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Hydrograph River at a Glance Download
Mendenhall Lake at Suicide Basin Pool (ft)Observed: -0.14 ft at 4:00PM Jul 19, 2015Observed: -0.16 ft at 5:00PM Jul 19, 2015Observed: -0.08 ft at 6:00PM Jul 19, 2015Observed: -0.03 ft at 7:00PM Jul 19, 2015Observed: 0 ft at 8:00PM Jul 19, 2015Observed: -0.02 ft at 12:00AM Jul 20, 2015Observed: 0 ft at 1:00AM Jul 20, 2015Observed: -0.09 ft at 2:00AM Jul 20, 2015Observed: -0.14 ft at 3:00AM Jul 20, 2015Observed: -0.05 ft at 4:00AM Jul 20, 2015Observed: -0.1 ft at 5:00AM Jul 20, 2015Observed: -0.14 ft at 6:00AM Jul 20, 2015Observed: -0.21 ft at 7:00AM Jul 20, 2015Observed: -0.29 ft at 8:00AM Jul 20, 2015Observed: -0.12 ft at 9:00AM Jul 20, 2015Observed: -0.02 ft at 10:00AM Jul 20, 2015Observed: -0.07 ft at 11:00AM Jul 20, 2015Observed: -0.06 ft at 12:00PM Jul 20, 2015Observed: -0.21 ft at 1:00PM Jul 20, 2015Observed: -0.43 ft at 2:00PM Jul 20, 2015Observed: -0.22 ft at 3:00PM Jul 20, 2015Observed: -0.12 ft at 4:00PM Jul 20, 2015Observed: -0.01 ft at 5:00PM Jul 20, 2015Observed: 0.02 ft at 6:00PM Jul 20, 2015Observed: -0.01 ft at 7:00PM Jul 20, 2015Observed: 0.03 ft at 8:00PM Jul 20, 2015Observed: -0.08 ft at 12:00AM Jul 21, 2015Observed: -0.02 ft at 1:00AM Jul 21, 2015Observed: -0.07 ft at 2:00AM Jul 21, 2015Observed: -0.09 ft at 3:00AM Jul 21, 2015Observed: -0.06 ft at 4:00AM Jul 21, 2015Observed: -0.08 ft at 5:00AM Jul 21, 2015Observed: -0.1 ft at 6:00AM Jul 21, 2015Observed: -0.11 ft at 7:00AM Jul 21, 2015Observed: -0.08 ft at 8:00AM Jul 21, 2015Observed: -0.19 ft at 9:00AM Jul 21, 2015Observed: -0.89 ft at 10:00AM Jul 21, 2015Observed: -0.84 ft at 11:00AM Jul 21, 2015Observed: -1.01 ft at 12:00PM Jul 21, 2015Observed: -0.69 ft at 1:00PM Jul 21, 2015Observed: -0.18 ft at 2:00PM Jul 21, 2015Observed: 0.28 ft at 3:00PM Jul 21, 2015Highest Observation: 0.38 ft at 4:00PM Jul 21, 2015Observed: 0.04 ft at 5:00PM Jul 21, 2015Observed: -0.01 ft at 6:00PM Jul 21, 2015Observed: 0.01 ft at 7:00PM Jul 21, 2015Observed: 0.05 ft at 8:00PM Jul 21, 2015Observed: 0.01 ft at 12:00AM Jul 22, 2015Observed: -0.08 ft at 1:00AM Jul 22, 2015Observed: -0.05 ft at 2:00AM Jul 22, 2015Observed: -0.14 ft at 3:00AM Jul 22, 2015Observed: -0.06 ft at 4:00AM Jul 22, 2015Observed: -0.11 ft at 5:00AM Jul 22, 2015Observed: 0.02 ft at 6:00AM Jul 22, 2015Observed: -0.17 ft at 7:00AM Jul 22, 2015Observed: -0.1 ft at 8:00AM Jul 22, 2015Observed: -0.1 ft at 9:00AM Jul 22, 2015Observed: -0.27 ft at 10:00AM Jul 22, 2015Observed: -0.43 ft at 11:00AM Jul 22, 2015Observed: -0.21 ft at 12:00PM Jul 22, 2015Observed: -0.08 ft at 1:00PM Jul 22, 2015Observed: 0 ft at 2:00PM Jul 22, 2015Observed: -0.02 ft at 3:00PM Jul 22, 2015Observed: -0.15 ft at 4:00PM Jul 22, 2015Observed: -0.12 ft at 5:00PM Jul 22, 2015Observed: -0.08 ft at 6:00PM Jul 22, 2015Observed: 0.03 ft at 7:00PM Jul 22, 2015Observed: 0.09 ft at 8:00PM Jul 22, 2015Observed: -0.13 ft at 12:00AM Jul 23, 2015Observed: 0 ft at 1:00AM Jul 23, 2015Observed: -0.17 ft at 2:00AM Jul 23, 2015Observed: 0.01 ft at 3:00AM Jul 23, 2015Observed: -0.06 ft at 4:00AM Jul 23, 2015Observed: -0.2 ft at 5:00AM Jul 23, 2015Observed: -0.21 ft at 6:00AM Jul 23, 2015Observed: -0.08 ft at 7:00AM Jul 23, 2015Observed: -0.21 ft at 8:00AM Jul 23, 2015Observed: -0.14 ft at 9:00AM Jul 23, 2015Observed: -0.07 ft at 10:00AM Jul 23, 2015Observed: -0.16 ft at 11:00AM Jul 23, 2015Observed: -0.23 ft at 12:00PM Jul 23, 2015Observed: -0.11 ft at 1:00PM Jul 23, 2015Observed: -0.15 ft at 2:00PM Jul 23, 2015Observed: -0.09 ft at 3:00PM Jul 23, 2015Observed: -0.02 ft at 4:00PM Jul 23, 2015Observed: -0.08 ft at 5:00PM Jul 23, 2015Observed: 0.01 ft at 6:00PM Jul 23, 2015Observed: 0.01 ft at 7:00PM Jul 23, 2015Observed: 0.03 ft at 8:00PM Jul 23, 2015Observed: -0.11 ft at 12:00AM Jul 24, 2015Observed: 0.08 ft at 1:00AM Jul 24, 2015Observed: -0.1 ft at 2:00AM Jul 24, 2015Observed: -0.06 ft at 3:00AM Jul 24, 2015Observed: -0.09 ft at 4:00AM Jul 24, 2015Observed: -0.02 ft at 5:00AM Jul 24, 2015Observed: 0.03 ft at 6:00AM Jul 24, 2015Observed: -0.16 ft at 7:00AM Jul 24, 2015Observed: -0.2 ft at 8:00AM Jul 24, 2015Observed: -0.07 ft at 9:00AM Jul 24, 2015Observed: -0.16 ft at 10:00AM Jul 24, 2015Observed: -0.32 ft at 11:00AM Jul 24, 2015Observed: -0.39 ft at 12:00PM Jul 24, 2015Observed: -0.1 ft at 1:00PM Jul 24, 2015Observed: -0.15 ft at 2:00PM Jul 24, 2015Observed: -0.02 ft at 3:00PM Jul 24, 2015Observed: -0.02 ft at 4:00PM Jul 24, 2015Observed: -0.06 ft at 5:00PM Jul 24, 2015Observed: -0.07 ft at 6:00PM Jul 24, 2015Observed: -0.03 ft at 7:00PM Jul 24, 2015Observed: 0.03 ft at 8:00PM Jul 24, 2015Observed: 0.09 ft at 12:00AM Jul 25, 2015Observed: -0.01 ft at 1:00AM Jul 25, 2015Observed: -0.01 ft at 2:00AM Jul 25, 2015Observed: 0.01 ft at 3:00AM Jul 25, 2015Observed: -0.06 ft at 4:00AM Jul 25, 2015Observed: -0.18 ft at 5:00AM Jul 25, 2015Observed: -0.14 ft at 6:00AM Jul 25, 2015Observed: -0.17 ft at 7:00AM Jul 25, 2015Observed: -0.16 ft at 8:00AM Jul 25, 2015Observed: -0.2 ft at 9:00AM Jul 25, 2015Observed: -0.34 ft at 10:00AM Jul 25, 2015Observed: -0.28 ft at 11:00AM Jul 25, 2015Observed: -0.2 ft at 12:00PM Jul 25, 2015Observed: -0.02 ft at 1:00PM Jul 25, 2015Observed: 0.03 ft at 2:00PM Jul 25, 2015Observed: -0.09 ft at 3:00PM Jul 25, 2015Observed: -0.09 ft at 4:00PM Jul 25, 2015Observed: -0.06 ft at 5:00PM Jul 25, 2015Observed: -0.02 ft at 6:00PM Jul 25, 2015Observed: 0.1 ft at 7:00PM Jul 25, 2015Observed: 0.09 ft at 8:00PM Jul 25, 2015Observed: 0.06 ft at 12:00AM Jul 26, 2015Observed: -0.06 ft at 1:00AM Jul 26, 2015Observed: -0.07 ft at 2:00AM Jul 26, 2015Observed: -0.12 ft at 3:00AM Jul 26, 2015Observed: -0.15 ft at 4:00AM Jul 26, 2015Observed: 0 ft at 5:00AM Jul 26, 2015Observed: -0.17 ft at 6:00AM Jul 26, 2015Observed: -0.22 ft at 7:00AM Jul 26, 2015Observed: 0 ft at 8:00AM Jul 26, 2015Observed: -0.17 ft at 9:00AM Jul 26, 2015Observed: -0.19 ft at 10:00AM Jul 26, 2015Observed: -0.2 ft at 11:00AM Jul 26, 2015Observed: -0.08 ft at 12:00PM Jul 26, 2015Observed: -0.16 ft at 1:00PM Jul 26, 2015Observed: -0.1 ft at 2:00PM Jul 26, 2015Observed: -0.02 ft at 3:00PM Jul 26, 2015Observed: -0.07 ft at 4:00PM Jul 26, 2015Observed: -0.14 ft at 5:00PM Jul 26, 2015Observed: -0.17 ft at 6:00PM Jul 26, 2015Observed: 0.01 ft at 7:00PM Jul 26, 2015Observed: 0.03 ft at 8:00PM Jul 26, 2015Observed: -0.17 ft at 12:00AM Jul 27, 2015Observed: -0.18 ft at 1:00AM Jul 27, 2015Observed: -0.11 ft at 2:00AM Jul 27, 2015Observed: -0.08 ft at 3:00AM Jul 27, 2015Observed: -0.02 ft at 4:00AM Jul 27, 2015Observed: -0.15 ft at 5:00AM Jul 27, 2015Observed: -0.02 ft at 6:00AM Jul 27, 2015Observed: -0.11 ft at 7:00AM Jul 27, 2015Observed: -0.22 ft at 8:00AM Jul 27, 2015Observed: -0.15 ft at 9:00AM Jul 27, 2015Observed: -0.08 ft at 10:00AM Jul 27, 2015Observed: -0.16 ft at 11:00AM Jul 27, 2015Observed: -0.03 ft at 12:00PM Jul 27, 2015Observed: -0.17 ft at 1:00PM Jul 27, 2015Observed: -0.18 ft at 2:00PM Jul 27, 2015Observed: -0.11 ft at 3:00PM Jul 27, 2015Observed: -0.01 ft at 4:00PM Jul 27, 2015Observed: -0.06 ft at 5:00PM Jul 27, 2015Observed: -0.01 ft at 6:00PM Jul 27, 2015Observed: 0.02 ft at 7:00PM Jul 27, 2015Observed: -0.07 ft at 8:00PM Jul 27, 2015Observed: -0.06 ft at 12:00AM Jul 28, 2015Observed: -0.14 ft at 1:00AM Jul 28, 2015Observed: 0.03 ft at 2:00AM Jul 28, 2015Observed: -0.17 ft at 3:00AM Jul 28, 2015Observed: -0.11 ft at 4:00AM Jul 28, 2015Observed: -0.05 ft at 5:00AM Jul 28, 2015Observed: 0 ft at 6:00AM Jul 28, 2015Observed: -0.03 ft at 7:00AM Jul 28, 2015Observed: -0.17 ft at 8:00AM Jul 28, 2015Observed: 0.03 ft at 9:00AM Jul 28, 2015Observed: 0 ft at 10:00AM Jul 28, 2015Observed: -0.17 ft at 11:00AM Jul 28, 2015Observed: -0.06 ft at 6:00PM Jul 28, 2015Observed: -0.09 ft at 7:00PM Jul 28, 2015Observed: 0.08 ft at 8:00PM Jul 28, 2015Observed: -0.08 ft at 12:00AM Jul 29, 2015Observed: 0 ft at 1:00AM Jul 29, 2015Observed: -0.02 ft at 2:00AM Jul 29, 2015Observed: -0.1 ft at 3:00AM Jul 29, 2015Observed: -0.11 ft at 4:00AM Jul 29, 2015Observed: 0.01 ft at 5:00AM Jul 29, 2015Observed: -0.07 ft at 6:00AM Jul 29, 2015Observed: -0.07 ft at 7:00AM Jul 29, 2015Observed: -0.17 ft at 8:00AM Jul 29, 2015Observed: -0.09 ft at 9:00AM Jul 29, 2015Observed: -0.15 ft at 10:00AM Jul 29, 2015JSBA2(plotting HPIRZ) Graph Created (12:02PM Jul 29, 2015)ObservedLatest observed value: -0.15 ft at 10:00 AM AKDT 29-Jul-2015.
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About this graph
Tabular Data (UTC)
Tabular Data (AKDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge datum varies from year to year due to relocation of the gauge as ice within Suicide basin changes. Gauge values around zero indicate that the water level in Suicide Basin is below the elevation of the water level sensor.

NOTE: Forecasts are not available for the Mendenhall Lake at Suicide Basin. Only observed stages are available for this point.

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Downstream Gauge Downstream Gauge - at Lake Level
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 52
Low Stage (in feet): 0

Historic Crests
(1) 52.00 ft on 07/02/2012 (P)

(P): Preliminary values subject to further review.

Recent Crests
(1) 52.00 ft on 07/02/2012 (P)

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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
52 Estimated height of lake in Suicide Basin from July 2012. Produced bankfull conditions on the Mendenhall Lake and River.
Photos
(1) Full Suicide Basin, big cracks in center from water underneath pushes up the ice.
(2) Suicide Basin has emptied. Big cracks in center have closed and icebergs in back are grounded.
(3) Full Suicide Basin, big cracks in center and floating icebergs on right.
(4) Suicide Basin has emptied. Big cracks in center have closed and icebergs are grounded in back basin
(5) Suicide Basin has emptied. Icebergs in back of basin are grounded.
(6) Full Suicide Basin, big bulge in middle of the basin.
(7) Suicide Basin has emptied. Bulge in center of basin is gone and ice level has dropped.
About This Location Collapse

Latitude: 58.459444° N, Longitude: 134.503889° W, Horizontal Datum: Unknown

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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
Juneau Weather Forecast Office
8500 Mendenhall Loop Road
Juneau, AK 99801
(907) 790-6802
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Page last modified: 12-Feb-2015 9:32 PM
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