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12 hours ago, nycwinter said:

do not believe you it has been plenty cold enough to wear a winter coat almost everyday..

Why would I make that up? It was the warmest January on record. Maybe you wear heavy coats when it's in the 40s and 50s, I don't.

In any event, it's 6 here and feels every bit of it. Kind of amazing that this will be a 12 hour cold snap basically then back to March weather for the foreseeable future.

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This may be the first time Montauk hit 0° but not NYC.

Weather conditions for:
Montauk, Montauk Airport, NY (ASOS/AWOS - OKX) 
Elev: 7 ft; Lat/Lon: 41.07306/-71.92333

Get Yearly Precip Total (non QA/QC'd data) 
Get Water Year Precip Total (non QA/QC'd data): 
For selected observations near this location: click here


 

Date/Time
 
(L)
Temp.
 
(°F)
Dew
Point
(°F)
Relative
Humidity
(%)
Wind
Chill
(°F)
Wind
Direction
 
Wind
Speed
(mph)
Sea Level
Pressure
(mb)
Station
Pressure
(in Hg)
Altimeter
Setting
(in Hg)
6 Hr
Max
(°F)
6 Hr
Min
(°F)
24 Hr
Max
(°F)
24 Hr
Min
(°F)
Feb 4, 6:54 am 1 -8 65 -18 NW 15G25 1034.60 30.54 30.55 4 0    
Feb 4, 5:54 am 0 -11 59 -21 NW 18G26 1033.80 30.52 30.53        
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The -10° at Boston is only their 15th time.

MAZALL-041300-
EASTERN MASSACHUSETTS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BOSTON         PTCLDY    -9 -30  35 W22G35    30.49R WCI -35
6HR MIN TEMP: -10; 6HR MAX TEMP:  -8;

 

Time Series Summary for Boston Area, MA (ThreadEx) - Jan through Dec
Click column heading to sort ascending, click again to sort descending.
Rank
Year
Lowest Min Temperature 
Missing Count
1 1934 -18 0
2 1933 -17 0
3 1943 -14 0
- 1917 -14 0
4 1882 -13 0
5 1957 -12 0
- 1883 -12 0
6 1942 -11 0
- 1914 -11 1
- 1896 -11 3
- 1875 -11 0
7 1918 -10 0
- 1886 -10 0
- 1884 -10 0
  2023 -10 0

 

 

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Just now, Cfa said:

Low of 1 here, currently 3.

My life long above zero streak remains unbroken.

 

ISP has not gone below 0 now since 1988...I believe a big reason is urbanization around the airport thereafter....we had many airmasses since where they would regularly go below 0 before that but do not anymore

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7 hours ago, NorthShoreWx said:

6° with snow flurries at present in Smithtown.

East end is a little closer to the cold core...lots of 3s and 4s there already on the forks.  Even Block Island is down to 1.  -7 to -9 city proper around Boston...right down to the water.

Boston got down to -10 the coldest it's been since 1957 there!

Meanwhile here it's been around 4-5 still the coldest since VD 2014 and not that far from the temps we had that morning.

 

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About Verification: Low this morning CP I think was 4 above.

EC was cyclically consistent at +2 to 5F;  18z ish/3 blend of models looked like a low of +10. 12z/3 MOS MET +8, 12z/3 MOS MAV +6.  

Let the data do the talking.  Have to be careful about the guidance usage, especially critical situations. 

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7 minutes ago, SnowGoose69 said:

 

ISP has not gone below 0 now since 1988...I believe a big reason is urbanization around the airport thereafter....we had many airmasses since where they would regularly go below 0 before that but do not anymore

None in JFK since 1985

I dont recall any arctic outbreaks in 1988

 

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12 minutes ago, bluewave said:

The -10° at Boston is only their 15th time.

MAZALL-041300-
EASTERN MASSACHUSETTS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BOSTON         PTCLDY    -9 -30  35 W22G35    30.49R WCI -35
6HR MIN TEMP: -10; 6HR MAX TEMP:  -8;

 

Time Series Summary for Boston Area, MA (ThreadEx) - Jan through Dec
Click column heading to sort ascending, click again to sort descending.
Rank
Year
Lowest Min Temperature 
Missing Count
1 1934 -18 0
2 1933 -17 0
3 1943 -14 0
- 1917 -14 0
4 1882 -13 0
5 1957 -12 0
- 1883 -12 0
6 1942 -11 0
- 1914 -11 1
- 1896 -11 3
- 1875 -11 0
7 1918 -10 0
- 1886 -10 0
- 1884 -10 0
  2023 -10 0

 

 

Seems like the kind of airmasses we used to get in the 1930s and prior only make it as far south as Boston now.

 

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24 minutes ago, bluewave said:

This may be the first time Montauk hit 0° but not NYC.

Weather conditions for:
Montauk, Montauk Airport, NY (ASOS/AWOS - OKX) 
Elev: 7 ft; Lat/Lon: 41.07306/-71.92333

Get Yearly Precip Total (non QA/QC'd data) 
Get Water Year Precip Total (non QA/QC'd data): 
For selected observations near this location: click here


 

Date/Time
 
(L)
Temp.
 
(°F)
Dew
Point
(°F)
Relative
Humidity
(%)
Wind
Chill
(°F)
Wind
Direction
 
Wind
Speed
(mph)
Sea Level
Pressure
(mb)
Station
Pressure
(in Hg)
Altimeter
Setting
(in Hg)
6 Hr
Max
(°F)
6 Hr
Min
(°F)
24 Hr
Max
(°F)
24 Hr
Min
(°F)
Feb 4, 6:54 am 1 -8 65 -18 NW 15G25 1034.60 30.54 30.55 4 0    
Feb 4, 5:54 am 0 -11 59 -21 NW 18G26 1033.80 30.52 30.53        

How come they dont get modified by the 40+ degree waters?

 

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1 minute ago, LibertyBell said:

None in JFK since 1985

I dont recall any arctic outbreaks in 1988

 

 

The cases in 88 where ISP did it were calm nights...they used to be sort of like FOK/HWV but to less of an extent...once we got into the 90s though I think increased development in areas near them to the east likely cause somewhat of a UHI and even in 94 and 96 setups where in the 80s they may have went below 0 they no longer did

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1 hour ago, lee59 said:

The worst of the cold was just a little northeast of our area. Some of the temperatures on the coast to our north and east are really as low as I can remember seeing. Below zero at coastal locations on Cape Cod, Nantucket, eastern Ct. and Rhode Island. Zero at Montauk, -9 in Boston.

-2 was the low at Montauk, -6 at Block Island, -10 at Boston

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7 hours ago, NorthShoreWx said:

6° with snow flurries at present in Smithtown.

East end is a little closer to the cold core...lots of 3s and 4s there already on the forks.  Even Block Island is down to 1.  -7 to -9 city proper around Boston...right down to the water.

some of these coastal temps are jarring

-10 Boston

-1 Cape Cod

-6 Block Island

-3 Nantucket

-2 Montauk

 

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29 minutes ago, bluewave said:

This may be the first time Montauk hit 0° but not NYC.

Weather conditions for:
Montauk, Montauk Airport, NY (ASOS/AWOS - OKX) 
Elev: 7 ft; Lat/Lon: 41.07306/-71.92333

Get Yearly Precip Total (non QA/QC'd data) 
Get Water Year Precip Total (non QA/QC'd data): 
For selected observations near this location: click here


 

Date/Time
 
(L)
Temp.
 
(°F)
Dew
Point
(°F)
Relative
Humidity
(%)
Wind
Chill
(°F)
Wind
Direction
 
Wind
Speed
(mph)
Sea Level
Pressure
(mb)
Station
Pressure
(in Hg)
Altimeter
Setting
(in Hg)
6 Hr
Max
(°F)
6 Hr
Min
(°F)
24 Hr
Max
(°F)
24 Hr
Min
(°F)
Feb 4, 6:54 am 1 -8 65 -18 NW 15G25 1034.60 30.54 30.55 4 0    
Feb 4, 5:54 am 0 -11 59 -21 NW 18G26 1033.80 30.52 30.53        

This may be the first time I recall FOK going below 0 with any gradient....in the arctic outbreaks since 94 I do not recall a case where on a windy night they got under 1 or 2 

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8 minutes ago, wdrag said:

About Verification: Low this morning CP I think was 4 above.

EC was cyclically consistent at +2 to 5F;  18z ish/3 blend of models looked like a low of +10. 12z/3 MOS MET +8, 12z/3 MOS MAV +6.  

 

Let the data do the talking.  Have to be careful about the guidance usage, especially critical situations. 

there were a lot of guys talking about temperatures not getting below the teens a few days ago. this cold verified pretty far out. As the warmth has been verifying 

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7 minutes ago, SnowGoose69 said:

 

The cases in 88 where ISP did it were calm nights...they used to be sort of like FOK/HWV but to less of an extent...once we got into the 90s though I think increased development in areas near them to the east likely cause somewhat of a UHI and even in 94 and 96 setups where in the 80s they may have went below 0 they no longer did

it's weird that NYC went below a few times in 1994 and ISP did not

 

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The next 8 days are averaging      41degs.(34/48) or +6.

Reached 35 here yesterday at 3am, in the teens daytime.

Today:    Rising T's from near 0 to 20 by sunset, 29 tomorrow AM, wind w.-breezy, p. sunny.

NOW HERE COMES THE 70's:

1675490400-iykSuAF4AzM.png

+5*(43%RH) here at 6am.       6* at 8am.        15* at Noon.      24* at 3pm.      26* at 4pm.     Reached 27* at 4:30pm.

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