Alert archive / New York / Flash Flood Warnings in 2012

Flash Flood Warning 7, NWS Albany, NY

September 18, 2012Greene County, Ulster County, New York

NWS Albany, NY issued this flash flood warning at Sep 18, 2012, 4:28 PM EDT for Greene County, Ulster County, New York. It was in force for 5 hr. 3 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 18, 2012, 4:28 PM EDT (20:28 UTC)
Expired
Sep 18, 2012, 9:06 PM EDT
In force
5 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

Counties Greene County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 63 km from the middle of the area, began a volume at 20:27 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 18, 6:15 PM EDTFLASH FLOODShandaken, NYOLIVEREA ROAD IS CLOSED DUE TO FLASH FLOODING
Sep 18, 7:10 PM EDTFLASH FLOODJewett, NYROADS CLOSED DUE TO FLOODING
Sep 18, 7:10 PM EDTFLASH FLOODWindham, NYROADS 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

Albany, NY (KALY), launched 12:00Z, 8.5 hours before the alert went out and 83 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 2012-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Albany, NY at 12:00Z on 2012-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 251 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
251 m²/s²
0-3 km storm-relative helicity
226 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.

699 
WGUS51 KALY 182028
FFWALY
NYC039-111-190230-
/O.NEW.KALY.FF.W.0007.120918T2028Z-120919T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
428 PM EDT TUE SEP 18 2012

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENE COUNTY IN EAST CENTRAL NEW YORK...
  THIS INCLUDES THE CITY OF HUNTER...
  ULSTER COUNTY IN EAST CENTRAL NEW YORK...

* UNTIL 1030 PM EDT

* AT 423 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING DEVELOPING FROM REPEATED HEAVY RAINFALL OVER THE    
  WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINDHAM AND
  PRATTSVILLE

RADAR ESTIMATES AND ACTUAL GAGE READINGS INDICATING 2 TO 4 INCHES 
OF RAIN HAS FALLEN ACROSS PORTIONS OF GREENE AND MAINLY WESTERN 
ULSTER COUNTY. ADDITIONAL RAINFALL OF 1 TO 3 INCHES IS POSSIBLE.

RAPID RUNOFF FROM HEAVY RAINFALL WILL LEAD TO 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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

&&

LAT...LON 4174 7458 4187 7447 4200 7475 4202 7478
      4212 7456 4215 7453 4215 7451 4217 7446
      4221 7454 4233 7445 4235 7429 4240 7420
      4246 7382 4207 7396 4166 7444

$$

JPV
2 follow-up statements
660 
WGUS71 KALY 182243
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
643 PM EDT TUE SEP 18 2012

NYC039-111-190230-
/O.CON.KALY.FF.W.0007.000000T0000Z-120919T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE NY-ULSTER NY-
643 PM EDT TUE SEP 18 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
ULSTER AND GREENE COUNTIES...

AT 638 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NORTH-SOUTH
LAKE CAMPGROUND...LANESVILLE...HIGH FALLS...WINDHAM...PRATTSVILLE AND
HUNTER.

HEAVY RAINFALL WILL CONTINUE TO RESULT IN RAPID RUNOFF AND FLASH 
FLOODING OVER PORTIONS OF GREENE AND ULSTER COUNTIES. FLASH FLOODING 
HAS BEEN REPORTED IN SHANDAKEN...WITH OLIVEREA ROAD /COUNTY ROUTE 
47/ FLOODED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

&&

LAT...LON 4174 7458 4187 7447 4200 7475 4202 7478
      4212 7456 4215 7453 4215 7451 4217 7446
      4221 7454 4233 7445 4235 7429 4240 7420
      4246 7382 4207 7396 4166 7444

$$

JPV
451 
WGUS71 KALY 190106
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
906 PM EDT TUE SEP 18 2012

NYC039-111-190110-
/O.CAN.KALY.FF.W.0007.000000T0000Z-120919T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE NY-ULSTER NY-
906 PM EDT TUE SEP 18 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR ULSTER AND GREENE
COUNTIES...

HEAVY RAIN HAS MOVED OUT OF THE AREA...THEREFORE THE THREAT FOR 
FLASH FLOODING HAS ENDED.

HOWEVER...SOME LOCATIONS ACROSS WESTERN ULSTER COUNTY STILL HAVE 
SOME ROADS CLOSED DUE TO FLOODING. WATER LEVELS WILL SLOWLY RECEDE 
THOUGH. USE CAUTION IF DRIVING THIS EVENING AND BE ON THE LOOKOUT 
FOR ANY CLOSED ROADS.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV...ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV OR TWITTER
@NWSALBANY.

LAT...LON 4174 7458 4187 7447 4200 7475 4202 7478
      4212 7456 4215 7453 4215 7451 4217 7446
      4221 7454 4233 7445 4235 7429 4240 7420
      4246 7382 4207 7396 4166 7444

$$

JPV

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 18, 5:08 AM EDTHigh Wind WarningALYColumbia, Dutchess, Rensselaer, Washington17 hr
Sep 18, 5:08 AM EDTWind AdvisoryALYAlbany, Columbia, Dutchess, Fulton, Greene, Hamilton and 9 more17 hr
Sep 18, 3:21 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer69 min
Sep 18, 3:54 PM EDTAreal Flood AdvisoryALYGreene, Ulster4 hr
Sep 18, 4:33 PM EDTSpecial Weather StatementALYHamilton, Herkimer57 min
Sep 18, 4:53 PM EDTAreal Flood AdvisoryALYAlbany3 hr
Sep 18, 5:04 PM EDTSpecial Weather StatementALYHamilton56 min
Sep 18, 5:25 PM EDTSpecial Weather StatementALYFulton, Hamilton, Montgomery, Warren65 min
Sep 18, 5:28 PM EDTRiver Flood WarningALYUlster8 hr
Sep 18, 5:41 PM EDTSpecial Weather StatementALYRensselaer79 min
Sep 18, 5:42 PM EDTAreal Flood AdvisoryALYAlbany, Rensselaer, Saratoga, Schenectady, Washington3 hr
Sep 18, 6:05 PM EDTSpecial Weather StatementALYGreene40 min
Sep 18, 6:15 PM EDTSevere Thunderstorm WarningALYGreene, Ulster60 min
Sep 18, 6:24 PM EDTAreal Flood AdvisoryALYFulton, Montgomery, Saratoga, Schenectady, Schoharie100 min
Sep 18, 6:28 PM EDTFlash Flood WarningALYAlbany, Columbia3 hr
Sep 18, 6:34 PM EDTSevere Thunderstorm WarningALYAlbany, Greene, Rensselaer, Saratoga, Schenectady, Washington56 min
Sep 18, 7:04 PM EDTSevere Thunderstorm WarningALYAlbany, Columbia, Greene, Rensselaer56 min
Sep 18, 7:08 PM EDTAreal Flood AdvisoryALYColumbia, Dutchess, Rensselaer, Schenectady, Washington3 hr
Sep 18, 7:32 PM EDTSevere Thunderstorm WarningALYColumbia, Rensselaer, Saratoga, Washington73 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.