Alert archive / New York / Flash Flood Warnings in 2012

Flash Flood Warning 27, NWS New York, NY

September 8, 2012Kings County, Queens County, New York

NWS New York, NY issued this flash flood warning at Sep 8, 2012, 10:47 AM EDT for Kings County, Queens County, New York. It was in force for 118 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
Sep 8, 2012, 10:47 AM EDT (14:47 UTC)
Expired
Sep 8, 2012, 12:45 PM EDT
In force
118 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

Counties Kings County, NY, Queens County, NY

The radar

The Brookhaven radar (KOKX), 89 km from the middle of the area, began a volume at 14:47 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, 11:05 AM EDTFLASH FLOOD1 S Flushing, NYFLOODING REPORTED BY SKYWARN SPOTTER AT NORTHERN BOULEVARD AND VAN WYCK EXPRESSWAY.
Sep 8, 11:30 AM EDTFLASH FLOODKew Gardens, NYTHREE LANES OF THE GRAND CENTRAL PARKWAY CLOSED AT THE VAN WYCK EXPRESSWAY DUE TO FLOODING

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 2.8 hours before the alert went out and 89 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.

817 
WGUS51 KOKX 081447
FFWOKX
NYC047-081-081645-
/O.NEW.KOKX.FF.W.0027.120908T1447Z-120908T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1047 AM EDT SAT SEP 8 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  QUEENS COUNTY IN SOUTHEAST NEW YORK...
  KINGS (BROOKLYN) COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 1245 PM EDT...

* AT 1043 AM EDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING
  FROM A THUNDERSTORM OVER THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SPOTTER IN BROOKLYN HAS REPORTED 1.4 INCHES OF RAIN IN 45 MINUTES. 
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN PARTS 
OF THE WARNED AREA. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 4057 7393 4057 7402 4059 7400 4061 7404
      4064 7404 4070 7401 4071 7397 4075 7396
      4080 7391 4079 7387 4080 7385 4080 7379
      4075 7370 4072 7373 4065 7373 4062 7377
      4059 7374 4054 7394

$$

GOODMAN

The office that day

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

IssuedProductOfficeCountiesLasted
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, 10:50 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, 12:50 PM EDTSpecial Weather StatementOKXRockland, Westchester55 min
Sep 8, 1:28 PM EDTTornado WarningOKXRockland, Westchester18 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, 3:51 PM EDTSevere Thunderstorm WarningOKXOrange, Richmond, Rockland84 min
Sep 8, 5:04 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Orange, Putnam and 4 more86 min
Sep 8, 5:13 PM EDTSpecial Marine WarningOKX92 min
Sep 8, 5:16 PM EDTTornado WarningOKXRockland29 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

Flash Flood Warnings in New York, 2012Every flash flood 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.