Henri: Moderate-Major impacts NYC subforum this weekend, possibly into Monday August 21-23, 2021

[nycwinter]

5 minutes ago, sojitodd said:

Central Park above 7 inches officially(7.04 inches storm total) as of 8pm. That would be a 24 hour total too since it started at 8 last night.

 

I wonder how that ranks in 24 hour rainfall totals for NYC?

These precipitation extremes were measured at Central Park and go back to 1869. During that time, the heaviest downpour recorded for a single day there was 8.28 inches (210.3 millimetres) on September 23, 1882.

[nycwinter]

7 minutes ago, Snowlover11 said:

wouldn’t have the same moisture as a tropical system

unless you was in the mountains

[sojitodd]

Just now, nycwinter said:

These precipitation extremes were measured at Central Park and go back to 1869. During that time, the heaviest downpour recorded for a single day there was 8.28 inches (210.3 millimetres) on September 23, 1882.

Actually I looked it up and it(greatest 24 hour total-not single calendar day) was 11.17 inches on October 8-9th, 1903. So this is not really close for that at least.

[Big Jims Videos]

2 hours ago, forkyfork said:

i'm just talking about raw totals. irene maxed out around 8" in nnj but there was a record wet month preceding it

Lee came through before Irene which also led to historic flooding in NEPA.

[Jeff Grann]

3 minutes ago, nycwinter said:

unless you was in the mountains

Not there either . You just have much higher ratios with altitude.

[LibertyBell]

4 minutes ago, sojitodd said:

Actually I looked it up and it(greatest 24 hour total-not single calendar day) was 11.17 inches on October 8-9th, 1903. So this is not really close for that at least.

wasnt that in a tropical system?

there was a sandy like storm in 1903

 

[weathermedic]

6.56 storm total so far at my station.

[Gravity Wave]

9 minutes ago, Big Jims Videos said:

Lee came through before Irene which also led to historic flooding in NEPA.

Lee was the worst flooding for NEPA, Central PA and the Southern tier of NY since Agnes in 1972.

[Rjay]

1.70" and gust to 30mph

[LibertyBell]

Stars are out now! and a really bright planet in the SW must be Jupiter which is the brightest it will be for 13 months!

 

[nycsnow]

Raining on Staten Island again very Ight 

[nycsnow]

Tomorrow

 

[wxallannj]

Storm total 5.76"   

 

[Rtd208]

Picked up 3.26" of rain so far today.

Storm total of 3.66" so far.

[wdrag]

Wantage NJ 3.46" today and 3.91 storm total in about 24 hrs.

 

 

[dmillz25]

8” even here

[hudsonvalley21]

2.02 here for the day so far. Steady westerly wind around 15 mph currently.

[donsutherland1]

1 hour ago, GaWx said:

Then why does their Twitter that I linked above say that Central Park ASOS had 1.94" 10-11 and 1.84" 11-midnight? Are we talking about the same station?

 

"In addition to being the wettest day since 2014... the 1.94" of rain that fell from 10pm to 11pm at Central Park last night was the wettest hour on record for New York City."

 

"The Central Park ASOS broke the daily maximum rainfall record for 8/21 with 4.45 inches of rain! Most of this rain fell over a 2 hour period, with 1.84 inches falling from 11pm to midnight."

 

The generated chart is what is in the database. I am not sure where the differences arise. 

 

[LibertyBell]

Moon and Jupiter look spectacular together, they're also lighting up clouds nearby.

 

[LibertyBell]

22 minutes ago, nycsnow said:

Tomorrow

 

looks like an inland snowfall map with lesser totals as you go east and south lol

[donsutherland1]

1 hour ago, hudsonvalley21 said:

Upton’s Latest QPF map.  I assume they are forecasting this is on top what has already fallen.

 

There will probably be a pause in NYC until Henri starts heading east again.

[uncle W]

3.45" here so far...

[Intensewind002]

57 minutes ago, Gravity Wave said:

Lee was the worst flooding for NEPA, Central PA and the Southern tier of NY since Agnes in 1972.

Im surprised Lee was never retired, if i remember correctly it’s one of the costliest storms not to have that done

[Snowlover11]

thats all she wrote for now, as we await the pivot back east.  not sure how much i’ve gotten thus far probably in the 4-5” range 3.3” today but another station says 5.2”

[RutCorRX]

25 minutes ago, Snowlover11 said:

thats all she wrote for now, as we await the pivot back east.  not sure how much i’ve gotten thus far probably in the 4-5” range 3.3” today but another station says 5.2”

When is the pivot expected?

[Snowlover11]

5 minutes ago, RutCorRX said:

When is the pivot expected?

early am 6-8am timeframe.

[CIK62]

MOST RECENT DATA: 10pm edt   22-AUG-21
NEW YORK CENTRAL PARK, NY (   89')                   LAT=40.77N LON= 73.98W   
STA     TMP DP RH  WD WS  G PRS  ALT PCPN     CLOUD LEVELS HGT TYP   VIS  WX
NYC  5pm 71 70 96 280  3    085 2981 1.49   11 BKN  48 BKN  75 OVC 1 1/4 RF
     6pm 71 69 93 000  4    083 2980         8 SCT  13 BKN  80 OVC     2 RF
    1820 71 69 93               2981                 7 BKN  12 OVC     3 R-F
    1831 71 69 93 000  4        2980                 9 SCT  15 OVC     4 R-F
    1836 71 69 93 000  3        2981                 9 BKN  17 OVC     4 RF
    1848 72 70 93 000  4        2981        12 BKN 110 BKN  HI ???     5 R-F
     7pm 71 69 93 000  5    086 2981                12 SCT 110 OVC     5 R-F
     8pm 70 68 93           087 2982 1.83   90 SCT 110 BKN 240eOVC     3 R-F
     9pm 71 69 93 230  3    088 2982               120 SCT 250eOVC     3 R-F
    10pm 71 69 93 230  4    089 2982        28 SCT  37 BKN  70 OVC     8
NYC    6 temps: high=  72 at 1848 low=  70 at  8pm mean=  70.8   precip=  1.83 + 4.45 = 6.28" for the last 2 days thru 8pm.

btw:    What caused this deluge in August 2011?      It is not Irene.       That was at the end of the month.

https://weatherinnyc.blogspot.com/2011/08/aug-14-2011-storm-updates.html

[donsutherland1]

6 minutes ago, CIK62 said:

MOST RECENT DATA: 10pm edt   22-AUG-21
NEW YORK CENTRAL PARK, NY (   89')                   LAT=40.77N LON= 73.98W   
STA     TMP DP RH  WD WS  G PRS  ALT PCPN     CLOUD LEVELS HGT TYP   VIS  WX
NYC  5pm 71 70 96 280  3    085 2981 1.49   11 BKN  48 BKN  75 OVC 1 1/4 RF
     6pm 71 69 93 000  4    083 2980         8 SCT  13 BKN  80 OVC     2 RF
    1820 71 69 93               2981                 7 BKN  12 OVC     3 R-F
    1831 71 69 93 000  4        2980                 9 SCT  15 OVC     4 R-F
    1836 71 69 93 000  3        2981                 9 BKN  17 OVC     4 RF
    1848 72 70 93 000  4        2981        12 BKN 110 BKN  HI ???     5 R-F
     7pm 71 69 93 000  5    086 2981                12 SCT 110 OVC     5 R-F
     8pm 70 68 93           087 2982 1.83   90 SCT 110 BKN 240eOVC     3 R-F
     9pm 71 69 93 230  3    088 2982               120 SCT 250eOVC     3 R-F
    10pm 71 69 93 230  4    089 2982        28 SCT  37 BKN  70 OVC     8
NYC    6 temps: high=  72 at 1848 low=  70 at  8pm mean=  70.8   precip=  1.83 + 4.45 = 6.28" for the last 2 days thru 8pm.

That source is way off for today’s rainfall. At 4 pm, the daily climate summary showed 1.90”. More fell since then.

000
CDUS41 KOKX 222034
CLINYC

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
434 PM EDT SUN AUG 22 2021

...................................

...THE CENTRAL PARK NY CLIMATE SUMMARY FOR AUGUST 22 2021...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1869 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         76    408 AM  95    1916  83     -7       88
  MINIMUM         71    253 PM  52    1895  68      3       73
  AVERAGE         74                        76     -2       81

PRECIPITATION (IN)
  TODAY            1.90R         1.85 1994   0.14   1.76      T
  MONTH TO DATE    7.81                      3.31   4.50     4.24
  SINCE JUN 1     21.52                     12.45   9.07    12.58
  SINCE JAN 1     39.42                     31.62   7.80    26.97

 

 

[guinness77]

I couldn’t get a good picture of it with my phone, but the moon looks absolutely gorgeous right now, it’s very comfortable out and not a breeze to be felt. If you had told me this even just 24 hours ago I would have said you were crazy. 

[Tatamy]

No full moon out here.  The moisture from Henri has circled all the way around from CT, SE NY, and northern NJ and found it’s way to eastern PA.  It’s been pouring out here tonight after a drizzly day.  2.01” on the day so far.