Alert archive / Vermont / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Burlington, VT

May 27, 20116 counties in Vermont

NWS Burlington, VT issued this flash flood warning at May 27, 2011, 4:07 AM EDT for 6 counties in Vermont. It was in force for 3 hr. 13 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 27, 2011, 4:07 AM EDT (08:07 UTC)
Expired
May 27, 2011, 7:36 AM EDT
In force
3 hr
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Flood severity
None

Counties Caledonia County, VT, Essex County, VT, Lamoille County, VT, Orange County, VT, Orleans County, VT, Washington County, VT

The radar

The Burlington radar (KCXX), 98 km from the middle of the area, began a volume at 08:08 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 27, 4:30 AM EDTFLOODNorthfield Falls, VTROUTE 12 CLOSED FROM NORTHFIELD FALLS TO MONTPELIER
May 27, 4:30 AM EDTFLOODPassumpsic, VTROUTE 5 CLOSED
May 27, 4:30 AM EDTFLOODPlainfield, VTROUTE 2 CLOSED EAST OF THE VILLAGE NEAR THE ONION RIVER
May 27, 4:30 AM EDTFLOODSt. Johnsbury, VTROUTE 2 CLOSED FROM ST JOHNSBURY TO LUNENBURG WITH AREAS UNDERWATER
May 27, 4:30 AM EDTFLOODSt. Johnsbury Center, VTROUTE 5 CLOSED FROM ST JOHNSBURY CENTER TO LYNDONVILLE
May 27, 4:30 AM EDTFLOODWilliamstown, VTROUTE 14 CLOSED
May 27, 4:30 AM EDTFLASH FLOOD2 W Groton, VTROUTE 232 WEST OF GROTON IS CLOSED
May 27, 4:30 AM EDTFLASH FLOOD8 Sw Groton, VTROUTE 302 AT ROUTE 25
May 27, 4:30 AM EDTFLASH FLOODBarre, VTROUTE 14 IN THE VICINITY OF GILLIES MARINE
May 27, 4:30 AM EDTFLASH FLOODEast Montpelier, VTROUTE 2 CLOSED
May 27, 4:30 AM EDTFLASH FLOODGroton, VTROUTE 302 FROM ROUTE 232 TO POWDER SPRING ROAD CLOSED
May 27, 4:30 AM EDTFLASH FLOODMiddlesex, VTROUTE 2 CLOSED TO MONTPELIER
May 27, 4:30 AM EDTFLASH FLOODSouth Barre, VTROUTE 14 CLOSED IN VICINITY OF HANNAFORDS TO ROUTE 63

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

The nearest sounding before it

Gray, ME (KGYX), launched 00:00Z, 8.1 hours before the alert went out and 150 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, Gray, ME at 00:00Z on 2011-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Gray, ME at 00:00Z on 2011-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
800 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

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

151 
WGUS51 KBTV 270807
FFWBTV
VTC005-009-015-017-019-023-271200-
/O.NEW.KBTV.FF.W.0013.110527T0807Z-110527T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
407 AM EDT FRI MAY 27 2011

THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN ORANGE COUNTY IN CENTRAL VERMONT
  WASHINGTON COUNTY IN CENTRAL VERMONT
  CALEDONIA COUNTY IN NORTHEAST VERMONT
  ESSEX COUNTY IN NORTHEAST VERMONT
  ORLEANS COUNTY IN NORTHEAST VERMONT
  EASTERN LAMOILLE COUNTY IN NORTHWEST VERMONT

* UNTIL 800 AM EDT

* AT 402 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED CONTINUED 
  FLASH FLOODING FROM MONTPELIER...TO BARRE...TO DANVILLE...TO ST. 
  JOHNSBURY. ROUTE 2 IN DANVILLE IS CLOSED. ADDITIONAL ROAD WASHOUTS 
  AND CLOSURES HAVE BEEN REPORTED ACROSS CENTRAL AND NORTHEASTERN 
  VERMONT. THIS IS A LIFE THREATENING SITUATION...USE EXTREME 
  CAUTION TRAVELING THIS MORNING. WASHOUTS ALONG SECONDARY ROUTES 
  MAY NOT YET BE MARKED BY LAW ENFORCEMENT SINCE THE FLASH FLOODING 
  HAS TAKEN PLACE AT NIGHT.  

* LOCATIONS IN THE WARNING INCLUDE  BUT ARE NOT LIMITED TO WOLCOTT...
  WESTMORE...WESTFIELD...WEST BURKE...VICTORY...STANNARD...
  SHEFFIELD...ORLEANS...NORTON...NEWPORT CENTER...NEWPORT...
  MORRISVILLE...MORGAN CENTER...MAIDSTONE...LYNDONVILLE...LOWELL...
  ISLAND POND...HYDE PARK...GREENSBORO...GRANBY...GLOVER...EDEN...
  EAST HAVEN...EAST CHARLESTON...DERBY LINE...DERBY CENTER...
  CRAFTSBURY...COVENTRY...BARTON...ALBANY...EAST HARDWICK...EAST
  ALBANY...WEST GLOVER...WEST CHARLESTON...TROY...SUTTON...MAIDSTONE
  STATE PARK...HOLLAND...EAST BURKE AND BROWNINGTON CENTER

* RAIN IS MOVING OUT OF THE AREA...AND WATER LEVELS SHOULD BEGIN TO 
  RECEDE BY 8 AM. ADDITIONAL SHOWERS AND THUNDERSTORMS WILL 
  REDEVELOP ACROSS CENTRAL AND NORTHEAST VERMONT DURING THE DAYLIGHT 
  HOURS AND ADDITIONAL FLASH FLOODING IS POSSIBLE LATER TODAY. 

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...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4502 7149 4499 7153 4495 7151 4475 7162
      4458 7153 4456 7159 4453 7157 4449 7159
      4440 7172 4439 7179 4435 7182 4432 7202
      4428 7206 4414 7206 4408 7219 4400 7242
      4407 7264 4424 7280 4458 7268 4501 7237

$$

BANACOS
1 follow-up statement
738 
WGUS71 KBTV 271136
FFSBTV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
736 AM EDT FRI MAY 27 2011

VTC005-009-015-017-019-023-271139-
/O.CAN.KBTV.FF.W.0013.000000T0000Z-110527T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CALEDONIA VT-LAMOILLE VT-ORANGE VT-ORLEANS VT-WASHINGTON VT-ESSEX VT-
736 AM EDT FRI MAY 27 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WASHINGTON AND
NORTHERN ORANGE COUNTIES IN CENTRAL VERMONT...AND ESSEX...ORLEANS AND
CALEDONIA COUNTIES IN NORTHEAST VERMONT...AND EASTERN LAMOILLE COUNTY
IN NORTHWEST VERMONT...

THE IMMEDIATE THREAT OF FLASH FLOODING HAS ENDED ACROSS CENTRAL AND 
NORTHEAST VERMONT. HOWEVER...A FLASH FLOOD WATCH REMAINS IN EFFECT 
THROUGH 4 AM SATURDAY...WITH ADDITIONAL SHOWERS AND THUNDERSTORMS 
EXPECTED TODAY. 

USE CAUTION IF TRAVELING ACROSS CENTRAL AND NORTHEAST VERMONT 
TODAY...AS MANY REPORTS OF FLOODING AND ROAD WASHOUTS WERE RECEIVED 
OVERNIGHT.  

LAT...LON 4502 7149 4499 7153 4495 7151 4475 7162
      4458 7153 4456 7159 4453 7157 4449 7159
      4440 7172 4439 7179 4435 7182 4432 7202
      4428 7206 4414 7206 4408 7219 4400 7242
      4407 7264 4424 7280 4458 7268 4501 7237

$$

BANACOS

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 8:13 PM EDTTornado WarningBTVCaledonia, Essex, Orange, Washington47 min
May 26, 8:19 PM EDTFlash Flood WarningBTVAddison, Chittenden3 hr
May 26, 8:23 PM EDTSevere Thunderstorm WarningBTVOrange, Washington36 min
May 26, 8:29 PM EDTFlash Flood WarningBTVAddison, Caledonia, Chittenden, Essex, Lamoille, Orange and 4 more3 hr
May 26, 8:44 PM EDTFlash Flood WarningBTVAddison, Rutland6 hr
May 26, 9:03 PM EDTSpecial Weather StatementBTVCaledonia42 min
May 26, 10:15 PM EDTSpecial Weather StatementBTVEssex30 min
May 26, 10:28 PM EDTFlash Flood WarningBTVAddison, Caledonia, Chittenden, Essex, Franklin, Grand Isle and 6 more6 hr
May 26, 11:59 PM EDTRiver Flood WarningBTVWashington13 hr
May 26, 11:59 PM EDTRiver Flood WarningBTVChittenden39 hr
May 27, 12:16 AM EDTSevere Thunderstorm WarningBTVRutland, Windsor43 min
May 27, 1:01 AM EDTRiver Flood WarningBTVCaledonia42 hr
May 27, 5:02 PM EDTSevere Thunderstorm WarningBTVAddison58 min
May 27, 5:11 PM EDTSevere Thunderstorm WarningBTVOrange, Rutland, Windsor64 min
May 27, 5:38 PM EDTSpecial Weather StatementBTVCaledonia37 min
May 27, 5:47 PM EDTSevere Thunderstorm WarningBTVAddison58 min
May 27, 6:32 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex28 min
May 27, 6:35 PM EDTFlash Flood WarningBTVAddison, Chittenden, Lamoille, Washington4 hr
May 27, 6:35 PM EDTSpecial Weather StatementBTVWashington25 min
May 27, 6:42 PM EDTSevere Thunderstorm WarningBTVCaledonia, Lamoille, Orange, Orleans, Washington63 min
May 27, 6:46 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex, Lamoille, Orleans, Washington59 min
May 27, 6:49 PM EDTSpecial Weather StatementBTVAddison26 min
May 27, 6:52 PM EDTSevere Thunderstorm WarningBTVWindsor40 min
May 27, 7:05 PM EDTFlash Flood WarningBTVCaledonia, Essex, Franklin, Lamoille, Orange, Orleans and 1 more3 hr
May 27, 7:27 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex, Orange, Washington63 min
May 27, 7:30 PM EDTSpecial Weather StatementBTVAddison30 min
May 27, 7:31 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex34 min

Nearby

Flash Flood Warnings in Vermont, 2011Every flash flood warning in 2011

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.