Alert archive / Vermont / Flash Flood Warnings in 1990
Flash Flood Warning 33, NWS Burlington, VT
NWS Burlington, VT issued this flash flood warning at Jul 4, 1990, 9:32 PM EDT for Lamoille County, Vermont. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1990, 9:32 PM EDT (01:32 UTC)
- Expired
- Jul 5, 1990, 1:30 AM EDT
- In force
- 4 hr
- Issued by
- NWS Burlington, VT
- Area
- Whole counties
County Lamoille 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, 1.5 hours before the alert went out and 206 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 050134 FFWBTV VTC015-050530- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE BURLINGTON VT 932 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 ...LAMOILLE COUNTY HEAVY RAINS HAVE FALLEN ACROSS THE COUNTY THIS AFTERNOON AND EVENING...WITH MORE THUNDERSTORMS MOVING ACROSS THE COUNTY AT 925 PM. THIS ADDITIONAL RAIN COMBINED WITH ALREADY SATURATED GROUND WILL PRODUCE MORE FLOODING TONIGHT. ROUTE 15 NEAR CAMBRIDGE AND ROUTE 108 NEAR SMUGGLERS NOTCH WERE PARTIALLY UNDER WATER IN SPOTS. IF YOU LIVE IN THESE AREAS...BE PREPARED TO MOVE TO HIGHER GROUND. TRAVELERS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR WASHOUTS ON ROADWAYS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, 4:09 PM EDT, 5 hours 23 minutes before
VTZ001-002-003-NYZ011-042115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 408 PM EDT WED JUL 4 1990 ...THUNDERSTORMS WERE CONTINUING TO MOVE ACROSS NORTHERN NEW YORK AND VERMONT... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CLINTON COUNTY NEW YORK AND ALL OF VERMONT EXCEPT BENNINGTON AND WINDHAM COUNTIES UNTIL 1000 PM... AT 400 PM...RADAR SHOWED SHOWERS AND THUNDERSTORMS FROM NEAR MASSENA NEW YORK TO NEAR PLATTSBURGH...AND EAST INTO MUCH OF NORTHERN VERMONT AND NORTHWEST NEW HAMPSHIRE. IN VERMONT...THE HEAVIEST RAIN WAS FALLING NEAR BURLINGTON...BRADFORD IN ORANGE COUNTY...AND FROM PLATTSBURGH TO UNDERHILL VERMONT. THE STORMS WERE MOVING SOUTHEAST AT 40 MPH. IF YOU ARE IN THE PATH OF ANY OF THESE STORMS...BE PREPARED FOR VERY HEAVY RAIN...DANGEROUS AND FREQUENT LIGHTNING...STRONG GUSTY WINDS AND HAIL. TAKE SHELTER UNTIL THE STORMS PASS. REYNOLDS
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, 10:58 PM EDT | Flash Flood Warning | BTV | Washington | 3 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.