Alert archive / New York / Flash Flood Warnings in 2000

Flash Flood Warning 48, NWS Albany, NY

December 17, 2000Northwest Hills Planning Region, Connecticut; 4 counties in New York; Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood warning at Dec 17, 2000, 3:55 PM EST for Northwest Hills Planning Region, Connecticut; 4 counties in New York; Berkshire County, Massachusetts. It was in force for 3 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, 3:55 PM EST (20:55 UTC)
Expired
Dec 17, 2000, 6:45 PM EST
In force
3 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, Greene County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 61 km from the middle of the area, began a volume at 20:55 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, 8.9 hours before the alert went out and 63 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 172058
FFWALY
CTC005-MAC003-NYC021-027-039-111-172345-

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

THE NATIONAL WEATHER SERVICE IN ALBANY NEW YORK HAS EXTENDED THE

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES IN NEW YORK...
  COLUMBIA
  DUTCHESS
  GREENE
  ULSTER
  AND FOR LITCHFIELD COUNTY CONNECTICUT
  AND FOR BERKSHIRE COUNTY MASSACHUSETTS

* UNTIL 645 PM EST

* AT 350 PM EST...WEATHER SERVICE DOPPLER RADAR INDICATED MODERATE
  TO HEAVY RAIN WILL CONTINUE ACROSS THIS AREA THROUGH 6 PM.  THIS
  ADDITIONAL RAINFALL WILL PROLONG OR CREATE NEW FLOODING
  CONDITIONS IN THESE COUNTIES.

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 4251 7315 4168 7311 4168 7437 4231 7439

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, 9:59 AM ESTFlash Flood WarningALYNorthwest Hills Planning Region6 hr
Dec 17, 10:33 AM ESTFlash Flood WarningALYNorthwest Hills Planning Region6 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.