Alert archive / New Jersey / Tornado Warnings in 2011

Tornado Warning 1, NWS New York, NY

April 28, 2011Bergen County, Essex County, Passaic County, New Jersey; Orange County, Rockland County, New York

NWS New York, NY issued this tornado warning at Apr 28, 2011, 11:43 AM EDT for Bergen County, Essex County, Passaic County, New Jersey; Orange County, Rockland County, New York. It was in force for 32 min. 1 report 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: Apr 28, 2011, 11:43 AM EDT (15:43 UTC)
Expired: Apr 28, 2011, 12:15 PM EDT
In force: 32 min
Issued by: NWS New York, NY
Area: Storm-based polygon

Counties Bergen County, NJ, Essex County, NJ, Passaic County, NJ, Orange County, NY, Rockland County, NY

The radar

The Brookhaven radar (KOKX), 123 km from the middle of the area, began a volume at 15:43 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

Time	Report	Where	Remark
Apr 28, 12:15 PM EDT	FUNNEL CLOUD	2 N Wayne, NJ	3 FUNNELS SEEN LOOKING NNW.

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.

Issued	Product	Office	Lasted
Apr 28, 9:45 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 3.7 hours before the alert went out and 123 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 211 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 513 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 346 m²/s²
0-3 km storm-relative helicity: 324 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.

335 
WFUS51 KOKX 281543
TOROKX
NJC003-013-031-NYC071-087-281615-
/O.NEW.KOKX.TO.W.0001.110428T1543Z-110428T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1143 AM EDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* TORNADO WARNING FOR...
  PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  ROCKLAND COUNTY IN SOUTHEAST NEW YORK...
  SOUTHEASTERN ORANGE COUNTY IN SOUTHEAST NEW YORK...
  NORTHWESTERN ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  NORTHERN BERGEN COUNTY IN NORTHEAST NEW JERSEY...

* UNTIL 1215 PM EDT...

* AT 1139 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO ALONG A
  LINE EXTENDING FROM WARWICK TO 10 MILES SOUTHWEST OF WEST MILFORD
  TO 10 MILES WEST OF FAIRFIELD TO 18 MILES SOUTHWEST OF FAIRFIELD...
  OR ALONG A LINE EXTENDING FROM WARWICK TO 8 MILES NORTHEAST OF
  HOPATCONG TO DOVER TO 7 MILES SOUTHWEST OF MORRISTOWN...MOVING
  NORTHEAST AT 60 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  FLORIDA...CHESTER...BLOOMINGDALE...POMPTON LAKES...GREENWOOD
  LAKE...RINGWOOD...MONROE...WAYNE...SLOATSBURG...HARRIMAN...
  RAMSEY...SUFFERN...PATERSON...NEW WINDSOR...HAWTHORNE...NEWBURGH...
  MONSEY...POMONA...WEST POINT...RIDGEWOOD...PARAMUS...NEW CITY...
  NANUET...HAVERSTRAW...PEARL RIVER AND TAPPAN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
DESTRUCTIVE STRAIGHT LINE WINDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 PM THURSDAY
AFTERNOON FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

&&

LAT...LON 4119 7438 4124 7448 4131 7444 4154 7400
      4124 7397 4117 7393 4100 7395 4081 7434
      4086 7432 4090 7434 4090 7428 4092 7429
      4097 7428 4099 7432 4101 7443 4104 7444
      4102 7448 4103 7450 4108 7451
TIME...MOT...LOC 1543Z 236DEG 54KT 4128 7436 4107 7449
          4092 7443 4079 7453

$$

MALOIT

1 follow-up statement

494 
WWUS51 KOKX 281612
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1212 PM EDT THU APR 28 2011

NJC003-013-031-NYC071-087-281622-
/O.EXP.KOKX.TO.W.0001.000000T0000Z-110428T1615Z/
BERGEN NJ-ESSEX NJ-ORANGE NY-ROCKLAND NY-PASSAIC NJ-
1212 PM EDT THU APR 28 2011

...THE TORNADO WARNING FOR PASSAIC...ROCKLAND...SOUTHEASTERN
ORANGE...NORTHWESTERN ESSEX AND NORTHERN BERGEN COUNTIES WILL EXPIRE
AT 1215 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 PM THURSDAY
AFTERNOON FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

LAT...LON 4119 7438 4124 7448 4131 7444 4154 7400
      4124 7397 4117 7393 4100 7395 4081 7434
      4086 7432 4090 7434 4090 7428 4092 7429
      4097 7428 4099 7432 4101 7443 4104 7444
      4102 7448 4103 7450 4108 7451
TIME...MOT...LOC 1612Z 236DEG 54KT 4152 7388 4131 7401
          4116 7395 4103 7405

$$

MALOIT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 9:16 AM EDT	Special Weather Statement	OKX	Hudson	44 min
Apr 28, 10:45 AM EDT	Special Weather Statement	OKX	Passaic	60 min
Apr 28, 11:38 AM EDT	Special Weather Statement	OKX	Bergen, Passaic	67 min
Apr 28, 11:42 AM EDT	Flash Flood Warning	OKX	Bergen, Passaic	2 hr
Apr 28, 12:06 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Passaic, Union	24 min
Apr 28, 12:16 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Passaic	29 min
Apr 28, 12:30 PM EDT	Areal Flood Advisory	OKX	Bergen, Essex, Hudson, Passaic, Union	3 hr
Apr 28, 12:45 PM EDT	Special Weather Statement	OKX	Bergen	30 min
Apr 28, 1:12 PM EDT	Special Weather Statement	OKX	Bergen, Essex, Hudson, Passaic, Union	33 min
Apr 27, 9:07 PM EDT	Marine Dense Fog Advisory	OKX		33 hr
Apr 28, 4:35 AM EDT	High Surf Advisory	OKX	Nassau, Suffolk	21 hr
Apr 28, 7:25 AM EDT	Dense Fog Advisory	OKX	Kings, Nassau, Queens, Suffolk	8 hr
Apr 28, 7:51 AM EDT	Special Weather Statement	OKX	Orange	39 min
Apr 28, 11:24 AM EDT	Areal Flood Advisory	OKX	Orange	111 min
Apr 28, 12:13 PM EDT	Areal Flood Advisory	OKX	Orange, Putnam, Westchester	2 hr
Apr 28, 1:18 PM EDT	Special Marine Warning	OKX		27 min
Apr 28, 2:07 PM EDT	Special Marine Warning	OKX		23 min
Apr 28, 3:06 PM EDT	Special Marine Warning	OKX		24 min
Apr 28, 3:25 PM EDT	Special Weather Statement	OKX	Suffolk	35 min

Nearby

Tornado Warnings in New Jersey, 2011 Tornado Warnings in New York, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.