Flash Flood Warning 22, NWS New York, NY

Issued

Aug 15, 2012, 12:12 PM EDT (16:12 UTC)

Expired

Aug 15, 2012, 1:30 PM EDT

In force

78 min

Issued by

NWS New York, NY

Area

Storm-based polygon

Flood severity

None

County Suffolk County, NY

The Brookhaven radar (KOKX), 37 km from the middle of the area, began a volume at 16:12 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.

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

375 
WGUS51 KOKX 151612
FFWOKX
NYC103-151815-
/O.NEW.KOKX.FF.W.0022.120815T1612Z-120815T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1212 PM EDT WED AUG 15 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN SUFFOLK COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 215 PM EDT...

* AT 1208 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A THUNDERSTORM MOVING SLOWLY NORTHEAST TOWARDS THE WARNED AREA.  
RAINFALL RATES OF ONE TO TWO INCHES IN ONE HOUR ARE POSSIBLE WITH 
THIS THUNDERSTORM. 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.

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.

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 4084 7345 4094 7350 4094 7344 4091 7341
      4096 7341 4096 7339 4093 7335 4094 7328
      4092 7319 4072 7307 4071 7311 4072 7312
      4070 7314 4069 7318 4070 7324 4068 7328
      4065 7341

$$

619 
WGUS71 KOKX 151649
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1249 PM EDT WED AUG 15 2012

NYC103-151815-
/O.CON.KOKX.FF.W.0022.000000T0000Z-120815T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUFFOLK NY-
1249 PM EDT WED AUG 15 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR
SUFFOLK COUNTY...

AT 1247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED 
AREA. RAINFALL RATES OF UP TO TWO INCHES ARE POSSIBLE. 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4084 7345 4094 7350 4094 7344 4091 7341
      4096 7341 4096 7339 4093 7335 4094 7328
      4092 7319 4072 7307 4071 7311 4072 7312
      4070 7314 4069 7318 4070 7324 4068 7328
      4065 7341

$$

737 
WGUS71 KOKX 151730
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
130 PM EDT WED AUG 15 2012

NYC103-151739-
/O.CAN.KOKX.FF.W.0022.000000T0000Z-120815T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUFFOLK NY-
130 PM EDT WED AUG 15 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SUFFOLK COUNTY...

THE HEAVY THUNDERSTORMS THAT PRODUCE UP TO TWO INCHES OF RAINFALL IN 
ONE HOUR HAVE MOVED OUTSIDE OF THE WARNING AREA...THEREFORE THE 
WARNING HAS BEEN CANCELLED. PLEASE CONTINUE TO EXERCISE 
CAUTION WHEN DRIVING SINCE PONDING ON ROADWAYS MAY STILL EXIST.

LAT...LON 4084 7345 4094 7350 4094 7344 4091 7341
      4096 7341 4096 7339 4093 7335 4094 7328
      4092 7319 4072 7307 4071 7311 4072 7312
      4070 7314 4069 7318 4070 7324 4068 7328
      4065 7341

$$

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

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.