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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

Updated June 5, 2020 - USGS water-resources monitoring activities have been suspended at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)

Updated May 12, 2020 - USGS water-resources monitoring activities were suspended effective June 1, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)
USGS monitoring activities at these sites were funded by partner entities and USGS Cooperative Matching Funds (06088500). Lack of partner funding for these sites resulted in suspension of all USGS monitoring activities. Efforts are ongoing to secure funding for future monitoring. Historical data will continue to be available from USGS.
* IMPORTANT: Next Generation Station Page

USGS 12323720 Willow Creek at Opportunity, MT

PROVISIONAL DATA SUBJECT TO REVISION

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Flood Tracking - Stage Flood Tracking - Discharge Gage-height Corrections Base Rating Shifted Rating
(About shift-adjusted ratings).
Station operated by the USGS Wyoming-Montana Water Science Center in cooperation with U.S. Environmental Protection Agency .
Leaving USGS: U.S. Coast Guard boating safety tips.
This station managed by the Helena Field Unit.

Available Parameters Available Period
  
2003-04-02  2020-06-06
2020-02-07  2020-06-06
2017-03-29  2020-06-06







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second
Most recent instantaneous value: 27.0 06-06-2020   18:30 MDT
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Jun 6 based on 17 water years of record more
Min
(2013)		 25th
percen-
tile		 Most Recent
Instantaneous
Value Jun 6		 Median Mean 75th
percen-
tile		 Max
(2009)
10.3 25 27.0 36 38 46 74.5

Gage height, feet
Most recent instantaneous value: 4.30 06-06-2020   18:30 MDT
Graph of Gage height, feet

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
Most recent instantaneous value: 132 06-06-2020   18:30 MDT
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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