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Hydrograph River at a Glance Download
Missisquoi River at Swanton Stage (ft)Flow (kcfs)Observed: 2.21 ft at 11:00PM Mar 18, 2023Observed: 2.21 ft at 11:15PM Mar 18, 2023Observed: 2.21 ft at 11:30PM Mar 18, 2023Observed: 2.2 ft at 11:45PM Mar 18, 2023Observed: 2.21 ft at 12:00AM Mar 19, 2023Observed: 2.21 ft at 12:15AM Mar 19, 2023Observed: 2.21 ft at 12:30AM Mar 19, 2023Observed: 2.21 ft at 12:45AM Mar 19, 2023Observed: 2.2 ft at 1:00AM Mar 19, 2023Observed: 2.21 ft at 1:15AM Mar 19, 2023Observed: 2.2 ft at 1:30AM Mar 19, 2023Observed: 2.21 ft at 1:45AM Mar 19, 2023Observed: 2.19 ft at 2:00AM Mar 19, 2023Observed: 2.2 ft at 2:15AM Mar 19, 2023Observed: 2.2 ft at 2:30AM Mar 19, 2023Observed: 2.19 ft at 2:45AM Mar 19, 2023Observed: 2.19 ft at 3:00AM Mar 19, 2023Observed: 2.17 ft at 3:15AM Mar 19, 2023Observed: 2.19 ft at 3:30AM Mar 19, 2023Observed: 2.21 ft at 3:45AM Mar 19, 2023Observed: 2.21 ft at 4:00AM Mar 19, 2023Observed: 2.2 ft at 4:15AM Mar 19, 2023Observed: 2.2 ft at 4:30AM Mar 19, 2023Observed: 2.2 ft at 4:45AM Mar 19, 2023Observed: 2.2 ft at 5:00AM Mar 19, 2023Observed: 2.21 ft at 5:15AM Mar 19, 2023Observed: 2.21 ft at 5:30AM Mar 19, 2023Observed: 2.22 ft at 5:45AM Mar 19, 2023Observed: 2.22 ft at 6:00AM Mar 19, 2023Observed: 2.22 ft at 6:15AM Mar 19, 2023Observed: 2.23 ft at 6:30AM Mar 19, 2023Observed: 2.22 ft at 6:45AM Mar 19, 2023Observed: 2.22 ft at 7:00AM Mar 19, 2023Observed: 2.23 ft at 7:15AM Mar 19, 2023Observed: 2.22 ft at 7:30AM Mar 19, 2023Observed: 2.23 ft at 7:45AM Mar 19, 2023Observed: 2.21 ft at 8:00AM Mar 19, 2023Observed: 2.2 ft at 8:15AM Mar 19, 2023Observed: 2.2 ft at 8:30AM Mar 19, 2023Observed: 2.2 ft at 8:45AM Mar 19, 2023Observed: 2.19 ft at 9:00AM Mar 19, 2023Observed: 2.18 ft at 9:15AM Mar 19, 2023Observed: 2.19 ft at 9:30AM Mar 19, 2023Observed: 2.18 ft at 9:45AM Mar 19, 2023Observed: 2.18 ft at 10:00AM Mar 19, 2023Observed: 2.18 ft at 10:15AM Mar 19, 2023Observed: 2.17 ft at 10:30AM Mar 19, 2023Observed: 2.19 ft at 10:45AM Mar 19, 2023Observed: 2.15 ft at 11:00AM Mar 19, 2023Observed: 2.18 ft at 11:15AM Mar 19, 2023Observed: 2.17 ft at 11:30AM Mar 19, 2023Observed: 2.19 ft at 11:45AM Mar 19, 2023Observed: 2.17 ft at 12:00PM Mar 19, 2023Observed: 2.17 ft at 12:15PM Mar 19, 2023Observed: 2.17 ft at 12:30PM Mar 19, 2023Observed: 2.16 ft at 12:45PM Mar 19, 2023Observed: 2.18 ft at 1:00PM Mar 19, 2023Observed: 2.16 ft at 1:15PM Mar 19, 2023Observed: 2.15 ft at 1:30PM Mar 19, 2023Observed: 2.15 ft at 1:45PM Mar 19, 2023Observed: 2.12 ft at 2:00PM Mar 19, 2023Observed: 2.13 ft at 2:15PM Mar 19, 2023Observed: 2.14 ft at 2:30PM Mar 19, 2023Observed: 2.13 ft at 2:45PM Mar 19, 2023Observed: 2.11 ft at 3:00PM Mar 19, 2023Observed: 2.13 ft at 3:15PM Mar 19, 2023Observed: 2.11 ft at 3:30PM Mar 19, 2023Observed: 2.11 ft at 3:45PM Mar 19, 2023Observed: 2.09 ft at 4:00PM Mar 19, 2023Observed: 2.09 ft at 4:15PM Mar 19, 2023Observed: 2.08 ft at 4:30PM Mar 19, 2023Observed: 2.09 ft at 4:45PM Mar 19, 2023Observed: 2.08 ft at 5:00PM Mar 19, 2023Observed: 2.09 ft at 5:15PM Mar 19, 2023Observed: 2.08 ft at 5:30PM Mar 19, 2023Observed: 2.08 ft at 5:45PM Mar 19, 2023Observed: 2.08 ft at 6:00PM Mar 19, 2023Observed: 2.08 ft at 6:15PM Mar 19, 2023Observed: 2.08 ft at 6:30PM Mar 19, 2023Observed: 2.08 ft at 6:45PM Mar 19, 2023Observed: 2.07 ft at 7:00PM Mar 19, 2023Observed: 2.08 ft at 7:15PM Mar 19, 2023Observed: 2.07 ft at 7:30PM Mar 19, 2023Observed: 2.07 ft at 7:45PM Mar 19, 2023Observed: 2.07 ft at 8:00PM Mar 19, 2023Observed: 2.07 ft at 8:15PM Mar 19, 2023Observed: 2.07 ft at 8:30PM Mar 19, 2023Observed: 2.07 ft at 8:45PM Mar 19, 2023Observed: 2.08 ft at 9:00PM Mar 19, 2023Observed: 2.1 ft at 9:15PM Mar 19, 2023Observed: 2.11 ft at 9:30PM Mar 19, 2023Observed: 2.1 ft at 9:45PM Mar 19, 2023Observed: 2.1 ft at 10:00PM Mar 19, 2023Observed: 2.1 ft at 10:15PM Mar 19, 2023Observed: 2.1 ft at 10:30PM Mar 19, 2023Observed: 2.1 ft at 10:45PM Mar 19, 2023Observed: 2.11 ft at 11:00PM Mar 19, 2023Observed: 2.12 ft at 11:15PM Mar 19, 2023Observed: 2.11 ft at 11:30PM Mar 19, 2023Observed: 2.1 ft at 11:45PM Mar 19, 2023Observed: 2.1 ft at 12:00AM Mar 20, 2023Observed: 2.09 ft at 12:15AM Mar 20, 2023Observed: 2.07 ft at 12:30AM Mar 20, 2023Observed: 2.06 ft at 12:45AM Mar 20, 2023Observed: 2.05 ft at 1:00AM Mar 20, 2023Observed: 2.03 ft at 1:15AM Mar 20, 2023Observed: 2.01 ft at 1:30AM Mar 20, 2023Observed: 1.99 ft at 1:45AM Mar 20, 2023Observed: 1.98 ft at 2:00AM Mar 20, 2023Observed: 1.96 ft at 2:15AM Mar 20, 2023Observed: 1.95 ft at 2:30AM Mar 20, 2023Observed: 1.94 ft at 2:45AM Mar 20, 2023Observed: 1.93 ft at 3:00AM Mar 20, 2023Observed: 1.9 ft at 3:15AM Mar 20, 2023Observed: 1.85 ft at 3:30AM Mar 20, 2023Observed: 1.75 ft at 3:45AM Mar 20, 2023Observed: 1.67 ft at 4:00AM Mar 20, 2023Observed: 1.62 ft at 4:15AM Mar 20, 2023Observed: 1.59 ft at 4:30AM Mar 20, 2023Observed: 1.54 ft at 4:45AM Mar 20, 2023Observed: 1.51 ft at 5:00AM Mar 20, 2023Observed: 1.46 ft at 5:15AM Mar 20, 2023Observed: 1.43 ft at 5:30AM Mar 20, 2023Observed: 1.39 ft at 5:45AM Mar 20, 2023Observed: 1.37 ft at 6:00AM Mar 20, 2023Observed: 1.36 ft at 6:15AM Mar 20, 2023Observed: 1.33 ft at 6:30AM Mar 20, 2023Observed: 1.32 ft at 6:45AM Mar 20, 2023Observed: 1.31 ft at 7:00AM Mar 20, 2023Observed: 1.28 ft at 7:15AM Mar 20, 2023Observed: 1.27 ft at 7:30AM Mar 20, 2023Observed: 1.26 ft at 7:45AM Mar 20, 2023Observed: 1.24 ft at 8:00AM Mar 20, 2023Observed: 1.23 ft at 8:15AM Mar 20, 2023Observed: 1.22 ft at 8:30AM Mar 20, 2023Observed: 1.22 ft at 8:45AM Mar 20, 2023Observed: 1.37 ft at 10:00AM Mar 20, 2023Observed: 1.42 ft at 10:15AM Mar 20, 2023Observed: 1.45 ft at 10:30AM Mar 20, 2023Observed: 1.49 ft at 10:45AM Mar 20, 2023Observed: 1.51 ft at 11:00AM Mar 20, 2023Observed: 1.56 ft at 11:15AM Mar 20, 2023Observed: 1.63 ft at 11:30AM Mar 20, 2023Observed: 1.71 ft at 11:45AM Mar 20, 2023Observed: 1.77 ft at 12:00PM Mar 20, 2023Observed: 1.79 ft at 12:15PM Mar 20, 2023Observed: 1.83 ft at 12:30PM Mar 20, 2023Observed: 1.87 ft at 12:45PM Mar 20, 2023Observed: 1.93 ft at 1:00PM Mar 20, 2023Observed: 1.95 ft at 1:15PM Mar 20, 2023Observed: 1.97 ft at 1:30PM Mar 20, 2023Observed: 2 ft at 1:45PM Mar 20, 2023Observed: 2.03 ft at 2:00PM Mar 20, 2023Observed: 2.07 ft at 2:15PM Mar 20, 2023Observed: 2.09 ft at 2:30PM Mar 20, 2023Observed: 2.1 ft at 2:45PM Mar 20, 2023Observed: 2.14 ft at 3:00PM Mar 20, 2023Observed: 2.15 ft at 3:15PM Mar 20, 2023Observed: 2.19 ft at 3:30PM Mar 20, 2023Observed: 2.21 ft at 3:45PM Mar 20, 2023Observed: 2.22 ft at 4:00PM Mar 20, 2023Observed: 2.24 ft at 4:15PM Mar 20, 2023Observed: 2.25 ft at 4:30PM Mar 20, 2023Observed: 2.25 ft at 4:45PM Mar 20, 2023Highest Observation: 2.26 ft at 5:00PM Mar 20, 2023Highest Observation: 2.26 ft at 5:15PM Mar 20, 2023Observed: 2.24 ft at 5:30PM Mar 20, 2023Observed: 2.23 ft at 5:45PM Mar 20, 2023Observed: 2.22 ft at 6:00PM Mar 20, 2023Observed: 2.21 ft at 6:15PM Mar 20, 2023Observed: 2.2 ft at 6:30PM Mar 20, 2023Observed: 2.2 ft at 6:45PM Mar 20, 2023Observed: 2.19 ft at 7:00PM Mar 20, 2023Observed: 2.19 ft at 7:15PM Mar 20, 2023Observed: 2.19 ft at 7:30PM Mar 20, 2023Observed: 2.18 ft at 7:45PM Mar 20, 2023Observed: 2.18 ft at 8:00PM Mar 20, 2023Observed: 2.16 ft at 8:15PM Mar 20, 2023Observed: 2.17 ft at 8:30PM Mar 20, 2023Observed: 2.17 ft at 8:45PM Mar 20, 2023Observed: 2.16 ft at 9:00PM Mar 20, 2023Observed: 2.17 ft at 9:15PM Mar 20, 2023Observed: 2.17 ft at 9:30PM Mar 20, 2023Observed: 2.16 ft at 9:45PM Mar 20, 2023Observed: 2.17 ft at 10:00PM Mar 20, 2023Observed: 2.17 ft at 10:15PM Mar 20, 2023Observed: 2.17 ft at 10:30PM Mar 20, 2023Observed: 2.17 ft at 10:45PM Mar 20, 2023Observed: 2.17 ft at 11:00PM Mar 20, 2023Observed: 2.17 ft at 11:15PM Mar 20, 2023Observed: 2.16 ft at 11:30PM Mar 20, 2023Observed: 2.17 ft at 11:45PM Mar 20, 2023Observed: 2.16 ft at 12:00AM Mar 21, 2023Observed: 2.16 ft at 12:15AM Mar 21, 2023Observed: 2.16 ft at 12:30AM Mar 21, 2023Observed: 2.16 ft at 12:45AM Mar 21, 2023Observed: 2.16 ft at 1:00AM Mar 21, 2023Observed: 2.16 ft at 1:15AM Mar 21, 2023Observed: 2.16 ft at 1:30AM Mar 21, 2023Observed: 2.16 ft at 1:45AM Mar 21, 2023Observed: 2.16 ft at 2:00AM Mar 21, 2023Observed: 2.16 ft at 2:15AM Mar 21, 2023Observed: 2.16 ft at 2:30AM Mar 21, 2023Observed: 2.16 ft at 2:45AM Mar 21, 2023Observed: 2.15 ft at 3:00AM Mar 21, 2023Observed: 2.15 ft at 3:15AM Mar 21, 2023Observed: 2.16 ft at 3:30AM Mar 21, 2023Observed: 2.16 ft at 3:45AM Mar 21, 2023Observed: 2.15 ft at 4:00AM Mar 21, 2023Observed: 2.15 ft at 4:15AM Mar 21, 2023Observed: 2.14 ft at 4:30AM Mar 21, 2023Observed: 2.12 ft at 4:45AM Mar 21, 2023Observed: 2.09 ft at 5:00AM Mar 21, 2023Observed: 2.07 ft at 5:15AM Mar 21, 2023Observed: 2.05 ft at 5:30AM Mar 21, 2023Observed: 2.04 ft at 5:45AM Mar 21, 2023Observed: 2.02 ft at 6:00AM Mar 21, 2023Observed: 2.01 ft at 6:15AM Mar 21, 2023Observed: 2 ft at 6:30AM Mar 21, 2023Observed: 1.99 ft at 6:45AM Mar 21, 2023Observed: 1.98 ft at 7:00AM Mar 21, 2023Observed: 1.97 ft at 7:15AM Mar 21, 2023Observed: 1.96 ft at 7:30AM Mar 21, 2023Observed: 1.95 ft at 7:45AM Mar 21, 2023Observed: 1.94 ft at 8:00AM Mar 21, 2023Observed: 1.94 ft at 8:15AM Mar 21, 2023Observed: 1.93 ft at 8:30AM Mar 21, 2023Observed: 1.92 ft at 8:45AM Mar 21, 2023Observed: 1.91 ft at 9:00AM Mar 21, 2023Observed: 1.91 ft at 9:15AM Mar 21, 2023Observed: 1.9 ft at 9:30AM Mar 21, 2023Observed: 1.9 ft at 9:45AM Mar 21, 2023Observed: 1.89 ft at 10:00AM Mar 21, 2023Observed: 1.89 ft at 10:15AM Mar 21, 2023Observed: 1.89 ft at 10:30AM Mar 21, 2023Observed: 1.88 ft at 10:45AM Mar 21, 2023Observed: 1.88 ft at 11:00AM Mar 21, 2023Observed: 1.88 ft at 11:15AM Mar 21, 2023Observed: 1.88 ft at 11:30AM Mar 21, 2023Observed: 1.88 ft at 11:45AM Mar 21, 2023Observed: 1.88 ft at 12:00PM Mar 21, 2023Observed: 1.88 ft at 12:15PM Mar 21, 2023Observed: 1.88 ft at 12:30PM Mar 21, 2023Observed: 1.88 ft at 12:45PM Mar 21, 2023Observed: 1.88 ft at 1:00PM Mar 21, 2023Observed: 1.88 ft at 1:15PM Mar 21, 2023Observed: 1.89 ft at 1:30PM Mar 21, 2023Observed: 1.89 ft at 1:45PM Mar 21, 2023Observed: 1.89 ft at 2:00PM Mar 21, 2023Observed: 1.89 ft at 2:15PM Mar 21, 2023Observed: 1.88 ft at 2:30PM Mar 21, 2023Observed: 1.88 ft at 2:45PM Mar 21, 2023Observed: 1.87 ft at 3:00PM Mar 21, 2023Observed: 1.86 ft at 3:15PM Mar 21, 2023Observed: 1.87 ft at 3:30PM Mar 21, 2023Observed: 1.87 ft at 3:45PM Mar 21, 2023Observed: 1.86 ft at 4:00PM Mar 21, 2023Observed: 1.86 ft at 4:15PM Mar 21, 2023Observed: 1.86 ft at 4:30PM Mar 21, 2023Observed: 1.86 ft at 4:45PM Mar 21, 2023Observed: 1.86 ft at 5:00PM Mar 21, 2023Observed: 1.85 ft at 5:15PM Mar 21, 2023Observed: 1.85 ft at 5:30PM Mar 21, 2023Observed: 1.86 ft at 5:45PM Mar 21, 2023Observed: 1.85 ft at 6:00PM Mar 21, 2023Observed: 1.85 ft at 6:15PM Mar 21, 2023Observed: 1.86 ft at 6:30PM Mar 21, 2023Observed: 1.86 ft at 6:45PM Mar 21, 2023Observed: 1.86 ft at 7:00PM Mar 21, 2023Observed: 1.85 ft at 7:15PM Mar 21, 2023Observed: 1.86 ft at 7:30PM Mar 21, 2023Observed: 1.86 ft at 7:45PM Mar 21, 2023Observed: 1.86 ft at 8:00PM Mar 21, 2023Observed: 1.86 ft at 8:15PM Mar 21, 2023Observed: 1.86 ft at 8:30PM Mar 21, 2023Observed: 1.86 ft at 8:45PM Mar 21, 2023Observed: 1.86 ft at 9:00PM Mar 21, 2023Observed: 1.86 ft at 9:15PM Mar 21, 2023Observed: 1.86 ft at 9:30PM Mar 21, 2023Observed: 1.86 ft at 9:45PM Mar 21, 2023Forecast: 1.6 ft 2:00AM Mar 22, 2023Forecast: 1.7 ft 8:00AM Mar 22, 2023Forecast: 1.7 ft 2:00PM Mar 22, 2023Forecast: 1.7 ft 8:00PM Mar 22, 2023Forecast: 1.7 ft 2:00AM Mar 23, 2023Forecast: 1.8 ft 8:00AM Mar 23, 2023Forecast: 2 ft 2:00PM Mar 23, 2023Forecast: 2.4 ft 8:00PM Mar 23, 2023Forecast: 2.8 ft 2:00AM Mar 24, 2023Highest Forecast: 3.1 ft 8:00AM Mar 24, 2023USGS--Water Resources of the United StatesSWAV1(plotting HGIRG) Graph Created (10:46PM Mar 21, 2023)ObservedForecast (issued 11:19AM Mar 21)Latest observed value: 1.86 ft at 9:45 PM EDT 21-Mar-2023. Flood Stage is 8 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.

NOTE: Forecasts for the Missisquoi River at Swanton are issued routinely year-round.

Return to Area Map
Upstream Gauge - at East Berkshire Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 9
Flood Stage: 8
Action Stage: 6
Low Stage (in feet): -9999

Historic Crests
(1) 13.14 ft on 01/14/2018
(2) 9.50 ft on 01/20/1996
(3) 9.49 ft on 11/02/2019
(4) 8.64 ft on 01/09/1998
(5) 8.46 ft on 06/12/2002
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.49 ft on 11/02/2019
(2) 13.14 ft on 01/14/2018
(3) 7.99 ft on 04/16/2014
(4) 7.51 ft on 04/29/2011
(5) 5.17 ft on 04/12/2008
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.75 ft on 08/10/2016
Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
9 Water will cover Foundry Street and Marble Mill Park in Swanton Village. Downstream in West Swanton, Route 78 will be covered, and residences along the river will flood. Access roads and boat landings in the Missisquoi Wildlife Management area will be inundated. Upstream of Swanton, water will cover Waugh Farm Road. Further usptream near East Highgate, water will approach Route 78.
8 Water will cover Foundry Street in Swanton Village, and enter Marble Mill Park. Water will cover one lane of Route 78 downstream in West Swanton, and surround seasonal camps and enter the back yards of homes along Route 78. In the Missisquoi Wildlife Management area, Louies Landing will flood along with local access roads. Upstream of Swanton, Waugh Farm Road will become inundated. There will be widespread lowland and field flooding.
Photos
(1) Gage house front view
(2) Additional instrumentation
(3) Looking downstream from gage house
(4) Looking upstream from gage house
About This Location Collapse

Latitude: 44.916667° N, Longitude: 73.128889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 105 ft 113 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Burlington Weather Forecast Office
1200 Airport Drive
South Burlington, VT 05403
(802) 862-2475
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