Alert archive / New York / Flash Flood Warnings in 2000

Flash Flood Warning 45, NWS Albany, NY

December 17, 2000Northwest Hills Planning Region, Connecticut; Columbia County, Dutchess County, New York; Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood warning at Dec 17, 2000, 9:59 AM EST for Northwest Hills Planning Region, Connecticut; Columbia County, Dutchess County, New York; Berkshire County, Massachusetts. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Dec 17, 2000, 9:59 AM EST (14:59 UTC)
Expired
Dec 17, 2000, 4:00 PM EST
In force
6 hr
Issued by
NWS Albany, NY
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Northwest Hills Planning Region, CT, Berkshire County, MA, Columbia County, NY, Dutchess County, NY

The radar

The Albany radar (KENX), 62 km from the middle of the area, began a volume at 14:58 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.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 3.0 hours before the alert went out and 62 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 2000-12-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 141 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 2000-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
141 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
497 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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.

000 
WGUS51 KALY 171501
FFWALY
CTC005-MAC003-NYC021-027-172100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
959 AM EST SUN DEC 17 2000

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COLUMBIA COUNTY IN EAST CENTRAL NEW YORK
  DUTCHESS COUNTY IN EAST CENTRAL NEW YORK
  WESTERN LITCHFIELD COUNTY IN NORTHERN CONNECTICUT
  BERKSHIRE COUNTY IN WESTERN MASSACHUSETTS

* UNTIL 400 PM EST

* AT 952 AM EST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN OVER COPAKE.  THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
  OVER COPAKE AT 1225 PM EST

VERY HEAVY RAIN WITH THUNDERSTORMS HAS BEEN PRODUCING RAINFALL AT
THE RATE OF OVER AN INCH AN HOUR...WITH TWO TO TWO AND A HALF INCHES
OF RAIN ALREADY REPORTED.  THUNDERSTORMS WITH VERY HEAVY RAIN WILL
CONTINUE INTO THE AFTERNOON.

ROAD FLOODING HAS ALREADY BEEN REPORTED IN PITTSFIELD...LENOX...LEE
AND CLAVERACK.  RIVER AND STREAMS LEVELS WILL RISE RAPIDLY WITH
FLOODING LIKELY.  IF YOU LIVE IN AN AREA PRONE TO FLOODING BE READY
TO 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. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

LAT...LON 4244 7376 4211 7385 4195 7391 4154 7389
          4160 7325 4252 7302 4272 7311 4247 73|37

CORRECTED FOR FORMAT

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 9:50 AM ESTFlash Flood WarningALYNorthwest Hills Planning Region6 hr
Dec 17, 10:33 AM ESTFlash Flood WarningALYNorthwest Hills Planning Region6 hr
Dec 17, 3:55 PM ESTFlash Flood WarningALYNorthwest Hills Planning Region3 hr
Dec 17, 11:50 AM ESTFlash Flood WarningALYAlbany, Fulton, Hamilton, Montgomery, Rensselaer, Saratoga and 4 more6 hr
Dec 17, 9:10 AM ESTSevere Thunderstorm WarningALYBerkshire65 min

Nearby

Flash Flood Warnings in New York, 2000Flash Flood Warnings in Connecticut, 2000Flash Flood Warnings in Massachusetts, 2000Every flash flood warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.