Long Island Weather

[TWCCraig]

Winds seemed stronger though. Definitely had gusts up to 70mph at my location.


The following are unofficial observations taken during 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 is also available on our home
Page at weather.Gov/NYC

********************storm total snowfall********************

Location storm total time/date comments
                     snowfall of
                     /inches/ measurement

Connecticut

... Fairfield County...
   Danbury 4.0 1200 am 12/27 CT dot
   Newtown 3.2 835 PM 12/26 public
   Weston 3.0 900 PM 12/26 trained spotter
   Shelton 2.9 840 PM 12/26 public
   Bridgeport 2.5 700 am 12/27 coop observer
   New Canaan 2.0 638 PM 12/26 trained spotter

... New Haven County...
   Wolcott 5.3 1030 PM 12/26 trained spotter
   Cheshire 4.5 950 PM 12/26 trained spotter
   Waterbury 4.0 1200 am 12/27 CT dot
   Naugatuck 4.0 858 PM 12/26 trained spotter
   Southbury 4.0 1200 am 12/27 CT dot
   Mount Carmel 3.4 905 PM 12/26 trained spotter
   Hamden 3.1 1050 PM 12/26 public
   Clintonville 3.0 855 PM 12/26 trained spotter
   Milford 2.5 1200 am 12/27 CT dot
   North Haven 2.3 846 PM 12/26 trained spotter
   Meriden 2.3 800 PM 12/26 public

... New London County...
   Lisbon 3.2 935 PM 12/26 trained spotter
   Colchester 2.5 1200 am 12/27 CT dot

New Jersey

... Bergen County...
   Oakland 3.3 515 PM 12/26 public
   Teterboro 2.8 658 PM 12/26 ASOS
   Ridgewood 2.4 820 PM 12/26 trained spotter

... Essex County...
   Roseland 2.0 530 PM 12/26 public

... Passaic County...
   West Milford 4.5 752 am 12/27 Skywarn spotter
   Ringwood 4.1 742 PM 12/26 trained spotter
   Haskell 3.4 1002 PM 12/26 trained spotter
   Wayne 2.0 630 PM 12/26 trained spotter

New York

... Orange County...
   Greenville 6.0 200 am 12/27 Skywarn spotter
   New Windsor 6.0 1140 PM 12/26 trained spotter
   Warwick 5.8 800 am 12/27 Skywarn spotter
   Middletown 5.8 1000 PM 12/26 public
   Tuxedo Park 5.0 831 PM 12/26 public
   Newburgh 4.5 1045 PM 12/26 trained spotter
   Monroe 4.3 637 PM 12/26 public
   Goshen 4.1 1045 PM 12/26 Skywarn spotter
   Montgomery 4.0 800 PM 12/26 public
   Harriman 3.2 900 PM 12/26 trained spotter
   Blooming Grove 3.0 712 PM 12/26 public
   Chester 3.0 710 PM 12/26 public

... Putnam County...
   Mahopac 4.5 922 PM 12/26 public
   Putnam Valley 4.4 1030 PM 12/26 public
   Kent Cliffs 4.0 1010 PM 12/26 public

... Rockland County...
   Suffern 4.0 900 PM 12/26 public
   Stony Point 3.7 910 PM 12/26 trained spotter

... Westchester County...
   Mount Kisco 3.0 545 PM 12/26 public
   Armonk 2.3 555 PM 12/26 public
   Scarsdale 2.0 800 PM 12/26 trained spotter
   Dobbs Ferry 2.0 500 PM 12/26 public


********************storm total rainfall********************

Location storm total time/date comments
                     rainfall of
                     /inches/ measurement

Connecticut

... Fairfield County...
   Bridgeport 1.01 700 am 12/27 coop observer

New Jersey

... Bergen County...
   Teterboro 1.57 700 am 12/27 ASOS
   Lodi 1.04 600 am 12/27 mesonet

... Essex County...
   Newark Airport 1.84 700 am 12/27 ASOS
   Maplewood 1.44 600 am 12/27 mesonet
   Caldwell Airport 1.44 700 am 12/27 ASOS

... Passaic County...
   Hawthorne 1.12 330 am 12/27 Skywarn spotter

... Union County...
   Linden 1.19 600 am 12/27 ASOS

New York

... Kings County...
   Midwood 1.83 825 am 12/27 coop observer

... New York County...
   Central Park 1.60 700 am 12/27 ASOS

... Queens County...
   NYC/JFK Airport 1.45 700 am 12/27 ASOS

... Suffolk County...
   Centerport 1.58 700 am 12/27 public
   East Farmingdale 1.39 700 am 12/27 ASOS
   Shirley Airport 1.11 700 am 12/27 ASOS
   Islip Airport 1.10 700 am 12/27 ASOS
   Mount Sinai 1.05 700 am 12/27 NWS employee
   Upton 1.02 700 am 12/27 NWS office


**********************24 hour rainfall**********************

Location 24 hour time/date comments
                     rainfall of
                     /inches/ measurement

Connecticut

... Middlesex County...
   1 N Westbrook center 0.89 700 am 12/27 cocorahs

New Jersey

... Bergen County...
   2 S River Vale TWP 1.54 700 am 12/27 cocorahs
   1 E Saddle Brook TWP 1.08 600 am 12/27 cocorahs

... Hudson County...
   N Harrison 1.70 800 am 12/27 cocorahs

... Passaic County...
   3 NE West Milford tw 1.53 600 am 12/27 cocorahs
   1 SSE Hawthorne 1.12 600 am 12/27 cocorahs

... Union County...
   1 NNW Cranford TWP 1.26 600 am 12/27 cocorahs

New York

... Nassau County...
   W Floral Park 1.37 700 am 12/27 cocorahs

... Putnam County...
   8 NE Cold Springs 1.40 645 am 12/27 cocorahs
   4 ESE Beacon 1.38 715 am 12/27 cocorahs

... Queens County...
   5 WSW Queens 2.01 700 am 12/27 cocorahs

... Westchester County...
   2 NW South Salem 0.88 700 am 12/27 cocorahs


***********************peak wind gust***********************

Location Max wind time/date comments
                        gust of
                         mph measurement

Connecticut

... Fairfield County...
   Bridgeport Airport 46 1213 am 12/27 ASOS

... New Haven County...
   1 S Branford 48 1130 PM 12/26 mesonet

... New London County...
   Groton Airport 49 256 am 12/27 ASOS

New Jersey

... Bergen County...
   Teterboro 43 951 am 12/26 ASOS

... Essex County...
   Newark Airport 44 151 am 12/27 ASOS

New York

... Anz330...
   buoy 44039 58 1245 am 12/27 buoy

... Anz335...
   buoy 44040 54 1045 PM 12/26 buoy

... Anz355...
   2 WSW Rockaway Beach 59 1040 PM 12/26 mesonet
   buoy 44065 58 950 PM 12/26 buoy

... Nassau County...
   2 NNE Glen Cove 63 1218 am 12/27 mesonet
   3 E Lido Beach 60 915 PM 12/26 mesonet

... New York County...
   Central Park 45 1103 PM 12/26 ASOS

... Queens County...
   NYC/La Guardia 47 321 am 12/27 ASOS
   NYC/JFK Airport 47 1051 PM 12/26 ASOS

... Suffolk County...
   Eatons Neck 70 1110 PM 12/26 mesonet
   4 ENE Plum Island 68 1245 am 12/27 mesonet
   Patchogue 61 106 am 12/27 public
   2 WSW Fishers Island 59 1235 am 12/27 mesonet
   1 S Blue Point 57 104 am 12/27 mesonet
   Captree State Park 54 905 PM 12/26 mesonet
   Orient 50 1039 PM 12/26 public
   Islip Airport 49 1200 am 12/27 ASOS
   Westhampton Beach 48 1257 am 12/27 ASOS
   Montauk 47 933 PM 12/26 ASOS
   East Farmingdale 43 206 am 12/27 ASOS
   Shirley Airport 43 115 am 12/27 ASOS

... Westchester County...
   Larchmont 60 1056 PM 12/26 mesonet

[TWCCraig]

344 PM EST FRI DEC 28 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM SATURDAY TO 6 AM
EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN UPTON HAS ISSUED A WINTER WEATHER
ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 8 AM SATURDAY TO 6 AM
EST SUNDAY.

* LOCATIONS...NASSAU AND WESTERN SUFFOLK COUNTIES.

* HAZARD TYPES...SNOW.

* ACCUMULATIONS...SNOW ACCUMULATION OF 2 TO 4 INCHES...WITH THE
  HIGHER AMOUNTS AWAY FROM THE SOUTH COAST.

* TEMPERATURES...IN THE 30S.

* VISIBILITIES...ONE QUARTER TO ONE HALF MILE AT TIMES.

* TIMING...SNOW BEGINS IN THE MORNING...AND CONTINUES THROUGH THE
  AFTERNOON BEFORE TAPERING OFF SATURDAY NIGHT. THE SNOW WILL MIX
  WITH OR BRIEFLY CHANGE TO RAIN DURING THE
  AFTERNOON...ESPECIALLY NEAR THE SOUTH COAST.

* IMPACTS...MODERATE SNOW WILL MAKE FOR DANGEROUS TRAVEL DURING
  THE AFTERNOON AND INTO THE NIGHT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

[TWCCraig]

Upton literally dropped a bomb, they changed the snowfall forecast. Reissued the Winter Weather Advisory, then issued a wind advisory 

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN UPTON HAS ISSUED A WINTER WEATHER
ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 6
AM EST SUNDAY.

* LOCATIONS...LONG ISLAND.

* HAZARD TYPES...SNOW AND BLOWING SNOW.

* ACCUMULATIONS...SNOW ACCUMULATION OF 2 TO 4 INCHES.

* TEMPERATURES...FALLING INTO THE UPPER 20S.

* VISIBILITIES...DROPPING TO ONE HALF MILE THIS EVENING.

* TIMING...RAIN WILL CHANGE TO SNOW EARLY THIS EVENING. SNOW WILL
  CONTINUE THROUGH MIDNIGHT...AND THEN TAPER OFF LATE.

* IMPACTS...HAZARDOUS TRAVEL TONIGHT.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

...WIND ADVISORY IN EFFECT FROM 6 AM TO 6 PM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN UPTON HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 6 AM TO 6 PM EST SUNDAY.

* LOCATIONS...NORTHEAST NEW JERSEY...SOUTHEAST NEW YORK AND
  SOUTHERN CONNECTICUT.

* HAZARDS...STRONG WINDS.

* WINDS...NORTHWEST 20 TO 30 MPH WITH GUSTS 45 TO 50 MPH.

* TIMING...SUNDAY WITH STRONGEST WINDS DURING THE AFTERNOON
  HOURS.

* IMPACTS...WINDS OF THIS MAGNITUDE COULD DOWN TREES AND TREE
  LIMBS...POWER LINES AND HOLIDAY DECORATIONS...AND CAUSE MINOR
  PROPERTY DAMAGE. SCATTERED POWER OUTAGES ARE POSSIBLE. DRIVING
  WILL BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 31 TO 39 MPH...
OR GUSTS OF 46 TO 57 MPH...ARE EXPECTED OR OCCURRING. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.

[TWCCraig]

2012 was the warmest year on record for Islip, NY (KISP), also for Central Park, NY (KNYC)

record event report
National Weather Service New York NY
342 PM Wed Jan 2 2013

... 2012 was the warmest year on record at Central Park NY...

For the year of 2012... Central Park NY (nyc) recorded an average
temperature of 57.3 degrees. This breaks the record for the warmest
year on record. The previous record was 57.2 degrees... recorded in
the years of 1990... 1991 and 1998. Records for Central Park date
back to 1869.

[TWCCraig]

... 2012 was the warmest year on record at Central Park NY...
... Other locations across the area had record breaking warmth as
well...

For the year of 2012... Central Park NY (nyc) recorded an average
temperature of 57.3 degrees. This breaks the record for the warmest
year on record. The previous record was 57.2 degrees... recorded in
the years of 1990... 1991 and 1998. Records for Central Park date
back to 1869.

A Sample of other first order climate locations reveals they also
came in with record breaking warmth. Here is that data.

Average temperature records and normals from 2012:


Station 2012 ranking previous record normal value departure

NYC 57.3 1 57.2 1990/91/98 55.0 2.3

LGA 58.5 tied(1) 58.5 2006 55.5 3.0

JFK 57.0 1 56.2 1991 54.5 2.5

Ewr 57.8 1 57.6 1990 54.9 2.9

Isp 55.3 1 55.0 1998 52.3 3.0

Bdr 55.6 1 54.3 1991/2010 52.5 3.1

Regarding precipitation... the area was generally drier than average.

Precipitation amounts and normals.

Station 2012 normal value departure last year value

NYC 38.51 49.94 -11.43 72.81

LGA 36.71 44.73 -8.02 65.34

JFK 39.85 42.77 -2.92 55.78

Ewr 36.35 46.25 -9.90 69.91

Isp 44.71 46.24 -1.53 52.32

Bdr 40.99 42.74 -1.75 57.88

As you can see... Central Park NY was quite dry. However... none of
these locations broke into the top 10 list for precipitation.

Regarding snowfall... data is usually calculated from July to July...
not calendar year.

[TWCCraig]

... Dense fog advisory in effect from midnight tonight to 10 am
EST Sunday...

The National Weather Service in Upton has issued a dense fog
advisory... which is in effect from midnight tonight to 10 am EST
Sunday.

* Locations... the New York City metropolitan area... Long Island
and southern Connecticut.

* Hazards... dense fog.

* Visibilities... one quarter mile or less at times.

* Timing... late tonight into Sunday morning.

* Impacts... hazardous travel conditions due to poor visibility.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to one quarter mile or less. If driving... slow down... use
your low beam headlights... and leave plenty of distance ahead of
you in case a sudden stop is needed.

[TWCCraig]

I feel pretty confident that Monday will be in the low 60's. Once we have the FROPA, clouds will open up to sun winds will be NW and since the cold air won't be directly behind the front, we have a very good chance a 60's on Monday. 12z ECMWF agrees (shown below). Doubt we'll break the record of 67°F set in 1995.

[TWCCraig]

MIND = BLOWN!

SREF has a 45-50% of 8"+ of snow Tuesday! One individual member of the SREF gives us 1.5" of precip. Based on a 15:1 ratio, that's 22.5" of snow!

[TWCCraig]

A strong cold front will cross the region this afternoon. The
passage of the front will be marked by a wind shift from gusty
southwest winds to a period of strong westerly winds. Winds of 20
to 30 mph and gusts of 30 to 40 mph are expected in the wake of
the frontal passage... with a few higher gusts possible right
behind the front.

Winds this strong are capable of Downing a few small tree limbs
and branches... possibly causing isolated power outages. Driving
can also be difficult... especially for high profile vehicles.

[TWCCraig]

000
SXUS71 KOKX 202132
RERISP

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
0431 PM EST SUN JAN 20 2013

...RECORD HIGH TEMPERATURE SET AT ISLIP NY...

A RECORD HIGH TEMPERATURE OF 56 DEGREES WAS SET AT ISLIP NY TODAY.
THIS BREAKS THE OLD RECORD OF 54 SET IN 2006.

[TWCCraig]

The following are unofficial observations taken during 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 is also available on our home
Page at weather.Gov/NYC

********************storm total snowfall********************

Location storm total time/date comments
                     snowfall of
                     /inches/ measurement

Connecticut

... Fairfield County...
   Shelton 0.6 955 PM 1/21 public
   Bridgeport T 700 PM 1/21 coop observer

... Middlesex County...
   Clinton 0.9 300 am 1/22 broadcast media

... New Haven County...
   North Haven 0.6 955 PM 1/21 Skywarn spotter
   Southbury 0.5 900 PM 1/21 Skywarn spotter
   Waterbury 0.5 1000 PM 1/21 CT dot

... New London County...
   Stonington 2.8 1200 am 1/22 Skywarn spotter
   Norwich 1.0 1000 PM 1/21 CT dot
   Groton 0.5 1000 PM 1/21 CT dot

New York

... Nassau County...
   North Massapequa 3.0 900 PM 1/21 public
   Wantagh 2.8 934 PM 1/21 Skywarn spotter
   Massapequa 2.4 1015 PM 1/21 Skywarn spotter
   North Merrick 2.3 1130 PM 1/21 public
   Lido Beach 2.0 830 PM 1/21 Skywarn spotter
   East Meadow 0.2 1020 PM 1/21 Skywarn spotter

... Queens County...
   NYC/JFK Airport 0.1 1200 am 1/22 FAA contract observer

... Suffolk County...
   Cutchogue 3.8 1100 PM 1/21 Skywarn spotter
   Upton 3.5 100 am 1/22 NWS office
   Baiting Hollow 3.3 955 PM 1/21 public
   Orient 3.1 927 PM 1/21 Skywarn spotter
   Riverhead 3.0 900 PM 1/21 NWS employee
   East Marion 3.0 1100 PM 1/21 public
   Westhampton Beach 3.0 1000 PM 1/21 public
   Bay Shore 2.7 1030 PM 1/21 Skywarn spotter
   Islip Airport 2.5 1200 am 1/22 FAA contract observer
   Patchogue 2.5 1130 PM 1/21 NWS employee
   North Babylon 2.5 915 PM 1/21 public
   Ronkonkoma 2.5 930 PM 1/21 NWS employee
   Medford 2.0 955 PM 1/21 public
   Springs 2.0 816 PM 1/21 public
   Lake Ronkonkoma 1.0 838 PM 1/21 Skywarn spotter
   Lindenhurst 1.0 840 PM 1/21 Lindenhurst oem
   Port Jefferson 0.9 1130 PM 1/21 public
   Mount Sinai 0.8 1130 PM 1/21 NWS employee
   East Setauket 0.5 930 PM 1/21 public
   Stony Brook 0.3 1250 am 1/22 Skywarn spotter

[TWCCraig]

... Cold snap will continue through at least Friday...

The current stretch of cold weather... with temperatures 10 to 15
degrees below mid winter averages... will continue into at least
Friday as an upper level disturbance passing through tonight
brings a reinforcing shot of Arctic air. Lows both tonight and
Thursday night should fall to 10 to 15 in and around New York
City... and into the single digits most elsewhere. Isolated spots
in the valleys well north and west of New York City... and possibly
also the Long Island Pine barrens region... could see temperatures
around zero.

As winds diminish tonight... below zero wind chills are not
expected. However... as northwest winds increase to 10 to 20
mph... wind chills should drop to zero to 10 below zero from just
before daybreak to around midday on Thursday. Similar wind chills
should occur Thursday night.

Arctic air will remain in place Friday into Friday night as low
pressure passes off to the southeast and brings some light snow.
Slow moderation in temperatures and wind chills should then begin
over the weekend into early next week in the wake of this system.

Significant impacts that warrant extra caution during this cold
snap include the potential for frozen water pipes and fire
sprinkler piping. For those venturing out... wear a warm coat and
gloves... cover your head... and dress in layers to limit direct
exposure and prevent frostbite and hypothermia.

[TWCCraig]

Lows around the area:

My station: 10.1°F
KISP: 6°F
Westhampton: -6°F
Farmingdale: 8°F
Central Park: 12°F

Sucks that I didn't make it into the single digits last night. NWS has me at 12 tonight. Ugh..

[TWCCraig]

Talk about a superstorm. 18z GFS shows a strong storm coming up the east coast, inland though, at hr 153. There has been a consistency with the GFS showing a very heavy convective band with this storm, possibly severe thunderstorms. The line moves north and doesn't weaken. Obviously this will change greatly, nice fantasy storm though. Here are some of the stats for KISP:

Total QPF: 2.68"
Highest Sustained Wind: S @ 45mph
925mb Winds: 107mph!
850mb Winds: 110mph!
Min Press.: 985mb

With that line of heavy convective precip, we would be able to mix down some intense winds. I haven't seen 925mb winds that strong since Sandy. With this storm, verbatim, we're talking about gusts 60-90mph!

[TWCCraig]

ACCUMULATING LIGHT TO OCCASIONAL MODERATE SNOW WILL PUSH NORTHEAST
ACROSS THE TRI-STATE AREA THROUGH THE EVENING HOURS. ACCUMULATION
TOTALS WILL RANGE AROUND 1 INCH OVER NEW YORK CITY METRO...HUDSON
RIVER VALLEY...AND WESTERN LONG ISLAND...TO 2 INCHES OVER
SOUTHEASTERN CONNECTICUT AND EASTERN LONG ISLAND.

IN ADDITION TO THE ACCUMULATING SNOW...REDUCED VISIBILITIES ARE
POSSIBLE...DROPPING DOWN TO BETWEEN 1 AND 2 MILES AT TIMES.

THE COMBINATION OF THE ACCUMULATING SNOW AND REDUCED VISIBILITIES
WILL CAUSE HAZARDOUS DRIVING CONDITIONS DURING THE EVENING
COMMUTE. PLEASE DRIVE WITH CAUTION AS ROADS MAY BECOME
SLIPPERY...AND VISIBILITIES MAY SUDDENLY DIMINISH.

$$