Alert archive / Vermont / Flash Flood Warnings in 2011
Flash Flood Warning 19, NWS Burlington, VT
NWS Burlington, VT issued this flash flood warning at May 30, 2011, 1:00 AM EDT for 7 counties in Vermont. It was in force for 4 hr. 2 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 30, 2011, 1:00 AM EDT (05:00 UTC)
- Expired
- May 30, 2011, 5:25 AM EDT
- In force
- 4 hr
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
- Flood severity
- None
Counties Addison County, VT, Caledonia County, VT, Chittenden County, VT, Lamoille County, VT, Orange County, VT, Washington County, VT, Windsor County, VT
The radar
The Burlington radar (KCXX), 66 km from the middle of the area, began a volume at 04:59 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 |
|---|---|---|---|
| May 30, 2:00 AM EDT | FLASH FLOOD | 2 S Danville, VT | MULTIPLE ROADS WASHED OUT IN DANVILLE |
| May 30, 3:20 AM EDT | FLASH FLOOD | Montpelier, VT | POND IN HUBBARD PARK PARTIALLY ERODED IMPACTING SEVERAL HOUSES |
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, 5.0 hours before the alert went out and 180 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
- 843 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
474
WGUS51 KBTV 300500
FFWBTV
VTC001-005-007-015-017-023-027-301100-
/O.NEW.KBTV.FF.W.0019.110530T0500Z-110530T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
100 AM EDT MON MAY 30 2011
THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ADDISON COUNTY IN CENTRAL VERMONT
ORANGE COUNTY IN CENTRAL VERMONT
WASHINGTON COUNTY IN CENTRAL VERMONT
SOUTHERN CALEDONIA COUNTY IN NORTHEAST VERMONT
SOUTHERN CHITTENDEN COUNTY IN NORTHWEST VERMONT
SOUTHERN LAMOILLE COUNTY IN NORTHWEST VERMONT
NORTHWESTERN WINDSOR COUNTY IN SOUTHERN VERMONT
* UNTIL 700 AM EDT
* AT 1254 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
NUMEROUS SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL
ACROSS CENTRAL VERMONT. THESE THUNDERSTORMS HAVE THE POTENTIAL TO
CAUSE FLASH FLOODING...ESPECIALLY ACROSS THE HIGHER TERRAIN OF THE
GREEN MOUNTAINS.
* THIS FLASH FLOOD WARNING REPLACES THE AREAL FLOOD ADVISORY...WHICH
WAS IN EFFECT FOR CENTRAL VERMONT.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WORCESTER...WILLISTON...WATERBURY...WALDEN...STOWE...ST.
JOHNSBURY...RICHMOND...PLAINFIELD...PEACHAM...PASSUMPSIC...
MORETOWN...MONTPELIER...MARSHFIELD...HUNTINGTON...HINESBURG...
HANKSVILLE...DANVILLE...CALAIS...CABOT...BOLTON...BARNET...WEST
DANVILLE...WEST BOLTON...ST. GEORGE...RICKER STATE PARK...ELMORE...
EAST MONTPELIER...WATERBURY CENTER...MT. PHILO STATE PARK...
JONESVILLE...DUXBURY AND MIDDLESEX
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...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
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 4433 7198 4432 7202 4428 7206 4425 7204
4418 7205 4381 7221 4384 7276 4389 7300
4384 7330 4412 7335 4444 7315 4454 7273
4443 7194
$$3 follow-up statements
748
WGUS71 KBTV 300604
FFSBTV
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
204 AM EDT MON MAY 30 2011
VTC001-005-007-015-017-023-027-301100-
/O.CON.KBTV.FF.W.0019.000000T0000Z-110530T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINDSOR VT-CALEDONIA VT-LAMOILLE VT-ORANGE VT-WASHINGTON VT-
CHITTENDEN VT-ADDISON VT-
204 AM EDT MON MAY 30 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM EDT FOR
ADDISON...SOUTHERN CHITTENDEN...WASHINGTON...ORANGE...SOUTHERN
LAMOILLE...SOUTHERN CALEDONIA AND NORTHWESTERN WINDSOR COUNTIES...
AT 154 AM EDT...CLUSTERS OF THUNDERSTORMS CONTINUED TO PRODUCE VERY
HEAVY RAINFALL IN A SHORT PERIOD OF TIME ACROSS CENTRAL VERMONT. A
COOP OBSERVER REPORTED 0.98 FELL IN WORCESTER IN ONE HOUR. ALSO...A
TRAINED WEATHER SPOTTER REPORTED WATER IMPACTING PARKING LOTS AND
STREETS IN THE CITY OF BARRE.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WORCESTER...
WILLISTON...WATERBURY...WALDEN...WAITSFIELD...STOWE...ST.
JOHNSBURY...RICHMOND...PLAINFIELD...PEACHAM...PASSUMPSIC...
MORETOWN...MONTPELIER...MONKTON...MARSHFIELD...HUNTINGTON...
HINESBURG...HANKSVILLE...GROTON...FERRISBURG...DANVILLE...CALAIS...
CABOT...BOLTON...BARRE...BARNET...WEST DANVILLE...WEST BOLTON...ST.
GEORGE...RICKER STATE PARK...ELMORE...EAST MONTPELIER...FAYSTON...
BERLIN...WATERBURY CENTER...MT. PHILO STATE PARK...JONESVILLE...
DUXBURY AND MIDDLESEX
LAT...LON 4433 7198 4432 7202 4428 7206 4425 7204
4418 7205 4381 7221 4384 7276 4389 7300
4384 7330 4412 7335 4444 7315 4454 7273
4443 7194
$$707
WGUS71 KBTV 300731
FFSBTV
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
331 AM EDT MON MAY 30 2011
VTC001-005-007-015-017-023-027-301100-
/O.CON.KBTV.FF.W.0019.000000T0000Z-110530T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINDSOR VT-CALEDONIA VT-LAMOILLE VT-ORANGE VT-WASHINGTON VT-
CHITTENDEN VT-ADDISON VT-
331 AM EDT MON MAY 30 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM EDT FOR
ADDISON...SOUTHERN CHITTENDEN...WASHINGTON...ORANGE...SOUTHERN
LAMOILLE...SOUTHERN CALEDONIA AND NORTHWESTERN WINDSOR COUNTIES...
AT 320 AM EDT...MONTPELIER FIRE REPORTED PART OF A POND IN HUBBARD
PARK ERODED AND WAS IMPACTING SEVERAL HOUSES. IN ADDITION...DEBRIS
AND HIGH WATER WAS IMPACTING STATE STREET AND PARKWAY STREET IN THE
CITY OF MONTPELIER.
ANOTHER ROUND OF SHOWERS WITH EMBEDDED THUNDERSTORMS WILL IMPACT
SOUTHERN ADDISON AND ORANGE COUNTIES OVER THE NEXT SEVERAL
HOURS...BUT WILL STAY SOUTH OF THE MONTPELIER AND BARRE AREA.
ADDITIONAL FLASHING FLOODING COULD BE POSSIBLE OVER CENTRAL AND
SOUTHERN VERMONT THROUGH EARLY THIS MORNING.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WORCESTER...
WILLISTON...WATERBURY...WALDEN...WAITSFIELD...STOWE...ST.
JOHNSBURY...RICHMOND...PLAINFIELD...PEACHAM...PASSUMPSIC...
MORETOWN...MONTPELIER...MONKTON...MARSHFIELD...HUNTINGTON...
HINESBURG...HANKSVILLE...GROTON...FERRISBURG...DANVILLE...CALAIS...
CABOT...BOLTON...BARRE...BARNET...WEST DANVILLE...WEST BOLTON...ST.
GEORGE...RICKER STATE PARK...ELMORE...EAST MONTPELIER...FAYSTON...
BERLIN...WATERBURY CENTER...MT. PHILO STATE PARK...JONESVILLE...
DUXBURY AND MIDDLESEX
LAT...LON 4433 7198 4432 7202 4428 7206 4425 7204
4418 7205 4381 7221 4384 7276 4389 7300
4384 7330 4412 7335 4444 7315 4454 7273
4443 7194
$$435
WGUS71 KBTV 300925
FFSBTV
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
525 AM EDT MON MAY 30 2011
VTC001-005-007-015-017-023-027-300935-
/O.CAN.KBTV.FF.W.0019.000000T0000Z-110530T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINDSOR VT-CALEDONIA VT-LAMOILLE VT-ORANGE VT-WASHINGTON VT-
CHITTENDEN VT-ADDISON VT-
525 AM EDT MON MAY 30 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR ADDISON...SOUTHERN
CHITTENDEN...WASHINGTON...ORANGE...SOUTHERN LAMOILLE...SOUTHERN
CALEDONIA AND NORTHWESTERN WINDSOR COUNTIES...
THE THREAT FOR HEAVY RAIN AND FLASH FLOODING HAS ENDED.
LAT...LON 4433 7198 4432 7202 4428 7206 4425 7204
4418 7205 4381 7221 4384 7276 4389 7300
4384 7330 4412 7335 4444 7315 4454 7273
4443 7194
$$The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 10:04 PM EDT | Special Weather Statement | BTV | Chittenden | 56 min |
| May 29, 11:10 PM EDT | Special Weather Statement | BTV | Caledonia, Lamoille | 65 min |
| May 29, 11:11 PM EDT | Special Weather Statement | BTV | Orleans | 64 min |
| May 29, 11:40 PM EDT | Special Weather Statement | BTV | Orange | 50 min |
| May 30, 12:32 AM EDT | Special Weather Statement | BTV | Essex | 28 min |
| May 30, 12:39 AM EDT | Areal Flood Advisory | BTV | Addison, Caledonia, Chittenden, Lamoille, Orange, Rutland and 2 more | 22 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.