Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 12181090

Click to hide Water-Year Summary instructions and information
  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
Print this page
USGS Water-Year Summary 2023
12181090 SOUTH CASCADE MIDDLE TARN NEAR MARBLEMOUNT, WA
LOCATION - Lat 48°22'08", long 121°03'32" referenced to North American Datum of 1927, Skagit County, WA, Hydrologic Unit 17110005, on right bank of Middle Tarn outlet near the toe of the South Cascade Glacier.
DRAINAGE AREA - 1.72 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1993 to September 2002 published in USGS WRIR 94-4139, 95-462,96-4174, 97-4143, 98-4090, 99-4049, 02-04165, and USGS SIR 2004-5089. October 2002 to current year (fragmentary).
GAGE - Water-stage recorder. Elevation of the gage is 5345 ft. NGVD '29, from topo map.
REMARKS -

No regulation or diversion. (WY 2003) Records fair. (WY 2004) Records fair except those above 200 ft³/s, which are poor. (WY 2005) Records fair except those above 200 ft³/s, which are poor. (WY 2006) Records fair. (WY 2007) Records fair. (WY 2008) Records fair except for discharges that were likely ice affected, Nov. 20 to Jan. 24, Apr. 29 to May 14, which are poor. (WY 2009) Records fair except for estimated daily discharge, Jan. 7 to Apr. 21, which are poor. (WY 2010) Records fair. (WY 2011) Records fair except for period of possible ice affect, Nov. 16 to May 14, which is poor. (WY 2012) Records fair except for period of possible ice affect, Oct. 24 to May 24, which is poor.

  • Water Year 2013, 2015: Records fair except for estimated discharge and discharges above 100 ft³/s, which are poor.
  • Water Year 2014, 2016, 2018, 2019: Records fair except for discharges above 100 ft³/s, which are poor.
  • Water Year 2017: No record available
EXTREMES FOR PERIOD OF RECORD - (Beginning October 2002) Maximum discharge 550 ft³/s, Oct. 20, 2003, from rating curve extended above 100 ft³/s, gage height, 4.83 ft.