Tropical Storm Irene moved across southeast New York and southwest New England during the morning hours of August 28th and then proceeded to track north along the Connecticut River Valley in Vermont during the afternoon and evening.
Strong to damaging winds in excess of 60 mph was observed within several miles of Lake Champlain in northwest Vermont as well as exposed higher terrain in southern Vermont and wind gusts approaching 50 mph downed trees elsewhere in Vermont during the afternoon hours. A peak wind gust of 85 mph was measured at the summit of Mount Mansfield (4400 ft - Lamoille county). Approximately 100,000 customers were without power during the storm.
The main, devastating impact from Irene was widespread, devastating flooding, especially for central and southern Vermont. Widespread rainfall amounts of 3-5 inches occurred across Vermont with 5 to 7+ inches across much of southern, central Vermont and elevations above 1000 feet along the spine of Vermont's Green Mountains and the Worcester range.
Devastating flash flooding occurred across much of central and southern Vermont mountain valleys with substantial and some record breaking flood stages on larger rivers.
This flood event will likely rank second to the November 1927 flood in the scope of meteorological and hydrological conditions/impacts as well as loss of life (84 in 1927), but likely first in monetary damage ((approx $500. million statewide vs $350. million (1927 in 2010 dollars)). There were nearly 2400 roads, 800 homes/businesses, 300 bridges and a half dozen railroad tracks destroyed or damaged from the flooding caused by Irene.

Flash Flood in WINDSOR, VERMONT
From 28-AUG-11 10:30:00 to 28-AUG-11 17:00:00 (EST-5)
Location: GOULDS MILL
Flood cause: Heavy Rain / Tropical System
Property damage: 100.00M
Crop damage: 5.00M
Reported by: Emergency Manager

Devastating flash flooding as a result of 4 to 7+ inches of rainfall occurred across all of Windsor county, especially in the foothills of the Green Mountains such as Rochester, Ludlow, Stockbridge, Barnard, Woodstock, Plymouth, Cavendish. Several dozens roads (state and local), including Routes 4, 12, 12A, 100, 103, 107 and 131, as well as several bridges were washed out or suffered severe damage. Several communities between Rutland and Windsor and within Windsor county were isolated due to loss infrastructure. Dozens of homes and businesses experienced severe flooding as well as major losses to farms and livestock.

Flash Flood in ORANGE, VERMONT
From 28-AUG-11 15:00:00 to 28-AUG-11 19:00:00 (EST-5)
Location: RANDOLPH
Flood cause: Heavy Rain / Tropical System
Property damage: 32.50M
Crop damage: 1.50M
Reported by: Emergency Manager

Severe flash flooding occurred across portions of Orange county, especially southern and western sections along the foothills of the Green Mountains. Communities such as Braintree, Randolph, Brookfield, Williamstown, Chelsea, Tunbridge and Strafford suffered signficant damage to roads and bridges (state and local), including Routes 12, 12A, 14, 110 and 113. Several homes and businesses as well as farms suffered tremendous losses to crops and livestock.

Flood in CHITTENDEN, VERMONT
From 28-AUG-11 20:00:00 to 30-AUG-11 06:00:00 (EST-5)
Location: HUNTINGTON
Flood cause: Heavy Rain
Property damage: 3.00M
Crop damage: 1.00M
Reported by: River/Stream Gage

Flooding from Tropical Storm Irene caused extensive flooding across Chittenden County in the Winooski River Valley and other rivers such as the Browns River. Along the Winooski...homes and businesses were flooded in Richmond, and hundreds of acres of farmland were inundated. Routes 2 and 117 were inundated and impassable from Williston and Essex upstream through Richmond to Jonesville.

Flood in RUTLAND, VERMONT
From 28-AUG-11 12:20:00 to 31-AUG-11 04:48:00 (EST-5)
Location: MT TABOR
Flood cause: Heavy Rain
Property damage: 5.00M
Crop damage: 1.00M
Reported by: River/Stream Gage

Heavy rainfall from Tropical Storm Irene caused devastating flooding along Otter Creek and its tributaries. Homes, businesses, and roads were flooded from Wallingford downstream through Rutland, Proctor, Pittsford, and Brandon. Otter Creek at Center Rutland crested at a new record of 17.21 feet, besting the previous record by almost four feet.

Flash Flood in CHITTENDEN, VERMONT
From 28-AUG-11 16:00:00 to 28-AUG-11 19:00:00 (EST-5)
Location: SOUTH HINESBURG
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 1.00M
Reported by: Emergency Manager

Several areas of flash flooding occurred across eastern Chittenden county, especially in the foothills of the western slopes of the Green Mountains in communities such as Bolton, Hineburg, Huntington, Jonesville, Richmond, Westford, Jericho, Underhill, Essex and Williston. Several roads witnessed partial or full washouts. Several homes and businesses experienced flooding and many farmlands loss there late summer harvest due to flooding.

Flash Flood in WASHINGTON, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 19:00:00 (EST-5)
Location: WATERBURY ARPT
Flood cause: Heavy Rain / Tropical System
Property damage: 60.00M
Crop damage: 2.50M
Reported by: Emergency Manager

Severe todevastating flash flooding occurred across much of Washington county, especially in the foothills of the Green Mountains. Communities such as Roxbury, Warren, Waitsfield, Fayston, Moretown, Montpelier, Barre, Berlin, Northfield suffered major damage to roads and bridges (state and local), including Routes 12, 12A, 14, 17, 62, and 100. Several communities were isolated due to loss infrastructure. Several homes and businesses as well as farms suffered tremendous losses to crops and livestock.

Strong Wind in EASTERN CHITTENDEN, VERMONT
From 28-AUG-11 15:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts of 45 to 55 mph, especially exposed higher terrain, along with saturated soils caused numerous damaged or uprooted trees along the western slopes of the Green Mountains.

Flood in WINDSOR, VERMONT
From 28-AUG-11 16:00:00 to 29-AUG-11 06:00:00 (EST-5)
Location: POMPANOOSUC
Flood cause: Heavy Rain
Property damage: 20.00M
Crop damage: 2.50M
Reported by: River/Stream Gage

Heavy rainfall from Tropical Storm Irene caused devastating flooding along the White and Ottauquechee River and their tributaries. Homes, businesses, and roads were flooded throughout Windsor county. The White River at West Hartford crested at 28.40 feet, about a foot below the record crest of 29.30 feet set in the great flood of 1927.

Flood in ORANGE, VERMONT
From 28-AUG-11 18:00:00 to 29-AUG-11 06:00:00 (EST-5)
Location: WELLS RIVER
Flood cause: Heavy Rain
Property damage: 5.00M
Crop damage: 1.00M
Reported by: Public

Heavy rainfall from Tropical Storm Irene caused flooding countywide in Orange County VT. Flooding along Wells River was extensive, isolating Wells River Village VT. Flooding along the Waits River caused widespread flooding through Corinth VT and downstream to Bradford VT.

Strong Wind in EASTERN ADDISON, VERMONT
From 28-AUG-11 15:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts of 45 to 55 mph, especially exposed higher terrain, along with saturated soils caused numerous damaged or uprooted trees along the western slopes of the Green Mountains.

Strong Wind in ESSEX, VERMONT
From 28-AUG-11 16:00:00 to 28-AUG-11 20:00:00 (EST-5)
Magnitude: 39.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts over 40 mph across exposed higher terrain, along with saturated soils caused scattered damage or uprooted trees.

High Wind in WESTERN ADDISON, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 18:00:00 (EST-5)
Magnitude: 50.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Mesonet

Strong to damaging north winds of 25 to 35 mph sustained with estimated gusts near 60 mph along the lakeshore. Estimated wave heights of 4 to 6 feet and possibly higher damaged boats, moorings and knocked down or uprooted numerous trees with thousands of customers without power.

Flash Flood in ADDISON, VERMONT
From 28-AUG-11 14:30:00 to 28-AUG-11 19:00:00 (EST-5)
Location: FERRISBURG
Flood cause: Heavy Rain / Tropical System
Property damage: 20.00M
Crop damage: 1.00M
Reported by: Emergency Manager

Several areas of flash flooding occurred across Addison county, east of Route 7 and especially in the foothills of the western slopes of the Green Mountains in communities such as Lincoln, Ripton, Hancock, Granville, Bristol, East Middlebury, New Haven, Monkton, Salisbury and Leicester. Dozens of roads (state/local) witnessed partial or full washouts, including Routes 7, 17, 116 and 125. Several homes and businesses experienced flooding and many farmlands loss there late summer harvest due to flooding.

Flood in CALEDONIA, VERMONT
From 28-AUG-11 18:00:00 to 29-AUG-11 13:00:00 (EST-5)
Location: EAST BURKE
Flood cause: Heavy Rain
Property damage: 4.00M
Crop damage: 1.00M
Reported by: River/Stream Gage

Flooding from Tropical Storm Irene was widespread across Caledonia County. The Passumpsic River flooded portions of route 5 from Lyndonville downstream through St. Johnsbury Center, forcing evacuations of homes and businesses along Main Street in Lyndonville. Upper reaches of the Wells River flooded portions of route 302 in Groton and South Ryegate.

Strong Wind in EASTERN FRANKLIN, VERMONT
From 28-AUG-11 16:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts of 45 to 55 mph, especially exposed higher terrain, along with saturated soils caused numerous damaged or uprooted trees along the western slopes of the Green Mountains.

Strong Wind in LAMOILLE, VERMONT
From 28-AUG-11 15:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts of 40 to 50 mph with peak at 55 mph across exposed higher terrain, along with saturated soils caused widespread downed and uprooted trees. A wind gust of 85 mph was measured at the summit of Mount Mansfield (4400 ft).

Flash Flood in RUTLAND, VERMONT
From 28-AUG-11 10:30:00 to 28-AUG-11 17:00:00 (EST-5)
Location: BENSON
Flood cause: Heavy Rain / Tropical System
Property damage: 50.00M
Crop damage: 1.50M
Reported by: Emergency Manager

Devastating flash flooding occurred across much of Rutland county, mainly along and east of Route 7 and especially in the foothills of the western slopes of the Green Mountains, such as Rutland, Killington, Mendon, Wallingford, Brandon, Chittenden and Pittsford. Dozens of roads (state and local), including Routes 4, 7, 103 and 155, as well as several bridges were washed out or suffered severe damage. Several communities between Rutland and Windsor counties were isolated due to loss infrastructure. Dozens of homes and businesses experienced severe flooding and two fatalities occurred in Rutland-Mendon vicinity.

Flood in WASHINGTON, VERMONT
From 28-AUG-11 17:00:00 to 29-AUG-11 06:00:00 (EST-5)
Location: CABOT
Flood cause: Heavy Rain
Property damage: 15.00M
Crop damage: 2.50M
Reported by: River/Stream Gage

Flooding from Tropical Storm Irene caused extensive flooding across Washington County VT. The Winooski River was the primary river in flood in Washington County, cresting at 19.05 feet in Montpelier at 21:15 EST August 28, the second highest crest on record. Flooding was extensive in downtown Montpelier. Downstream in Waterbury, the Winooski flooded the Waterbury State Office Complex and portions of downtown Waterbury. Many offices of state agencies were inundated, and active operations at the Vermont state mental hospital and Vermont Emergency Management Emergency Operations Center were forced to relocate during the flood.

Flood in LAMOILLE, VERMONT
From 28-AUG-11 20:00:00 to 30-AUG-11 02:30:00 (EST-5)
Location: MOSCOW
Flood cause: Heavy Rain
Property damage: 2.50M
Crop damage: 1.00M
Reported by: River/Stream Gage

Flooding from Tropical Storm Irene was widespread across Lamoille County. Most of the flooding was along the Lamoille River, which crested at 16.54 feet at Johnson Vermont at 5:30 am EST August 29, and at 453.76 feet at 2:00 pm EST August 29 in Jeffersonville Vt. Sections of Route 15 were flooded and closed to traffic, and businesses in Johnson were inundated by floodwaters.

Strong Wind in ORANGE, VERMONT
From 28-AUG-11 15:00:00 to 28-AUG-11 18:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Frequent wind gusts of 35 to 50 mph, especially across exposed higher terrain, along with saturated soils caused widespread downed and uprooted trees.

Strong Wind in CALEDONIA, VERMONT
From 28-AUG-11 16:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts of 45 to 50 mph, especially exposed higher terrain, along with saturated soils caused numerous damaged or uprooted trees throughout the county.

Flood in ESSEX, VERMONT
From 28-AUG-11 18:00:00 to 29-AUG-11 01:00:00 (EST-5)
Location: CANAAN
Flood cause: Heavy Rain
Property damage: 300.00K
Crop damage: 200.00K
Reported by: Public

Heavy rainfall from Tropical Storm Irene caused flooding across Essex County VT. Creeks and streams were overwhelmed.

Strong Wind in ORLEANS, VERMONT
From 28-AUG-11 16:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 39.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Frequent wind gusts of 35 to 45 mph, especially across exposed higher terrain, along with saturated soils caused widespread downed and uprooted trees.

Flood in ORLEANS, VERMONT
From 28-AUG-11 18:00:00 to 30-AUG-11 09:30:00 (EST-5)
Location: JAY
Flood cause: Heavy Rain
Property damage: 500.00M
Crop damage: 250.00K
Reported by: River/Stream Gage

Heavy rain from Tropical Storm Irene inundated roads in Orleans County Vermont. The Barton River flooded river road near Orleans, and the Barton River at Coventry crested at 10.27 feet at 04:00 am EST Aug 29, over two feet above flood stage of 8.0 feet. Other local roads near Troy were flooded by the Missisquoi river, and the Missisquoi at North Troy crested at 13.94 feet at 02:30 am EST Aug 29, almost five feet over flood stage of 9.0 feet.

Strong Wind in WASHINGTON, VERMONT
From 28-AUG-11 16:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Frequent wind gusts of 35 to 50 mph, especially across exposed higher terrain, along with saturated soils caused widespread downed and uprooted trees.

Strong Wind in WESTERN RUTLAND, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 18:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: COOP Observer

Frequent wind gusts of 40 to 50 mph or higher, especially exposed higher terrain, along with saturated soils caused numerous damaged or uprooted trees along the western slopes of the Green Mountains.

Flood in FRANKLIN, VERMONT
From 28-AUG-11 20:00:00 to 29-AUG-11 23:30:00 (EST-5)
Location: RICHFORD
Flood cause: Heavy Rain
Property damage: 500.00M
Crop damage: 500.00K
Reported by: River/Stream Gage

Heavy rainfall from Tropical Storm Irene caused flooding across Franklin County VT. Along the Missisquoi River and its tributaries, floodwaters inundated and forced the closures of routes 105, 118, and 108. The Missisquoi River at East Berkshire crested at 14.13 feet at 1:00 am EST August 29. Flood stage is 13.0 feet.

Strong Wind in WINDSOR, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 18:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Frequent wind gusts of 40 to 55 mph, especially across exposed higher terrain, along with saturated soils caused widespread downed and uprooted trees.

High Wind in GRAND ISLE, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 56.00 EG
Property damage: 750.00K
Crop damage: 250.00K
Reported by: Emergency Manager

Strong to damaging north winds of 35 to 45 mph sustained with estimated gusts in excess of 60 mph buffeted Grand Isle county and Lake Champlain. Estimated wave heights of 4 to 6 feet and possibly higher damaged boats, moorings and knocked down or uprooted numerous trees with thousands of customers without power.

High Wind in WESTERN CHITTENDEN, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: ASOS

Strong to damaging north winds of 25 to 35 mph sustained with estimated gusts in excess of 60 mph along the lakeshore. Estimated wave heights of 4 to 6 feet and possibly higher damaged boats, moorings and knocked down or uprooted numerous trees with thousands of customers without power. BTV ASOS (some 5 miles inland) measured a 51 mph wind gust.

High Wind in WESTERN FRANKLIN, VERMONT
From 28-AUG-11 14:00:00 to 28-AUG-11 19:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: ASOS

Strong to damaging north winds of 25 to 35 mph sustained with estimated gusts in excess of 60 mph along the lakeshore. Estimated wave heights of 4 to 6 feet and possibly higher damaged boats, moorings and knocked down or uprooted numerous trees with thousands of customers without power.