Alert archive / New York / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 9, NWS Burlington, VT

June 18, 1990Onondaga County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Jun 18, 1990, 9:50 AM EDT for Onondaga County, New York. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jun 18, 1990, 9:50 AM EDT (13:50 UTC)
Expired
Jun 18, 1990, 10:45 AM EDT
In force
55 min
Issued by
NWS Burlington, VT
Area
Whole counties

County Onondaga 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 12:00Z, 1.8 hours before the alert went out and 196 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 1990-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 1990-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 173 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
18 J/kg
Mixed-layer CIN
-301 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
173 m²/s²
0-3 km storm-relative helicity
202 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 KSYR 181350
SVRSYR
NYC049-053-065-067-181445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SYRACUSE NY
950 AM EDT MON JUN 18 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1045 AM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE STATE OF NEW YORK
      LEWIS...MADISON...ONEIDA...ONONDAGA

AT 9 45 AM EDT RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS FROM
EASTERN JEFFERSON COUNTY SOUTH TO SYRACUSE MOVING EAST AT 40 MPH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

BARTHOLF

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 18, 8:01 AM EDT, 1 hour 49 minutes before
VTZ001-NYZ011-181500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
759 AM EDT MON JUN 18 1990

...BOATERS ON LAKE CHAMPLAIN SHOULD KEEP A CLOSE EYE ON THE WEATHER
TODAY...

A LAKE WIND ADVISORY IS IN EFFECT FOR SOUTH WINDS OF 15 TO 30 KNOTS.
IN ADDITION...THUNDERSTORMS WILL BE DEVELOPING TODAY...ESPECIALLY
DURING THE AFTERNOON AND EVENING HOURS.  THESE THUNDERSTORMS COULD
CONTAIN HEAVY RAIN...GUSTY AND SHIFTING WINDS...FREQUENT LIGHTNING
...AND POSSIBLY SOME HAIL.

THE THUNDERSTORMS WILL BE DEVELOPING IN WESTERN NEW YORK AND IN THE
ADIRONDACKS...AND WILL BE MOVING INTO THE CHAMPLAIN VALLEY...AND ONTO
THE LAKE.

IF YOU ARE BOATING ON THE LAKE TODAY...KEEP A VERY CLOSE WATCH ON THE
WEATHER TODAY...AND BE PREPARED TO HEAD TO SHORE IF THREATENING
WEATHER APPROACHES.  IF YOU HAVE ACTIVITIES PLANNED ON THE LAKE
SHORE...YOU SHOULD BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER
APPROACHES.

REYNOLDS

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 8:50 AM EDTSevere Thunderstorm WarningBTVCayuga, Oswego55 min
Jun 18, 8:50 AM EDTSevere Thunderstorm WarningBTVJefferson55 min
Jun 18, 9:50 AM EDTSevere Thunderstorm WarningBTVLewis, Madison, Oneida55 min
Jun 18, 11:37 AM EDTSevere Thunderstorm WarningBTVClinton68 min

Nearby

Severe Thunderstorm Warnings in New York, 1990Every severe thunderstorm warning in 1990

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.