Alert archive / New York / Flash Flood Warnings in 2003

Flash Flood Warning 20, NWS Albany, NY

August 11, 2003Albany County, Greene County, New York

NWS Albany, NY issued this flash flood warning at Aug 11, 2003, 1:09 PM EDT for Albany County, Greene County, New York. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 11, 2003, 1:09 PM EDT (17:09 UTC)
Expired
Aug 11, 2003, 6:00 PM EDT
In force
5 hr
Issued by
NWS Albany, NY
Area
Whole counties

Counties Albany County, NY, Greene County, NY

The radar

The Albany radar (KENX), 17 km from the middle of the area, began a volume at 17:12 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, 5.2 hours before the alert went out and 33 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 2003-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 544 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2003-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.193958Sfc1 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
544 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KALY 111710
FFWALY
NYC001-039-112200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
109 PM EDT MON AUG 11 2003

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN ALBANY COUNTY IN EASTERN NEW YORK
  WESTERN GREENE COUNTY IN EASTERN NEW YORK

* UNTIL 600 PM EDT

* AT 106 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED TORRENTIAL
  RAIN IN SOUTHWESTERN ALBANY AND WESTERN GREENE COUNTIES.

* LOCATIONS IN THE WARNING INCLUDE...DURHAM...HUNTER...LEXINGTON...
  OAK HILL...PRESTON HOLLOW...RENSSELAERVILLE...WESTERLO AND WINDHAM

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

$$

LAT...LON 4257 7398 4218 7420 4221 7443 4234 7434
          4237 7424 4257 7421

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 9:10 PM EDTFlash Flood WarningALYDutchess4 hr
Aug 10, 9:15 PM EDTFlash Flood WarningALYDutchess2 hr
Aug 11, 1:54 PM EDTFlash Flood WarningALYUlster5 hr
Aug 11, 3:25 PM EDTFlash Flood WarningALYColumbia4 hr

Nearby

Flash Flood Warnings in New York, 2003Every flash flood warning in 2003

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.