Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 36, NWS New York, NY

June 17, 1998Orange County, Rockland County, New York

NWS New York, NY issued this severe thunderstorm warning at Jun 17, 1998, 5:46 PM EDT for Orange County, Rockland County, New York. It was in force for 44 min. 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 17, 1998, 5:46 PM EDT (21:46 UTC)
Expired
Jun 17, 1998, 6:30 PM EDT
In force
44 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Orange County, NY, Rockland County, NY

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.8 hours before the alert went out and 118 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, Brookhaven, NY at 12:00Z on 1998-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 423 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, Brookhaven, NY at 12:00Z on 1998-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 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
423 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

659 
WUUS1 KNYC 172147 RRA
SVRNYC
NYC071-087-172230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
546 PM EDT WED JUN 17 1998

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ORANGE COUNTY IN SOUTHEASTERN NEW YORK
  ROCKLAND COUNTY IN SOUTHEASTERN NEW YORK

* UNTIL 630 PM EDT

* THE SEVERE THUNDERSTORMS WILL BE NEAR...GREENWOOD LAKE AT
5:50 PM AND THEN MOVE TOWARD RAMAPO AND SPRING VALLEY BY 6:15 PM.

* AT 546 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR IN UPTON
  NY INDICATED A SEVERE THUNDERSTORM IN SOUTHERN ORANGE COUNTY.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

FMN

Nearby

Severe Thunderstorm Warnings in New York, 1998Every severe thunderstorm 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.