Alert archive / Vermont / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 14, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Jun 21, 1990, 7:01 PM EDT for Caledonia County, Essex County, Vermont. It was in force for 59 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
- Jun 21, 1990, 7:01 PM EDT (23:01 UTC)
- Expired
- Jun 21, 1990, 8:00 PM EDT
- In force
- 59 min
- Issued by
- NWS Burlington, VT
- Area
- Whole counties
Counties Caledonia County, VT, Essex 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 |
|---|---|---|---|
| Jun 21, 7:32 PM EDT | Hail 0.75 | Caledonia, VT | |
| Jun 21, 7:45 PM EDT | Hail 0.75 | Essex, 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
Gray, ME (KGYX), launched 12:00Z, 11.0 hours before the alert went out and 154 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3603 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 21, 5:47 PM EDT, 1 hour 14 minutes before
VTZALL-NYZ11-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 640 PM EDT THU JUN 21 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN NEW YORK AND VERMONT...FROM CHITTENDEN...WASHINGTON AND CALEDONIA COUNTIES SOUTH. THE WATCH IS IN EFFECT UNTIL 1100 PM TONIGHT. A 530 PM A LINE OF THUNDERSTORMS WERE MOVING INTO WESTERN VERMONT AT 45 MILES PER HOUR. ANOTHER GROUP OF THUNDERSTORMS WERE OVER CENTRAL ORANGE COUNTY NEAR CORINTH. NO SEVERE WEATHER HAD BEEN REPORTED FROM ANY OF THE STORMS IN NORTHERN NEW YORK OR VERMONT...BUT...THEY DO CONTAIN VERY HEAVY RAIN... STRON GUSTY WINDS AND POSSIBLE HAIL. YOU SHOULD SEEK SHELTER WHEN THE THUNDERSTORMS ARRIVE IN YO<UR AREA. < END...WSG
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:56 PM EDT | Severe Thunderstorm Warning | BTV | Caledonia, Orange | 64 min |
Nearby
Severe Thunderstorm Warnings in Vermont, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.