HETCH HETCHY

Map of surrounding area

Station IDHTHElevation3870' ft
River BasinTUOLUMNE RCountyTUOLUMNE
Hydrologic AreaSAN JOAQUIN RIVERNearby CityYOSEMITE
Latitude37.950000°NLongitude-119.783000°W
OperatorHetch Hetchy Water and PowerData Collection

Additional types of information available:   Dam Information | Precipitation Averages | Reservoir Information


The following data types are available online. Select one of the links below to retrieve recent data.

Sensor DescriptionDurationPlotData CollectionData Available
PRECIPITATION, ACCUMULATED, inches (daily) (RAIN)COMPUTED 10/01/2012 to present.
PRECIPITATION, INCREMENTAL, inches (daily) (PPT INC)DATA XCHG-USACE SAC 01/08/1985 to present.
PRECIPITATION, INCRMNT 4A-4A, inches (daily) (PPTINC4)DATA XCHG-NWS 10/01/2012 to present.
RESERVOIR ELEVATION, feet (daily) (RES ELE)MANUAL ENTRY 01/08/1985 to present.
RESERVOIR INFLOW, cfs (daily) (INFLOW)MANUAL ENTRY 01/17/1994 to present.
RESERVOIR OUTFLOW, cfs (daily) (OUTFLOW)DATA XCHG-USACE SAC 10/03/1993 to present.
RESERVOIR STORAGE, af (daily) (STORAGE)DATA XCHG-USACE SAC 01/08/1985 to present.
RESERVOIR, STORAGE CHANGE, af (daily) (RES CHG)COMPUTED 10/04/1993 to present.
RESERVOIR ELEVATION, feet (event) (RES ELE)SATELLITE 05/05/1997 to 04/07/1998.
PRECIPITATION, ACCUMULATED, inches (monthly) (RAIN)MANUAL ENTRY 10/01/1910 to present.
RESERVOIR STORAGE, af (monthly) (STORAGE)MANUAL ENTRY 10/01/1951 to present.