Alert archive / New York / Flash Flood Warnings in 1998

Flash Flood Warning 32, NWS New York, NY

August 17, 1998Hudson County, New Jersey; Bronx County, New York County, New York

NWS New York, NY issued this flash flood warning at Aug 17, 1998, 2:50 PM EDT for Hudson County, New Jersey; Bronx County, New York County, New York. It was in force for 4 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 17, 1998, 2:50 PM EDT (18:50 UTC)
Expired
Aug 17, 1998, 6:50 PM EDT
In force
4 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Hudson County, NJ, Bronx County, NY, New York County, NY

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.8 hours before the alert went out and 213 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 1998-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 184 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 1998-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
184 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
799 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
40 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 
TTAA00 KNYC 171848
FFWNYC
CTC001-NJC013-017-039-NYC005-061-085-119-172250-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
250 PM EDT MON AUG 17 1998

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 650 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHEASTERN NEW YORK

   ...EXTREME SOUTHERN WESTCHESTER COUNTY
   ...NEW YORK COUNTY
   ...BRONX COUNTY
   ...RICHMOND COUNTY

IN NORTHEASTERN NEW JERSEY

   ...EASTERN ESSEX COUNTY
   ...HUDSON COUNTY
   ...EASTERN UNION COUNTY

IN SOUTHWESTERN CONNECTICUT

   ...EXTREME SOUTHWESTERN FAIRFIELD COUNTY

HEAVIER RAIN FALLING AT A RATE OF 1 TO 1 1/2 INCHES PER HOUR
ARE FALLING ACROSS THE METROPOLITAN AREA INTO EXTREME SOUTHWEST
CONNECTICUT. THIS WILL CAUSE WIDESPREAD STREET AND POUR
DRAINAGE FLOODING OVER THE WARNING AREA.

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES AN AREA OF
RAIN IS TRAINING OVER THIS AREA AND WILL CONTINUE FOR SEVERAL
HOURS.

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 2:50 PM EDTFlash Flood WarningOKXEssex, Union4 hr
Aug 17, 2:50 PM EDTFlash Flood WarningOKXWestchester4 hr
Aug 17, 2:50 PM EDTFlash Flood WarningOKXRichmond4 hr

Nearby

Flash Flood Warnings in New York, 1998Flash Flood Warnings in New Jersey, 1998Every flash flood warning in 1998

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.