Alert archive / New Jersey / Wind Chill Warnings in 2015

Wind Chill Warning 2, NWS New York, NY

February 20, 2015Passaic County, New Jersey; Orange County, New York

NWS New York, NY issued this wind chill warning at Feb 20, 2015, 3:59 AM EST for Passaic County, New Jersey; Orange County, New York. It was in force for 6 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
Feb 20, 2015, 3:59 AM EST (08:59 UTC)
Expired
Feb 20, 2015, 10:00 AM EST
In force
6 hr
Issued by
NWS New York, NY

Counties Passaic County, NJ, Orange County, NY

The radar

The Brookhaven radar (KOKX), 127 km from the middle of the area, began a volume at 09:04 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, 9.0 hours before the alert went out and 127 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 2015-02-20Temperature 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 2015-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -69 square meters per square second.19395878Sfc1 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
1726 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-69 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

604 
WWUS41 KOKX 200859
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
359 AM EST FRI FEB 20 2015

...WIND CHILL VALUES AS LOW AS 30 BELOW ZERO THIS MORNING...

NJZ002-NYZ067-201500-
/O.UPG.KOKX.WC.Y.0005.000000T0000Z-150220T1500Z/
/O.NEW.KOKX.WC.W.0002.150220T0859Z-150220T1500Z/
WESTERN PASSAIC-ORANGE-
359 AM EST FRI FEB 20 2015

...WIND CHILL WARNING IN EFFECT UNTIL 10 AM EST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL 10 AM EST THIS MORNING. THE
WIND CHILL ADVISORY IS NO LONGER IN EFFECT.

* LOCATIONS...ORANGE COUNTY IN SOUTHEAST NEW YORK...AND WESTERN
  PASSAIC COUNTY IN NORTHEAST NEW JERSEY. 

* HAZARD TYPES...DANGEROUS WIND CHILLS. 

* WIND CHILLS...AS LOW AS 25 TO 30 BELOW DUE TO TEMPERATURES ZERO
  TO 5 BELOW...AND WINDS WEST 10 TO 20 MPH. 

* TIMING...THIS MORNING. 

* IMPACTS...DANGEROUS COLD TO THOSE VENTURING OUTSIDE INCLUDING
  PETS AND LIVESTOCK. PROLONGED EXPOSURE WILL CAUSE FROSTBITE AND
  LEAD TO HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. 
THIS WILL RESULT IN FROSTBITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

&&

$$

CTZ005>008-NYZ068>070-201500-
/O.CON.KOKX.WC.Y.0005.000000T0000Z-150220T1500Z/
NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-
NORTHERN NEW LONDON-PUTNAM-ROCKLAND-NORTHERN WESTCHESTER-
359 AM EST FRI FEB 20 2015

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* LOCATIONS...PUTNAM...ROCKLAND AND NORTHERN WESTCHESTER COUNTIES
  IN SOUTHEAST NEW YORK...AND ALL OF INTERIOR SOUTHERN
  CONNECTICUT.

* HAZARD TYPES...HAZARDOUS WIND CHILLS. 

* WIND CHILLS...AS LOW AS 15 TO 24 BELOW DUE TO TEMPERATURES 5
  BELOW TO 5 ABOVE ZERO...AND WINDS WEST 10 TO 15 MPH. 

* TIMING...THIS MORNING. 

* IMPACTS...DANGEROUS COLD TO THOSE VENTURING OUTSIDE INCLUDING 
  PETS AND LIVESTOCK. PROLONGED EXPOSURE MAY CAUSE FROSTBITE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

&&

$$

CTZ009>012-NJZ004-006-103>108-NYZ071>075-078>081-176>179-201500-
/O.CON.KOKX.WC.Y.0005.000000T0000Z-150220T1500Z/
SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN-SOUTHERN MIDDLESEX-
SOUTHERN NEW LONDON-EASTERN PASSAIC-HUDSON-WESTERN BERGEN-
EASTERN BERGEN-WESTERN ESSEX-EASTERN ESSEX-WESTERN UNION-
EASTERN UNION-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX-
RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-NORTHWESTERN SUFFOLK-
NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK-SOUTHEASTERN SUFFOLK-
NORTHERN QUEENS-NORTHERN NASSAU-SOUTHERN QUEENS-SOUTHERN NASSAU-
359 AM EST FRI FEB 20 2015

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* LOCATIONS...NEW YORK CITY AND SURROUNDING SUBURBS...LONG 
  ISLAND...COASTAL CONNECTICUT...AND MUCH OF NORTHEAST NEW 
  JERSEY.

* HAZARD TYPES...HAZARDOUS WIND CHILLS. 

* WIND CHILL...AS LOW AS 15 TO 23 BELOW DUE TO TEMPERATURES ZERO TO
  5 ABOVE...AND WINDS WEST 15 TO 25 MPH.

* TIMING...THIS MORNING. 

* IMPACTS...DANGEROUS COLD TO THOSE VENTURING OUTSIDE INCLUDING 
  PETS AND LIVESTOCK. PROLONGED EXPOSURE MAY CAUSE FROSTBITE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

&&

$$
1 follow-up statement
830 
WWUS41 KOKX 201453
WSWOKX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW YORK NY
953 AM EST FRI FEB 20 2015

...WIND CHILL WARNINGS AND ADVISORIES WILL EXPIRE AT 
10 AM EST THIS MORNING...

NJZ002-NYZ067-201600-
/O.EXP.KOKX.WC.W.0002.000000T0000Z-150220T1500Z/
WESTERN PASSAIC-ORANGE-
953 AM EST FRI FEB 20 2015

...WIND CHILL WARNING WILL EXPIRE AT 10 AM EST THIS MORNING...

WIND CHILL VALUES WILL STILL RANGE MOSTLY ZERO TO TEN BELOW ZERO
FOR THE REMAINDER OF THE DAY.

$$

CTZ005>008-NYZ068>070-201600-
/O.EXP.KOKX.WC.Y.0005.000000T0000Z-150220T1500Z/
NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-
NORTHERN NEW LONDON-PUTNAM-ROCKLAND-NORTHERN WESTCHESTER-
953 AM EST FRI FEB 20 2015

...WIND CHILL ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING...

WIND CHILL VALUES WILL STILL RANGE MOSTLY ZERO TO TEN BELOW ZERO
FOR THE REMAINDER OF THE DAY.

$$

CTZ009>012-NJZ004-006-103>108-NYZ071>075-078>081-176>179-201600-
/O.EXP.KOKX.WC.Y.0005.000000T0000Z-150220T1500Z/
SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN-SOUTHERN MIDDLESEX-
SOUTHERN NEW LONDON-EASTERN PASSAIC-HUDSON-WESTERN BERGEN-
EASTERN BERGEN-WESTERN ESSEX-EASTERN ESSEX-WESTERN UNION-
EASTERN UNION-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX-
RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-NORTHWESTERN SUFFOLK-
NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK-SOUTHEASTERN SUFFOLK-
NORTHERN QUEENS-NORTHERN NASSAU-SOUTHERN QUEENS-SOUTHERN NASSAU-
953 AM EST FRI FEB 20 2015

...WIND CHILL ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING...

WIND CHILL VALUES WILL STILL RANGE MOSTLY ZERO TO TEN BELOW ZERO
FOR THE REMAINDER OF THE DAY.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 4:20 PM ESTWinter Storm WatchOKXPassaic12 hr
Feb 20, 4:20 PM ESTWinter Weather AdvisoryOKXBergen, Essex, Hudson, Passaic, Union43 hr
Feb 20, 3:58 AM ESTSmall Craft AdvisoryOKX17 hr

Nearby

Wind Chill Warnings in New Jersey, 2015Wind Chill Warnings in New York, 2015Every wind chill warning in 2015

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.