Alert archive / Vermont / Flash Flood Warnings in 1990
Flash Flood Warning 34, NWS Burlington, VT
NWS Burlington, VT issued this flash flood warning at Jul 4, 1990, 10:58 PM EDT for Washington County, Vermont. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1990, 10:58 PM EDT (02:58 UTC)
- Expired
- Jul 5, 1990, 1:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Burlington, VT
- Area
- Whole counties
County 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 00:00Z, 3.0 hours before the alert went out and 193 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
- 3622 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 178 m²/s²
- 0-3 km storm-relative helicity
- 205 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 050306 RRA FFWBTV VTC023-050530- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE BURLINGTON VT 1058 PM EDT WED JUL 4 1990 THE NATIONAL WEATHER SERVICE IN BURLINGTON VT HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 130 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN NORTH CENTRAL VERMONT ...WASHINGTON COUNTY SHOWERS AND THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTHERN VERMONT LATE THIS EVENING. 3 TO 4 INCHES OF RAIN HAS FALLEN OVER PARTS OF WASHINGTON COUNTY TODAY...WASHING OUT A BRIDGE NORTH OF WORCESTER...AND FLOODING OTHER ROADS AT TIMES. ADDITIONAL RAIN IS APPROACHING THE AREA...AND WILL AGGRAVATE THE FLOODING OVERNIGHT. A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MANY FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MLOVE UP 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 4, 10:31 PM EDT, 27 minutes before
VTZ001-002-003-004-005-NYZ011-050530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 1013 PM EDT WED JUL 4 1990 THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT FOR MUCH OF VERMONT TONIGHT HAS EXPIRED... A FLOOD WATCH IS IN EFFECT FOR ALL OF VERMONT EXCEPT BENNINGTON AND WINDHAM COUNTIES UNTIL 7 AM THURSDAY MORNING... FLOOD WARNINGS REMAIN IN EFFECT FOR WASHINGTON COUNTY UNTIL 1115PM... FRANKLIN AND CHITTENDEN COUNTIES UNTIL 115AM...AND FOR LAMOILLE COUNTY UNTIL 130AM... SHOWERS AND THUNDERSTORMS CONTINUE ACROSS NORTHERN VERMONT...NORTHERN NEW HAMSHIRE AND NORTHEAST NEW YORK LATE THIS EVENING...BUT THE RISK OF DAMAGING WINDS AND HAIL APPEARS TO HAVE ENDED IN VERMONT. THERE STILL ARE FLOODING PROBLEMS...HOWEVER...WHICH WILL CONTINUE THROUGH THE NIGHT. ^ THUNDERSTORMS DROPPED UP TO FOUR INCHES OF RAIN OVER PARTS OF NORTHERN VERMONT TODAY...CAUSING FLOODING OF SOME STREAMS AND RIVERS. MORE THUNDERSTORMS WILL MOVE OVER THE GREEN MOUNTAIN STATE OVERNIGHT... WHICH MAY CAUSE ADDITIONAL FLOODING. STAY TUNED TO YOUR WEATHER RADIO OR COMMERCIAL RADIO OR T.V. STATION FOR THE LATEST WEATHER INFORMATION. MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNIN G IS ISSUED. END/RM/AS
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 8:07 PM EDT | Flash Flood Warning | BTV | Washington | 3 hr |
| Jul 4, 9:07 PM EDT | Flash Flood Warning | BTV | Chittenden, Franklin | 4 hr |
| Jul 4, 9:32 PM EDT | Flash Flood Warning | BTV | Lamoille | 4 hr |
| Jul 4, 11:40 PM EDT | Severe Thunderstorm Warning | BTV | Orange, Washington | 65 min |
| Jul 5, 1:29 AM EDT | Severe Thunderstorm Warning | BTV | Bennington, Windham | 61 min |
| Jul 5, 2:24 AM EDT | Severe Thunderstorm Warning | BTV | Caledonia, Washington | 66 min |
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.