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| 20.0 |
the Wynoochee River will cause major flooding in the Wynoochee Valley...with deep and swift flood waters inundating farms...residences...and roads. Damage from erosion could be significant. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Wynoochee River Basin. |
| 18.0 |
the Wynoochee River will flood much of the low area of the Wynoochee Valley...with deep and swift flood waters inundating farms...residential areas...and roads |
| 15.0 |
the Wynoochee River will locally spill over its banks into fields in the Wynoochee Valley. Flooding threatens residences and roads upper part of river |
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Latitude: 47.011700° N,
Longitude: 123.654000° W,
Horizontal Datum:
NAD83
River Stage Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
18 ft |
Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps |
| Vertical Datum |
Elevation (gauge height = 0) |
Elevation (gauge height = flood stage) |
Elevation information source |
| NAVD88 |
N/A |
N/A |
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps |
| NGVD 29 |
N/A |
N/A |
Older USGS topographic maps, NGVD29 benchmarks |
| MSL |
N/A |
N/A |
Older USGS topographic maps, MSL benchmarks |
| Other |
40 ft |
58 ft |
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Hydrologic Resources
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Additional Resources
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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. |
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NWS Information |
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