Alert archive / Connecticut / Winter Storm Warnings in 2016

Winter Storm Warning 4, NWS New York, NY

March 20, 2016Southeastern Connecticut Planning Region, Connecticut; Suffolk County, New York

NWS New York, NY issued this winter storm warning at Mar 20, 2016, 3:27 AM EDT for Southeastern Connecticut Planning Region, Connecticut; Suffolk County, New York. It took effect at Mar 20, 2016, 6:00 PM EDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 20, 2016, 3:27 AM EDT (07:27 UTC)
In effect from
Mar 20, 2016, 6:00 PM EDT
Expired
Mar 21, 2016, 3:40 AM EDT
In force
10 hr
Issued by
NWS New York, NY

Counties Southeastern Connecticut Planning Region, CT, Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 56 km from the middle of the area, began a volume at 07:33 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 7.5 hours before the alert went out and 56 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 2016-03-20Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2016-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -76 square meters per square second.1939587897117136Sfc1 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
2502 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
-76 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

239 
WWUS41 KOKX 200727
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
327 AM EDT SUN MAR 20 2016

...WINTRY WEATHER FOR THE START OF SPRING...

CTZ008-012-NYZ079-081-201600-
/O.UPG.KOKX.WS.A.0002.160320T1600Z-160321T1000Z/
/O.NEW.KOKX.WS.W.0004.160320T2200Z-160321T1400Z/
NORTHERN NEW LONDON-SOUTHERN NEW LONDON-NORTHEASTERN SUFFOLK-
SOUTHEASTERN SUFFOLK-
327 AM EDT SUN MAR 20 2016

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 AM
EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN UPTON HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 10 AM EDT MONDAY. 

* LOCATIONS...EASTERN SUFFOLK COUNTY IN NEW YORK AND NEW LONDON
  COUNTY IN CONNECTICUT.

* HAZARD TYPES...MODERATE TO OCCASIONALLY HEAVY SNOW.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS EVENING
  WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF MONDAY
  MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND SNOW
  COVERED ROADWAYS.

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.

&&

$$

CTZ006-010-201600-
/O.EXB.KOKX.WW.Y.0010.160320T2200Z-160321T1400Z/
NORTHERN NEW HAVEN-SOUTHERN NEW HAVEN-
327 AM EDT SUN MAR 20 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
10 AM EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN UPTON HAS ISSUED A WINTER WEATHER
ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO
10 AM EDT MONDAY.

* LOCATIONS...NEW HAVEN COUNTY.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS EVENING
  WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF MONDAY
  MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND SNOW
  COVERED ROADWAYS.

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.

&&

$$

CTZ007-011-NYZ078-080-177-179-201600-
/O.EXT.KOKX.WW.Y.0010.160320T2200Z-160321T1400Z/
NORTHERN MIDDLESEX-SOUTHERN MIDDLESEX-NORTHWESTERN SUFFOLK-
SOUTHWESTERN SUFFOLK-NORTHERN NASSAU-SOUTHERN NASSAU-
327 AM EDT SUN MAR 20 2016

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING
TO 10 AM EDT MONDAY...

* LOCATIONS...MIDDLESEX COUNTY IN CONNECTICUT...WESTERN SUFFOLK
  AND NASSAU COUNTIES IN NEW YORK.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...3 TO 5 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS EVENING
  WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF MONDAY
  MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND SNOW
  COVERED ROADWAYS.

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.

&&

$$
4 follow-up statements
817 
WWUS41 KOKX 201411
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
1011 AM EDT SUN MAR 20 2016

...WINTRY WEATHER FOR THE START OF SPRING...

CTZ008-012-NYZ079-081-202215-
/O.CON.KOKX.WS.W.0004.160320T2200Z-160321T1400Z/
NORTHERN NEW LONDON-SOUTHERN NEW LONDON-NORTHEASTERN SUFFOLK-
SOUTHEASTERN SUFFOLK-
1011 AM EDT SUN MAR 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 10 AM EDT MONDAY...

* LOCATIONS...EASTERN SUFFOLK COUNTY IN NEW YORK AND NEW LONDON 
  COUNTY IN CONNECTICUT.

* HAZARD TYPES...MODERATE TO OCCASIONALLY HEAVY SNOW.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS 
  EVENING WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF 
  MONDAY MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$

CTZ006-007-010-011-NYZ078-080-177-179-202215-
/O.CON.KOKX.WW.Y.0010.160320T2200Z-160321T1400Z/
NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-SOUTHERN NEW HAVEN-
SOUTHERN MIDDLESEX-NORTHWESTERN SUFFOLK-SOUTHWESTERN SUFFOLK-
NORTHERN NASSAU-SOUTHERN NASSAU-
1011 AM EDT SUN MAR 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 10 AM EDT MONDAY...

* LOCATIONS...MIDDLESEX COUNTY IN CONNECTICUT...WESTERN SUFFOLK 
  AND NASSAU COUNTIES IN NEW YORK.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...2 TO 6 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS 
  EVENING WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF 
  MONDAY MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$

MALOIT
372 
WWUS41 KOKX 201912
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
312 PM EDT SUN MAR 20 2016

...WINTRY WEATHER FOR THE START OF SPRING...

CTZ008-012-NYZ079-081-210315-
/O.CON.KOKX.WS.W.0004.160320T2200Z-160321T1400Z/
NORTHERN NEW LONDON-SOUTHERN NEW LONDON-NORTHEASTERN SUFFOLK-
SOUTHEASTERN SUFFOLK-
312 PM EDT SUN MAR 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EDT
MONDAY...

* LOCATIONS...EASTERN SUFFOLK COUNTY IN NEW YORK AND NEW LONDON 
  COUNTY IN CONNECTICUT.

* HAZARD TYPES...MODERATE TO OCCASIONALLY HEAVY SNOW.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS 
  EVENING WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF 
  MONDAY MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$

CTZ006-007-010-011-NYZ078-080-177-179-210315-
/O.CON.KOKX.WW.Y.0010.160320T2200Z-160321T1400Z/
NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-SOUTHERN NEW HAVEN-
SOUTHERN MIDDLESEX-NORTHWESTERN SUFFOLK-SOUTHWESTERN SUFFOLK-
NORTHERN NASSAU-SOUTHERN NASSAU-
312 PM EDT SUN MAR 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT
MONDAY...

* LOCATIONS...MIDDLESEX COUNTY IN CONNECTICUT...WESTERN SUFFOLK 
  AND NASSAU COUNTIES IN NEW YORK.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...2 TO 6 INCHES.

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

* TIMING...A MIX OF LIGHT RAIN AND SNOW AT THE ONSET THIS 
  EVENING WILL QUICKLY CHANGE TO ALL SNOW...THEN TAPER OFF 
  MONDAY MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$

MALOIT
365 
WWUS41 KOKX 210039
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
839 PM EDT SUN MAR 20 2016

...WINTRY WEATHER FOR THE START OF SPRING...

CTZ008-012-NYZ079-081-210900-
/O.CON.KOKX.WS.W.0004.000000T0000Z-160321T1400Z/
NORTHERN NEW LONDON-SOUTHERN NEW LONDON-NORTHEASTERN SUFFOLK-
SOUTHEASTERN SUFFOLK-
839 PM EDT SUN MAR 20 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EDT
MONDAY...

* LOCATIONS...EASTERN SUFFOLK COUNTY IN NEW YORK AND NEW LONDON 
  COUNTY IN CONNECTICUT.

* HAZARD TYPES...MODERATE TO OCCASIONALLY HEAVY SNOW.

* SNOW ACCUMULATIONS...4 TO 8 INCHES.

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

* TIMING...SNOW CONTINUES OVERNIGHT...THEN TAPERS OFF MONDAY
  MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$

CTZ006-007-010-011-NYZ078-080-177-179-210900-
/O.CON.KOKX.WW.Y.0010.000000T0000Z-160321T1400Z/
NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-SOUTHERN NEW HAVEN-
SOUTHERN MIDDLESEX-NORTHWESTERN SUFFOLK-SOUTHWESTERN SUFFOLK-
NORTHERN NASSAU-SOUTHERN NASSAU-
839 PM EDT SUN MAR 20 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT
MONDAY...

* LOCATIONS...MIDDLESEX AND NEW HAVEN COUNTIES IN
  CONNECTICUT...WESTERN SUFFOLK AND NASSAU COUNTIES IN NEW YORK.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...2 TO 6 INCHES.

* VISIBILITIES...ONE HALF MILE AT TIMES.

* TIMING...SNOW CONTINUES OVERNIGHT...THEN TAPERS OFF MONDAY
  MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$
746 
WWUS41 KOKX 210740
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
340 AM EDT MON MAR 21 2016

...WINTRY WEATHER COMES TO AN END THIS MORNING...

CTZ008-012-NYZ079-081-211400-
/O.CAN.KOKX.WS.W.0004.000000T0000Z-160321T1400Z/
/O.EXA.KOKX.WW.Y.0010.000000T0000Z-160321T1400Z/
NORTHERN NEW LONDON-SOUTHERN NEW LONDON-NORTHEASTERN SUFFOLK-
SOUTHEASTERN SUFFOLK-
340 AM EDT MON MAR 21 2016

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
...WINTER STORM WARNING IS CANCELLED...

* LOCATIONS...EASTERN SUFFOLK COUNTY IN NEW YORK AND NEW LONDON 
  COUNTY IN CONNECTICUT.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...3 TO 5 INCHES.

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

* TIMING...SNOW TAPERS OFF BY LATE MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

&&

$$

NYZ177-179-210845-
/O.CAN.KOKX.WW.Y.0010.000000T0000Z-160321T1400Z/
NORTHERN NASSAU-SOUTHERN NASSAU-
340 AM EDT MON MAR 21 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN UPTON HAS CANCELLED THE WINTER
WEATHER ADVISORY.

LIGHT SNOW WILL COME TO AND END ACROSS NASSAU COUNTY BY MID
MORNING WITH TOTAL SNOW ACCUMULATIONS OF AN INCH OR TWO.

$$

CTZ006-007-010-011-NYZ078-080-211400-
/O.CON.KOKX.WW.Y.0010.000000T0000Z-160321T1400Z/
NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-SOUTHERN NEW HAVEN-
SOUTHERN MIDDLESEX-NORTHWESTERN SUFFOLK-SOUTHWESTERN SUFFOLK-
340 AM EDT MON MAR 21 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* LOCATIONS...MIDDLESEX AND NEW HAVEN COUNTIES IN CONNECTICUT...
  WESTERN SUFFOLK COUNTY IN NEW YORK.

* HAZARD TYPES...SNOW.

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

* TIMING...SNOW TAPERS OFF BY MID MORNING.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES AND 
  SNOW COVERED ROADWAYS.

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.

&&

$$

Nearby

Winter Storm Warnings in Connecticut, 2016Winter Storm Warnings in New York, 2016Every winter storm warning in 2016

Sources

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