Alert archive / Vermont / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Burlington, VT

July 19, 1989Addison County, Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jul 19, 1989, 4:43 PM EDT for Addison County, Vermont. It was in force for 47 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 19, 1989, 4:43 PM EDT (20:43 UTC)
Expired
Jul 19, 1989, 5:30 PM EDT
In force
47 min
Issued by
NWS Burlington, VT
Area
Whole counties

County Addison County, VT

The radar

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

What was reported inside it

TimeReportWhereRemark
Jul 19, 5:05 PM EDTThunderstorm Wind 0Addison, VT
Jul 19, 5:20 PM EDTThunderstorm Wind 0Addison, VT

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 8.7 hours before the alert went out and 159 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 1989-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 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 1989-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
133 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
844 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
39 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 KBTV 192046 RRA
SVRBTV
VTC001-192130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
443 PM EDT WED JUL 19 1989
 
THE NATIONAL WEATHER SERVICE IN BURLINGTON VT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN WEST CENTRAL VERMONT
          ...NORTHERN ADDISON
 
AT 439 PM A SEVERE THUNDERSTORM WAS SOUTH OF WILLSBORO NEW
YORK...MOVING TO THE SOUTHEAST AT 15 MPH. IT/LL REACH THE
FERRISBURG AND STARKSBORO AREAS BY 510PM. MOTORISTS ON
ROUTE 7 SHOULD BE ON THE LOOKOUT FOR THESE STORMS.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIUND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Jul 19, 2:48 PM EDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BURLINGTON VT
235 PM EDT WED JUL 19 1989

THUNDERSTORMS ARE MOVING THROUGH THE SOUTHERN ADIRONDACKS AND CENTRAL
VERMONT.

AT 233 PM...SCATTERED THUNDERSTORMS WERE BETWEEN OLD FORGE NEW YORK...
FAIRHAVEN VERMONT AND LEBANON NEW HAMPSHIRE. THUNDERSTORMS WITH VERY
HEAVY RAIN...STRONG WINDS AND POSSIBLY SMALL HAIL WERE OVER NORTHERN
WARREN AND NORTHERN WASHINGTON COUNTIES IN NEW YORK. THEY WILL MOVE
INTO SOUTHERN ADDISON AND NORTHERN RUTLAND COUNTIES BY 315 PM.

RESIDENTS OF FAIRHAVEN...CASTLETON AND CHIPMAN'S POINT CAN EXPECT THESE
THUNDERSTORMS TO ARRIVE BY 330 THIS AFTERNOON,

END/RM
Special weather statement, Jul 19, 3:49 PM EDT, 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
345 PM EDT WED JUL 19 1989

THUNDERSTORMS WERE MOVING THROUGH CENTRAL VERMONT.

AT 340 PM A THUNDERESTORM WITH VERY HEAVY RAIN...GUSTY WINDS AND
POSSIBLE SMALL HAIL WAS IN CENTRAL ADDISON COUNTY NEAR MIDDLEBURY.
THIS STORM WAS MOVING TO THE EAST AT 15 MPH. THIS STORM WILL MOVE
JUST NORTH OF GRANVILLE AROUND 400 PM.

ANOTHER THUNDERSTORM WITH HEAVY RAIN WAS IN NORTHERN WARREN COUNTY
IN NEW YORK NEAR CHESTERTOWN. THIS STORM WAS ALSO MOVING TO THE EAST
AT 15 MPH AND WILL MOVE ACROSS NORTHERN WASHINGTON COUNTY BY 400 PM.
CONTINUED MOVEMENT WILL BRING THIS THUNDERSTORM INTO RUTLAND COUNTY
BY 415 PM.

IF THESE STORMS APPROACH YOU2R AREA SEEK SHELTER IMMEDIATELY.

END..RC
Special weather statement, Jul 19, 4:35 PM EDT, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
430 PM EDT WED JUL 19 1989

THUNDERSTORMS CONTINUE IN ADDISON COUNTY.

AT 425 PM A THUNDERSTORM WITH VERY HEAVY RAIN WAS OVER CENTRAL
ADDISON COUNTY TO THE NORTHWEST OF MIDDLEBURY. THIS STORM WAS MOVING
VERY SLOWLY TO THE EAST AND MAY PRODUCE SOME LOCALIZED STREET FLOODING
IN THAT AREA. ANOTHER THUNDERSTORM WAS IN SOUTHERN ADDISON COUNTY
NEAR HANCOCK MOUNTAIN.

A THUNDERSTORM WAS ALSO IN FRANKLIN COUNTY TO THE NORTHEAST OF
ST. ALBANS. THIS STORM WAS MOVING TO THE EAST AT 15 MPH.

IN NEW YORK THUNDERSTORMS CONTINUE TO DEVELOPE IN WARREN COUNTY
TO THE NORTH OF LAKE GEORGE. THESE THUNDERSTORMS WERE MOVING TO THE
EAST AT 5 TO 1I0 MPH.
^
REMEMBER THUNDERSTORMS PRODUCE DANGEROUS LIGHTNING AND GUSTY WINDS.
ALSO DO NOT ATTEMPT TO DRIVE ACROSS A FLOODED ROAD.

END..RC

Nearby

Severe Thunderstorm Warnings in Vermont, 1989Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.