Alert archive / New York / Flash Flood Warnings in 1998

Flash Flood Warning 34, NWS Albany, NY

June 18, 1998Hamilton County, New York

NWS Albany, NY issued this flash flood warning at Jun 18, 1998, 6:29 AM EDT for Hamilton County, New York. 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 counties it named.

The facts

Issued
Jun 18, 1998, 6:29 AM EDT (10:29 UTC)
Expired
Jun 18, 1998, 12:30 PM EDT
In force
6 hr
Issued by
NWS Albany, NY
Area
Whole counties

County Hamilton County, NY

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 10.5 hours before the alert went out and 121 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 1998-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 540 joules per kilogram.LCLEL10008507005003002001001 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 1998-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
540 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
769 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KALB 181028
FFWALB
NYC041-181630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
629 AM EDT THU JUN 18 1998

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HAMILTON COUNTY IN NORTHERN NEW YORK

* UNTIL 1230 PM EDT

* AT 630 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED AN AREA OF HEAVY RAIN ACROSS CENTRAL AND
  NORTHEASTERN HAMILTON COUNTY...DRIFTING VERY SLOWLY
  SOUTHEAST.

  RAINFALL RATES IN EXCESS OF 0.75 INCHES PER HOUR WILL
  RESULT IN SIGNIFICANT RUNOFF THAT WILL PRODUCE RAPID RISES
  ON STREAMS AND CREEKS. RIVERS AND STREAMS ESPECIALLY
  THREATENED TO FLOODING INCLUDE THE CEDAR RIVER...THE
  KUNJAMUK RIVER AND THE JESSUP RIVER.

  AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS... AND BE PREPARED
  TO MOVE TO HIGHER GROUND... SHOULD FLOOD WATERS THREATEN. IF FLASH
  FLOODING IS OBSERVED... ACT QUICKLY. MOVE TO HIGHER GROUND TO
  ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
  WATER BEGINS RISING.

Nearby

Flash Flood Warnings in New York, 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.