Alert archive / Vermont / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 21, NWS Burlington, VT
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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 19, 5:05 PM EDT | Thunderstorm Wind 0 | Addison, VT | |
| Jul 19, 5:20 PM EDT | Thunderstorm Wind 0 | Addison, 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.
- 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
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.