Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 49, NWS New York, NY

July 18, 20124 counties in New York; 5 counties in New Jersey

NWS New York, NY issued this severe thunderstorm warning at Jul 18, 2012, 4:41 PM EDT for 4 counties in New York; 5 counties in New Jersey. It was in force for 49 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 18, 2012, 4:41 PM EDT (20:41 UTC)
Expired
Jul 18, 2012, 5:30 PM EDT
In force
49 min
Issued by
NWS New York, NY
Area
Storm-based polygon

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Queens County, NY

The radar

The Brookhaven radar (KOKX), 95 km from the middle of the area, began a volume at 20:43 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
Jul 18, 4:45 PM EDTHAIL 0.88East Newark, NJFIRE DEPT RESCUE
Jul 18, 4:50 PM EDTHAIL 11 N Morris Park, NYESTIMATED QUARTER SIZE HAIL JUST WEST OF JAMAICA STATION

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 18, 12:20 PM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.7 hours before the alert went out and 95 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 12:00Z on 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2129 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 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
2129 J/kg
Mixed-layer CIN
-147 J/kg
Mixed-layer LCL
1491 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
95 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.

285 
WUUS51 KOKX 182041
SVROKX
NJC003-013-017-031-039-NYC005-047-061-081-182130-
/O.NEW.KOKX.SV.W.0049.120718T2041Z-120718T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
441 PM EDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  QUEENS COUNTY IN SOUTHEAST NEW YORK...
  PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  NORTHERN UNION COUNTY IN NORTHEAST NEW JERSEY...
  NEW YORK (MANHATTAN) COUNTY IN SOUTHEAST NEW YORK...
  BRONX COUNTY IN SOUTHEAST NEW YORK...
  SOUTHEASTERN BERGEN COUNTY IN NORTHEAST NEW JERSEY...
  ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  HUDSON COUNTY IN NORTHEAST NEW JERSEY...
  KINGS (BROOKLYN) COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 530 PM EDT...

* AT 439 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  HARRISON...AND MOVING EAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  KEARNY...PASSAIC...LYNDHURST...RUTHERFORD...JERSEY CITY...
  SECAUCUS...TETERBORO...HACKENSACK...UNION CITY...HOBOKEN...BATTERY
  PARK...RIDGEFIELD...SOHO...PARK SLOPE...EAST VILLAGE...LOWER EAST
  SIDE...BROOKLYN HEIGHTS...UPPER WEST SIDE...MIDTOWN MANHATTAN...
  FORT LEE...ENGLEWOOD...CENTRAL PARK...MORNINGSIDE HEIGHTS...CROWN
  HEIGHTS...LONG ISLAND CITY...HARLEM...ASTORIA...TRIBOROUGH
  BRIDGE...RFK BRIDGE...MOTT HAVEN...RIVERDALE...JACKSON HEIGHTS...
  LAGUARDIA AIRPORT...FOREST HILLS...CLEARVIEW EXPRESSWAY...
  WHITESTONE...THROGS NECK BRIDGE...OZONE PARK...KENNEDY AIRPORT...
  JAMAICA...HOWARD BEACH...FLUSHING...EAST TREMONT...CO-OP CITY...
  CITY ISLAND AND BAYSIDE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM WEDNESDAY
EVENING FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

&&

LAT...LON 4089 7431 4091 7384 4089 7384 4087 7376
      4084 7376 4083 7381 4078 7376 4064 7375
      4066 7403 4068 7403 4069 7401 4070 7403
      4068 7406 4066 7406 4068 7441
TIME...MOT...LOC 2041Z 266DEG 16KT 4076 7416

$$
SEARS
1 follow-up statement
787 
WWUS51 KOKX 182125
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
525 PM EDT WED JUL 18 2012

NJC003-013-017-031-039-NYC005-047-061-081-182134-
/O.EXP.KOKX.SV.W.0049.000000T0000Z-120718T2130Z/
KINGS (BROOKLYN) NY-HUDSON NJ-ESSEX NJ-BERGEN NJ-BRONX NY-
NEW YORK (MANHATTAN) NY-UNION NJ-PASSAIC NJ-QUEENS NY-
525 PM EDT WED JUL 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR QUEENS...PASSAIC...NORTHERN
UNION...NEW YORK (MANHATTAN)...BRONX...SOUTHEASTERN BERGEN...ESSEX...
HUDSON AND KINGS (BROOKLYN) COUNTIES WILL EXPIRE AT 530 PM EDT...

THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM WEDNESDAY
EVENING FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

LAT...LON 4089 7431 4091 7384 4089 7384 4087 7376
      4084 7376 4083 7381 4078 7376 4064 7375
      4066 7403 4068 7403 4069 7401 4070 7403
      4068 7406 4066 7406 4068 7441
TIME...MOT...LOC 2124Z 266DEG 16KT 4077 7391

$$
SEARS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 12:33 PM EDTSevere Thunderstorm WarningOKXWestchester42 min
Jul 18, 12:36 PM EDTSpecial Marine WarningOKX39 min
Jul 18, 12:39 PM EDTAreal Flood AdvisoryOKXWestchester81 min
Jul 18, 1:12 PM EDTSpecial Marine WarningOKX63 min
Jul 18, 1:12 PM EDTSevere Thunderstorm WarningOKXOrange63 min
Jul 18, 1:15 PM EDTAreal Flood AdvisoryOKXOrange90 min
Jul 18, 1:19 PM EDTAreal Flood AdvisoryOKXBronx, Nassau, Queens69 min
Jul 18, 1:19 PM EDTSpecial Weather StatementOKXBronx56 min
Jul 18, 2:00 PM EDTAreal Flood AdvisoryOKXPutnam, Rockland, Westchester2 hr
Jul 18, 2:26 PM EDTSevere Thunderstorm WarningOKXOrange, Rockland64 min
Jul 18, 2:36 PM EDTAreal Flood AdvisoryOKXOrange84 min
Jul 18, 2:50 PM EDTSpecial Marine WarningOKX40 min
Jul 18, 2:55 PM EDTAreal Flood AdvisoryOKXWestchester72 min
Jul 18, 2:57 PM EDTSevere Thunderstorm WarningOKXWestchester33 min
Jul 18, 2:59 PM EDTSpecial Marine WarningOKX61 min
Jul 18, 3:23 PM EDTSevere Thunderstorm WarningOKXNassau, Suffolk52 min
Jul 18, 3:35 PM EDTSpecial Marine WarningOKX25 min
Jul 18, 3:54 PM EDTSpecial Weather StatementOKXBronx, New York66 min
Jul 18, 3:59 PM EDTSpecial Marine WarningOKX46 min
Jul 18, 4:10 PM EDTAreal Flood AdvisoryOKXBronx, Kings, Nassau, New York, Queens, Richmond and 1 more2 hr
Jul 18, 4:15 PM EDTSevere Thunderstorm WarningOKXNassau, Queens, Suffolk60 min
Jul 18, 4:34 PM EDTFlash Flood WarningOKXBronx, Kings, Nassau, New York, Queens116 min
Jul 18, 5:08 PM EDTSpecial Marine WarningOKX52 min
Jul 18, 7:00 PM EDTSpecial Marine WarningOKX45 min
Jul 18, 7:09 PM EDTSpecial Marine WarningOKX66 min
Jul 18, 7:58 PM EDTSpecial Marine WarningOKX47 min
Jul 18, 4:13 PM EDTAreal Flood AdvisoryOKXBergen, Essex, Hudson, Union2 hr
Jul 18, 4:37 PM EDTFlash Flood WarningOKXBergen, Essex, Hudson, Union113 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2012Severe Thunderstorm Warnings in New York, 2012Every severe thunderstorm warning in 2012

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.