly cloudy with showers and periods of rain. It will be unseasonably cool.

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