Alert archive / New York / Flash Flood Warnings in 2011

Flash Flood Warning 3, NWS Albany, NY

May 19, 2011Dutchess County, Ulster County, New York

NWS Albany, NY issued this flash flood warning at May 19, 2011, 7:33 PM EDT for Dutchess County, Ulster County, New York. It was in force for 5 hr. 4 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
May 19, 2011, 7:33 PM EDT (23:33 UTC)
Expired
May 20, 2011, 12:32 AM EDT
In force
5 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

Counties Dutchess County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 91 km from the middle of the area, began a volume at 23:35 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
May 19, 7:55 PM EDTFLASH FLOODLagrangeville, NYFLASH FLOODING REPORTED AT INTERSECTION OF FIREMENS WAY AND NOXON RD.
May 19, 7:55 PM EDTFLASH FLOODWappingers Falls, NYFLASH FLOODING REPORTED AT INTERSECTION OF DEGARMO HILLS RD AND MYERS CORNERS RD.
May 19, 9:20 PM EDTFLASH FLOODPleasant Valley, NYFLASH FLOODING REPORTED AT THE INTERSECTION OF SALT POINT TURNPIKE AND NORTH AVE.
May 19, 10:30 PM EDTFLASH FLOODWashington Hollow, NYFLASH FLOODING ON ROUTE 44.

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, 11.6 hours before the alert went out and 105 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 2011-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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 2011-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.19395878Sfc1 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
11 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
103 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.

687 
WGUS51 KALY 192333
FFWALY
NYC027-111-200530-
/O.NEW.KALY.FF.W.0003.110519T2333Z-110520T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
733 PM EDT THU MAY 19 2011

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DUTCHESS COUNTY IN EAST CENTRAL NEW YORK...
  THIS INCLUDES THE CITIES OF...RHINEBECK...POUGHKEEPSIE...PAWLING...
  BEACON...
  ULSTER COUNTY IN EAST CENTRAL NEW YORK...
  THIS INCLUDES THE CITIES OF...SAUGERTIES...NEW PALTZ...KINGSTON...
  ELLENVILLE...

* UNTIL 130 AM EDT

* AT 730 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM THUNDERSTORMS EXPECTED TO PRODUCE FLASH       
  FLOODING OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOODLAND
  VALLEY CAMPGROUND...OLIVEBRIDGE...MOUNT TREMPER...MODENA...KENNETH
  L WILSON CAMPGROUND...WOODSTOCK...WEST SHOKAN...WEST HURLEY...
  TILLSON...STANFORDVILLE...STAATSBURG...RED HOOK...PORT EWEN...
  PLEASANT VALLEY...PINE PLAINS...PHOENICIA...NAPANOCH...MILLBROOK...
  LAKE KATRINE...KERHONKSON...HYDE PARK...HURLEY...HIGHLAND...
  FAIRVIEW...DOVER PLAINS AND AMENIA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV.

&&

LAT...LON 4144 7399 4152 7401 4158 7396 4161 7412
      4158 7412 4159 7419 4162 7426 4163 7440
      4174 7457 4187 7445 4202 7475 4216 7446
      4212 7436 4209 7407 4215 7399 4207 7392
      4200 7372 4197 7351 4153 7353 4149 7392

$$
2 follow-up statements
417 
WGUS71 KALY 200136
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
936 PM EDT THU MAY 19 2011

NYC111-200145-
/O.CAN.KALY.FF.W.0003.000000T0000Z-110520T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ULSTER NY-
936 PM EDT THU MAY 19 2011

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

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV.

LAT...LON 4144 7399 4152 7401 4159 7395 4207 7392
      4200 7372 4197 7351 4153 7353 4149 7392

$$

NYC027-200530-
/O.CON.KALY.FF.W.0003.000000T0000Z-110520T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DUTCHESS NY-
936 PM EDT THU MAY 19 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR
DUTCHESS COUNTY...

AT 933 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER NORTHERN 
DUTCHESS COUNTY. IN ADDITION...FLASH FLOODING HAS BEEN REPORTED THIS 
EVENING IN THE TOWNS OF WAPPINGERS...LAGRANGE AND PLEASANT VALLEY. 
RUNOFF FROM VERY HEAVY RAIN THIS EVENING ACROSS MUCH OF THE COUNTY 
MAY RESULT IN ADDITIONAL FLASH FLOODING FOR SEVERAL MORE HOURS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
STANFORDVILLE...STAATSBURG...RHINEBECK...RED HOOK...PINE PLAINS AND
AMENIA

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV.

LAT...LON 4144 7399 4152 7401 4159 7395 4207 7392
      4200 7372 4197 7351 4153 7353 4149 7392

$$
318 
WGUS71 KALY 200432
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
1232 AM EDT FRI MAY 20 2011

NYC027-200441-
/O.CAN.KALY.FF.W.0003.000000T0000Z-110520T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DUTCHESS NY-
1232 AM EDT FRI MAY 20 2011

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

THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED OUT OF DUTCHESS COUNTY... 
AND LITTLE IF ANY ADDITIONAL RAINFALL IS EXPECTED FOR THE REST OF 
TONIGHT. 

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV.

LAT...LON 4144 7399 4152 7401 4159 7395 4207 7392
      4200 7372 4197 7351 4153 7353 4149 7392

$$

GJM

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 1:55 AM EDTAreal Flood AdvisoryALYUlster4 hr
May 19, 5:48 AM EDTAreal Flood AdvisoryALYUlster3 hr
May 19, 10:56 AM EDTRiver Flood WarningALYUlster41 hr
May 19, 4:32 PM EDTRiver Flood WarningALYHerkimer, Oneida20 hr

Nearby

Flash Flood Warnings in New York, 2011Every flash flood warning in 2011

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.