Alert archive / Vermont / Flash Flood Warnings in 2012

Flash Flood Warning 1, NWS Burlington, VT

May 29, 2012Addison County, Vermont; Essex County, New York

NWS Burlington, VT issued this flash flood warning at May 29, 2012, 2:59 PM EDT for Addison County, Vermont; Essex County, New York. It was in force for 4 hr. 10 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 29, 2012, 2:59 PM EDT (18:59 UTC)
Expired
May 29, 2012, 7:00 PM EDT
In force
4 hr
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Flood severity
None

Counties Essex County, NY, Addison County, VT

The radar

The Burlington radar (KCXX), 66 km from the middle of the area, began a volume at 18:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
May 29, 4:06 PM EDTFLOODShoreham, VTFLOODING ON ROUTE 22A.
May 29, 4:06 PM EDTFLASH FLOODShoreham, VTFLOODING ON ROUTE 22A.
May 29, 4:10 PM EDTFLOODCornwall, VTROAD FLOODING ON RTE 30 AND 74
May 29, 4:10 PM EDTFLASH FLOODCornwall, VTROAD FLOODING ON RTE 30 AND 74
May 29, 4:12 PM EDTFLOODCornwall, VTCLARK RD... ROUTE 74 AND PORKHILL RD CLOSED DUE TO FLOODING.
May 29, 4:12 PM EDTFLASH FLOODCornwall, VTCLARK RD... ROUTE 74 AND PORKHILL RD CLOSED DUE TO FLOODING.
May 29, 4:39 PM EDTFLASH FLOODRipton, VTROUTE 125 IS FLOODED.
May 29, 4:57 PM EDTFLASH FLOODRipton, VTNORTH BRANCH ROAD IS FLODDED.
May 29, 5:40 PM EDTHEAVY RAIN 3.5Ripton, VT
May 29, 6:43 PM EDTFLASH FLOODCornwall, VTROUTE 30 CLOSED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.0 hours before the alert went out and 145 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2012-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1908 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2012-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1908 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1026 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

780 
WGUS51 KBTV 291859
FFWBTV
NYC031-VTC001-292300-
/O.NEW.KBTV.FF.W.0001.120529T1859Z-120529T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
259 PM EDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN ADDISON COUNTY IN CENTRAL VERMONT
  SOUTHEASTERN ESSEX COUNTY IN NORTHERN NEW YORK

* UNTIL 700 PM EDT

* AT 254 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAINFALL CAPABLE OF PRODUCING FLASH FLOODING. SMALL CREEKS
  AND STREAMS WILL QUICKLY LEAVE THEIR BANKS. CULVERTS...BRIDGES...
  AND ROADSIDE DITCHES WILL BE OVERWHELMED BY WATER...AND ROAD
  WASHOUTS ARE LIKELY. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
  TICONDEROGA...CROWN POINT...BRISTOL AND RIPTON.

IF YOU ENCOUNTER FLOODING...SEEK HIGHER GROUND IMMEDIATELY. WHEN YOU
CAN DO SO SAFELY PLEASE REPORT ANY FLOODING TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1 800 8 6 3 4 2 7 9...OR BY SUBMITTING
A STORM REPORT AT WEATHER.GOV/BURLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY AWAY FROM FLOOD WATERS. MOVE TO HIGHER GROUND IF YOU ARE
THREATENED BY FLOODING OR ARE DIRECTED BY EMERGENCY OFFICIALS. DO NOT
DRIVE INTO AREAS WHERE THE WATER COVERS THE ROADWAY...THE ROAD MAY BE
WASHED AWAY BENEATH THE WATER SURFACE...AND IT ONLY TAKES A FEW
INCHES OF FLOWING WATER TO CARRY AWAY YOUR VEHICLE. MOST FLOOD DEATHS
OCCUR IN AUTOMOBILES...MAKE THE SMART CHOICE...TURN AROUND...DONT
DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING...
AND IMMEDIATE ACTION MUST BE TAKEN TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4412 7383 4411 7293 4408 7292 4407 7289
      4390 7289 4387 7297 4383 7296 4381 7300
      4385 7303 4384 7322 4378 7322 4377 7336
      4380 7338 4377 7379

$$

NEILES
3 follow-up statements
022 
WGUS71 KBTV 292007
FFSBTV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
407 PM EDT TUE MAY 29 2012

NYC031-VTC001-292300-
/O.CON.KBTV.FF.W.0001.000000T0000Z-120529T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESSEX NY-ADDISON VT-
407 PM EDT TUE MAY 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
SOUTHEASTERN ESSEX COUNTY IN NORTHERN NEW YORK...AND SOUTHERN ADDISON
COUNTY IN CENTRAL VERMONT...

SPOTTERS HAVE REPORTED FLASH FLOODING. 22A IN SHOREHAM AND ROUTE 74 
JUNCTION WITH 30 IN CORNWALL ARE FLOODED. MOTORISTS SHOULD SEEK 
ALTERNATE ROUTES.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
MIDDLEBURY...TICONDEROGA...CROWN POINT...BRISTOL AND RIPTON.

RAINFALL RANGING FROM TWO TO FOUR AND A HALF INCHES HAS FALLEN FROM 
TICONDEROGA EASTWARD THROUGH SHOREHAM AND OVER TO MIDDLEBURY.  
ADDITIONAL RAINFALL IS MOVING INTO THE WARNING AREA. MORE RAIN IS 
MOVING TOWARDS RIPTON...GRANVILLE AND HANCOCK. FLASH FLOODING IS 
POSSIBLE IN THE HEADWATERS OF THE MIDDLEBURY RIVER AND THE HANCOCK 
BRANCH. 

IF YOU ENCOUNTER FLOODING...SEEK HIGHER GROUND IMMEDIATELY. WHEN YOU
CAN DO SO SAFELY PLEASE REPORT ANY FLOODING TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1 800 8 6 3 4 2 7 9...OR BY SUBMITTING
A STORM REPORT AT WEATHER.GOV/BURLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY AWAY FROM FLOOD WATERS. MOVE TO HIGHER GROUND IF YOU ARE
THREATENED BY FLOODING OR ARE DIRECTED BY EMERGENCY OFFICIALS. DO NOT
DRIVE INTO AREAS WHERE THE WATER COVERS THE ROADWAY...THE ROAD MAY BE
WASHED AWAY BENEATH THE WATER SURFACE...AND IT ONLY TAKES A FEW
INCHES OF FLOWING WATER TO CARRY AWAY YOUR VEHICLE. MOST FLOOD DEATHS
OCCUR IN AUTOMOBILES...MAKE THE SMART CHOICE...TURN AROUND...DONT
DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING...
AND IMMEDIATE ACTION MUST BE TAKEN TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4412 7383 4411 7293 4408 7292 4407 7289
      4390 7289 4387 7297 4383 7296 4381 7300
      4385 7303 4384 7322 4378 7322 4377 7336
      4380 7338 4377 7379

$$

NEILES
049 
WGUS71 KBTV 292101
FFSBTV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
501 PM EDT TUE MAY 29 2012

NYC031-VTC001-292300-
/O.CON.KBTV.FF.W.0001.000000T0000Z-120529T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESSEX NY-ADDISON VT-
501 PM EDT TUE MAY 29 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
SOUTHEASTERN ESSEX COUNTY IN NORTHERN NEW YORK...AND SOUTHERN ADDISON
COUNTY IN CENTRAL VERMONT...

SPOTTERS HAVE REPORTED FLASH FLOODING. THERE HAS BEEN FLOODING 
REPORTED ON ROUTES 22A...30...74...AND 125.  

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
MIDDLEBURY...TICONDEROGA...CROWN POINT...BRISTOL AND RIPTON.

RAINFALL RANGING FROM THREE TO FIVE AND A HALF INCHES HAS FALLEN 
FROM TICONDEROGA EASTWARD THROUGH SHOREHAM AND OVER TO MIDDLEBURY.  
ADDITIONAL RAINFALL IS MOVING INTO THE WARNING AREA. MORE RAIN IS 
MOVING TOWARDS RIPTON...GRANVILLE AND HANCOCK. FLASH FLOODING IS 
POSSIBLE IN THE HEADWATERS OF THE MIDDLEBURY RIVER AND THE HANCOCK 
BRANCH. 

IF YOU ENCOUNTER FLOODING...SEEK HIGHER GROUND IMMEDIATELY. WHEN YOU
CAN DO SO SAFELY PLEASE REPORT ANY FLOODING TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1 800 8 6 3 4 2 7 9...OR BY SUBMITTING
A STORM REPORT AT WEATHER.GOV/BURLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY AWAY FROM FLOOD WATERS. MOVE TO HIGHER GROUND IF YOU ARE
THREATENED BY FLOODING OR ARE DIRECTED BY EMERGENCY OFFICIALS. DO NOT
DRIVE INTO AREAS WHERE THE WATER COVERS THE ROADWAY...THE ROAD MAY BE
WASHED AWAY BENEATH THE WATER SURFACE...AND IT ONLY TAKES A FEW
INCHES OF FLOWING WATER TO CARRY AWAY YOUR VEHICLE. MOST FLOOD DEATHS
OCCUR IN AUTOMOBILES...MAKE THE SMART CHOICE...TURN AROUND...DONT
DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING...
AND IMMEDIATE ACTION MUST BE TAKEN TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4412 7383 4411 7293 4408 7292 4407 7289
      4390 7289 4387 7297 4383 7296 4381 7300
      4385 7303 4384 7322 4378 7322 4377 7336
      4380 7338 4377 7379

$$

NEILES
381 
WGUS71 KBTV 292308
FFSBTV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
708 PM EDT TUE MAY 29 2012

NYC031-VTC001-292318-
/O.EXP.KBTV.FF.W.0001.000000T0000Z-120529T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESSEX NY-ADDISON VT-
708 PM EDT TUE MAY 29 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN ESSEX COUNTY
IN NORTHERN NEW YORK...AND SOUTHERN ADDISON COUNTY IN CENTRAL
VERMONT...

WHILE THE FLASH FLOOD THREAT HAS ENDED...THE HAZARDS CREATED BY
FLOODING WILL REMAIN. STREAMS WILL CONTINUE TO RUN HIGH...AND
ROADS...BRIDGES AND CULVERTS MAY HAVE BEEN WASHED OUT. OBEY ALL ROAD
CLOSURE SIGNS...THEY ARE THERE FOR YOUR SAFETY...AND DO NOT DRIVE
THROUGH DAMAGED AREAS.

LAT...LON 4412 7383 4411 7293 4408 7292 4407 7289
      4390 7289 4387 7297 4383 7296 4381 7300
      4385 7303 4384 7322 4378 7322 4377 7336
      4380 7338 4377 7379

$$

NEILES

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 29, 12:00 AM EDTSpecial Weather StatementBTVOrange, Windsor60 min
May 29, 12:06 AM EDTSevere Thunderstorm WarningBTVOrange, Windsor39 min
May 29, 1:12 AM EDTSevere Thunderstorm WarningBTVCaledonia, Orange, Washington63 min
May 29, 1:30 AM EDTSevere Thunderstorm WarningBTVCaledonia, Essex, Orange, Washington60 min
May 29, 2:29 AM EDTSevere Thunderstorm WarningBTVAddison, Chittenden, Washington41 min
May 29, 2:48 AM EDTSpecial Weather StatementBTVFranklin, Orleans57 min
May 29, 4:12 AM EDTSpecial Weather StatementBTVChittenden63 min
May 29, 4:28 AM EDTSevere Thunderstorm WarningBTVAddison, Chittenden62 min
May 29, 4:46 AM EDTSpecial Weather StatementBTVGrand Isle29 min
May 29, 5:05 AM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle, Lamoille, Orleans55 min
May 29, 6:26 AM EDTSevere Thunderstorm WarningBTVAddison64 min
May 29, 7:07 AM EDTFlash Flood WatchBTVAddison, Caledonia, Chittenden, Essex, Franklin, Grand Isle and 5 more15 hr
May 29, 8:52 AM EDTSpecial Weather StatementBTVCaledonia, Chittenden, Orange, Washington53 min
May 29, 9:42 AM EDTSpecial Weather StatementBTVCaledonia63 min
May 29, 9:47 AM EDTSpecial Weather StatementBTVEssex28 min
May 29, 12:56 PM EDTSevere Thunderstorm WarningBTVFranklin, Grand Isle34 min
May 29, 1:29 PM EDTSevere Thunderstorm WarningBTVFranklin, Grand Isle, Orleans61 min
May 29, 1:48 PM EDTSevere Thunderstorm WarningBTVAddison, Rutland, Windsor57 min
May 29, 1:51 PM EDTSevere Thunderstorm WarningBTVAddison, Chittenden, Washington84 min
May 29, 1:56 PM EDTSevere Thunderstorm WarningBTVAddison, Rutland64 min
May 29, 2:18 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle57 min
May 29, 2:18 PM EDTTornado WarningBTVFranklin, Lamoille, Orleans57 min
May 29, 2:31 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Lamoille, Washington23 min
May 29, 2:46 PM EDTSevere Thunderstorm WarningBTVAddison, Chittenden, Orange, Rutland, Washington, Windsor59 min
May 29, 2:50 PM EDTTornado WarningBTVCaledonia, Franklin, Lamoille, Orleans25 min
May 29, 3:09 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle, Lamoille66 min
May 29, 3:12 PM EDTTornado WarningBTVCaledonia, Essex, Lamoille, Orleans42 min
May 29, 3:28 PM EDTFlash Flood WarningBTVAddison, Chittenden, Orange, Rutland, Washington, Windsor4 hr
May 29, 3:30 PM EDTSevere Thunderstorm WarningBTVFranklin, Orleans30 min
May 29, 3:41 PM EDTSevere Thunderstorm WarningBTVAddison, Caledonia, Orange, Rutland, Washington, Windsor64 min
May 29, 3:43 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle, Lamoille, Orleans, Washington47 min
May 29, 4:02 PM EDTTornado WarningBTVAddison, Orange, Rutland, Washington, Windsor29 min
May 29, 4:22 PM EDTFlash Flood WarningBTVCaledonia, Chittenden, Essex, Franklin, Lamoille, Orleans and 1 more4 hr
May 29, 4:54 PM EDTSevere Thunderstorm WarningBTVOrange, Rutland, Windsor66 min
May 29, 5:41 PM EDTSpecial Weather StatementBTVRutland, Windsor2 hr
May 29, 6:06 PM EDTSpecial Weather StatementBTVWindsor24 min
May 28, 11:46 PM EDTSpecial Weather StatementBTVEssex59 min
May 29, 12:57 PM EDTSevere Thunderstorm WarningBTVEssex, Franklin, St. Lawrence63 min
May 29, 2:15 PM EDTSpecial Weather StatementBTVEssex3 hr
May 29, 2:39 PM EDTSevere Thunderstorm WarningBTVEssex, Franklin, St. Lawrence66 min

Nearby

Flash Flood Warnings in Vermont, 2012Flash Flood Warnings in New York, 2012Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.