Alert archive / Vermont / Flash Flood Warnings in 1990
Flash Flood Warning 29, NWS Burlington, VT
NWS Burlington, VT issued this flash flood warning at Jul 4, 1990, 4:18 PM EDT for Lamoille County, Vermont. It was in force for 117 min.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1990, 4:18 PM EDT (20:18 UTC)
- Expired
- Jul 4, 1990, 6:15 PM EDT
- In force
- 117 min
- 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 12:00Z, 8.3 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
- 3605 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 198 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 042019 FFWBTV VTC015-042215- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE BURLINGTON VT 418 PM EDT WED JUL 4 1990 THE NATIONAL WEATHER SERVICE IN BURLINGTON VT HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 615 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN NORTH CENTRAL VERMONT ...LAMOILLE COUNTY AT 410 PM...A SKYWARN SPOTTER IN JEFFERSONVILLE REPORTED OVER 2 INCHES OF RAIN HAS FALLEN SINCE 200 PM. MINOR ROAD WASHOUTS HAVE BEEN REPORTED IN CAMBRIDGE AND JEFFERSONVILLE. WEATHER RADAR SHOWED SHOWERS AND THUNDERSTORMS...MANY PRODUCING HEAVY DOWNPOURS...OVER WESTERN LAMOILE COUNTY. MORE SHOWERS AND THUNDERSTORMS ARE IN SOUTHERN FRANKLIN COUNTY OF VERMONT AND CLINTON COUNTY OF NEW YORK. THESE STORMS WERE MOVING SOUTHEAST AT 40 MPH...AND LAMOILE COUNTY WILL CONTINUE TO RECEIVE OCCASIONALLY HEAVY RAINS UNTIL 600 PM. IF YOU LIVE IN OR NEAR THIS AREA...BE ALERT FOR RAPIDLY RISING WATERS. ROADS MAY WASH OUT WITH LITTLE OR NO WARNING...AND RIVERS AND STREAMS MAY OVERFLOW THEIR BANKS. BE PREPARED TO MOVE TO HIGHER GROUND. 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. 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 4, 11:00 AM EDT, 5 hours 18 minutes before
VTZALL-NYZ011-050000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 1100 AM EDT WED JUL 4 1990 ...BOATERS AND VACATIONERS SHOULD KEEP AN EYE ON THE SKY THIS AFTERNOON AND EVENING... STRONG SOUTH WINDS ARE BRINGING VERY WARM AND INCREASINGLY HUMID AIR INTO THE NORTHEAST TODAY. HIGH TEMPERATURES IN VERMONT AND NORTHERN NEW YORK WILL BE IN THE 80S WITH SOME LOCATIONS REACHING THE LOWER 90S...ESPECIALLY IN SOUTHERN VERMONT. THE HOT AND HUMID AIR WILL HELP KICK OFF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS THE REGION...SOME OF WHICH COULD CONTAIN HEAVY RAIN...DANGEROUS LIGHTNING...GUSTY AND SHIFTING WINDS ...AND POSSIBLY SOME HAIL. IF YOU ARE BOATING ON LAKE CHAMPLAIN OR ANY OF THE OTHER WATERWAYS IN THE REGION THIS AFTERNOON...YOU SHOULD BE PREPARED TO HEAD TO SHORE IF THREATENING WEATHER DEVELOPS IN YOUR AREA. EVEN IF YOU AREN/T BOATING THIS AFTERNOON...YOU SHOULD TAKE SHELTER IF A THUNDERSTORM APPROACHES. TAKE SOME TIME TO PLAN WHERE YOU YOU WOULD GO FOR SAFETY IF THUNDERSTORMS WERE TO STRIKE. YOUR NATIONAL WEATHER SERVICE WILL MONITOR THIS SITUATION CLOSELY. STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR RADIO STATIONS FOR LA*TER FORECASTS AND STATEMENTS. REYNOLDS
Special weather statement, Jul 4, 12:55 PM EDT, 3 hours 23 minutes before
VTZ001-NYZ011-041800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 1254 PM EDT WED JUL 4 1990 ...THUNDERSTORMS WERE MOVING INTO CLINTON COUNTY NEW YORK... ...SPECIAL MARINE ADVISORY IN EFFECT FOR NORTHERN LAKE CHAMPLAIN UNTIL 200 PM... A SPECIAL MARINE ADVISORY IS IN EFFECT FOR LAKE CHAMPLAIN AND ITS SHORES FROM FORT KENT NEW YORK AND BURLINGTON NORTH TO THE CANADIAN BORDER. AT 1250 PM...WEATHER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN...AND POSSIBLY SOME SMALL HAIL IN NORTHWEST CLINTON COUNTY JUST NORTHWEST OF ELLENBURG DEPOT. THIS STORM WAS MOVING SOUTHEAST AT 40 MPH. THIS STORM WILL REACH PLATTSBURGH BY 115 PM...AND LAKE CHAMPLAIN JUST BEFORE 130 PM. IF YOU ARE IN THE PATH OF THIS STORM...BE PREPARED FOR VERY HEAVY RAIN...FREQUENT LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY SMALL HAIL. BOATERS ON THE NORTHERN HALF OF LAKE CHAMPLAIN SHOULD HEAD TO SHORE IMMEADIATELY UNTIL THE STORM PASSES. REYNOLDS
Special weather statement, Jul 4, 12:58 PM EDT, 3 hours 20 minutes before
VTZ001-NYZ011-041800- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE BURLINGTON VT 1254 PM EDT WED JUL 4 1990 ...THUNDERSTORMS WERE MOVING INTO CLINTON COUNTY NEW YORK... ...SPECIAL MARINE ADVISORY IN EFFECT FOR NORTHERN LAKE CHAMPLAIN UNTIL 200 PM... A SPECIAL MARINE ADVISORY IS IN EFFECT FOR LAKE CHAMPLAIN AND ITS SHORES FROM PORT KENT NEW YORK AND BURLINGTON NORTH TO THE CANADIAN BORDER. AT 1250 PM...WEATHER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN...AND POSSIBLY SOME SMALL HAIL IN NORTHWEST CLINTON COUNTY JUST NORTHWEST OF ELLENBURG DEPOT. THIS STORM WAS MOVING SOUTHEAST AT 40 MPH. THIS STORM WILL REACH PLATTSBURGH BY 115 PM...AND LAKE CHAMPLAIN JUST BEFORE 130 PM. IF YOU ARE IN THE PATH OF THIS STORM...BE PREPARED FOR VERY HEAVY RAIN...FREQUENT LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY SMALL HAIL. BOATERS ON THE NORTHERN HALF OF LAKE CHAMPLAIN SHOULD HEAD TO SHORE IMMEADIATELY UNTIL THE STORM PASSES. REYNOLDS
Special weather statement, Jul 4, 2:03 PM EDT, 2 hours 15 minutes before
VTZ001-002-003-NYZ011-041900- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BURLINGTON VT 201 PM EDT WED JUL 4 1990 THUNDERSTORMS CONTINUE OVER NORTHERN NEW YORK AND VERMONT... AT 155 PM...A THUNDERSTORM PORDUCING VERY HEAVY RAINFALL WAS IN SOUTHWEST FRANKLIN COUNTY VERMONT NEAR ST. ALBANS. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 40 MILES AN HOUR. PERSONS IN SOUTHERN FRANKLIN AND NORTHERN CHITTENDEN COUNTIES SHOULD BE PREPARED FOR HEAVY RAIN...STRONG GUSTY WINDS AND POSSIBLE SMALL HAIL. ANOTHER THUNDERSTORM PRODUCING VERY HEAVY RAINFALL WAS EAST OF SOUTH BOXTON QUEBEC. OTHER SHOWERS AND THUNDERSTORMS ARE OVER NORTHERN VERMONT...NORTHERN NEW YORK AND SOUTHERN QUEBEC. THE SHOWERS AND THUNDERSTORMS WERE NORTH OF A LINE FROM SARANAC LAKE NEW YORK TO BURLINGTON TO THE CANADIAN BORDER NEAR CANAAN VERMONT IN ESSEX COUNTY. MOVEMENT WAS TO THE SOUTHEAST AT 40 MILES AN HOUR. IF YOU ARE OUTDOORS TODAY...KEEP AN EYE TO THE SKIES AND MOVE TO A STURDY SHELTER IF THUNDERSTORMS APPROACH YOUR AREA. END...AS
Special weather statement, Jul 4, 2:49 PM EDT, 1 hour 29 minutes before
NYC019-VTC001-005-007-009-011-013-015-017-019-021-023-027-042045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 248 PM EDT WED JUL 4 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF VERMONT AND NORTHERN NEW YORK UNTIL 10 PM THIS EVENING. AT 245 PM...THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL WERE NEAR ELLENBURG DEPOT NEW YORK...JUST SOUTH OF ST. ALBANS AND NORTH OF UNDERHILL IN CHITTENDEN COUNTY. THESE THUNDERSTORMS WERE PART OF A LARGER AREA OF SHOWERS AND THUNDERSTORMS THAT COVERED MUCH OF NORTHERN NEW YORK...NORTHERN VERMONT AND SOUTHERN QUEBEC. THE SHOWERS AND THUNDERSTORMS WERE NORTH OF A LINE FROM RAY BROOK NEW YORK TO BURLINGTON TO MONTPELIER. THE SHOWERS AND THUNDERSTORMS ARE MOVING SOUTHEAST AT 40 MILES AN HOUR. IF YOU ARE OUTDOORS...BE ON THE LOOKOUT FOR THUNDERSTORMS THAT MAY PASS THROUGH YOUR AREA. BE READY TO SEEK SHELTER SINCE THE STORMS MAY PRODUCE HEAVY RAINFALL...STRONG GUSTY WXINDS AND SMALL HAIL. KEEP TUNED TO NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION FOR LATER STATEMENTS AND POSSIBLE WARNINGS. THE NEXT STATEMENT WILL BE ISSUED BY 500 PM. END...AS
Special weather statement, Jul 4, 4:09 PM EDT, 9 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, 6:06 PM EDT | Flash Flood Warning | BTV | Washington | 2 hr |
| Jul 4, 7:16 PM EDT | Severe Thunderstorm Warning | BTV | Washington | 44 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.