Alert archive / New York / Flash Flood Warnings in 2017

Flash Flood Warning 7, NWS New York, NY

June 19, 20175 counties in New York

NWS New York, NY issued this flash flood warning at Jun 19, 2017, 5:05 PM EDT for 5 counties in New York. It was in force for 3 hr. 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
Jun 19, 2017, 5:05 PM EDT (21:05 UTC)
Expired
Jun 19, 2017, 8:00 PM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

Counties Bronx County, NY, Kings County, NY, New York County, NY, Queens County, NY, Richmond County, NY

The radar

The Philadelphia radar (KDIX), 88 km from the middle of the area, began a volume at 21:06 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
Jun 19, 5:36 PM EDTFLASH FLOODPark Slope, NYFLASH FLOOD IN GOWANUS SECTION OF BROOKLYN

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, 9.1 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 2017-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1007 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2017-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
1007 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

670 
WGUS51 KOKX 192105
FFWOKX
NYC005-047-061-081-085-200000-
/O.NEW.KOKX.FF.W.0007.170619T2105Z-170620T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New York NY
505 PM EDT MON JUN 19 2017

The National Weather Service in Upton NY has issued a

* Flash Flood Warning for...
  Queens County in southeastern New York...
  Richmond County in southeastern New York...
  Bronx County in southeastern New York...
  New York County in southeastern New York...
  Kings County in southeastern New York...

* Until 800 PM EDT

* At 502 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Additional thunderstorms 
  producing heavy rain will move into the area once the current 
  storms exit. This will produce flash flooding.

* Some locations that will experience flooding include...
  Jamaica, Flatbush, Flushing, Mott Haven, East Tremont, Coney 
  Island, Rockaway Beach, Todt Hill, Crown Heights, Throgs Neck 
  Bridge, Midtown Manhattan, Kennedy Airport, RFK Bridge and 
  Huguenot.

Additional rainfall amounts of up to two inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 4050 7427 4065 7419 4065 7406 4062 7405
      4070 7403 4069 7405 4069 7406 4092 7392
      4088 7376 4084 7376 4083 7380 4075 7370
      4065 7372 4062 7377 4059 7373 4054 7394
      4057 7394 4056 7401 4060 7404 4052 7413

$$

JMC
2 follow-up statements
043 
WGUS71 KOKX 192250
FFSOKX

Flash Flood Statement
National Weather Service New York NY
650 PM EDT MON JUN 19 2017

NYC005-047-061-081-085-200000-
/O.CON.KOKX.FF.W.0007.000000T0000Z-170620T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Queens NY-Richmond NY-Bronx NY-New York NY-Kings NY-
650 PM EDT MON JUN 19 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR
QUEENS...RICHMOND...BRONX...NEW YORK AND KINGS COUNTIES...

At 648 PM EDT, Doppler radar indicated showers and thunderstorms 
producing locally heavy rain across the warned area. Up to two 
inches of rain have already fallen across portions of the city. The 
additional rainfall may produce some areas of new flooding, and 
allow any existing flooding to continue.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of urban 
areas, highways, streets and underpasses as well as other drainage 
areas and low lying spots.

&&

LAT...LON 4050 7427 4065 7419 4065 7406 4062 7405
      4070 7403 4069 7405 4069 7406 4092 7392
      4088 7376 4084 7376 4083 7380 4075 7370
      4065 7372 4062 7377 4059 7373 4054 7394
      4057 7394 4056 7401 4060 7404 4052 7413

$$

JMC
464 
WGUS71 KOKX 192337
FFSOKX

Flash Flood Statement
National Weather Service New York NY
737 PM EDT MON JUN 19 2017

NYC005-047-061-081-085-192346-
/O.CAN.KOKX.FF.W.0007.000000T0000Z-170620T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Queens NY-Richmond NY-Bronx NY-New York NY-Kings NY-
737 PM EDT MON JUN 19 2017

...THE FLASH FLOOD WARNING FOR QUEENS...RICHMOND...BRONX...NEW YORK
AND KINGS COUNTIES IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed any remaining road closures.

LAT...LON 4050 7427 4065 7419 4065 7406 4062 7405
      4070 7403 4069 7405 4069 7406 4092 7392
      4088 7376 4084 7376 4083 7380 4075 7370
      4065 7372 4062 7377 4059 7373 4054 7394
      4057 7394 4056 7401 4060 7404 4052 7413

$$

DW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 11:45 AM EDTSpecial Weather StatementOKXOrange, Rockland45 min
Jun 19, 11:50 AM EDTSpecial Weather StatementOKXRockland55 min
Jun 19, 12:13 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam, Rockland, Westchester62 min
Jun 19, 12:24 PM EDTSpecial Weather StatementOKXOrange66 min
Jun 19, 12:49 PM EDTSpecial Weather StatementOKXPutnam56 min
Jun 19, 2:10 PM EDTSpecial Weather StatementOKXOrange65 min
Jun 19, 2:19 PM EDTSpecial Weather StatementOKXOrange56 min
Jun 19, 2:23 PM EDTAreal Flood AdvisoryOKXOrange112 min
Jun 19, 2:35 PM EDTSevere Thunderstorm WarningOKXOrange55 min
Jun 19, 2:58 PM EDTSpecial Weather StatementOKXPutnam47 min
Jun 19, 3:01 PM EDTSpecial Weather StatementOKXOrange44 min
Jun 19, 3:03 PM EDTFlash Flood WarningOKXOrange3 hr
Jun 19, 3:23 PM EDTSevere Thunderstorm WarningOKXPutnam19 min
Jun 19, 4:02 PM EDTSpecial Weather StatementOKXOrange43 min
Jun 19, 4:10 PM EDTSpecial Weather StatementOKXPutnam50 min
Jun 19, 4:22 PM EDTSevere Thunderstorm WarningOKXPutnam38 min
Jun 19, 4:31 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam33 min
Jun 19, 4:35 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond and 2 more55 min
Jun 19, 4:38 PM EDTSpecial Marine WarningOKX67 min
Jun 19, 4:50 PM EDTSpecial Marine WarningOKX55 min
Jun 19, 5:01 PM EDTSevere Thunderstorm WarningOKXBronx, New York, Richmond, Rockland, Westchester44 min
Jun 19, 5:06 PM EDTSpecial Weather StatementOKXOrange39 min
Jun 19, 5:18 PM EDTSpecial Weather StatementOKXRockland, Westchester57 min
Jun 19, 5:25 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond50 min
Jun 19, 5:29 PM EDTSpecial Marine WarningOKX31 min
Jun 19, 5:34 PM EDTSevere Thunderstorm WarningOKXWestchester56 min
Jun 19, 5:35 PM EDTSpecial Marine WarningOKX55 min
Jun 19, 6:03 PM EDTSpecial Weather StatementOKXNassau42 min
Jun 19, 6:07 PM EDTSpecial Marine WarningOKX53 min
Jun 19, 6:18 PM EDTSpecial Weather StatementOKXKings, Nassau, Queens57 min
Jun 19, 6:46 PM EDTAreal Flood AdvisoryOKXNassau3 hr

Nearby

Flash Flood Warnings in New York, 2017Every flash flood warning in 2017

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.