Alert archive / New York / Flash Flood Warnings in 1989

Flash Flood Warning 9, NWS Albany, NY

May 17, 1989Orange County, Putnam County, New York

NWS Albany, NY issued this flash flood warning at May 17, 1989, 3:22 AM EDT for Orange County, Putnam County, New York. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 17, 1989, 3:22 AM EDT (07:22 UTC)
Expired
May 17, 1989, 9:30 AM EDT
In force
6 hr
Issued by
NWS Albany, NY
Area
Whole counties

Counties Orange County, NY, Putnam County, NY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Albany, NY (KALB), launched 00:00Z, 7.4 hours before the alert went out and 143 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 1989-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1989-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1261 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 11:50 PM EDTFlash Flood WarningALYGreene, Ulster6 hr
May 16, 11:50 PM EDTFlash Flood WarningALYDutchess, Orange6 hr
May 17, 3:22 AM EDTFlash Flood WarningALYDutchess6 hr
May 17, 3:22 AM EDTFlash Flood WarningALYGreene, Ulster6 hr

Nearby

Flash Flood Warnings in New York, 1989Every flash flood warning in 1989

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.