May 2021

[uncle W]

Central Park is 130ft above sea level...LGA is about 10ft above sea level...Central park usually gets wind thats slightly up slope...LGA is on the down slope if any...a sw wind has to travel over a built up Brooklyn and Queens and has little greenery near the probes and gets some ocasional Jet fumes...a park is going to be cooler in the heat than a street corner in Manhattan or Queens...

[SACRUS]

 

5/21

New Brnswck: 86
EWR: 83
TTN: 83
PHL: 83
TEB: 81
NYC: 79
LGA: 77
BLM: 77
JFK: 75
ACY: 75
ISP: 71

[uncle W]

70 degree minimums in NYC are on the rise...the 1960's averaged 24 such days while the 2010's averaged 47...a wopping 10 more than the second placed 1980's...2020.had 58 making the long term average a little higher...

year total min 70+ consecutive 70+

1930..........26............8

1931..........34............7

1932..........25............6

1933..........33............6

1934..........26............4

1935..........29..........11

1936..........20............4

1937..........28............6

1938..........34..........12

1939..........44..........13.......29.9.........7.7

1940..........24............8

1941..........27............6

1942..........20............4

1943..........30............4

1944..........41..........14

1945..........29............4

1946..........11............3

1947..........30............5

1948..........29............6

1949..........43..........10......32.4........6.4

1950..........13............5

1951..........23............7

1952..........38..........12

1953..........34..........10

1954..........18............5

1955..........45..........13

1956..........20............5

1957..........31............5

1958..........26............4

1959..........46..........10......29.4.......7.3

1960..........20............5

1961..........42............9

1962............8............2

1963..........14............5

1964..........19............4

1965..........17............4

1966..........40..........11

1967..........17............5

1968..........29............6

1969..........33............6......23.9.......5.7

1970..........37..........10

1971..........45............9

1972..........30..........15

1973..........37..........11

1974..........26............3

1975..........23..........12

1976..........24............4

1977..........37............9

1978..........31..........13

1979..........42..........17......33.2......10.3

1980..........52..........22

1981..........39............8

1982..........30..........12

1983..........45..........13

1984..........40..........16

1985..........34............6

1986..........31............4

1987..........32............7

1988..........42..........21

1989..........28............5......37.3.....11.4

1990..........32............8

1991..........31............7

1992..........14............4

1993..........35..........10

1994..........35............9

1995..........39..........18

1996..........22............5

1997..........27............8

1998..........39..........11

1999..........45..........13......31.9.......9.3

2000..........22............4

2001..........30............9

2002..........43............9

2003..........33..........15

2004..........28............6

2005..........60..........14

2006..........41..........15

2007..........35............8

2008..........35............8

2009..........18............5.....34.5.......9.3

2010..........54..........22

2011..........40............9

2012..........47..........10

2013..........51..........19

2014...……33...……..9

2015..........56............9

2016..........51..........16

2017..........44............7.....

2018..........55..........18

2019...…...43...……...7.....47.4.....12.6

2020.........58..........20....

 

1872...…...41...……16

1876..........46..........14

1906..........61..........17

1908..........54..........16

[LibertyBell]

4 hours ago, etudiant said:

striking how LGA has so many more 90* days than NYC.  Is that because the NYC temperature is taken in Central Park, where the greenery tempers the heat?

they decoupled after the 90s

[LibertyBell]

2 hours ago, uncle W said:

70 degree minimums in NYC are on the rise...the 1960's averaged 24 such days while the 2010's averaged 47...a wopping 10 more than the second placed 1980's...2020.had 58 making the long term average a little higher...

year total min 70+ consecutive 70+

1930..........26............8

1931..........34............7

1932..........25............6

1933..........33............6

1934..........26............4

1935..........29..........11

1936..........20............4

1937..........28............6

1938..........34..........12

1939..........44..........13.......29.9.........7.7

1940..........24............8

1941..........27............6

1942..........20............4

1943..........30............4

1944..........41..........14

1945..........29............4

1946..........11............3

1947..........30............5

1948..........29............6

1949..........43..........10......32.4........6.4

1950..........13............5

1951..........23............7

1952..........38..........12

1953..........34..........10

1954..........18............5

1955..........45..........13

1956..........20............5

1957..........31............5

1958..........26............4

1959..........46..........10......29.4.......7.3

1960..........20............5

1961..........42............9

1962............8............2

1963..........14............5

1964..........19............4

1965..........17............4

1966..........40..........11

1967..........17............5

1968..........29............6

1969..........33............6......23.9.......5.7

1970..........37..........10

1971..........45............9

1972..........30..........15

1973..........37..........11

1974..........26............3

1975..........23..........12

1976..........24............4

1977..........37............9

1978..........31..........13

1979..........42..........17......33.2......10.3

1980..........52..........22

1981..........39............8

1982..........30..........12

1983..........45..........13

1984..........40..........16

1985..........34............6

1986..........31............4

1987..........32............7

1988..........42..........21

1989..........28............5......37.3.....11.4

1990..........32............8

1991..........31............7

1992..........14............4

1993..........35..........10

1994..........35............9

1995..........39..........18

1996..........22............5

1997..........27............8

1998..........39..........11

1999..........45..........13......31.9.......9.3

2000..........22............4

2001..........30............9

2002..........43............9

2003..........33..........15

2004..........28............6

2005..........60..........14

2006..........41..........15

2007..........35............8

2008..........35............8

2009..........18............5.....34.5.......9.3

2010..........54..........22

2011..........40............9

2012..........47..........10

2013..........51..........19

2014...……33...……..9

2015..........56............9

2016..........51..........16

2017..........44............7.....

2018..........55..........18

2019...…...43...……...7.....47.4.....12.6

2020.........58..........20....

 

1872...…...41...……16

1876..........46..........14

1906..........61..........17

1908..........54..........16

Uncle do you have figures for 90 degree days?  I feel like we had the most during the 90s....

[LibertyBell]

wow what the heck was going on in 1906?  well besides the San Francisco earthquake of course...and 1908 was almost as bad!

do you have 90 degree day figures for those years?

 

[CIK62]

The next 8 days are averaging 70degs.(60/80), or +4.0 

Month to date is  61.9[+0.1].         Should be 64.1[+1.2] by the 29th.

May 26th continues at 90,{another T PopDrop}---, probably  20 straight runs.     No rain for another 5 days, despite TS chances before that.

64*[65%RH) here at 6am, thin overcast.       73* by 9am and more importantly, the RH has hardly moved down(60%RH) now.        77* by 10am.         80*(48%RH) at 11am.        86*(39%RH)  by 1pm.           88*(33%RH) at 3pm----4pm.

[donsutherland1]

Morning thoughts...

Today will be partly sunny and hot. Temperatures will likely reach the upper 80s to lower 90s in most of the region. A few areas could experience an afternoon or evening thundershower. Likely high temperatures around the region include:

New York City (Central Park): 90°

Newark: 93°

Philadelphia: 91°

Tomorrow will be another partly sunny and very warm day.

[bluewave]

12 hours ago, LibertyBell said:

I thought with the extended dry period we've had that would make the inland high more likely?  What's been causing the high to set up over new england anyway?

 

Slowing AMOC and rapidly warming Gulf Of Maine have gone together with the anomalous ridging over New England and the Canadian Maritimes. So I guess that it’s no surprise that the seasonal models have a similar pattern this summer. It will be interesting to see if we can make it four summers in a row.

 

 

 

[uncle W]

7 hours ago, LibertyBell said:

wow what the heck was going on in 1906?  well besides the San Francisco earthquake of course...and 1908 was almost as bad!

do you have 90 degree day figures for those years?

 

I think 1906 and 1908 temps were effected by smoke from burning stuff which was done alot back then...

[SACRUS]

 

Some clouds to deal with otherwise off to the races and some 90s in the warmer spots and perhaps even in to NYC / LGA.  Hotter tomorrow with low to perhaps mid 90s 850 temps >15C and recent dryness could see temps accel past guidance.   The question is how low does Monday go vs prior day (Sunday) high.  Thinking a 92 / 68 split in Newark highs SUn / Mon.

Tuesday inland spots should get back to 80 before the peak of this heat arrives Wed and Thu both days 90s widespread.  The holiday weekend looks warm but showers and clouds could be present Sat and Sun before more warmth on Monday 5/31.  Longer range models rebuild the ridge with heights soaring around Jun 2.  Again this looks more overall warmth to hot broken by transient cool downs / wind shifts.  More humidity in june. 

[bluewave]

39 minutes ago, uncle W said:

I think 1906 and 1908 temps were effected by smoke from burning stuff which was done alot back then...

Higher population in Manhattan during those years than today. 
 

the Manhattan island population in 1900 was even larger (1.85 million persons in 1900) than today 1.54 million in 2000), due to turn-of-century immigration. So to the extent that population is an indicator of UHI strength, the relative 1900 UHI magnitude may be partial- ly understandable.

http://www.theurbanclimatologist.com/uploads/4/4/2/5/44250401/gaffinetal2008nycuhiandtemptrends.pdf

[donsutherland1]

8 hours ago, LibertyBell said:

wow what the heck was going on in 1906?  well besides the San Francisco earthquake of course...and 1908 was almost as bad!

do you have 90 degree day figures for those years?

 

1906 9 days

1908 12 days

[Rtd208]

Temp already up to 77 here.

90's seem like a lock for today

[uncle W]

1 hour ago, bluewave said:

Higher population in Manhattan during those years than today. 
 

the Manhattan island population in 1900 was even larger (1.85 million persons in 1900) than today 1.54 million in 2000), due to turn-of-century immigration. So to the extent that population is an indicator of UHI strength, the relative 1900 UHI magnitude may be partial- ly understandable.

http://www.theurbanclimatologist.com/uploads/4/4/2/5/44250401/gaffinetal2008nycuhiandtemptrends.pdf

I read something that said squatters were living in Central Park in shacks and they burned most of their garbage...must have been a lovely place back then...

[uncle W]

back in 1906 and 1908 NYC had many summer days with a temperature range less than 10 degrees without any rain...7/23/06 had a max of 87 and a min of 80...8/6/08 had the same max/min 87/80...it must have been very smoky and it blocked the sun enough to keep max temps down and min temps up...

[Rjay]

78 in Merrick

75 in Holbrook 

[Rtd208]

Current temp 83/DP 61

[lee59]

57 degree low here last night, already up to 80.

[SACRUS]

Up to 84 with the high wispy clouds.  

 

Dewpoint to 62

[SACRUS]

11AM Roundup

EWR: 88
New Brunswck:  85
TEB: 84
ACY: 84
BLM: 84
PHL: 83
TTN: 81
NYC: 81
JFK: 80
ISP: 78
LGA: 78

[CIK62]

It looked like this a short time ago.        Heat has keyed into NJ, when viewed in a larger coverage map, not shown here.          I am at 82* at 11:30am, and I am 1500" from the ocean.

[bluewave]

91° at Newark with the warm downslope flow.

[Cfa]

86 here, heat index of 88. Today’s the first time the heat index has been higher than the temperature.

[crossbowftw3]

Significantly more cloudiness today. Despite this, slightly more humid at 83/60 right now.

[psv88]

88 now in nw Suffolk, it’s hot

[bluewave]

Easy to beat guidance with such dry conditions.

 

Newark Liberty CLOUDY    92  52  25 NW13G21   

[forkyfork]

the park is such a joke

[lee59]

Ana has been named near Bermuda it is barely a subtropical storm. If they want to now name subtropical storms that is fine, however, when they make comparison to years past, they should really have an asterisk.

[STORMANLI]

90°