Alert archive / New York / Flash Flood Warnings in 2016

Flash Flood Warning 5, NWS Albany, NY

August 2, 20165 counties in New York

NWS Albany, NY issued this flash flood warning at Aug 2, 2016, 2:38 AM EDT for 5 counties in New York. It was in force for 6 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
Aug 2, 2016, 2:38 AM EDT (06:38 UTC)
Expired
Aug 2, 2016, 8:30 AM EDT
In force
6 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

Counties Albany County, NY, Montgomery County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY

The radar

The Albany radar (KENX), 24 km from the middle of the area, began a volume at 06:41 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
Aug 2, 4:00 AM EDTFLASH FLOOD1 Wnw Schenectady, NYINTERSECTION OF BROADWAY AND EDISON AVENUE CLOSED DUE TO FLOODING
Aug 2, 4:00 AM EDTFLASH FLOODMckownville, NYUS ROUTE 20 WESTERN AVENUE CLOSED AT FULLER ROAD STUYVESANT PLAZA DUE TO FLOODING
Aug 2, 4:15 AM EDTFLASH FLOOD1 N Niskayuna, NYSEVERAL FEET OF WATER INSIDE GROUND FLOOR OF HILLCREST APARTMENTS. ONGOING FLOODING.
Aug 2, 4:15 AM EDTFLASH FLOOD1 Wnw Albany, NYWESTERN AVENUE AND NORTH PINE AVENUE 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 00:00Z, 6.6 hours before the alert went out and 30 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 00:00Z on 2016-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 150 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 00:00Z on 2016-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
150 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
801 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

171 
WGUS51 KALY 020638
FFWALY
NYC001-057-083-091-093-021230-
/O.NEW.KALY.FF.W.0005.160802T0638Z-160802T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
238 AM EDT TUE AUG 2 2016

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN MONTGOMERY COUNTY IN EASTERN NEW YORK...
  NORTHERN ALBANY COUNTY IN EAST CENTRAL NEW YORK...
  SCHENECTADY COUNTY IN EAST CENTRAL NEW YORK...
  NORTHWESTERN RENSSELAER COUNTY IN EAST CENTRAL NEW YORK...
  SOUTHERN SARATOGA COUNTY IN EAST CENTRAL NEW YORK...

* UNTIL 830 AM EDT

* AT 236 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. ONE TO TWO INCHES OF RAIN HAS ALREADY FALLEN. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALBANY...SCHENECTADY...TROY...CLIFTON PARK...ROTTERDAM...
  AMSTERDAM...COHOES...WATERVLIET...RENSSELAER...COLONIE...SCOTIA...
  MECHANICVILLE...LATHAM...DELMAR...GUILDERLAND...GLENVILLE...
  NISKAYUNA...DUANESBURG...MENANDS AND VOORHEESVILLE.

ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS EXPECTED OVER THE AREA.
RUNOFF FROM THIS RAIN WILL INCREASE THE POTENTIAL FOR FLASH
FLOODING...ESPECIALLY IN URBAN AND POOR DRAINAGE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

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

&&

LAT...LON 4291 7446 4298 7427 4293 7351 4270 7359
      4262 7386 4262 7412 4270 7417 4273 7417
      4272 7419 4274 7420 4275 7430 4276 7426
      4278 7425 4279 7426 4278 7429 4277 7443
      4284 7449

$$

JPV
2 follow-up statements
685 
WGUS71 KALY 020840
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
440 AM EDT TUE AUG 2 2016

NYC001-057-083-091-093-021230-
/O.CON.KALY.FF.W.0005.000000T0000Z-160802T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY NY-ALBANY NY-SCHENECTADY NY-RENSSELAER NY-SARATOGA NY-
440 AM EDT TUE AUG 2 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 AM EDT FOR
SOUTHEASTERN MONTGOMERY...NORTHERN ALBANY...SCHENECTADY...
NORTHWESTERN RENSSELAER AND SOUTHERN SARATOGA COUNTIES...

AT 438 AM EDT...DOPPLER RADAR INDICATED RAIN INTENSITY HAS WEAKENED
ACROSS THE WARNED AREA. HOWEVER, FLASH FLOODING IS LIKELY STILL
OCCURRING DUE TO CLOSED OR IMPASSABLE FLOODED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4291 7446 4298 7427 4293 7351 4270 7359
      4262 7386 4262 7412 4270 7417 4273 7417
      4272 7419 4274 7420 4275 7430 4276 7426
      4278 7425 4279 7426 4278 7429 4277 7443
      4284 7449

$$

JPV
861 
WGUS71 KALY 021122
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
722 AM EDT TUE AUG 2 2016

NYC001-057-083-091-093-021129-
/O.CAN.KALY.FF.W.0005.000000T0000Z-160802T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONTGOMERY NY-ALBANY NY-SCHENECTADY NY-RENSSELAER NY-SARATOGA NY-
722 AM EDT TUE AUG 2 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN MONTGOMERY...NORTHERN
ALBANY...SCHENECTADY...NORTHWESTERN RENSSELAER AND SOUTHERN SARATOGA
COUNTIES IS CANCELLED...

THE FLASH FLOOD WARNING HAS BEEN CANCELED. THE THREAT FOR ADDITIONAL
FLASH FLOODING HAS DIMINISHED. THE HEAVY RAIN HAS ENDED. ADDITIONAL
FLOODING IS NO LONGER EXPECTED. PLEASE CONTINUE TO HEED TO ANY
REMAINING ROAD CLOSURES.

FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4291 7446 4298 7427 4293 7351 4270 7359
      4262 7386 4262 7412 4270 7417 4273 7417
      4272 7419 4274 7420 4275 7430 4276 7426
      4278 7425 4279 7426 4278 7429 4277 7443
      4284 7449

$$

TAW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:27 PM EDTAreal Flood AdvisoryALYHamilton, Warren3 hr
Aug 1, 10:27 PM EDTAreal Flood AdvisoryALYWarren3 hr
Aug 1, 11:26 PM EDTAreal Flood AdvisoryALYSaratoga, Warren2 hr
Aug 2, 1:12 AM EDTAreal Flood AdvisoryALYFulton, Saratoga, Warren, Washington2 hr
Aug 2, 2:04 AM EDTAreal Flood AdvisoryALYFulton, Montgomery, Rensselaer, Saratoga, Schenectady116 min
Aug 2, 3:23 AM EDTSpecial Weather StatementALYDutchess52 min
Aug 2, 3:25 AM EDTAreal Flood AdvisoryALYAlbany, Rensselaer2 hr
Aug 2, 4:25 AM EDTAreal Flood AdvisoryALYColumbia3 hr
Aug 2, 5:34 AM EDTSpecial Weather StatementALYGreene41 min

Nearby

Flash Flood Warnings in New York, 2016Every flash flood warning in 2016

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.