Boulder River at Big Timber
Winter Weather Advisory
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Upstream gauge unavailableDownstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 04/01/2025 5:45 PM MDTRecord: 9 ftCATEGORY STAGE 
Minor Flooding 8 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
Stage may be affected by ice during winter months.
River forecasts will be issued for this location when the water level reaches 1.5 feet from flood stage.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 7.5 - Minor flooding along the south bank.
Gauge Info
| Coordinates | 45.8338, -109.939 |
| RFC | MBRFC |
| State | MT |
| WFO | BYZ |
| County | Sweet Grass |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 06200000 |
Gauge Location
Recent Crests
| 1. | 6.74 ft | on 06-11-2024 |
| 2. | 5.97 ft | on 06-03-2023 |
| 3. | 8.56 ft | on 06-13-2022 |
| 4. | 7.44 ft | on 06-06-2021 |
| 5. | 8.33 ft | on 06-01-2020 |
Recent Crests
| 1. | 6.74 ft | on 06-11-2024 |
| 2. | 5.97 ft | on 06-03-2023 |
| 3. | 8.56 ft | on 06-13-2022 |
| 4. | 7.44 ft | on 06-06-2021 |
| 5. | 8.33 ft | on 06-01-2020 |
| 6. | 7.60 ft | on 06-07-2019 |
| 7. | 7.64 ft | on 05-27-2018 |
| 8. | 7.26 ft | on 06-06-2017 |
| 9. | 6.74 ft | on 06-10-2016 |
| 10. | 7.17 ft | on 06-02-2015 |
| 11. | 7.71 ft | on 05-29-2014 |
| 12. | 6.80 ft | on 06-12-2013 |
| 13. | 7.03 ft | on 06-06-2012 |
| 14. | 8.04 ft | on 06-30-2011 |
| 15. | 6.32 ft | on 06-05-2010 |
| 16. | 6.57 ft | on 06-21-2009 |
| 17. | 6.80 ft | on 06-05-2008 |
| 18. | 5.60 ft | on 06-07-2007 |
| 19. | 6.02 ft | on 06-09-2006 |
| 20. | 6.41 ft | on 06-23-2005 |
| 21. | 5.25 ft | on 06-10-2004 |
| 22. | 6.86 ft | on 05-30-2003 |
| 23. | 6.65 ft | on 06-02-2002 |
| 24. | 5.19 ft | on 05-15-2001 |
| 25. | 5.65 ft | on 06-08-2000 |
| 26. | 6.63 ft | on 06-22-1999 |
| 27. | 6.01 ft | on 07-03-1998 |
| 28. | 9.00 ft | on 06-05-1997 |
| 29. | 7.47 ft | on 06-10-1996 |
| 30. | 6.74 ft | on 06-15-1995 |
| 31. | 5.88 ft | on 05-13-1994 |
| 32. | 6.23 ft | on 06-22-1993 |
| 33. | 6.11 ft | on 06-20-1992 |
| 34. | 7.60 ft | on 06-12-1991 |
| 35. | 6.11 ft | on 06-11-1990 |
| 36. | 6.47 ft | on 06-16-1989 |
| 37. | 6.36 ft | on 06-05-1988 |
| 38. | 4.66 ft | on 05-17-1987 |
| 39. | 6.52 ft | on 06-06-1986 |
| 40. | 5.81 ft | on 06-08-1985 |
| 41. | 6.58 ft | on 06-30-1984 |
| 42. | 6.70 ft | on 07-10-1983 |
| 43. | 7.44 ft | on 06-29-1982 |
| 44. | 6.91 ft | on 06-07-1981 |
| 45. | 6.70 ft | on 05-23-1980 |
| 46. | 6.83 ft | on 06-14-1979 |
| 47. | 7.39 ft | on 06-10-1978 |
| 48. | 6.06 ft | on 06-09-1977 |
| 49. | 6.18 ft | on 06-10-1976 |
| 50. | 8.25 ft | on 07-08-1975 |
| 51. | 7.89 ft | on 07-05-1975 |
| 52. | 7.87 ft | on 06-18-1974 |
| 53. | 6.90 ft | on 06-10-1973 |
| 54. | 6.48 ft | on 06-08-1972 |
| 55. | 7.60 ft | on 06-23-1971 |
| 56. | 7.58 ft | on 06-27-1970 |
| 57. | 6.56 ft | on 05-28-1969 |
| 58. | 7.43 ft | on 06-20-1968 |
| 59. | 6.32 ft | on 05-31-1966 |
| 60. | 7.08 ft | on 06-24-1965 |
| 61. | 7.51 ft | on 06-16-1965 |
| 62. | 7.50 ft | on 06-28-1964 |
| 63. | 7.13 ft | on 06-16-1963 |
| 64. | 6.24 ft | on 06-27-1962 |
| 65. | 5.54 ft | on 06-09-1961 |
| 66. | 6.07 ft | on 06-15-1960 |
| 67. | 7.68 ft | on 06-15-1959 |
| 68. | 5.78 ft | on 05-27-1958 |
| 69. | 6.94 ft | on 06-05-1957 |
| 70. | 7.84 ft | on 05-28-1956 |
| 71. | 5.75 ft | on 06-16-1955 |
| 72. | 6.82 ft | on 06-14-1953 |
| 73. | 6.85 ft | on 06-07-1952 |
| 74. | 5.78 ft | on 06-17-1951 |
| 75. | 6.07 ft | on 06-17-1950 |
| 76. | 5.47 ft | on 05-17-1949 |
| 77. | 7.37 ft | on 06-05-1948 |
| 78. | 6.93 ft | on 06-20-1947 |
Historic Crests
| 1. | 9.00 ft | on 06-05-1997 |
| 2. | 8.56 ft | on 06-13-2022 |
| 3. | 8.33 ft | on 06-01-2020 |
| 4. | 8.25 ft | on 07-08-1975 |
| 5. | 8.04 ft | on 06-30-2011 |
Historic Crests
| 1. | 9.00 ft | on 06-05-1997 |
| 2. | 8.56 ft | on 06-13-2022 |
| 3. | 8.33 ft | on 06-01-2020 |
| 4. | 8.25 ft | on 07-08-1975 |
| 5. | 8.04 ft | on 06-30-2011 |
| 6. | 7.89 ft | on 07-05-1975 |
| 7. | 7.87 ft | on 06-18-1974 |
| 8. | 7.84 ft | on 05-28-1956 |
| 9. | 7.71 ft | on 05-29-2014 |
| 10. | 7.68 ft | on 06-15-1959 |
| 11. | 7.64 ft | on 05-27-2018 |
| 12. | 7.60 ft | on 06-23-1971 |
| 13. | 7.60 ft | on 06-12-1991 |
| 14. | 7.60 ft | on 06-07-2019 |
| 15. | 7.58 ft | on 06-27-1970 |
| 16. | 7.51 ft | on 06-16-1965 |
| 17. | 7.50 ft | on 06-28-1964 |
| 18. | 7.47 ft | on 06-10-1996 |
| 19. | 7.44 ft | on 06-06-2021 |
| 20. | 7.44 ft | on 06-29-1982 |
| 21. | 7.43 ft | on 06-20-1968 |
| 22. | 7.39 ft | on 06-10-1978 |
| 23. | 7.37 ft | on 06-05-1948 |
| 24. | 7.26 ft | on 06-06-2017 |
| 25. | 7.17 ft | on 06-02-2015 |
| 26. | 7.13 ft | on 06-16-1963 |
| 27. | 7.08 ft | on 06-24-1965 |
| 28. | 7.03 ft | on 06-06-2012 |
| 29. | 6.94 ft | on 06-05-1957 |
| 30. | 6.93 ft | on 06-20-1947 |
| 31. | 6.91 ft | on 06-07-1981 |
| 32. | 6.90 ft | on 06-10-1973 |
| 33. | 6.86 ft | on 05-30-2003 |
| 34. | 6.85 ft | on 06-07-1952 |
| 35. | 6.83 ft | on 06-14-1979 |
| 36. | 6.82 ft | on 06-14-1953 |
| 37. | 6.80 ft | on 06-12-2013 |
| 38. | 6.80 ft | on 06-05-2008 |
| 39. | 6.74 ft | on 06-10-2016 |
| 40. | 6.74 ft | on 06-15-1995 |
| 41. | 6.74 ft | on 06-11-2024 |
| 42. | 6.70 ft | on 07-10-1983 |
| 43. | 6.70 ft | on 05-23-1980 |
| 44. | 6.65 ft | on 06-02-2002 |
| 45. | 6.63 ft | on 06-22-1999 |
| 46. | 6.58 ft | on 06-30-1984 |
| 47. | 6.57 ft | on 06-21-2009 |
| 48. | 6.56 ft | on 05-28-1969 |
| 49. | 6.52 ft | on 06-06-1986 |
| 50. | 6.48 ft | on 06-08-1972 |
| 51. | 6.47 ft | on 06-16-1989 |
| 52. | 6.41 ft | on 06-23-2005 |
| 53. | 6.36 ft | on 06-05-1988 |
| 54. | 6.32 ft | on 05-31-1966 |
| 55. | 6.32 ft | on 06-05-2010 |
| 56. | 6.24 ft | on 06-27-1962 |
| 57. | 6.23 ft | on 06-22-1993 |
| 58. | 6.18 ft | on 06-10-1976 |
| 59. | 6.11 ft | on 06-11-1990 |
| 60. | 6.11 ft | on 06-20-1992 |
| 61. | 6.07 ft | on 06-17-1950 |
| 62. | 6.07 ft | on 06-15-1960 |
| 63. | 6.06 ft | on 06-09-1977 |
| 64. | 6.02 ft | on 06-09-2006 |
| 65. | 6.01 ft | on 07-03-1998 |
| 66. | 5.97 ft | on 06-03-2023 |
| 67. | 5.88 ft | on 05-13-1994 |
| 68. | 5.81 ft | on 06-08-1985 |
| 69. | 5.78 ft | on 06-17-1951 |
| 70. | 5.78 ft | on 05-27-1958 |
| 71. | 5.75 ft | on 06-16-1955 |
| 72. | 5.65 ft | on 06-08-2000 |
| 73. | 5.60 ft | on 06-07-2007 |
| 74. | 5.54 ft | on 06-09-1961 |
| 75. | 5.47 ft | on 05-17-1949 |
| 76. | 5.25 ft | on 06-10-2004 |
| 77. | 5.19 ft | on 05-15-2001 |
| 78. | 4.66 ft | on 05-17-1987 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | N/A |
| moderate Flooding | N/A |
| minor Flooding | 4064.30 ft |
| action | N/A |
| Latest Value | 4057.78 ft |
| Gauge Zero | 4056.30 ft |
Gauge Photos
No Images Found
Unique Local Info
Collaborative Agencies
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.
Resources
Hydrologic Resource Links
- River Forecast Centers
- Text Products
- Past Precipitation
- Forecast Precipitation
- USGS MT/WY Streamflow Conditions
- NRCS-MT Water Supply Outlook Reports
- NRCS-WY Water Supply Outlook Reports
- NRCS Wyoming Snow Survey
- NRCS Montana Snow Survey
- State of Wyoming Stream Gages
- State of Montana Stream Gages
- Drought Monitor
- NOHRSC Snow Information
- Inundation Mapping Locations