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The next 8 days are averaging 75degs.(67/83), or about +4.0.       But the next 5 days alone are averaging 81(73/91), a good +10.0.

Models look wetter and attendant T's were lower.     GFS still brings heat back to start second half of month.

I reached 91* yesterday at 6pm.       Sea breeze kept it to the low 80's until 3pm.

(was still 81* here at midnight)74*(73%RH) here at 6am, hazy blue.        80* by 10:30am.         T went nowhere on the beach with a southerly wind today.   Basically a high of 82* during beach hours.         Reached 85*  at 7:30pm, however.

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The new NYC micronet stations show how representative the EWR and LGA temperatures are of local NYC neighborhoods. 
 

https://www2.nysmesonet.org/networks/nyc

EWR and LGA high temperatures vs ground level NYC micronet stations

EWR…95

LGA….94

Astoria….93

Bensonhurst…94

Brownsville….93

Corona….95

Ozone Park….94

Queensbridge….94

Fresh Kills….93

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9 minutes ago, bluewave said:

The new NYC micronet stations show how representative the EWR and LGA temperatures are of local NYC neighborhoods. 
 

https://www2.nysmesonet.org/networks/nyc

EWR and LGA high temperatures vs ground level NYC micronet stations

EWR…95

LGA….94

Astoria….93

Bensonhurst…94

Brownsville….93

Corona….95

Ozone Park….94

Queensbridge….94

Fresh Kills….93

The Fresh Kills ( Staten Island ) station is just down the road from my station and does match up pretty well with my highs. 

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Morning thoughts...

Today will be mostly sunny and hot. Temperatures will likely top out in the upper 80 and lower 90s in much of the region. Likely high temperatures around the region include:

New York City (Central Park): 91°

Newark: 98°

Philadelphia: 95°

Tomorrow will be partly sunny and hot. Temperatures will likely run a few degrees cooler than today.

The following record high minimum temperatures could be tied or broken today:

Bridgeport: 65°, 2016, 2019 and 2020; Low through 8 am: 65°

Islip: 66°, 2016 and 2019; Low through 8 am: 66°

New York City-JFK: 67°, 1988 and 2016; Low through 8 am: 69°

New York City-LGA: 72°, 1966; Low through 8 am: 76°

Newark: 71°, 1981 and 2020; Low through 8 am: 71°

White Plains: 68°, 1966; Low through 8 am: 68°

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37 minutes ago, bluewave said:

The new NYC micronet stations show how representative the EWR and LGA temperatures are of local NYC neighborhoods. 
 

https://www2.nysmesonet.org/networks/nyc

EWR and LGA high temperatures vs ground level NYC micronet stations

EWR…95

LGA….94

Astoria….93

Bensonhurst…94

Brownsville….93

Corona….95

Ozone Park….94

Queensbridge….94

Fresh Kills….93

Good morning BW. Perhaps the CPK  readings are more accurate for the flora of New Amsterdam. As always …..

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14 hours ago, bluewave said:

https://www.weather.gov/coop/sitingpolicy2

Proper Siting

The Coop network has provided climate and weather data for over 100 years. Consistency of the measurements is an attribute of the network, and it has been maintained by rare and/or gradual change, and established standards for exposure, of instruments over the life of the network. In order to preserve the integrity of the network, NWS has established standards for equipment, siting, and exposure.

Temperature sensor siting: 

Do not install the sensor on a steep slope or in a sheltered hollow unless it is typical of the area or unless data from that type of site are desired. When possible, the shelter should be no closer than four times the height of any obstruction (tree, fence, building, etc.).

 

4 Air temperature
Air temperature is temperature of the free air conditions surrounding the station at a height between 4 and 6 feet above ground level. The air should be freely exposed to sunshine and wind and not close to or shielded by trees, buildings, or other obstructions.
 

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

Most recent photo of the NYC ASOS taken in 2013 showing the trees shielding the temperature sensor

236B219D-4DED-415F-A330-21D502D120A1.jpeg.93ee4b911ec3e9d51b0a22b8b389efa3.jpeg


https://www.ncdc.noaa.gov/cdo-web/datasets/GHCND/stations/GHCND:USW00094728/detail

Obstruction Descriptions

OBSTRUCTIONS BEGIN DATE¹ END DATE¹
TREES 2021-04-06 Present
TREES 2017-08-01 2021-04-06
TREE 020-340 deg 25-25 ft 20-54 deg 2016-06-15 2017-08-01
HYGR 090/4 TREES ENCIRLCE/25/20-54 IN FENCED ENCOLSURE 50 FT X 25 TH 1995-06-27 2016-06-15
UNIV 050/4 CRS 180/9 H083 SENSOR 200/8 TB 220/20 TREES ENCIRCLE/25/20-54 EQUIPMENT IN FENCED ENCLOSURE 50 FEET X 25 FEET 1992-01-01 1995-06-27

Being in the prime of my naïveté I contacted the Conservancy through their website. I politely referenced the atmospheric Professionals and  competent enthusiasts concerns on this forum and other venues. I mentioned that a simple tree pruning in the vicinity of the ASOS would help. I received a programmed ‘Thank You’ reply last Thursday, with assurance of a response forthcoming. I’ve directed my heirs to monitor my account for that response. Other than that, consideration should be given to initiate paleo-climate tours of CPK. As always ….

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52 minutes ago, rclab said:

Being in the prime of my naïveté I contacted the Conservancy through their website. I politely referenced the atmospheric Professionals and  competent enthusiasts concerns on this forum and other venues. I mentioned that a simple tree pruning in the vicinity of the ASOS would help. I received a programmed ‘Thank You’ reply last Thursday, with assurance of a response forthcoming. I’ve directed my heirs to monitor my account for that response. Other than that, consideration should be given to initiate paleo-climate tours of CPK. As always ….

It may take the NWS getting directly involved in the case. I am not sure why they took a hands off approach as far back as 2003. It was as if they were resigned to not getting accurate temperature measurements from the site. Before the trees began to block the sensors in the early 90s, Central Park was much more in line with the LGA and EWR high temperatures. It wasn’t surprising to see Central Park warmer than the other stations at times like the famous 1977 July heatwave. So that’s  telling us that it’s just a maintenance issue near the castle. Go a short walk to a nearby open lawn or softball field and the temperatures will be several degrees warmer than under the trees. 
 

July 1977 heatwave

Data for NY CITY CENTRAL PARK, NY
Click column heading to sort ascending, click again to sort descending.
Date
Max Temperature 
1977-07-13 93
1977-07-14 92
1977-07-15 96
1977-07-16 98
1977-07-17 97
1977-07-18 100
1977-07-19 102
1977-07-20 92
1977-07-21 104


 

Data for NEWARK LIBERTY INTL AP, NJ
Click column heading to sort ascending, click again to sort descending.
Date
Max Temperature 
1977-07-13 92
1977-07-14 91
1977-07-15 93
1977-07-16 97
1977-07-17 99
1977-07-18 98
1977-07-19 100
1977-07-20 90
1977-07-21 102


 

Data for LAGUARDIA AIRPORT, NY
Click column heading to sort ascending, click again to sort descending.
Date
Max Temperature 
1977-07-13 92
1977-07-14 89
1977-07-15 90
1977-07-16 96
1977-07-17 95
1977-07-18 95
1977-07-19 99
1977-07-20 90
1977-07-21 99
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Even NYC (central park) should get their 'first' 90 f the season today with the area seeing widespread mid to perhaps upper 90s in the hot spots.  Hot through Wed but clouds and storms may limit 90s on Tuesday and maybe wed.  Cooler stretch 6/11 - 6/14 as trough and subsequent ULL meanders around the E US.  Exact progression of that still to be determined.  But overall warm to hot June looks to be the theme as we see guidance bringing back heat by the middle of the month.

 

10AM Round up

 

EWR: 88
BLM: 86
LGA:86
ACY: 85
New Brnswck: 85
PHL : 85
TEB: 85
TTN: 83
JFK: 83 
NYC: 83

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Using a regression equation for all June maximum temperatures for EWR, LGA, HPN, and NYC for 1971-00 (the last “normal” period that was mostly free of the impact of tree overgrowth at Central Park) but excluding the small number of days with missing values at HPN, Central Park should have had a high temperature of 93 yesterday. That the rooftop Manhattan mesonet station had a high of 91 yesterday adds evidence that the statistical estimate for Central Park is reasonable.

The actual value of 89 was more than 2 sigma below the expected value. It falls outside the 95% confidence interval based on the high temperatures at EWR, LGA, and HPN. The coefficient of determination for the equation is 0.955.

Almost certainly, there are other such outlier values. I will run through the June 2000-2020 data looking for such values later today or this evening.

A similar situation likely exists for July and August. 

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Central Park shows the best place to be today outside is in a park under a tree...

 some Hot periods...

6/21-7/14 1966...19 of 24 days 90 or higher...

7/04-7/20 1993...14 of 17 days 90 or higher...

7/29-8/19 2002...17 of 22 days 90 or higher...

7/23-8/17 1944...19 of 26 days 90 or higher...

7/12-7/23 1952...11 of 12 days 90 or higher...

9/23-9/04 1953...12 of 12 days 90 or higher...

7/27-8/13 1896...14 of 18 days 90 or higher...

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59 minutes ago, SACRUS said:

 

Even NYC (central park) should get their 'first' 90 f the season today with the area seeing widespread mid to perhaps upper 90s in the hot spots.  Hot through Wed but clouds and storms may limit 90s on Tuesday and maybe wed.  Cooler stretch 6/11 - 6/14 as trough and subsequent ULL meanders around the E US.  Exact progression of that still to be determined.  But overall warm to hot June looks to be the theme as we see guidance bringing back heat by the middle of the month.

 

10AM Round up

 

EWR: 88
BLM: 86
LGA:86
ACY: 85
New Brnswck: 85
PHL : 85
TEB: 85
TTN: 83
JFK: 83 
NYC: 83

Missing Islip.

ISP already at 90 at 11, FRG 89 and Newark is 92. Some places may hit 100 today. 
 

92 here

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15 hours ago, donsutherland1 said:

Unfortunately, that is the case when it comes to the climate record. The Conservancy does not place much value in the integrity of the climate record. That's the reality of its inaction despite what is now unequivocal evidence of the impact of the overgrowth of the trees around the ASOS.

No argument, but surely the responsibility for the integrity of the weather records falls on the NWS.

Imho, the Conservancy  in this instance is an innocent bystander, they have no dog in this fight. 

As an aside, the site is really smothered, there is a 70 foot or so tree just to the east, along with the sheltering shrubbery, which really surrounds the fenced in site proper.

I'd love to envision a control plot sited nearby without the vegetation. It could really help determine the impact of site overgrowth.

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Up to 94 at noon. Riding my bike around its more of a sea breeze than yday so its still quite warm but tolerable in spots close to the Sound..but only within a mile or so, then its back to the furnace

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over the years Central Park had rain gauge issues in 1983...snowfall measurment and temperature issues for the last 25 or so years...since there is no on sight meteorologist I expect bad measurements to continue...

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35 minutes ago, dWave said:

Up to 94 at noon. Riding my bike around its more of a sea breeze than yday so its still quite warm but tolerable in spots close to the Sound..but only within a mile or so, then its back to the furnace

Seabreeze overall seems a bit stronger today than yesterday. Captree/Jones Beach are only in the low 70s. But yep-definitely furnace where I am. 

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