Alert archive / Vermont / Flash Flood Warnings in 2011

Flash Flood Warning 36, NWS Albany, NY

September 1, 2011Bennington County, Windham County, Vermont

NWS Albany, NY issued this flash flood warning at Sep 1, 2011, 5:11 PM EDT for Bennington County, Windham County, Vermont. It was in force for 4 hr. 3 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: Sep 1, 2011, 5:11 PM EDT (21:11 UTC)
Expired: Sep 1, 2011, 9:17 PM EDT
In force: 4 hr
Issued by: NWS Albany, NY
Area: Storm-based polygon
Flood severity: None

Counties Bennington County, VT, Windham County, VT

The radar

The Albany radar (KENX), 123 km from the middle of the area, began a volume at 21:10 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

Time	Report	Where	Remark
Sep 1, 6:40 PM EDT	FLASH FLOOD	Rawsonville, VT	INTERSECTION ROUTE 100 AND ROUTE 30 CLOSED DUE TO FLASH FLOODING.
Sep 1, 6:40 PM EDT	FLASH FLOOD	Winhall Station, VT	RIVER ROAD CLOSED DUE TO WATER ON THE ROAD.
Sep 1, 7:00 PM EDT	FLASH FLOOD	Rawsonville, VT	ALL ROADS WASHED OUT. MANY RESCUES NEEDED.

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, 9.2 hours before the alert went out and 101 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 803 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 51 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.

117 
WGUS51 KALY 012111
FFWALY
VTC003-025-012315-
/O.NEW.KALY.FF.W.0036.110901T2111Z-110901T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
511 PM EDT THU SEP 1 2011

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN BENNINGTON COUNTY IN SOUTHERN VERMONT...
  NORTH CENTRAL WINDHAM COUNTY IN SOUTHERN VERMONT...
  THIS INCLUDES THE CITY OF LONDONDERRY...

* UNTIL 715 PM EDT

* AT 505 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM A NEARLY STATIONARY THUNDERSTORM PRODUCING     
  VERY HEAVY RAIN.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WINHALL
  STATION...WINDHAM...THOMPSONBURG...SOUTH LONDONDERRY...SHERWOOD
  FOREST...PERU TOWN CENTER...NORTH WINDHAM...NORTH LANDGROVE...
  LAWRENCE FOUR CORNERS...LANDGROVE TOWN CENTER...FRENCH HOLLOW...
  BROMLEY VILLAGE AND PERU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

&&

LAT...LON 4308 7273 4312 7296 4328 7294 4327 7281
      4325 7279 4323 7270 4323 7269

$$

JPV

4 follow-up statements

524 
WGUS71 KALY 012228
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
628 PM EDT THU SEP 1 2011

VTC003-025-012315-
/O.CON.KALY.FF.W.0036.000000T0000Z-110901T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BENNINGTON VT-WINDHAM VT-
628 PM EDT THU SEP 1 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR NORTH
CENTRAL WINDHAM AND NORTHEASTERN BENNINGTON COUNTIES...

AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED 
AREA. RADAR ESTIMATES 3 TO 6 INCHES OF RAIN HAS FALLEN AROUND THE 
RAWSONVILLE AND WINHALL AREAS. THE RUNOFF FROM THE HEAVY RAIN WILL 
CONTINUE TO LEAD TO FLASH FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LONDONDERRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV

&&

LAT...LON 4308 7273 4312 7296 4328 7294 4327 7281
      4325 7279 4323 7270 4323 7269

$$

JPV

532 
WGUS51 KALY 012311
FFWALY
VTC003-025-020215-
/O.EXT.KALY.FF.W.0036.000000T0000Z-110902T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
711 PM EDT THU SEP 1 2011

THE NATIONAL WEATHER SERVICE IN ALBANY HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN BENNINGTON COUNTY IN SOUTHERN VERMONT...
  NORTH CENTRAL WINDHAM COUNTY IN SOUTHERN VERMONT...
  THIS INCLUDES THE CITY OF LONDONDERRY...

* UNTIL 1015 PM EDT

* AT 708 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THE STATIONARY THUNDERSTORM OVER THE WARNED AREA HAS STARTED TO    
  WEAKEN...HOWEVER RADAR ESTIMATES 5 TO 7 INCHES OF RAIN HAS FALLEN  
  IN AND AROUND THE RAWSONVILLE AND WINHALL AREAS. RAPID RUNOFF WILL 
  CONTINUE TO OCCUR...LEADING TO A CONTINUED THREAT OF FLASH         
  FLOODING. THERE HAVE ALREADY BEEN REPORTS OF FLASH FLOODING AT THE 
  INTERSECTION OF ROUTES 100 AND 30 IN RAWSONVILLE...AND             
  ALONG RIVER ROAD IN WINHALL.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHERWOOD
  FOREST...PERU TOWN CENTER...NORTH WINDHAM...NORTH LANDGROVE...
  LANDGROVE TOWN CENTER...BROMLEY VILLAGE AND PERU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

&&

LAT...LON 4308 7273 4312 7296 4328 7294 4327 7281
      4325 7279 4323 7270 4323 7269

$$

JPV

652 
WGUS71 KALY 012328
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
728 PM EDT THU SEP 1 2011

VTC003-025-020215-
/O.CON.KALY.FF.W.0036.000000T0000Z-110902T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BENNINGTON VT-WINDHAM VT-
728 PM EDT THU SEP 1 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR
NORTH CENTRAL WINDHAM AND NORTHEASTERN BENNINGTON COUNTIES...

AT 719 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED EVACUATIONS 
TAKING PLACE IN RAWSONVILLE DUE TO RAPIDLY RISING WATER ASSOCIATED 
WITH FLASH FLOODING.

THE JAMAICA AREA IS DOWNSTREAM OF WHERE THE HEAVY RAIN HAS FALLEN 
AND MAY BE IMPACTED BY FLOOD WATERS SHORTLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV

&&

LAT...LON 4308 7273 4312 7296 4328 7294 4327 7281
      4325 7279 4323 7270 4323 7269

$$

JPV

879 
WGUS71 KALY 020117
FFSALY

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
917 PM EDT THU SEP 1 2011

VTC003-025-020124-
/O.CAN.KALY.FF.W.0036.000000T0000Z-110902T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BENNINGTON VT-WINDHAM VT-
917 PM EDT THU SEP 1 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTH CENTRAL
WINDHAM AND NORTHEASTERN BENNINGTON COUNTIES...

LOCAL LAW ENFORCEMENT REPORTED THAT FLASH FLOODING HAS ENDED ACROSS 
THE AREA. HOWEVER...MANY STREAMS WILL REMAIN ELEVATED AND SOME ROADS 
MAY STILL BE FLOODED...SO PLEASE USE CAUTION IF DRIVING AROUND THIS 
AREA OVERNIGHT.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY EMAIL AT
ALB.STORMREPORT@NOAA.GOV OR ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV

LAT...LON 4308 7273 4312 7296 4328 7294 4327 7281
      4325 7279 4323 7270 4323 7269

$$

JPV

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 1, 4:46 PM EDT	Special Weather Statement	ALY	Windham	59 min

Nearby

Flash Flood Warnings in Vermont, 2011 Every 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.