Alert archive / New York / Flash Flood Warnings in 2012
Flash Flood Warning 19, NWS New York, NY
NWS New York, NY issued this flash flood warning at Aug 10, 2012, 2:47 PM EDT for Suffolk County, New York. It was in force for 88 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
- Aug 10, 2012, 2:47 PM EDT (18:47 UTC)
- Expired
- Aug 10, 2012, 4:15 PM EDT
- In force
- 88 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Flood severity
- None
County Suffolk County, NY
The radar
The Brookhaven radar (KOKX), 58 km from the middle of the area, began a volume at 18:48 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 |
|---|---|---|---|
| Aug 10, 3:00 PM EDT | FLASH FLOOD | Ridge, NY | WARDING RIVER MANOR ROAD AND LONG POND ROAD CLOSED 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, 6.8 hours before the alert went out and 58 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.
- Mixed-layer CAPE
- 1737 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 539 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
887
WGUS51 KOKX 101847
FFWOKX
NYC103-102015-
/O.NEW.KOKX.FF.W.0019.120810T1847Z-120810T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
247 PM EDT FRI AUG 10 2012
THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SUFFOLK COUNTY IN SOUTHEAST NEW YORK...
* UNTIL 415 PM EDT...
* AT 243 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
RAINFALL AMOUNTS BETWEEN 1 AND 2 INCHES PER HOUR...WHICH COULD
RESULT IN FLASH FLOODING ON ROADWAYS.
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.
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.
FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.
&&
LAT...LON 4107 7185 4072 7289 4097 7291 4099 7263
4117 7225 4116 7223 4112 7226 4112 7233
4105 7226 4104 7220 4107 7216 4102 7212
4102 7211 4103 7211 4108 7211 4113 7213
4113 7212 4110 7207 4100 7210 4108 7196
$$
SEARS1 follow-up statement
084
WGUS71 KOKX 102007
FFSOKX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
407 PM EDT FRI AUG 10 2012
NYC103-102016-
/O.EXP.KOKX.FF.W.0019.000000T0000Z-120810T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUFFOLK NY-
407 PM EDT FRI AUG 10 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 415 PM EDT FOR SUFFOLK
COUNTY...
THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE
REGION. WHILE NO NEW FLOODING IS EXPECTED...STREETS ALREADY FLOODED
MAY REMAIN FLOODED WITH WATER LEVELS RESIDING SLOWLY.
LAT...LON 4107 7185 4072 7289 4097 7291 4099 7263
4117 7225 4116 7223 4112 7226 4112 7233
4105 7226 4104 7220 4107 7216 4102 7212
4102 7211 4103 7211 4108 7211 4113 7213
4113 7212 4110 7207 4100 7210 4108 7196
$$
SEARSThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 3:55 AM EDT | Small Craft Advisory | OKX | 30 hr | |
| Aug 10, 9:47 AM EDT | Areal Flood Advisory | OKX | Orange | 58 min |
| Aug 10, 10:24 AM EDT | Areal Flood Advisory | OKX | Putnam, Westchester | 51 min |
| Aug 10, 10:49 AM EDT | Areal Flood Advisory | OKX | Bronx, Kings, Nassau, New York, Orange, Queens and 3 more | 116 min |
| Aug 10, 11:02 AM EDT | Areal Flood Advisory | OKX | Bronx, Kings, Nassau, New York, Orange, Queens and 3 more | 103 min |
| Aug 10, 11:48 AM EDT | Areal Flood Advisory | OKX | Nassau | 87 min |
| Aug 10, 12:09 PM EDT | Areal Flood Advisory | OKX | Putnam, Westchester | 81 min |
| Aug 10, 12:48 PM EDT | Areal Flood Advisory | OKX | Bronx, Kings, Nassau, New York, Queens, Richmond | 57 min |
| Aug 10, 12:53 PM EDT | Areal Flood Advisory | OKX | Orange, Rockland | 52 min |
| Aug 10, 1:03 PM EDT | Special Marine Warning | OKX | 27 min | |
| Aug 10, 1:18 PM EDT | Areal Flood Advisory | OKX | Nassau, Suffolk | 87 min |
| Aug 10, 1:21 PM EDT | Special Weather Statement | OKX | Nassau | 54 min |
| Aug 10, 1:33 PM EDT | Tornado Warning | OKX | Suffolk | 8 min |
| Aug 10, 1:47 PM EDT | Areal Flood Advisory | OKX | Putnam, Westchester | 58 min |
| Aug 10, 1:56 PM EDT | Tornado Warning | OKX | Suffolk | 19 min |
| Aug 10, 2:00 PM EDT | Flash Flood Warning | OKX | Suffolk | 2 hr |
| Aug 10, 2:11 PM EDT | Special Marine Warning | OKX | 64 min | |
| Aug 10, 2:14 PM EDT | Special Marine Warning | OKX | 61 min | |
| Aug 10, 2:23 PM EDT | Special Weather Statement | OKX | Suffolk | 52 min |
| Aug 10, 2:24 PM EDT | Areal Flood Advisory | OKX | Suffolk | 81 min |
| Aug 10, 3:07 PM EDT | Special Marine Warning | OKX | 23 min | |
| Aug 10, 3:10 PM EDT | Special Marine Warning | OKX | 35 min | |
| Aug 10, 3:16 PM EDT | Special Marine Warning | OKX | 59 min | |
| Aug 10, 3:19 PM EDT | Tornado Warning | OKX | Suffolk | 26 min |
| Aug 10, 3:47 PM EDT | Special Marine Warning | OKX | 43 min | |
| Aug 10, 4:18 PM EDT | Special Marine Warning | OKX | 57 min | |
| Aug 10, 5:08 PM EDT | Areal Flood Advisory | OKX | Rockland | 112 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.