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Hydrograph River at a Glance Download
Cowlitz River near Kosmos River Discharge (cfs)Stage (ft)Observed: 7710 cfs at 9:30AM May 24, 2022Observed: 7730 cfs at 9:45AM May 24, 2022Observed: 7700 cfs at 10:00AM May 24, 2022Observed: 7640 cfs at 10:15AM May 24, 2022Observed: 7610 cfs at 10:30AM May 24, 2022Observed: 7610 cfs at 10:45AM May 24, 2022Observed: 7620 cfs at 11:00AM May 24, 2022Observed: 7730 cfs at 11:15AM May 24, 2022Observed: 7800 cfs at 11:30AM May 24, 2022Observed: 7660 cfs at 11:45AM May 24, 2022Observed: 7690 cfs at 12:00PM May 24, 2022Observed: 7870 cfs at 12:15PM May 24, 2022Observed: 7880 cfs at 12:30PM May 24, 2022Observed: 7860 cfs at 12:45PM May 24, 2022Observed: 7850 cfs at 1:00PM May 24, 2022Observed: 7850 cfs at 1:15PM May 24, 2022Observed: 7910 cfs at 1:30PM May 24, 2022Observed: 7830 cfs at 1:45PM May 24, 2022Observed: 7860 cfs at 2:00PM May 24, 2022Observed: 7870 cfs at 2:15PM May 24, 2022Observed: 7830 cfs at 2:30PM May 24, 2022Observed: 7880 cfs at 2:45PM May 24, 2022Observed: 7860 cfs at 3:00PM May 24, 2022Observed: 7790 cfs at 3:15PM May 24, 2022Observed: 7790 cfs at 3:30PM May 24, 2022Observed: 7750 cfs at 3:45PM May 24, 2022Observed: 7760 cfs at 4:00PM May 24, 2022Observed: 7670 cfs at 4:15PM May 24, 2022Observed: 7680 cfs at 4:30PM May 24, 2022Observed: 7690 cfs at 4:45PM May 24, 2022Observed: 7650 cfs at 5:00PM May 24, 2022Observed: 7660 cfs at 5:15PM May 24, 2022Observed: 7680 cfs at 5:30PM May 24, 2022Observed: 7650 cfs at 5:45PM May 24, 2022Observed: 7640 cfs at 6:00PM May 24, 2022Observed: 8030 cfs at 6:15PM May 24, 2022Observed: 8000 cfs at 6:30PM May 24, 2022Observed: 7970 cfs at 6:45PM May 24, 2022Observed: 7970 cfs at 7:00PM May 24, 2022Observed: 7220 cfs at 7:15PM May 24, 2022Observed: 7230 cfs at 7:30PM May 24, 2022Observed: 7270 cfs at 7:45PM May 24, 2022Observed: 7260 cfs at 8:00PM May 24, 2022Observed: 8090 cfs at 8:15PM May 24, 2022Observed: 8080 cfs at 8:30PM May 24, 2022Observed: 8080 cfs at 8:45PM May 24, 2022Observed: 8090 cfs at 9:00PM May 24, 2022Observed: 7250 cfs at 9:15PM May 24, 2022Observed: 7230 cfs at 9:30PM May 24, 2022Observed: 7210 cfs at 9:45PM May 24, 2022Observed: 7250 cfs at 10:00PM May 24, 2022Observed: 7970 cfs at 10:15PM May 24, 2022Observed: 8010 cfs at 10:30PM May 24, 2022Observed: 8000 cfs at 10:45PM May 24, 2022Observed: 8010 cfs at 11:00PM May 24, 2022Observed: 7570 cfs at 11:15PM May 24, 2022Observed: 7520 cfs at 11:30PM May 24, 2022Observed: 7510 cfs at 11:45PM May 24, 2022Observed: 7570 cfs at 12:00AM May 25, 2022Observed: 7740 cfs at 12:15AM May 25, 2022Observed: 7720 cfs at 12:30AM May 25, 2022Observed: 7710 cfs at 12:45AM May 25, 2022Observed: 7720 cfs at 1:00AM May 25, 2022Observed: 7870 cfs at 1:15AM May 25, 2022Observed: 7870 cfs at 1:30AM May 25, 2022Observed: 7850 cfs at 1:45AM May 25, 2022Observed: 7880 cfs at 2:00AM May 25, 2022Observed: 7500 cfs at 2:15AM May 25, 2022Observed: 7510 cfs at 2:30AM May 25, 2022Observed: 7530 cfs at 2:45AM May 25, 2022Observed: 7570 cfs at 3:00AM May 25, 2022Observed: 8000 cfs at 3:15AM May 25, 2022Observed: 7970 cfs at 3:30AM May 25, 2022Observed: 7980 cfs at 3:45AM May 25, 2022Observed: 7960 cfs at 4:00AM May 25, 2022Observed: 7620 cfs at 4:15AM May 25, 2022Observed: 7630 cfs at 4:30AM May 25, 2022Observed: 7630 cfs at 4:45AM May 25, 2022Observed: 7660 cfs at 5:00AM May 25, 2022Observed: 7930 cfs at 5:15AM May 25, 2022Observed: 7940 cfs at 5:30AM May 25, 2022Observed: 7920 cfs at 5:45AM May 25, 2022Observed: 7870 cfs at 6:00AM May 25, 2022Observed: 7640 cfs at 6:15AM May 25, 2022Observed: 7660 cfs at 6:30AM May 25, 2022Observed: 7650 cfs at 6:45AM May 25, 2022Observed: 7670 cfs at 7:00AM May 25, 2022Observed: 8050 cfs at 7:15AM May 25, 2022Observed: 8000 cfs at 7:30AM May 25, 2022Observed: 8050 cfs at 7:45AM May 25, 2022Observed: 8010 cfs at 8:00AM May 25, 2022Observed: 7660 cfs at 8:15AM May 25, 2022Observed: 7660 cfs at 8:30AM May 25, 2022Observed: 7610 cfs at 8:45AM May 25, 2022Observed: 7940 cfs at 9:00AM May 25, 2022Observed: 7590 cfs at 9:15AM May 25, 2022Observed: 7570 cfs at 9:30AM May 25, 2022Observed: 7610 cfs at 9:45AM May 25, 2022Observed: 8250 cfs at 10:00AM May 25, 2022Observed: 8250 cfs at 10:15AM May 25, 2022Observed: 8210 cfs at 10:30AM May 25, 2022Observed: 8240 cfs at 10:45AM May 25, 2022Observed: 8230 cfs at 11:00AM May 25, 2022Observed: 8120 cfs at 11:15AM May 25, 2022Observed: 8120 cfs at 11:30AM May 25, 2022Observed: 8110 cfs at 11:45AM May 25, 2022Observed: 8120 cfs at 12:00PM May 25, 2022Observed: 7700 cfs at 12:15PM May 25, 2022Observed: 7700 cfs at 12:30PM May 25, 2022Observed: 7720 cfs at 12:45PM May 25, 2022Observed: 7710 cfs at 1:00PM May 25, 2022Observed: 7870 cfs at 1:15PM May 25, 2022Observed: 7860 cfs at 1:30PM May 25, 2022Observed: 7910 cfs at 1:45PM May 25, 2022Observed: 7830 cfs at 2:00PM May 25, 2022Observed: 8130 cfs at 2:15PM May 25, 2022Observed: 8100 cfs at 2:30PM May 25, 2022Observed: 8110 cfs at 2:45PM May 25, 2022Observed: 8120 cfs at 3:00PM May 25, 2022Observed: 7510 cfs at 3:15PM May 25, 2022Observed: 7550 cfs at 3:30PM May 25, 2022Observed: 7520 cfs at 3:45PM May 25, 2022Observed: 7480 cfs at 4:00PM May 25, 2022Observed: 8360 cfs at 4:15PM May 25, 2022Observed: 8340 cfs at 4:30PM May 25, 2022Observed: 8330 cfs at 4:45PM May 25, 2022Observed: 8270 cfs at 5:00PM May 25, 2022Observed: 7680 cfs at 5:15PM May 25, 2022Observed: 7640 cfs at 5:30PM May 25, 2022Observed: 7600 cfs at 5:45PM May 25, 2022Observed: 7640 cfs at 6:00PM May 25, 2022Observed: 8280 cfs at 6:15PM May 25, 2022Observed: 8310 cfs at 6:30PM May 25, 2022Observed: 8270 cfs at 6:45PM May 25, 2022Observed: 8290 cfs at 7:00PM May 25, 2022Observed: 7590 cfs at 7:15PM May 25, 2022Observed: 7640 cfs at 7:30PM May 25, 2022Observed: 7630 cfs at 7:45PM May 25, 2022Observed: 7640 cfs at 8:00PM May 25, 2022Observed: 8280 cfs at 8:15PM May 25, 2022Observed: 8290 cfs at 8:30PM May 25, 2022Observed: 8260 cfs at 8:45PM May 25, 2022Observed: 8250 cfs at 9:00PM May 25, 2022Observed: 7850 cfs at 9:15PM May 25, 2022Observed: 7890 cfs at 9:30PM May 25, 2022Observed: 7860 cfs at 9:45PM May 25, 2022Observed: 7890 cfs at 10:00PM May 25, 2022Observed: 8300 cfs at 10:15PM May 25, 2022Observed: 8270 cfs at 10:30PM May 25, 2022Observed: 8260 cfs at 10:45PM May 25, 2022Observed: 8280 cfs at 11:00PM May 25, 2022Observed: 7900 cfs at 11:15PM May 25, 2022Observed: 7880 cfs at 11:30PM May 25, 2022Observed: 7870 cfs at 11:45PM May 25, 2022Observed: 7950 cfs at 12:00AM May 26, 2022Observed: 8450 cfs at 12:15AM May 26, 2022Observed: 8430 cfs at 12:30AM May 26, 2022Observed: 8460 cfs at 12:45AM May 26, 2022Observed: 8470 cfs at 1:00AM May 26, 2022Observed: 7770 cfs at 1:15AM May 26, 2022Observed: 7740 cfs at 1:30AM May 26, 2022Observed: 7780 cfs at 1:45AM May 26, 2022Observed: 7780 cfs at 2:00AM May 26, 2022Observed: 8510 cfs at 2:15AM May 26, 2022Observed: 8490 cfs at 2:30AM May 26, 2022Observed: 8500 cfs at 2:45AM May 26, 2022Observed: 8470 cfs at 3:00AM May 26, 2022Observed: 8200 cfs at 3:15AM May 26, 2022Observed: 8270 cfs at 3:30AM May 26, 2022Observed: 8220 cfs at 3:45AM May 26, 2022Observed: 8220 cfs at 4:00AM May 26, 2022Observed: 8430 cfs at 4:15AM May 26, 2022Observed: 8420 cfs at 4:30AM May 26, 2022Observed: 8420 cfs at 4:45AM May 26, 2022Observed: 8450 cfs at 5:00AM May 26, 2022Observed: 8320 cfs at 5:15AM May 26, 2022Observed: 8290 cfs at 5:30AM May 26, 2022Observed: 8280 cfs at 5:45AM May 26, 2022Observed: 8280 cfs at 6:00AM May 26, 2022Observed: 8540 cfs at 6:15AM May 26, 2022Observed: 8540 cfs at 6:30AM May 26, 2022Observed: 8540 cfs at 6:45AM May 26, 2022Observed: 8540 cfs at 7:00AM May 26, 2022Observed: 8560 cfs at 7:15AM May 26, 2022Observed: 8540 cfs at 7:30AM May 26, 2022Observed: 8530 cfs at 7:45AM May 26, 2022Observed: 8540 cfs at 8:00AM May 26, 2022Observed: 8500 cfs at 8:15AM May 26, 2022Observed: 8480 cfs at 8:30AM May 26, 2022Observed: 8500 cfs at 8:45AM May 26, 2022Observed: 8490 cfs at 9:00AM May 26, 2022Observed: 8660 cfs at 9:15AM May 26, 2022Observed: 8670 cfs at 9:30AM May 26, 2022Observed: 8640 cfs at 9:45AM May 26, 2022Observed: 8620 cfs at 10:00AM May 26, 2022Observed: 8650 cfs at 10:15AM May 26, 2022Observed: 8670 cfs at 10:30AM May 26, 2022Observed: 8660 cfs at 10:45AM May 26, 2022Observed: 8700 cfs at 11:00AM May 26, 2022Observed: 8440 cfs at 11:15AM May 26, 2022Observed: 8420 cfs at 11:30AM May 26, 2022Observed: 8480 cfs at 11:45AM May 26, 2022Observed: 8460 cfs at 12:00PM May 26, 2022Observed: 8710 cfs at 12:15PM May 26, 2022Observed: 8740 cfs at 12:30PM May 26, 2022Observed: 8690 cfs at 12:45PM May 26, 2022Observed: 8690 cfs at 1:00PM May 26, 2022Observed: 8570 cfs at 1:15PM May 26, 2022Observed: 8560 cfs at 1:30PM May 26, 2022Observed: 8520 cfs at 1:45PM May 26, 2022Observed: 8560 cfs at 2:00PM May 26, 2022Observed: 8560 cfs at 2:15PM May 26, 2022Observed: 8590 cfs at 2:30PM May 26, 2022Observed: 8600 cfs at 2:45PM May 26, 2022Observed: 8590 cfs at 3:00PM May 26, 2022Observed: 8430 cfs at 3:15PM May 26, 2022Observed: 8470 cfs at 3:30PM May 26, 2022Observed: 8530 cfs at 3:45PM May 26, 2022Observed: 8500 cfs at 4:00PM May 26, 2022Observed: 8740 cfs at 4:15PM May 26, 2022Observed: 8730 cfs at 4:30PM May 26, 2022Observed: 8730 cfs at 4:45PM May 26, 2022Observed: 8670 cfs at 5:00PM May 26, 2022Observed: 8420 cfs at 5:15PM May 26, 2022Observed: 8340 cfs at 5:30PM May 26, 2022Observed: 8390 cfs at 5:45PM May 26, 2022Observed: 8390 cfs at 6:00PM May 26, 2022Observed: 8660 cfs at 6:15PM May 26, 2022Observed: 8720 cfs at 6:30PM May 26, 2022Observed: 8700 cfs at 6:45PM May 26, 2022Observed: 8630 cfs at 7:00PM May 26, 2022Observed: 8410 cfs at 7:15PM May 26, 2022Observed: 8410 cfs at 7:30PM May 26, 2022Observed: 8400 cfs at 7:45PM May 26, 2022Observed: 8400 cfs at 8:00PM May 26, 2022Observed: 8740 cfs at 8:15PM May 26, 2022Observed: 8740 cfs at 8:30PM May 26, 2022Observed: 8740 cfs at 8:45PM May 26, 2022Observed: 8710 cfs at 9:00PM May 26, 2022Observed: 8100 cfs at 9:15PM May 26, 2022Observed: 8060 cfs at 9:30PM May 26, 2022Observed: 8030 cfs at 9:45PM May 26, 2022Observed: 8090 cfs at 10:00PM May 26, 2022Observed: 8850 cfs at 10:15PM May 26, 2022Observed: 8750 cfs at 10:30PM May 26, 2022Observed: 8780 cfs at 10:45PM May 26, 2022Observed: 8810 cfs at 11:00PM May 26, 2022Observed: 8490 cfs at 11:15PM May 26, 2022Observed: 8490 cfs at 11:30PM May 26, 2022Observed: 8500 cfs at 11:45PM May 26, 2022Observed: 8500 cfs at 12:00AM May 27, 2022Observed: 8470 cfs at 12:15AM May 27, 2022Observed: 8490 cfs at 12:30AM May 27, 2022Observed: 8480 cfs at 12:45AM May 27, 2022Observed: 8440 cfs at 1:00AM May 27, 2022Observed: 8670 cfs at 1:15AM May 27, 2022Observed: 8660 cfs at 1:30AM May 27, 2022Observed: 8660 cfs at 1:45AM May 27, 2022Observed: 8680 cfs at 2:00AM May 27, 2022Observed: 8490 cfs at 2:15AM May 27, 2022Observed: 8530 cfs at 2:30AM May 27, 2022Observed: 8470 cfs at 2:45AM May 27, 2022Observed: 8450 cfs at 3:00AM May 27, 2022Observed: 8720 cfs at 3:15AM May 27, 2022Observed: 8710 cfs at 3:30AM May 27, 2022Observed: 8700 cfs at 3:45AM May 27, 2022Observed: 8690 cfs at 4:00AM May 27, 2022Observed: 8760 cfs at 4:15AM May 27, 2022Observed: 8770 cfs at 4:30AM May 27, 2022Observed: 8760 cfs at 4:45AM May 27, 2022Observed: 8750 cfs at 5:00AM May 27, 2022Observed: 8790 cfs at 5:15AM May 27, 2022Observed: 8800 cfs at 5:30AM May 27, 2022Observed: 8820 cfs at 5:45AM May 27, 2022Observed: 8800 cfs at 6:00AM May 27, 2022Observed: 9070 cfs at 6:15AM May 27, 2022Observed: 9060 cfs at 6:30AM May 27, 2022Observed: 9060 cfs at 6:45AM May 27, 2022Observed: 9060 cfs at 7:00AM May 27, 2022Observed: 8930 cfs at 7:15AM May 27, 2022Observed: 8940 cfs at 7:30AM May 27, 2022Observed: 8930 cfs at 7:45AM May 27, 2022Observed: 8920 cfs at 8:00AM May 27, 2022Highest Observation: 9360 cfs at 8:15AM May 27, 2022Highest Observation: 9360 cfs at 8:30AM May 27, 2022Forecast: 9081.41 cfs 11:00AM May 27, 2022Forecast: 9975.55 cfs 5:00PM May 27, 2022Forecast: 11086.8 cfs 11:00PM May 27, 2022Forecast: 11746.4 cfs 5:00AM May 28, 2022Forecast: 11910.9 cfs 11:00AM May 28, 2022Forecast: 11931.6 cfs 5:00PM May 28, 2022Forecast: 11906.5 cfs 11:00PM May 28, 2022Forecast: 11914.6 cfs 5:00AM May 29, 2022Forecast: 12297.8 cfs 11:00AM May 29, 2022Forecast: 13139.8 cfs 5:00PM May 29, 2022Forecast: 13836.1 cfs 11:00PM May 29, 2022Highest Forecast: 14047.8 cfs 5:00AM May 30, 2022Forecast: 13807.6 cfs 11:00AM May 30, 2022Forecast: 13256.2 cfs 5:00PM May 30, 2022Forecast: 12539.5 cfs 11:00PM May 30, 2022Forecast: 11776.7 cfs 5:00AM May 31, 2022Forecast: 11058 cfs 11:00AM May 31, 2022Forecast: 10451.7 cfs 5:00PM May 31, 2022Forecast: 9972.25 cfs 11:00PM May 31, 2022Forecast: 9626.98 cfs 5:00AM Jun 01, 2022Forecast: 9448.44 cfs 11:00AM Jun 01, 2022Forecast: 9471.78 cfs 5:00PM Jun 01, 2022Forecast: 9629.16 cfs 11:00PM Jun 01, 2022Forecast: 9836.55 cfs 5:00AM Jun 02, 2022Forecast: 10128.1 cfs 11:00AM Jun 02, 2022Forecast: 10539.5 cfs 5:00PM Jun 02, 2022Forecast: 11084.9 cfs 11:00PM Jun 02, 2022Forecast: 12038.5 cfs 5:00AM Jun 03, 2022USGS--Water Resources of the United StatesCOKW1(plotting QRIRG) Graph Created (9:20AM May 27, 2022)ObservedForecast (issued 8:39AM May 27)Latest observed value: 9360 cfs at 8:30 AM PDT 27-May-2022.
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Tabular Data (PDT)
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Datum: Not Available
Metadata
NOTE: River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

NOTE: Gage observations from this river gage have been temporarily discontinued due to a system maintenance and replacement project. River forecasts will continue but will not have the benefit of using the actual river flows.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Cowlitz River near Kosmos are issued routinely year-round.

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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 0
Low Stage (in feet): 0

Historic Crests

(P): Preliminary values subject to further review.

Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
About This Location Collapse

Latitude: 46.466389° N, Longitude: 122.107778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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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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Page last modified: 2-Nov-2020 7:27 PM
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