Alert archive / Vermont / Flash Flood Warnings in 1990
Flash Flood Warning 35, NWS Burlington, VT
NWS Burlington, VT issued this flash flood warning at Jul 23, 1990, 2:29 PM EDT for Chittenden County, Lamoille County, Washington County, Vermont. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1990, 2:29 PM EDT (18:29 UTC)
- Expired
- Jul 23, 1990, 5:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Burlington, VT
- Area
- Whole counties
Counties Chittenden County, VT, Lamoille County, VT, Washington County, VT
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
Gray, ME (KGYX), launched 12:00Z, 6.5 hours before the alert went out and 210 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
- 3609 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 114 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 231833 RRA FFWBTV VTC015-023-007-232130- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE BURLINGTON VT 229 PM EDT MON JUL 23 1990 THE NATIONAL WEATHER SERVICE IN BURLINGTON VT HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...S... IN NORTH CENTRAL VERMONT ...LAMOILLE COUNTY...WASHINGTON COUNTY IN NORTHWEST VERMONT ...CHITTENDEN COUNTY THUNDERSTORMS ACROSS NORTHERN VERMONT HAVE RESULTED IN VERY HEAVY RAINREPORTS OF WATER OVER SOME ROADS...INCLUDING RTES 2...116 AND 108. CAUTION IS ADVISED IN THESE AREAS. HEAVY RAIN WILL CONTINUE ACROSS THESE COUNTIES FOR THE NEXT 3 HOURS. WASHOUTS WILL OCCUR SO IF YOU ARE ON THE ROADS BE ALERT. IF YOU LIVE NEAR A STREAM BE PREPARED TO ACT FOR RAPIDLY RISING WATER. SOME OF THE MORE SUSCEPTIBLE AREAS LIE IN A LINE FROM HINESBURG TO BOLTON TO STOWE. RESIDENTS IN THESE AREAS SHOULD BE ALERT FOR RAPID FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. YOU SHOULD MOVE TO HIGHER GROUND.
What forecasters said that day
The local office's own words before this flash flood 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 23, 1:32 PM EDT, 57 minutes before
VTZ001-002-003-NYZ011-231830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 131 PM EDT MON JUL 23 1990 THUNDERSTORM ARE MOVING THROUGH NORTHERN VERMONT. AT 130 PM...THUNDERSTORMS WERE MOVING THROUGH THE CHAMPLAIN VALLEY OF NEW YORK AND VERMONT AND INTO THE NORTHEAST KINGDOM. THE THUNDERSTORMS HAVE BEEN PRODUCING LOCALLY HEAVY RAINFALL AS THEY MOVE THROUGH THE AREA. THE THUNDERSTORMS ARE MOVING NORTHEAST AT 30 MILES AN HOUR. ADDITIONAL THUNDERSTORMS WILL LIKELY MOVE THROUGH NORTHERN VERMONT IN THE NEXT FEHOURS. THESE THUNDERSTORMS WILL LIKELY PRODUCE HEAVY DOWNPOURS AND MAY PRODUCE SOME LOCALIZED STREET FLOODING. IF YOU ARE TRAVELING THIS AFTERNOON...BE PREPARE+D FOR SOME HEAVY RAIN AND WATCH OUT FOR WATER COLLECTING ON ROADWAYS. END...AS
Special weather statement, Jul 23, 1:33 PM EDT, 56 minutes before
VTZ001-002-003-NYZ011-231830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 131 PM EDT MON JUL 23 1990 THUNDERSTORM ARE MOVING THROUGH NORTHERN VERMONT. AT 130 PM...THUNDERSTORMS WERE MOVING THROUGH THE CHAMPLAIN VALLEY OF NEW YORK AND VERMONT AND INTO THE NORTHEAST KINGDOM. THE THUNDERSTORMS HAVE BEEN PRODUCING LOCALLY HEAVY RAINFALL AS THEY MOVE THROUGH THE AREA. THE THUNDERSTORMS ARE MOVING NORTHEAST AT 30 MILES AN HOUR. ADDITIONAL THUNDERSTORMS WILL LIKELY MOVE THROUGH NORTHERN VERMONT IN THE NEXT FEW HOURS. THESE THUNDERSTORMS WILL LIKELY PRODUCE HEAVY DOWNPOURS AND MAY PRODUCE SOME LOCALIZED STREET FLOODING. IF YOU ARE TRAVELING THIS AFTERNOON...BE PREPARED F0OR SOME HEAVY RAIN AND WATCH OUT FOR WATER COLLECTING ON ROADWAYS. END...AS
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:19 PM EDT | Flash Flood Warning | BTV | Addison | 3 hr |
Nearby
Flash Flood Warnings in Vermont, 1990Every flash flood 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.