Alert archive / Connecticut / Winter Storm Warnings in 2017

Winter Storm Warning 5, NWS New York, NY

March 14, 20174 counties in Connecticut; Bergen County, Essex County, Union County, New Jersey; Westchester County, New York

NWS New York, NY issued this winter storm warning at Mar 14, 2017, 7:59 AM EDT for 4 counties in Connecticut; Bergen County, Essex County, Union County, New Jersey; Westchester County, New York. It was in force for 7 hr. 40 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 14, 2017, 7:59 AM EDT (11:59 UTC)
Expired
Mar 14, 2017, 3:10 PM EDT
In force
7 hr
Issued by
NWS New York, NY

Counties Greater Bridgeport Planning Region, CT, Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT, Bergen County, NJ, Essex County, NJ, Union County, NJ, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 57 km from the middle of the area, began a volume at 12:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 14, 8:00 AM EDTSNOW 3.8Newark Airport, NJ
Mar 14, 8:02 AM EDTSNOW 3.5Newark Airport, NJFAA CONTRACT OBSERVER
Mar 14, 8:48 AM EDTHEAVY SNOW 6.2Englewood, NJ
Mar 14, 9:00 AM EDTHEAVY SNOW 7.6Franklin Lakes, NJ
Mar 14, 9:06 AM EDTHEAVY SNOW 7.8Ridgewood, NJ
Mar 14, 9:20 AM EDTHEAVY SNOW 7.5Somers, NY
Mar 14, 9:30 AM EDTHEAVY SNOW 9.2Franklin Lakes, NJ
Mar 14, 9:50 AM EDTHEAVY SNOW 6.5Somers, NY
Mar 14, 9:50 AM EDTHEAVY SNOW 6.5White Plains, NY
Mar 14, 9:50 AM EDTHEAVY SNOW 10Eastchester, NY
Mar 14, 9:56 AM EDTHEAVY SNOW 9.5Irvington, NY
Mar 14, 10:00 AM EDTSNOW 5.5Washington Township, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 8Ridgewood, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 8.3Mahwah, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 8.5Allendale, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 9Park Ridge, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 9.5Ramsey, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 10Irvington, NY
Mar 14, 10:00 AM EDTHEAVY SNOW 10Montvale, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 10Oakland, NJ
Mar 14, 10:00 AM EDTHEAVY SNOW 13Mahwah, NJ
Mar 14, 10:10 AM EDTHEAVY SNOW 10.5White Plains, NY
Mar 14, 10:30 AM EDTHEAVY SNOW 10.5Franklin Lakes, NJ
Mar 14, 11:00 AM EDTHEAVY SNOW 13Mount Kisco, NY
Mar 14, 11:14 AM EDTHEAVY SNOW 9.1Englewood, NJ
Mar 14, 11:25 AM EDTHEAVY SNOW 11.5Oakland, NJ
Mar 14, 11:35 AM EDTHEAVY SNOW 10.7Franklin Lakes, NJ
Mar 14, 12:00 PM EDTHEAVY SNOW 7White Plains, NY
Mar 14, 12:00 PM EDTHEAVY SNOW 9Somers, NY
Mar 14, 12:00 PM EDTHEAVY SNOW 9.3Rivervale, NJ
Mar 14, 12:00 PM EDTHEAVY SNOW 12.9Irvington, NY
Mar 14, 12:05 PM EDTHEAVY SNOW 12.9Irvington, NY
Mar 14, 12:13 PM EDTHEAVY SNOW 10Mahwah, NJ
Mar 14, 12:30 PM EDTHEAVY SNOW 9.5Cedar Grove, NJ
Mar 14, 12:30 PM EDTHEAVY SNOW 13.5Mount Kisco, NY
Mar 14, 12:33 PM EDTHEAVY SNOW 13.5Mount Kisco, NY
Mar 14, 2:00 PM EDTHEAVY SNOW 6.4Newark Airport, NJ
Mar 14, 2:00 PM EDTHEAVY SNOW 12.2Yorktown Heights, NY
Mar 14, 2:00 PM EDTHEAVY SNOW 13Eastchester, NY
Mar 14, 3:04 PM EDTHEAVY SNOW 14Mount Kisco, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 12.0 hours before the alert went out and 57 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2017-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2017-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1423 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

458 
WWUS41 KOKX 141159
WSWOKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service New York NY
759 AM EDT Tue Mar 14 2017

...Major Winter Storm for Interior Portions of the Tri-State into
This Evening...

CTZ007>010-NJZ104-106-108-NYZ071-142000-
/O.CAN.KOKX.BZ.W.0002.000000T0000Z-170315T0400Z/
/O.NEW.KOKX.WS.W.0005.170314T1159Z-170315T0400Z/
Northern Middlesex-Northern New London-Southern Fairfield-
Southern New Haven-Eastern Bergen-Eastern Essex-Eastern Union-
Southern Westchester-
759 AM EDT Tue Mar 14 2017

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

The National Weather Service in Upton has issued a Winter Storm
Warning for heavy snow and sleet, which is in effect until 
midnight EDT tonight. The Blizzard Warning has been cancelled.

* Locations...Interior southeastern and coastal southwestern 
Connecticut, eastern portions of northeastern New Jersey, and 
southern Westchester County.

* Hazard Types...Heavy Snow and Sleet, with near blizzard
  conditions, mainly this morning.

* Snow and Sleet Accumulations...4 to 14 inches of snow and sleet
  are expected, with highest amounts away from the coast. 

* Snowfall Rates...1 to 2 inches per hour at times.

* Timing...The snow will mix with and possibly change to sleet
  this morning. Rain may mix in at times closer to the coast. The
  precipitation will change back to all snow before ending this 
  evening.

* Impacts...Heavy Snow and sleet, with near blizzard conditions at
  times this morning. 

* Winds...Northeast winds 25 to 35 mph with gusts up to 50 mph,
  becoming northwest in the afternoon. Isolated gusts of 55 to 60
  mph are possible.

* Temperatures...Around 30.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel...keep an extra flashlight...food...
and water in your vehicle in case of an emergency.

&&

$$

NJZ006-NYZ072>075-176-177-142000-
/O.CAN.KOKX.BZ.W.0002.000000T0000Z-170315T0400Z/
/O.NEW.KOKX.WW.Y.0010.170314T1159Z-170315T0000Z/
Hudson-New York (Manhattan)-Bronx-Richmond (Staten Island)-
Kings (Brooklyn)-Northern Queens-Northern Nassau-
759 AM EDT Tue Mar 14 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...BLIZZARD WARNING IS CANCELLED...

The National Weather Service in Upton has issued a Winter Weather
Advisory for snow and sleet, which is in effect until 8 PM EDT 
this evening. The Blizzard Warning has been cancelled.

* Locations...New York City and Hudson and Northern Nassau  
  Counties.

* Hazard Types...Snow and Sleet.

* Accumulations...Snow and sleet accumulation of 4 to 8 inches.

* Snowfall Rates...2 to 4 inches per hour at times.

* Timing...The snow will change to sleet, then rain by midday. 
  The precipitation will change back to all snow before ending 
  this evening.

* Impacts...Snow and sleet, with hazardous conditions at times 
  this morning. 

* Winds...North 25 to 35 mph with gusts up to 50 mph.

* Temperatures...In the upper 20s.

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

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.

&&

$$

NYZ078-178-141300-
/O.CAN.KOKX.BZ.W.0002.000000T0000Z-170315T0400Z/
Northwestern Suffolk-Southern Queens-
759 AM EDT Tue Mar 14 2017

...BLIZZARD WARNING IS CANCELLED...

The National Weather Service in Upton has cancelled the Blizzard
Warning.

Precipitation has changed to all rain, therefore the warning has
been cancelled.

$$

CTZ011-012-142000-
/O.CAN.KOKX.WS.W.0004.000000T0000Z-170315T0400Z/
/O.NEW.KOKX.WW.Y.0010.170314T1159Z-170315T0000Z/
Southern Middlesex-Southern New London-
759 AM EDT Tue Mar 14 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Upton has issued a Winter Weather
Advisory for snow and sleet, which is in effect until 8 PM EDT 
this evening. The Winter Storm Warning has been cancelled.

* Locations...Southern Middlesex and Southern New London counties
  in Connecticut.

* Hazard Types...Snow and sleet.

* Snow Accumulations...3 to 7 inches.

* Snowfall Rates...1 to 2 inches per hour at times.

* * Timing...The snow will change to sleet, then rain by midday. 
  The precipitation will change back to all snow before ending 
  this evening.

* Impacts...Snow and sleet, with hazardous conditions at times
  this morning. 

* Winds...Northeast 20 to 30 mph with gusts up to 50 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.

&&

$$

NYZ079>081-179-141300-
/O.CAN.KOKX.WS.W.0004.000000T0000Z-170315T0400Z/
Northeastern Suffolk-Southwestern Suffolk-Southeastern Suffolk-
Southern Nassau-
759 AM EDT Tue Mar 14 2017

...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Upton has cancelled the Winter
Storm Warning.

The precipitation has changed to rain, therefore the winter storm
warning has been cancelled.

$$

CTZ005-006-NJZ002-004-103-105-107-NYZ067>070-142000-
/O.CON.KOKX.BZ.W.0002.000000T0000Z-170315T0400Z/
Northern Fairfield-Northern New Haven-Western Passaic-
Eastern Passaic-Western Bergen-Western Essex-Western Union-Orange-
Putnam-Rockland-Northern Westchester-
759 AM EDT Tue Mar 14 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

* Locations...Interior portions of Northeast New Jersey, the Lower
  Hudson Valley, and Southwestern Connecticut.

* Hazard Types...Heavy Snow and Blizzard Conditions.

* Snow and Sleet Accumulations...1 to 2 feet with locally higher
  amounts are possible.

* Snowfall Rates...2 to 4 inches per hour at times.

* Timing...The snow may mix with sleet at times later this morning
  into this afternoon. The precipitation will change back to all 
  snow before ending this evening.

* Impacts...Dangerous travel due to whiteout conditions at 
  times. Several roads may become impassable.

* Winds...North 15 to 25 mph with gusts up to 45 mph.

* Temperatures...In the mid 20s.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

Maloit
2 follow-up statements
474 
WWUS41 KOKX 141704
WSWOKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service New York NY
104 PM EDT Tue Mar 14 2017

...Winter Storm Gradually Winding Down This Afternoon...

CTZ011-012-141815-
/O.CAN.KOKX.WW.Y.0010.000000T0000Z-170315T0000Z/
Southern Middlesex-Southern New London-
104 PM EDT Tue Mar 14 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Upton has cancelled the Winter
Weather Advisory.

Rain will taper off late this afternoon. Some snow showers are
possible this evening, but little or no accumulation is expected.

Temperatures in the 20s overnight will result in freezing of
standing water and slush. 

$$

CTZ005-006-NJZ002-004-103-105-107-NYZ067>070-142200-
/O.EXT.KOKX.BZ.W.0002.000000T0000Z-170314T2200Z/
Northern Fairfield-Northern New Haven-Western Passaic-
Eastern Passaic-Western Bergen-Western Essex-Western Union-Orange-
Putnam-Rockland-Northern Westchester-
104 PM EDT Tue Mar 14 2017

...BLIZZARD WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...

* Locations...Interior portions of Northeast New Jersey, the 
  Lower Hudson Valley, and Southwestern Connecticut.

* Hazard Types...Snow and Sleet Tapering Off. Blowing Snow.  

* Snow and Sleet Accumulations...Another 1 to 2 inches early this
  afternoon with totals of 10 to 16 inches. Some locally higher amounts.

* Timing...Accumulating snow will end by mid to late afternoon. 

* Impacts...Dangerous travel.

* Winds...North 20 to 25 mph with gusts up to 40 mph.

* Temperatures...In the mid 20s.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

CTZ007>010-NJZ104-106-108-NYZ071-142200-
/O.EXT.KOKX.WS.W.0005.000000T0000Z-170314T2200Z/
Northern Middlesex-Northern New London-Southern Fairfield-
Southern New Haven-Eastern Bergen-Eastern Essex-Eastern Union-
Southern Westchester-
104 PM EDT Tue Mar 14 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* Locations...Interior southeastern and coastal southwestern 
  Connecticut, eastern portions of northeastern New Jersey, and 
  southern Westchester County.

* Hazard Types...Snow and Sleet Tapering Off.

* Snow and Sleet Accumulations...Another inch of snow is possible
  early this afternoon with totals of 4 to 12 inches of snow and
  sleet are expected. Highest amounts away from the coast.

* Timing...The snow will taper off by mid afternoon.

* Impacts...Snow and sleet.

* Winds...Northeast 20 to 30 mph with gusts up to 40 mph.

* Temperatures...Around 30.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel...keep an extra flashlight...food...
and water in your vehicle in case of an emergency.

&&

$$

NJZ006-NYZ072>075-176-177-142000-
/O.EXT.KOKX.WW.Y.0010.000000T0000Z-170314T2000Z/
Hudson-New York (Manhattan)-Bronx-Richmond (Staten Island)-
Kings (Brooklyn)-Northern Queens-Northern Nassau-
104 PM EDT Tue Mar 14 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* Locations...New York City and Hudson and Northern Nassau 
  Counties.

* Hazard Types...Snow and Sleet Tapering Off.

* Accumulations...Another inch of snow is possible early this
  afternoon before the precipitation ends. Total snow and sleet
  accumulation of 4 to 8 inches

* Timing...The snow and sleet will taper off by mid afternoon. A
  few snow showers and flurries are expected into this evening,
  but little or no accumulation is expected. 

* Impacts...Snow and sleet. Temperatures in the 20s overnight will
  result in freezing of standing water and slush.

* Winds...North 25 to 35 mph with gusts up to 45 mph.

* Temperatures...In the lower 30s.

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.

&&

$$
305 
WWUS41 KOKX 141910
WSWOKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service New York NY
310 PM EDT Tue Mar 14 2017

...Intense Nor'Easter Moving Across Eastern Long Island, But 
Accumulating Snow is Ending...

CTZ005-006-NJZ002-004-103-105-107-NYZ067>070-142015-
/O.CAN.KOKX.BZ.W.0002.000000T0000Z-170314T2200Z/
Northern Fairfield-Northern New Haven-Western Passaic-
Eastern Passaic-Western Bergen-Western Essex-Western Union-Orange-
Putnam-Rockland-Northern Westchester-
310 PM EDT Tue Mar 14 2017

...BLIZZARD WARNING IS CANCELLED...

The National Weather Service in Upton has cancelled the Blizzard
Warning.

Light Snow mixed with sleet will taper off this afternoon with
little additional accumulation. Snow totals of 12 to 18 inches of
snow has occurred with this storm.

$$

CTZ007>010-NJZ104-106-108-NYZ071-142015-
/O.CAN.KOKX.WS.W.0005.000000T0000Z-170314T2200Z/
Northern Middlesex-Northern New London-Southern Fairfield-
Southern New Haven-Eastern Bergen-Eastern Essex-Eastern Union-
Southern Westchester-
310 PM EDT Tue Mar 14 2017

...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Upton has cancelled the Winter
Storm Warning.

Rain, snow and sleet will taper off this afternoon with little 
additional accumulation. Snow totals of 6 to 12 inches of snow 
has occurred with this storm.

$$

NJZ006-NYZ072>075-176-177-142015-
/O.CAN.KOKX.WW.Y.0010.000000T0000Z-170314T2000Z/
Hudson-New York (Manhattan)-Bronx-Richmond (Staten Island)-
Kings (Brooklyn)-Northern Queens-Northern Nassau-
310 PM EDT Tue Mar 14 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Upton has cancelled the Winter
Weather Advisory.

Snow and sleet will taper off this afternoon with little 
additional accumulation. Snow totals of 4 to 8 inches of snow has
occurred with this storm.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this winter storm warning went out at Mar 14, 5:31 AM EDT, 2 hours 28 minutes earlier.

Area forecast discussion, Mar 14, 5:31 AM EDT, 2 hours 28 minutes before
Area Forecast Discussion
National Weather Service New York NY
531 AM EDT Tue Mar 14 2017

.SYNOPSIS...
Low pressure tracks from near the Mid Atlantic coast this
morning to southeastern Massachusetts by this evening, passing
near Montauk Point as it does so this afternoon. The storm then
tracks into Northern Maine tonight, then through the Canadian
Maritimes Wednesday and Thursday. High pressure moves through
the region Thursday and Friday. Another low pressure system may
affect the area Friday night through next weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
*** Heavy snow for the morning commute - Dangerous Driving
 Conditions with snow fall rates of 2-4 inches an hour likely***

*** Blizzard Conditions with 1-2 feet of snow across mainly
 interior portions of the Tri-State and 8-16 inches of snow and
 sleet across NYC/NW Long Island and Coastal SW CT ***

*** Near Blizzard Conditions with 4-12 inches of snow and sleet
 mainly this morning over coastal SE CT, the South Shore/Twin
 Forks of Long Island ***

Storm track continues to slide westward. As a result expect SE
portions of the area to mix with sleet and rain this morning and
possibly to all rain this afternoon. Sleet now expected to mix
in with snow over NYC/NW Long Island/SW CT and possibly lower
West Chester County reducing snow totals there. Still have the
potential for 2 feet of snow over the NE 1/4 of the CWA.

Strong Gusty winds remain a threat - with gusts of 40-50mph
expected CWA wide, with isolated gusts of 55 to 60 mph possible
over mainly coastal areas. The strongest gusts should be from
13-17z.

Precipitation changes to all snow before ending this evening.
It should be dry overnight, except for maybe some snow showers
moving in late tonight in far W Orange County.

Comments on models - NAM appears a western outlier, forecast
based on a GFS/SREF/WRF-NMM/WRF-ARW blend. 00Z ECMWF falls in
well with this cluster.

Concerns with forecast - with westward shift in track -
increasing potential for dry air to work in aloft - so
precipitation could end sooner than expected with a period of
freezing drizzle possible late this afternoon/evening. If this
occurs, then snow fall totals, especially over the NW 1/2 of the
CWA could need to be reduced by 6" or so. If NAM ends up being
correct, then even larger reductions would be needed over most
of the CWA. While banding appears most likely to the NW of NYC -
still not fully confident in location/orientation. As a result,
locally higher amounts are possible over portions of the lower
Hudson Valley and interior NE NJ/SW CT.

With temperatures falling below freezing tonight, any water
remaining on roadways could freeze, depending on how quickly
winds come down.

&&

.SHORT TERM /WEDNESDAY/...
Axis of closed upper low passes tomorrow with isolated to
scattered snow showers possible.

It will remain much below normal, with highs in the upper 20s to
lower 30s.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
By Wednesday night the powerful Nor'Easter will be moving into
the Canadian maritimes, with strong northwesterly flow developing
on the back side of the system. A secondary low-level trough will
move through the Northeast, providing enough instability and lift
for a few snow showers during the evening. Below normal
temperatures are expected with wind chill values in the single
digits Wednesday night. Below normal temperatures and strong and
gusty winds will continue through Thursday as the upper trough
slowly departs. By Friday, a weak deep layered ridge will pass
through the region, allowing winds to weaken and return to a
southwesterly direction. Warm advection should lead to a 5 to 10
degree overall increase in temperatures, though the values will
still remain below climatological normals. By the weekend, an
upper trough and attendant surface front move through from west to
east with a chance of snow and/or rain. Right now the system
appears to be weak, and uncertainty still exists with the track of
the low and amount of any precipitation that will fall.

&&

.AVIATION /09Z TUESDAY THROUGH SATURDAY/...
***HIGH IMPACT WEATHER INTO TONIGHT***

An intensifying storm will move up the East Coast today, pass
just southeast of Long Island late today, and move up into Maine
tonight. Some important forecast changes in the offing with the
09Z amendments based on warmer air advancing into the area
earlier and farther north than previously expected. As it
advances toward NYC metro and Long Island early this morning,
snow should mix with sleet, then may change to a rain/sleet for
a time at KJFK/KLGA/KISP/KGON, with timing details in the
individual TAF. Snow at the terminals just NW of there
(KEWR/KTEB/KHPN/KBDR) should mix with sleet mainly late this
morning into early afternoon. Meanwhile, NE winds should rapidly
increase early this morning to 30-35G40-45KT right along the
coast (KJFK/KLGA/KISP/KBDR/KGON), and 20-30G30-40KT inland.

May have to watch for a brief period of NW winds 40-45kt late
today as precipitation winds down and the low passes by.

...NY Metro Enhanced Aviation Weather Support...

Detailed information, including hourly TAF wind component fcsts,
can be found at: http://www.weather.gov/zny/n90

KJFK TAF Comments: Expect frequent AMD to fine tune weather and
flight category. Winds may be a few kt stronger than forecast
21Z-24Z. Total snowfall up to 10 inches.

KLGA TAF Comments: Expect frequent AMD to fine tune weather and
flight category. Winds may be a few kt stronger than forecast
21Z-24Z. Total snowfall up to 14 inches.

KEWR TAF Comments: Expect frequent AMD to fine tune weather and
flight category. Winds may be a few kt stronger than forecast
21Z-24Z. Total snowfall up to 17 inches.

KTEB TAF Comments: Expect frequent AMD to fine tune weather and
flight category. Winds may be a few kt stronger than forecast
21Z-24Z. Total snowfall up to 19 inches.

KHPN TAF Comments: Expect frequent AMD to fine tune weather and
flight category. Winds may be a few kt stronger than forecast
21Z-24Z. Total snowfall up to 18 inches.

KISP TAF Comments: Expect frequent AMD to fine tune weather and
flight category. Winds may be a few kt stronger than forecast
21Z-24Z. Total snowfall up to 8 inches.

.OUTLOOK FOR 06Z WEDNESDAY THROUGH SATURDAY...
.Late tonight...Becoming VFR. W winds G25KT.
.Wednesday...SCT snow showers with brief MVFR or lower conds
possible. NW winds G25-30KT.
.Thursday...VFR. NW winds G20-25KT.
.Friday...VFR.
.Friday night...Chance of snow mainly after midnight, with IFR
conds possible. .Saturday..IFR conditions possible. Chance of
snow, changing to rain by afternoon, then changing back to snow
inland and a rain/snow mix at the coast.

&&

.MARINE...
Strong low pressure tracks through the area waters today, passing in
the vicinity of Montauk Point in the mid to late afternoon hours.
Expect easterly winds and seas to ramp up quickly this morning.
Still thinking that all waters see storm force wind gusts. Flags
therefore remain unchanged. Looks like the strongest winds will
occur in a 3-4 hour period centered during the late morning hours.
Winds then flip to the north, then northwest during the afternoon.
Winds in the mixed layer quickly drop off with this shift, however
there is a chance that forecast gusts early this afternoon are a
little too low. By evening, gusts subside to gale force, however
there's still a chance that the ocean waters east of Moriches Inlet
could see a gust or two to 50 KT early on. Seas on the ocean
expected to build 15-20 FT with waves up to 10 FT even in Long
Island Sound.

For Wednesday and Wednesday night, a tight pressure gradient remains
over the waters, and gales still look likely at least on the ocean
waters and perhaps the eastern Sound and eastern bays as well. SCA
conditions otherwise for the remaining waters.

Winds slowly subside Thursday into Thursday night as a high pressure
ridge moves closer. SCA conds are likely at least through the
evening hours. A brief period of tranquil conditions follows for
Friday as the ridge shifts through, then a return to SCA conds is
possible on Saturday with the approach of the next system.

&&

.HYDROLOGY...
1.75 to 2 inches of liquid equivalent precipitation is expected
through this evening. The only hydrologic issues area possible
over coastal SE CT/Southern Nassau and most of Suffolk County
where a mi with rain is expected and a change to all rain quite
possible (highly likely S shore of Long Island). Minor flooding
is possible over this area, especially if there is a completer
change over to all rain. Otherwise...no hydrologic problems are
anticipated.

No hydrologic issues are anticipated from Wednesday through
Friday.

&&

.TIDES/COASTAL FLOODING...
With a storm track now expected to be close to the coast, confidence
is increasing in more widespread moderate coastal flooding for the
region this morning/afternoon high tidal cycle. Surge amounts are
generally 1/4 to 1/2 ft higher than previous forecasts.

Widespread moderate coastal flooding is expected across NY/NJ harbor
and along Western Long Island Sound...and for the Eastern bays of LI.
Generally 1 to 2 ft of inundation is expected here.

Localized major flooding is possible along the most vulnerable
southern bay locales of Western Long Island...with up to 3 ft of
inundation.

Some minor coastal flooding concerns could linger with tonight's
high tide...particularly along southern bays of LI.

The elevated water levels and a longshore sweep of 6 to 10 ft
breaking surf during the morning/afternoon high tide cycle is
expected to result in areas of dune erosion with localized washovers
possible along the Atlantic ocean beachfront. Less significant beach
erosion issues will likely linger into Wednesday due to residual
southerly swells of 6 to 10 ft.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Winter Storm Warning until midnight EDT tonight for CTZ011-012.
     Blizzard Warning until midnight EDT tonight for CTZ005>010.
     Coastal Flood Warning from noon today to 4 PM EDT this
     afternoon for CTZ009-010.
NY...Coastal Flood Warning from 9 AM this morning to 4 PM EDT this
     afternoon for NYZ079-081.
     Winter Storm Warning until midnight EDT tonight for NYZ079>081-
     179.
     Blizzard Warning until midnight EDT tonight for NYZ067>075-078-
     176>178.
     Coastal Flood Warning until noon EDT today for NYZ074-075-178.
     Coastal Flood Warning from noon today to 4 PM EDT this
     afternoon for NYZ071-073-078-176-177.
     Coastal Flood Warning until 2 PM EDT this afternoon for NYZ080-
     179.
     Coastal Flood Advisory until 4 PM EDT this afternoon for
     NYZ072.
NJ...Blizzard Warning until midnight EDT tonight for NJZ002-004-006-
     103>108.
     Coastal Flood Warning until noon EDT today for NJZ006-106-108.
MARINE...Storm Warning until 6 PM EDT this evening for ANZ330-335-338-
     340-345-350-353-355.

&&

SYNOPSIS...MD/Maloit/JM
NEAR TERM...Maloit
SHORT TERM...Maloit
LONG TERM...MD
AVIATION...Goodman
MARINE...JC/MD/PW
HYDROLOGY...MD/Maloit
TIDES/COASTAL FLOODING...
Hazardous weather outlook, Mar 14, 4:59 AM EDT, 3 hours before
Hazardous Weather Outlook
National Weather Service New York NY
459 AM EDT Tue Mar 14 2017

CTZ005>008-NJZ002-004-103>105-107-NYZ067>070-150900-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Western Passaic-Eastern Passaic-Western Bergen-
Eastern Bergen-Western Essex-Western Union-Orange-Putnam-Rockland-
Northern Westchester-
459 AM EDT Tue Mar 14 2017

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

This Hazardous Weather Outlook is for southern Connecticut,
northeast New Jersey and southeast New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Blizzard Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NJZ006-106-108-NYZ074-075-178-150900-
Hudson-Eastern Essex-Eastern Union-Richmond (Staten Island)-
Kings (Brooklyn)-Southern Queens-
459 AM EDT Tue Mar 14 2017

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...COASTAL FLOOD WARNING IN EFFECT FROM 8 AM THIS MORNING TO NOON
EDT TODAY...

This Hazardous Weather Outlook is for northeast New Jersey and
southeast New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Blizzard Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ009-010-NYZ071-073-078-176-177-150900-
Southern Fairfield-Southern New Haven-Southern Westchester-Bronx-
Northwestern Suffolk-Northern Queens-Northern Nassau-
459 AM EDT Tue Mar 14 2017

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...COASTAL FLOOD WARNING IN EFFECT FROM NOON TODAY TO 4 PM EDT THIS
AFTERNOON...

This Hazardous Weather Outlook is for southern Connecticut and
southeast New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Blizzard Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ072-150900-
New York (Manhattan)-
459 AM EDT Tue Mar 14 2017

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 4 PM
EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Blizzard Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ079-081-150900-
Northeastern Suffolk-Southeastern Suffolk-
459 AM EDT Tue Mar 14 2017

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...COASTAL FLOOD WARNING IN EFFECT FROM 9 AM THIS MORNING TO 4 PM
EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ080-179-150900-
Southwestern Suffolk-Southern Nassau-
459 AM EDT Tue Mar 14 2017

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...COASTAL FLOOD WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ011-012-150900-
Southern Middlesex-Southern New London-
459 AM EDT Tue Mar 14 2017

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

This Hazardous Weather Outlook is for southern Connecticut.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

ANZ330-335-338-340-345-350-353-355-150900-
Long Island Sound East of New Haven CT/Port Jefferson NY-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-Peconic and Gardiners Bays-
South Shore Bays from Jones Inlet through Shinnecock Bay-
Moriches Inlet NY to Montauk Point NY out 20 nm-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
Sandy Hook NJ to Fire Island Inlet NY out 20 nm-
459 AM EDT Tue Mar 14 2017

...STORM WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Storm Warning.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches...warnings and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

Maloit

In the hours before

Local storm report, Mar 14, 7:21 AM EDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
721 AM EDT TUE MAR 14 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 AM     SNOW             NORTH BABYLON           40.72N  73.32W
03/14/2017  M3.5 INCH        SUFFOLK            NY   SOCIAL MEDIA

&&

JP
Local storm report, Mar 14, 7:22 AM EDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
722 AM EDT TUE MAR 14 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 AM     SNOW             SELDEN                  40.87N  73.05W
03/14/2017  M3.5 INCH        SUFFOLK            NY   BROADCAST MEDIA

&&

JP
Local storm report, Mar 14, 7:23 AM EDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
723 AM EDT TUE MAR 14 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 AM     SNOW             WOODBURY                40.81N  73.47W
03/14/2017  M3.5 INCH        NASSAU             NY   BROADCAST MEDIA

&&

JP
Local storm report, Mar 14, 7:24 AM EDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
724 AM EDT TUE MAR 14 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 AM     SNOW             NEW HAVEN               41.31N  72.92W
03/14/2017  M2.5 INCH        NEW HAVEN          CT   SOCIAL MEDIA

&&

JP
Local storm report, Mar 14, 7:28 AM EDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
728 AM EDT TUE MAR 14 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0720 AM     SNOW             WEST MILFORD            41.11N  74.40W
03/14/2017  M5.5 INCH        PASSAIC            NJ   TRAINED SPOTTER

&&

JP
Local storm report, Mar 14, 7:59 AM EDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
759 AM EDT TUE MAR 14 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0758 AM     SNOW             MOUNT SINAI             40.94N  73.02W
03/14/2017  M2.7 INCH        SUFFOLK            NY   NWS EMPLOYEE

&&

JP

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 14, 7:59 AM EDTWinter Weather AdvisoryOKXLower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region7 hr
Mar 14, 8:55 AM EDTWind AdvisoryOKXGreater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region9 hr
Mar 14, 2:03 PM EDTAreal Flood AdvisoryOKXLower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region3 hr
Mar 14, 10:11 AM EDTAreal Flood AdvisoryOKXNassau, Queens, Suffolk3 hr
Mar 14, 3:48 PM EDTGale WarningOKX52 hr

Nearby

Winter Storm Warnings in Connecticut, 2017Winter Storm Warnings in New Jersey, 2017Winter Storm Warnings in New York, 2017Every winter storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.