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Hydrograph River at a Glance Download
Big Thompson River (CO) above Lake Estes Inflow Discharge (cfs)Forecast: 676 cfs 12:00AM Jun 25, 2019Forecast: 723 cfs 6:00AM Jun 25, 2019Forecast: 714 cfs 12:00PM Jun 25, 2019Forecast: 691 cfs 6:00PM Jun 25, 2019Forecast: 686 cfs 12:00AM Jun 26, 2019Forecast: 687 cfs 6:00AM Jun 26, 2019Forecast: 673 cfs 12:00PM Jun 26, 2019Forecast: 666 cfs 6:00PM Jun 26, 2019Forecast: 683 cfs 12:00AM Jun 27, 2019Forecast: 699 cfs 6:00AM Jun 27, 2019Forecast: 698 cfs 12:00PM Jun 27, 2019Forecast: 700 cfs 6:00PM Jun 27, 2019Forecast: 719 cfs 12:00AM Jun 28, 2019Forecast: 733 cfs 6:00AM Jun 28, 2019Forecast: 727 cfs 12:00PM Jun 28, 2019Forecast: 727 cfs 6:00PM Jun 28, 2019Forecast: 749 cfs 12:00AM Jun 29, 2019Highest Forecast: 760 cfs 6:00AM Jun 29, 2019ESSC2(plotting QIIRZ) Graph Created (10:30PM Jun 24, 2019)Forecast (issued 9:26AM Jun 24)
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
NOTE: Forecasts for the Big Thompson River (CO) above Lake Estes are issued routinely year-round.
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Downstream Gauge Downstream Gauge - at above the Canyon Mouth at Cedar Cove
Flood Categories (in KCFS)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
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Gauge LocationGauge Map Marker
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.
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Latitude: 40.375556° N, Longitude: 105.487778° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS flow Not Available Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 7492 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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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
Denver/Boulder Weather Forecast Office
325 Broadway
Boulder, CO 80305-3328
(303) 494-4221
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Page last modified: 1-Mar-2019 12:33 AM
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