Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 80, NWS New York, NY

September 8, 20125 counties in New Jersey; Orange County, Richmond County, Rockland County, New York

NWS New York, NY issued this severe thunderstorm warning at Sep 8, 2012, 3:51 PM EDT for 5 counties in New Jersey; Orange County, Richmond County, Rockland County, New York. It was in force for 84 min. 5 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
Sep 8, 2012, 3:51 PM EDT (19:51 UTC)
Expired
Sep 8, 2012, 5:15 PM EDT
In force
84 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, Orange County, NY, Richmond County, NY, Rockland County, NY

The radar

The Philadelphia radar (KDIX), 112 km from the middle of the area, began a volume at 19:53 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
Sep 8, 5:00 PM EDTTSTM WND DMGWest Milford, NJTREE DOWN ON UNION VALLEY RD. TIME ESTIMATED BY RADAR.
Sep 8, 5:14 PM EDTTSTM WND DMG1 Wsw Haledon, NJTREE DOWN ACROSS OLDHAM RD
Sep 8, 5:20 PM EDTTSTM WND DMG1 Wnw Wyckoff, NJNUMEROUS TREE BRANCHES DOWN AT WYCKOFF AND RUSSELL AVES
Sep 8, 5:20 PM EDTTSTM WND DMGProspect Park, NJWIRES DOWN ON N 10TH ST BETWEEN BROWN AND PLANTEN AVES
Sep 8, 5:20 PM EDTTSTM WND DMGRiverside, NJTREE DOWN ON MADISON AND 4TH AVES

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
Sep 8, 11:18 AM EDTTornado WatchSPC10 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.9 hours before the alert went out and 116 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 2012-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 173 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 2012-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
173 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
793 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

409 
WUUS51 KOKX 081951
SVROKX
NJC003-013-017-031-039-NYC071-085-087-082115-
/O.NEW.KOKX.SV.W.0080.120908T1951Z-120908T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
351 PM EDT SAT SEP 8 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  UNION COUNTY IN NORTHEAST NEW JERSEY...
  BERGEN COUNTY IN NORTHEAST NEW JERSEY...
  ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  RICHMOND (STATEN ISLAND) COUNTY IN SOUTHEAST NEW YORK...
  HUDSON COUNTY IN NORTHEAST NEW JERSEY...
  ROCKLAND COUNTY IN SOUTHEAST NEW YORK...
  SOUTHEASTERN ORANGE COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 515 PM EDT...

* AT 345 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 46 MILES WEST OF WEST MILFORD TO 53 MILES WEST OF PLAINFIELD
  TO 48 MILES WEST OF PLAINFIELD TO 67 MILES SOUTHWEST OF
  PLAINFIELD...OR ALONG A LINE EXTENDING FROM 33 MILES WEST OF
  HOPATCONG TO 42 MILES WEST OF SUCCASUNNA-KENVIL TO 32 MILES
  NORTHWEST OF EWING TO 39 MILES WEST OF EWING...AND MOVING EAST AT
  45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED ROTATION WITHIN SOME STORMS IN THE LINE. 
WHILE NOT IMMEDIATELY LIKELY...A TORNADO COULD DEVELOP. IF A TORNADO 
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY 
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE ACROSS EASTERN 
PENNSYLVANIA. SEEK SHELTER INSIDE A STURDY STRUCTURE AS THESE STORMS 
APPROACH AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4122 7438 4120 7434 4152 7400 4140 7395
      4125 7397 4114 7389 4092 7391 4068 7406
      4059 7406 4049 7425 4059 7421 4059 7445
      4066 7441 4067 7447 4075 7437 4090 7428
      4097 7429 4105 7445 4104 7449 4109 7450
TIME...MOT...LOC 1949Z 251DEG 41KT 4102 7522 4070 7536
          4053 7527 4014 7546

$$

GOODMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 12:50 PM EDTSpecial Weather StatementOKXBergen55 min
Sep 8, 1:28 PM EDTTornado WarningOKXBergen18 min
Sep 8, 5:04 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union86 min
Sep 8, 5:16 PM EDTTornado WarningOKXBergen29 min
Sep 8, 10:01 AM EDTAreal Flood AdvisoryOKXBronx, Kings, New York, Queens, Westchester119 min
Sep 8, 10:29 AM EDTSpecial Marine WarningOKX16 min
Sep 8, 10:34 AM EDTTornado WarningOKXKings, Queens26 min
Sep 8, 10:47 AM EDTFlash Flood WarningOKXKings, Queens118 min
Sep 8, 10:50 AM EDTSpecial Marine WarningOKX25 min
Sep 8, 10:55 AM EDTTornado WarningOKXKings, Queens35 min
Sep 8, 11:22 AM EDTSpecial Weather StatementOKXRockland53 min
Sep 8, 11:27 AM EDTTornado WarningOKXRockland, Westchester33 min
Sep 8, 11:54 AM EDTTornado WarningOKXWestchester36 min
Sep 8, 1:40 PM EDTSpecial Weather StatementOKXPutnam65 min
Sep 8, 2:24 PM EDTSevere Thunderstorm WarningOKXPutnam, Westchester36 min
Sep 8, 3:39 PM EDTSevere Thunderstorm WarningOKXOrange81 min
Sep 8, 5:13 PM EDTSpecial Marine WarningOKX92 min
Sep 8, 6:30 PM EDTSpecial Weather StatementOKXNassau60 min
Sep 8, 6:35 PM EDTSpecial Weather StatementOKXNassau25 min
Sep 8, 6:44 PM EDTSpecial Marine WarningOKX61 min
Sep 8, 6:47 PM EDTSpecial Marine WarningOKX58 min
Sep 8, 7:36 PM EDTSpecial Weather StatementOKXSuffolk54 min
Sep 8, 7:46 PM EDTSpecial Marine WarningOKX59 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.