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Rtd208

September 2018 Discussions & Observations Thread

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Yesterday's rainfall totals:

000
NOUS41 KOKX 260417
PNSOKX
CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-261617-

Public Information Statement
Spotter Reports
National Weather Service New York NY
1217 AM EDT Wed Sep 26 2018

The following are unofficial observations taken during the past 15
hours for the storm that has been affecting our region. Appreciation
is extended to highway departments, cooperative observers, Skywarn
spotters and media for these reports. This summary also is available
on our home page at weather.gov/nyc

********************STORM TOTAL RAINFALL********************

LOCATION          STORM TOTAL     TIME/DATE   COMMENTS
                     RAINFALL           OF
                     /INCHES/   MEASUREMENT

CONNECTICUT

...Fairfield County...
   Trumbull              7.32   942 PM  9/25  Trained Spotter
   2 WSW Shelton         5.28   752 PM  9/25  CWOP
   Wilton                5.25   630 PM  9/25  Public
   1 WNW Westport        4.04   757 PM  9/25  CWOP
   1 SSW Georgetown      3.66   802 PM  9/25  CWOP
   1 ENE Norwalk         3.57   800 PM  9/25  CWOP
   New Canaan            3.49   500 PM  9/25  CoCoRaHS
   Danbury Airport       2.71   800 PM  9/25  ASOS
   2 ENE Fairfield       2.66   754 PM  9/25  CWOP
   Stratford             2.38   805 PM  9/25  CWOP
   Brookfield            2.37  1000 PM  9/25  CoCoRaHS
   New Fairfield         2.27   715 PM  9/25  Trained Spotter
   Bethel                2.00   300 PM  9/25  CoCoRaHS
   Bridgeport Airport    1.97   800 PM  9/25  ASOS
   Darien                1.54   355 PM  9/25  Trained Spotter
   1 ENE Stamford        1.13   800 PM  9/25  CWOP

...Middlesex County...
   1 N Durham            6.36   750 PM  9/25  AWS
   Killingworth          6.10   930 PM  9/25  CoCoRaHS
   2 SW Middletown       5.64   749 PM  9/25  AWS
   Clinton               5.28   845 PM  9/25  Broadcast Media
   1 NNE Westbrook       2.12   800 PM  9/25  CWOP
   Fenwick               2.03   745 PM  9/25  HADS

...New Haven County...
   2 W Hamden            8.51   744 PM  9/25  MESOWEST
   Woodbridge            6.05   808 PM  9/25  Public
   East Wallingford      5.36   630 PM  9/25  Social Media
   Stony Creek           4.87   910 PM  9/25  Trained Spotter
   Madison               4.48   815 PM  9/25  CoCoRaHS
   1 SSE Oakville        4.27   800 PM  9/25  CWOP
   3 E Monroe            4.15   804 PM  9/25  CWOP
   1 NNE Ansonia         3.71   730 PM  9/25  MESOWEST
   Meriden Airport       3.42   753 PM  9/25  ASOS
   1 E Branford          3.16   749 PM  9/25  AWS
   New Haven             2.50   645 PM  9/25  CoCoRaHS
   New Haven Airport     2.26   800 PM  9/25  ASOS
   Waterbury Airport     1.83   751 PM  9/25  AWOS
   2 WNW Naugatuck       1.51   755 PM  9/25  CWOP

...New London County...
   Lebanon               6.79   920 PM  9/25  HAM radio
   Colchester            6.09   945 PM  9/25  Trained Spotter
   New London            2.23  1100 PM  9/25  Trained Spotter
   2 NW Preston          1.30   801 PM  9/25  CWOP

NEW JERSEY

...Bergen County...
   Maywood               4.86   700 PM  9/25  Social Media
   Lyndhurst             4.56   750 PM  9/25  AWS
   Haworth               3.77   745 PM  9/25  NJWXNET
   Teterboro Airport     3.71   800 PM  9/25  ASOS
   Tenafly               3.56   230 PM  9/25  CoCoRaHS
   Wood-ridge            3.30   803 PM  9/25  CWOP
   East Rutherford       3.30   810 PM  9/25  Trained Spotter
   1 SE Fair Lawn        2.91   800 PM  9/25  CWOP
   Westwood              2.67   749 PM  9/25  CWOP
   Midland Park          2.44   745 PM  9/25  IFLOWS

...Essex County...
   2 SE Harrison         3.70   754 PM  9/25  GOES
   Cedar Grove           3.10   945 PM  9/25  Trained Spotter
   Caldwell              2.72   945 PM  9/25  Co-Op Observer
   1 NW Nutley           2.54   801 PM  9/25  CWOP
   North Caldwell        2.49   805 PM  9/25  CWOP
   Caldwell Airport      2.33   800 PM  9/25  ASOS
   Millburn              2.29   805 PM  9/25  CWOP
   1 SE Cedar Grove      2.02   800 PM  9/25  CWOP

...Hudson County...
   Bayonne               4.77   500 PM  9/25  Mesonet
   North Bergen          4.07   115 PM  9/25  Mesonet
   Secaucus              4.04   115 PM  9/25  Mesonet
   Kearny                2.98   836 PM  9/25  Public
   Harrison              2.76   500 PM  9/25  Co-Op Observer
   Hoboken               1.32   802 PM  9/25  CWOP

...Passaic County...
   1 W Totowa            7.44   945 PM  9/25  Co-Op Observer
   2 ENE Ringwood        6.96   945 PM  9/25  Co-Op Observer
   Hawthorne             2.83   745 PM  9/25  NJWXNET
   West Paterson         2.83   803 PM  9/25  CWOP
   1 SSW Wayne           2.23   745 PM  9/25  NJWXNET
   2 NW Ringwood         2.12   745 PM  9/25  IFLOWS
   1 E Ringwood          2.10   710 PM  9/25  RAWS
   1 E Pompton Lakes     1.68   752 PM  9/25  CWOP
   Hawthorne             1.62   805 PM  9/25  CWOP
   2 NNE Green Pond      0.84   750 PM  9/25  AWS

...Union County...
   Scotch Plains         1.97   800 PM  9/25  CWOP
   Newark Airport        1.89   800 PM  9/25  ASOS
   Roselle Park          1.27   800 PM  9/25  CWOP

NEW YORK

...Kings County...
   1 WNW Bay Ridge       0.80   752 PM  9/25  CWOP
   2 ENE Coney Island    0.78   759 PM  9/25  CWOP

...Nassau County...
   1 SW East Massapequa  1.42   800 PM  9/25  CWOP
   1 SSW Hicksville      1.18   800 PM  9/25  CWOP

...New York County...
   1 ESE Greenwich Vill  2.28   750 PM  9/25  AWS
   Central Park          1.95   800 PM  9/25  ASOS

...Orange County...
   Monroe                2.33   645 PM  9/25  Trained Spotter
   West Point            2.05   655 PM  9/25  RAWS
   Montgomery Airport    1.65   800 PM  9/25  ASOS
   Washingtonville       1.50   800 PM  9/25  Trained Spotter
   1 SSW Newburgh        1.50   743 PM  9/25  CWOP
   New Windsor           1.43   801 PM  9/25  CWOP

...Putnam County...
   Watchtower Training   1.14   737 PM  9/25  OTHER
   Croton Falls          1.00   736 PM  9/25  OTHER

...Queens County...
   Whitestone            2.12   802 PM  9/25  CWOP
   Bellerose             1.24   801 PM  9/25  CWOP
   Astoria               1.12   801 PM  9/25  CWOP
   1 S Jackson Heights   0.93   800 PM  9/25  CWOP

...Richmond County...
   Todt Hill             3.97   800 PM  9/25  CWOP
   Richmondtown          1.54   500 PM  9/25  CoCoRaHS

...Rockland County...
   Piermont              3.49   802 PM  9/25  CWOP
   Nanuet                2.90   730 PM  9/25  IFLOWS
   Montebello            2.31   801 PM  9/25  CWOP
   Montebello            1.91   800 PM  9/25  GOES
   Congers               1.71   750 PM  9/25  Fire Dept/Rescue
   Sloatsburg            1.39   800 PM  9/25  CWOP

...Suffolk County...
   Setauket              4.53  1030 PM  9/25  Public
   Commack               3.39   915 PM  9/25  Public
   West Babylon          2.93   925 PM  9/25  Public
   1 ENE Kings Park      2.65   800 PM  9/25  CWOP
   Smithtown             2.41   845 PM  9/25  Public
   Farmingdale Airport   2.37   800 PM  9/25  ASOS
   Dowling Sea Com       2.22   200 PM  9/25  Co-Op Observer
   Melville              2.05   804 PM  9/25  CWOP
   1 ESE Lake Grove      1.99   801 PM  9/25  CWOP
   1 SW Deer Park        1.90   805 PM  9/25  CWOP
   Miller Place          1.80   805 PM  9/25  CWOP
   1 NW Babylon          1.56   801 PM  9/25  CWOP
   West Islip            1.50   640 PM  9/25  Trained Spotter
   Greenlawn             1.39   801 PM  9/25  CWOP
   1 W Sunken Meadow Pa  1.37   800 PM  9/25  CWOP
   3 WSW Gilgo State Pa  1.17   800 PM  9/25  CWOP
   Islip Airport         1.15   800 PM  9/25  ASOS
   Farmingville          1.08   802 PM  9/25  CWOP
   Orient                1.01   755 PM  9/25  Trained Spotter

...Westchester County...
   1 NE Irvington        4.58   802 PM  9/25  CWOP
   Elmsford              4.30   800 PM  9/25  CoCoRaHS
   1 WSW Armonk          3.19   755 PM  9/25  CWOP
   1 WSW Hawthorne       2.80   758 PM  9/25  CWOP
   Mamaroneck            2.72   750 PM  9/25  AWS
   Armonk                2.70   445 PM  9/25  Trained Spotter
   1 ENE Eastchester     2.68   801 PM  9/25  CWOP
   Jefferson Valley      2.48   750 PM  9/25  AWS
   Kensico Reservoir     2.35   736 PM  9/25  OTHER
   Ward Pound Ridge      1.90   738 PM  9/25  OTHER
   Pelham                1.52   750 PM  9/25  AWS
   New Croton Reservoir  1.18   736 PM  9/25  OTHER

&&
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Yeah if it could just go ahead and stop raining for a bit that would be nice. Our COOP building had never had as many leaks as this year with how hard and wind driven the rain has been. It is literally finding all the crevices to enter the building. Can't wait to move within a year to a bigger place (hopefully without any leaks because this is ridiculous).

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1 hour ago, LongBeachSurfFreak said:

Makes sense. We are in the marine layer out here currently. If we can get an organized squall line I could see it making a decent way out on to the island. But the beat chance will definitely be from the city west. 

I think even that is a stretch. Looks like the hudson valley and points north and east of there will do well. I think New Hampshire and Massachusetts have the best chance of severe weather IMO.  

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Looking through the list that Don posted above it's strange that all around me reported over 2" but the closest station on the list in Croton Falls was only 1". Looking through a variety of other sources everything was over 2" also so I guess that one gets tossed...

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25 minutes ago, gravitylover said:

Looking through the list that Don posted above it's strange that all around me reported over 2" but the closest station on the list in Croton Falls was only 1". Looking through a variety of other sources everything was over 2" also so I guess that one gets tossed...

The only way to really know how much rain fell at your house, is to have your own rain gage. With convection the amounts can vary widely over very short distances. 

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We're plenty unstable at the surface and shear profiles are increasing as the front approaches.  
 

We could possibly get some discrete activity out ahead of the main line which looks to cross the area between 01-02z.

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29 minutes ago, winterwx21 said:

Hoping for a strong storm tonight. Next week looks warm. No sign of that first really chilly fall airmass. Long range looks warm for us.

That's good! Warm Octobers lead to cold and snowy winters!

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1 hour ago, Cfa said:

77/75 with breaks of sunshine.

75+ degree dew point #41 at my station.

77/76 at JFK, the #42 75+ dewpoint here.  I wonder what the latest and earliest 75+ dew point days on record are?

https://classic.wunderground.com/history/daily/us/ny/new-york-jfk/KJFK/date/2018-9-26

So far about an inch and a quarter of rain between the last two days, most of that fell last night.

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33 minutes ago, LibertyBell said:

77/76 at JFK, the #42 75+ dewpoint here.  I wonder what the latest and earliest 75+ dew point days on record are?

https://classic.wunderground.com/history/daily/us/ny/new-york-jfk/KJFK/date/2018-9-26

So far about an inch and a quarter of rain between the last two days, most of that fell last night.

It looks like October 10, 2017 was the latest 75 degree dew point at JFK.

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Broad but reasonably strong rotation on the tail end charlie west of Scranton.  Given storm mode, that’s the cell to watch, especially as it taps into the enhanced shear in the Wyoming Valley.

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1 hour ago, bluewave said:

It looks like October 10, 2017 was the latest 75 degree dew point at JFK.

Thanks, Chris, looks very close to our latest 90 degree day, which was October 10, 2007 I think?  Do you have a number for our earliest 75+ dew point? I would think it wouldn't be any earlier than April, just like the first 90 degree day.  Do you have that graph for 75+ dew point days updated for number 42?

It's been sunny here and feels both hot and is humid and I'm going to turn the AC on lol.  I think tomorrow is the anniversary of Hurricane Gloria.

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23 minutes ago, LibertyBell said:

Thanks, Chris, looks very close to our latest 90 degree day, which was October 10, 2007 I think?  Do you have a number for our earliest 75+ dew point? I would think it wouldn't be any earlier than April, just like the first 90 degree day.  Do you have that graph for 75+ dew point days updated for number 42?

It's been sunny here and feels both hot and is humid and I'm going to turn the AC on lol.  I think tomorrow is the anniversary of Hurricane Gloria.

Today was day 42. I would have to look up the earliest 75 degree dew point. But last October 9th was the latest 70 degree minimum temperature on record at JFK.

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