Yakima River Above Ahtanum Creek at Union Gap, WA - 12500450
Scale
Continuous data
Yakima River Above Ahtanum Creek at Union Gap, WA - 12500450
Subscribe to WaterAlert April 14, 2025 - April 21, 2025
Gage height, feet
42.22 ft - Apr 21, 2025 12:30:00 PM PDT
Important Data may be provisional
Value
Status
Time
Latest value
42.22 ft
Provisional
Apr 21, 2025
12:30:00 PM PDT
Selected
42.22 ft
Provisional
Apr 21, 2025
12:30:00 PM PDT
Statistics for April 21, 2025 based on 39 years of data
Gage height, ft
low (2001)
37.59 ft
25th percentile
39.49 ft
median
40.81 ft
75th percentile
41.76 ft
mean
40.69 ft
high (2016)
43.62 ft
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
7 data types available - data from 1987-10-01 to 2025-04-21
Continuous data are collected via automated sensors installed at a monitoring location.
Data type
Data date range
Gage height, feet
2007-10-01 - 2025-04-21
Discharge, cubic feet per second
1987-10-01 - 2025-04-21
Dissolved oxygen, water, unfiltered, milligrams per liter
2022-03-01 - 2023-10-31
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen
2022-03-01 - 2025-04-21
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
2022-03-01 - 2023-10-31
Temperature, water, degrees Celsius
2022-03-01 - 2023-10-31
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
2022-03-25 - 2023-10-31
Daily data
3 data types available - data from 1966-10-01 to 2025-04-20
Field measurements - Coming soon
0 data types available
Discrete sample data
467 Observed properties (data types) available - with data from 1975-03-14 to 2004-07-26
385 Sampling activities
Important information about this monitoring location
The datum of the gage has been determined to be 903.42 ft above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988, add 903.42 ft to gage height values.
Monitoring locations with continuous data in last 120 days
No locations found


Monitoring Location
- Active Monitoring Locations
5 km
3 mi
Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.
Interested in understanding how to access the upstream/downstream data? Learn about the Network-Linked Data Index (NLDI)