Alert archive / New York / Flash Flood Warnings in 2012

Flash Flood Warning 6, NWS New York, NY

July 15, 2012Orange County, New York

NWS New York, NY issued this flash flood warning at Jul 15, 2012, 3:19 PM EDT for Orange County, New York. It was in force for 116 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
Jul 15, 2012, 3:19 PM EDT (19:19 UTC)
Expired
Jul 15, 2012, 5:15 PM EDT
In force
116 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

County Orange County, NY

The radar

The Albany radar (KENX), 116 km from the middle of the area, began a volume at 19:21 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 15, 4:05 PM EDTFLASH FLOOD1 N Bullville, NYCRANSMILL RD CLOSED DUE TO SINKHOLE CAUSED BY FLASH FLOOD

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.3 hours before the alert went out and 132 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, Albany, NY at 12:00Z on 2012-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 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, Albany, NY at 12:00Z on 2012-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
19 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
941 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
82 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.

667 
WGUS51 KOKX 151919
FFWOKX
NYC071-152115-
/O.NEW.KOKX.FF.W.0006.120715T1919Z-120715T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
319 PM EDT SUN JUL 15 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN ORANGE COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 515 PM EDT...

* AT 315 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
FLASH FLOODING FROM A COMPLEX OF THUNDERSTORMS OVER THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4151 7453 4151 7448 4159 7439 4160 7434
      4164 7427 4163 7425 4161 7424 4159 7414
      4162 7414 4161 7409 4143 7407 4142 7454

$$

DSW
2 follow-up statements
161 
WGUS71 KOKX 152049
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
449 PM EDT SUN JUL 15 2012

NYC071-152115-
/O.CON.KOKX.FF.W.0006.000000T0000Z-120715T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE NY-
449 PM EDT SUN JUL 15 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR
NORTHERN ORANGE COUNTY...

AT 440 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE RAINFALL HAS LESSENED ACROSS THE WARNING AREA. HOWEVER... 
RADAR ESTIMATES THAT 2 TO 5 INCHES OF RAINFALL MAY HAVE OCCURRED 
BETWEEN HIGHVIEW AND MONTGOMERY. 

THE COMBINATION OF CONTINUED RUNOFF INTO AREA RIVERS AND STREAMS AND 
THE POTENTIAL FOR REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS ACROSS 
THE WARNING AREA...CONTINUES TO POSE A THREAT OF FLASH FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN UPTON
NY.

&&

LAT...LON 4151 7453 4151 7448 4159 7439 4160 7434
      4164 7427 4163 7425 4161 7424 4159 7414
      4162 7414 4161 7409 4143 7407 4142 7454

$$

DSW
137 
WGUS71 KOKX 152118
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
518 PM EDT SUN JUL 15 2012

NYC071-152125-
/O.EXP.KOKX.FF.W.0006.000000T0000Z-120715T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE NY-
518 PM EDT SUN JUL 15 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR NORTHERN ORANGE COUNTY...

WHILE THE RAINFALL HAS ENDED ACROSS THE AREA...ADDITIONAL SHOWERS 
AND THUNDERSTORMS WITH HEAVY RAINFALL WILL BE POSSIBLE THROUGH 
TONIGHT. THIS MAY EXACERBATE HIGH RIVER AND STREAM LEVELS FROM THE 
HEAVY RAINFALL THIS AFTERNOON. THERE IS THE POTENTIAL FOR ADDITIONAL 
FLOOD WARNINGS OR  ADVISORIES. 

LAT...LON 4151 7453 4151 7448 4159 7439 4160 7434
      4164 7427 4163 7425 4161 7424 4159 7414
      4162 7414 4161 7409 4143 7407 4142 7454

$$

DSW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:30 AM EDTSpecial Weather StatementOKXBronx, Nassau60 min
Jul 15, 2:12 PM EDTSpecial Weather StatementOKXOrange63 min
Jul 15, 2:53 PM EDTAreal Flood AdvisoryOKXOrange82 min
Jul 15, 3:10 PM EDTSpecial Weather StatementOKXPutnam65 min
Jul 15, 3:30 PM EDTSpecial Weather StatementOKXOrange30 min
Jul 15, 3:43 PM EDTSevere Thunderstorm WarningOKXPutnam47 min
Jul 15, 3:50 PM EDTAreal Flood AdvisoryOKXPutnam55 min
Jul 15, 3:50 PM EDTHeat AdvisoryOKXBronx, Kings, Nassau, New York, Orange, Putnam and 5 more3 days
Jul 15, 4:03 PM EDTAreal Flood AdvisoryOKXPutnam, Rockland, Westchester57 min
Jul 15, 4:39 PM EDTSevere Thunderstorm WarningOKXWestchester51 min
Jul 15, 4:51 PM EDTSpecial Marine WarningOKX54 min
Jul 15, 4:57 PM EDTAreal Flood AdvisoryOKXWestchester63 min
Jul 15, 5:36 PM EDTSpecial Weather StatementOKXWestchester24 min
Jul 15, 5:42 PM EDTSpecial Marine WarningOKX48 min
Jul 15, 5:54 PM EDTAreal Flood AdvisoryOKXWestchester51 min
Jul 15, 6:44 PM EDTAreal Flood AdvisoryOKXNassau, Suffolk61 min
Jul 15, 6:44 PM EDTSpecial Weather StatementOKXSuffolk61 min
Jul 15, 6:48 PM EDTSevere Thunderstorm WarningOKXSuffolk42 min
Jul 15, 7:00 PM EDTAreal Flood AdvisoryOKXOrange2 hr
Jul 15, 7:40 PM EDTSpecial Weather StatementOKXPutnam, Rockland65 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.