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Hydrograph River at a Glance Download
Cowlitz River near Kosmos River Discharge (cfs)Stage (ft)Observed: 3230 cfs at 11:30PM Feb 03, 2023Observed: 3230 cfs at 11:45PM Feb 03, 2023Observed: 3260 cfs at 12:00AM Feb 04, 2023Observed: 3330 cfs at 12:15AM Feb 04, 2023Observed: 3330 cfs at 12:30AM Feb 04, 2023Observed: 3330 cfs at 12:45AM Feb 04, 2023Observed: 3320 cfs at 1:00AM Feb 04, 2023Observed: 3180 cfs at 1:15AM Feb 04, 2023Observed: 3180 cfs at 1:30AM Feb 04, 2023Observed: 3170 cfs at 1:45AM Feb 04, 2023Observed: 3180 cfs at 2:00AM Feb 04, 2023Observed: 3340 cfs at 2:15AM Feb 04, 2023Observed: 3350 cfs at 2:30AM Feb 04, 2023Observed: 3350 cfs at 2:45AM Feb 04, 2023Observed: 3340 cfs at 3:00AM Feb 04, 2023Observed: 3280 cfs at 3:15AM Feb 04, 2023Observed: 3290 cfs at 3:30AM Feb 04, 2023Observed: 3290 cfs at 3:45AM Feb 04, 2023Observed: 3230 cfs at 4:00AM Feb 04, 2023Observed: 3210 cfs at 4:15AM Feb 04, 2023Observed: 3210 cfs at 4:30AM Feb 04, 2023Observed: 3220 cfs at 4:45AM Feb 04, 2023Observed: 3220 cfs at 5:00AM Feb 04, 2023Observed: 3310 cfs at 5:15AM Feb 04, 2023Observed: 3320 cfs at 5:30AM Feb 04, 2023Observed: 3310 cfs at 5:45AM Feb 04, 2023Observed: 3320 cfs at 6:00AM Feb 04, 2023Observed: 3200 cfs at 6:15AM Feb 04, 2023Observed: 3270 cfs at 6:30AM Feb 04, 2023Observed: 3190 cfs at 6:45AM Feb 04, 2023Observed: 3240 cfs at 7:00AM Feb 04, 2023Observed: 3390 cfs at 7:15AM Feb 04, 2023Observed: 3390 cfs at 7:30AM Feb 04, 2023Observed: 3400 cfs at 7:45AM Feb 04, 2023Observed: 3390 cfs at 8:00AM Feb 04, 2023Observed: 3080 cfs at 8:15AM Feb 04, 2023Observed: 3100 cfs at 8:30AM Feb 04, 2023Observed: 3090 cfs at 8:45AM Feb 04, 2023Observed: 3140 cfs at 9:00AM Feb 04, 2023Observed: 3300 cfs at 9:15AM Feb 04, 2023Observed: 3300 cfs at 9:30AM Feb 04, 2023Observed: 3300 cfs at 9:45AM Feb 04, 2023Observed: 3370 cfs at 10:00AM Feb 04, 2023Observed: 3390 cfs at 10:15AM Feb 04, 2023Observed: 3400 cfs at 10:30AM Feb 04, 2023Observed: 3380 cfs at 10:45AM Feb 04, 2023Observed: 3400 cfs at 11:00AM Feb 04, 2023Observed: 3120 cfs at 11:15AM Feb 04, 2023Observed: 3110 cfs at 11:30AM Feb 04, 2023Observed: 3090 cfs at 11:45AM Feb 04, 2023Observed: 3090 cfs at 12:00PM Feb 04, 2023Observed: 3380 cfs at 12:15PM Feb 04, 2023Observed: 3370 cfs at 12:30PM Feb 04, 2023Observed: 3370 cfs at 12:45PM Feb 04, 2023Observed: 3380 cfs at 1:00PM Feb 04, 2023Observed: 3400 cfs at 1:15PM Feb 04, 2023Observed: 3390 cfs at 1:30PM Feb 04, 2023Observed: 3400 cfs at 1:45PM Feb 04, 2023Observed: 3380 cfs at 2:00PM Feb 04, 2023Observed: 3130 cfs at 2:15PM Feb 04, 2023Observed: 3120 cfs at 2:30PM Feb 04, 2023Observed: 3100 cfs at 2:45PM Feb 04, 2023Observed: 3130 cfs at 3:00PM Feb 04, 2023Observed: 3420 cfs at 3:15PM Feb 04, 2023Observed: 3410 cfs at 3:30PM Feb 04, 2023Observed: 3410 cfs at 3:45PM Feb 04, 2023Observed: 3380 cfs at 4:00PM Feb 04, 2023Observed: 3070 cfs at 4:15PM Feb 04, 2023Observed: 3060 cfs at 4:30PM Feb 04, 2023Observed: 3050 cfs at 4:45PM Feb 04, 2023Observed: 3030 cfs at 5:00PM Feb 04, 2023Observed: 3350 cfs at 5:15PM Feb 04, 2023Observed: 3330 cfs at 5:30PM Feb 04, 2023Observed: 3340 cfs at 5:45PM Feb 04, 2023Observed: 3320 cfs at 6:00PM Feb 04, 2023Observed: 3330 cfs at 6:15PM Feb 04, 2023Observed: 3330 cfs at 6:30PM Feb 04, 2023Observed: 3340 cfs at 6:45PM Feb 04, 2023Observed: 3330 cfs at 7:00PM Feb 04, 2023Observed: 3180 cfs at 7:15PM Feb 04, 2023Observed: 3210 cfs at 7:30PM Feb 04, 2023Observed: 3210 cfs at 7:45PM Feb 04, 2023Observed: 3200 cfs at 8:00PM Feb 04, 2023Observed: 3390 cfs at 8:15PM Feb 04, 2023Observed: 3400 cfs at 8:30PM Feb 04, 2023Observed: 3390 cfs at 8:45PM Feb 04, 2023Observed: 3380 cfs at 9:00PM Feb 04, 2023Observed: 3370 cfs at 9:15PM Feb 04, 2023Observed: 3390 cfs at 9:30PM Feb 04, 2023Observed: 3380 cfs at 9:45PM Feb 04, 2023Observed: 3400 cfs at 10:00PM Feb 04, 2023Observed: 3340 cfs at 10:15PM Feb 04, 2023Observed: 3340 cfs at 10:30PM Feb 04, 2023Observed: 3320 cfs at 10:45PM Feb 04, 2023Observed: 3320 cfs at 11:00PM Feb 04, 2023Observed: 3190 cfs at 11:15PM Feb 04, 2023Observed: 3190 cfs at 11:30PM Feb 04, 2023Observed: 3170 cfs at 11:45PM Feb 04, 2023Observed: 3170 cfs at 12:00AM Feb 05, 2023Observed: 3430 cfs at 12:15AM Feb 05, 2023Observed: 3420 cfs at 12:30AM Feb 05, 2023Observed: 3440 cfs at 12:45AM Feb 05, 2023Observed: 3420 cfs at 1:00AM Feb 05, 2023Observed: 3280 cfs at 1:15AM Feb 05, 2023Observed: 3290 cfs at 1:30AM Feb 05, 2023Observed: 3290 cfs at 1:45AM Feb 05, 2023Observed: 3290 cfs at 2:00AM Feb 05, 2023Observed: 3450 cfs at 2:15AM Feb 05, 2023Observed: 3430 cfs at 2:30AM Feb 05, 2023Observed: 3450 cfs at 2:45AM Feb 05, 2023Observed: 3450 cfs at 3:00AM Feb 05, 2023Observed: 3380 cfs at 3:15AM Feb 05, 2023Observed: 3380 cfs at 3:30AM Feb 05, 2023Observed: 3380 cfs at 3:45AM Feb 05, 2023Observed: 3370 cfs at 4:00AM Feb 05, 2023Observed: 3090 cfs at 4:15AM Feb 05, 2023Observed: 3080 cfs at 4:30AM Feb 05, 2023Observed: 3080 cfs at 4:45AM Feb 05, 2023Observed: 3100 cfs at 5:00AM Feb 05, 2023Observed: 3500 cfs at 5:15AM Feb 05, 2023Observed: 3500 cfs at 5:30AM Feb 05, 2023Observed: 3510 cfs at 5:45AM Feb 05, 2023Observed: 3510 cfs at 6:00AM Feb 05, 2023Observed: 3400 cfs at 6:15AM Feb 05, 2023Observed: 3430 cfs at 6:30AM Feb 05, 2023Observed: 3410 cfs at 6:45AM Feb 05, 2023Observed: 3410 cfs at 7:00AM Feb 05, 2023Observed: 3500 cfs at 7:15AM Feb 05, 2023Observed: 3450 cfs at 7:30AM Feb 05, 2023Observed: 3430 cfs at 7:45AM Feb 05, 2023Observed: 3420 cfs at 8:00AM Feb 05, 2023Observed: 3500 cfs at 8:15AM Feb 05, 2023Observed: 3450 cfs at 8:30AM Feb 05, 2023Observed: 3480 cfs at 8:45AM Feb 05, 2023Observed: 3470 cfs at 9:00AM Feb 05, 2023Observed: 3460 cfs at 9:15AM Feb 05, 2023Observed: 3480 cfs at 9:30AM Feb 05, 2023Observed: 3470 cfs at 9:45AM Feb 05, 2023Highest Observation: 4300 cfs at 10:00AM Feb 05, 2023Observed: 4260 cfs at 10:15AM Feb 05, 2023Observed: 4260 cfs at 10:30AM Feb 05, 2023Observed: 4250 cfs at 10:45AM Feb 05, 2023Observed: 3670 cfs at 11:00AM Feb 05, 2023Observed: 3660 cfs at 11:15AM Feb 05, 2023Observed: 3650 cfs at 11:30AM Feb 05, 2023Observed: 3550 cfs at 11:45AM Feb 05, 2023Observed: 3660 cfs at 12:00PM Feb 05, 2023Observed: 3660 cfs at 12:15PM Feb 05, 2023Observed: 3650 cfs at 12:30PM Feb 05, 2023Observed: 3650 cfs at 12:45PM Feb 05, 2023Observed: 3650 cfs at 1:00PM Feb 05, 2023Observed: 3670 cfs at 1:15PM Feb 05, 2023Observed: 3650 cfs at 1:30PM Feb 05, 2023Observed: 3650 cfs at 1:45PM Feb 05, 2023Observed: 3630 cfs at 2:00PM Feb 05, 2023Observed: 3150 cfs at 2:15PM Feb 05, 2023Observed: 3150 cfs at 2:30PM Feb 05, 2023Observed: 3150 cfs at 2:45PM Feb 05, 2023Observed: 3150 cfs at 3:00PM Feb 05, 2023Observed: 3270 cfs at 3:15PM Feb 05, 2023Observed: 3260 cfs at 3:30PM Feb 05, 2023Observed: 3260 cfs at 3:45PM Feb 05, 2023Observed: 3250 cfs at 4:00PM Feb 05, 2023Observed: 3270 cfs at 4:15PM Feb 05, 2023Observed: 3270 cfs at 4:30PM Feb 05, 2023Observed: 3250 cfs at 4:45PM Feb 05, 2023Observed: 3250 cfs at 5:00PM Feb 05, 2023Observed: 3600 cfs at 5:15PM Feb 05, 2023Observed: 3730 cfs at 5:30PM Feb 05, 2023Observed: 3740 cfs at 5:45PM Feb 05, 2023Observed: 3700 cfs at 6:00PM Feb 05, 2023Observed: 3400 cfs at 6:15PM Feb 05, 2023Observed: 3390 cfs at 6:30PM Feb 05, 2023Observed: 3380 cfs at 6:45PM Feb 05, 2023Observed: 3390 cfs at 7:00PM Feb 05, 2023Observed: 3500 cfs at 7:15PM Feb 05, 2023Observed: 3530 cfs at 7:30PM Feb 05, 2023Observed: 3550 cfs at 7:45PM Feb 05, 2023Observed: 3540 cfs at 8:00PM Feb 05, 2023Observed: 3570 cfs at 8:15PM Feb 05, 2023Observed: 3580 cfs at 8:30PM Feb 05, 2023Observed: 3570 cfs at 8:45PM Feb 05, 2023Observed: 3560 cfs at 9:00PM Feb 05, 2023Observed: 3560 cfs at 9:15PM Feb 05, 2023Observed: 3540 cfs at 9:30PM Feb 05, 2023Observed: 3540 cfs at 9:45PM Feb 05, 2023Observed: 3540 cfs at 10:00PM Feb 05, 2023Observed: 3550 cfs at 10:15PM Feb 05, 2023Observed: 3530 cfs at 10:30PM Feb 05, 2023Observed: 3550 cfs at 10:45PM Feb 05, 2023Observed: 3540 cfs at 11:00PM Feb 05, 2023Observed: 3540 cfs at 11:15PM Feb 05, 2023Observed: 3540 cfs at 11:30PM Feb 05, 2023Observed: 3530 cfs at 11:45PM Feb 05, 2023Observed: 3530 cfs at 12:00AM Feb 06, 2023Observed: 3720 cfs at 12:15AM Feb 06, 2023Observed: 3720 cfs at 12:30AM Feb 06, 2023Observed: 3730 cfs at 12:45AM Feb 06, 2023Observed: 3720 cfs at 1:00AM Feb 06, 2023Observed: 3510 cfs at 1:15AM Feb 06, 2023Observed: 3510 cfs at 1:30AM Feb 06, 2023Observed: 3500 cfs at 1:45AM Feb 06, 2023Observed: 3500 cfs at 2:00AM Feb 06, 2023Observed: 3530 cfs at 2:15AM Feb 06, 2023Observed: 3550 cfs at 2:30AM Feb 06, 2023Observed: 3560 cfs at 2:45AM Feb 06, 2023Observed: 3550 cfs at 3:00AM Feb 06, 2023Observed: 3590 cfs at 3:15AM Feb 06, 2023Observed: 3700 cfs at 3:30AM Feb 06, 2023Observed: 3690 cfs at 3:45AM Feb 06, 2023Observed: 3690 cfs at 4:00AM Feb 06, 2023Observed: 3480 cfs at 4:15AM Feb 06, 2023Observed: 3460 cfs at 4:30AM Feb 06, 2023Observed: 3480 cfs at 4:45AM Feb 06, 2023Observed: 3480 cfs at 5:00AM Feb 06, 2023Observed: 3570 cfs at 5:15AM Feb 06, 2023Observed: 3560 cfs at 5:30AM Feb 06, 2023Observed: 3580 cfs at 5:45AM Feb 06, 2023Observed: 3560 cfs at 6:00AM Feb 06, 2023Observed: 3580 cfs at 6:15AM Feb 06, 2023Observed: 3560 cfs at 6:30AM Feb 06, 2023Observed: 3560 cfs at 6:45AM Feb 06, 2023Observed: 3560 cfs at 7:00AM Feb 06, 2023Observed: 3760 cfs at 7:15AM Feb 06, 2023Observed: 3740 cfs at 7:30AM Feb 06, 2023Observed: 3750 cfs at 7:45AM Feb 06, 2023Observed: 3740 cfs at 8:00AM Feb 06, 2023Observed: 3740 cfs at 8:15AM Feb 06, 2023Observed: 3750 cfs at 8:30AM Feb 06, 2023Observed: 3680 cfs at 8:45AM Feb 06, 2023Observed: 3580 cfs at 9:00AM Feb 06, 2023Observed: 3810 cfs at 9:15AM Feb 06, 2023Observed: 3800 cfs at 9:30AM Feb 06, 2023Observed: 3810 cfs at 9:45AM Feb 06, 2023Observed: 3800 cfs at 10:00AM Feb 06, 2023Observed: 3460 cfs at 10:15AM Feb 06, 2023Observed: 3490 cfs at 10:30AM Feb 06, 2023Observed: 3510 cfs at 10:45AM Feb 06, 2023Observed: 3510 cfs at 11:00AM Feb 06, 2023Observed: 3740 cfs at 11:15AM Feb 06, 2023Observed: 3740 cfs at 11:30AM Feb 06, 2023Observed: 3740 cfs at 11:45AM Feb 06, 2023Observed: 3750 cfs at 12:00PM Feb 06, 2023Observed: 3670 cfs at 12:15PM Feb 06, 2023Observed: 3680 cfs at 12:30PM Feb 06, 2023Observed: 3570 cfs at 12:45PM Feb 06, 2023Observed: 3560 cfs at 1:00PM Feb 06, 2023Observed: 3800 cfs at 1:15PM Feb 06, 2023Observed: 3810 cfs at 1:30PM Feb 06, 2023Observed: 3820 cfs at 1:45PM Feb 06, 2023Observed: 3800 cfs at 2:00PM Feb 06, 2023Observed: 3500 cfs at 2:15PM Feb 06, 2023Observed: 3500 cfs at 2:30PM Feb 06, 2023Observed: 3510 cfs at 2:45PM Feb 06, 2023Observed: 3500 cfs at 3:00PM Feb 06, 2023Observed: 3510 cfs at 3:15PM Feb 06, 2023Observed: 3520 cfs at 3:30PM Feb 06, 2023Observed: 3510 cfs at 3:45PM Feb 06, 2023Observed: 3530 cfs at 4:00PM Feb 06, 2023Observed: 3710 cfs at 4:15PM Feb 06, 2023Observed: 3710 cfs at 4:30PM Feb 06, 2023Observed: 3730 cfs at 4:45PM Feb 06, 2023Observed: 3710 cfs at 5:00PM Feb 06, 2023Observed: 3710 cfs at 5:15PM Feb 06, 2023Observed: 3720 cfs at 5:30PM Feb 06, 2023Observed: 3700 cfs at 5:45PM Feb 06, 2023Observed: 3690 cfs at 6:00PM Feb 06, 2023Observed: 3510 cfs at 6:15PM Feb 06, 2023Observed: 3520 cfs at 6:30PM Feb 06, 2023Observed: 3520 cfs at 6:45PM Feb 06, 2023Observed: 3510 cfs at 7:00PM Feb 06, 2023Observed: 3560 cfs at 7:15PM Feb 06, 2023Observed: 3560 cfs at 7:30PM Feb 06, 2023Observed: 3560 cfs at 7:45PM Feb 06, 2023Observed: 3570 cfs at 8:00PM Feb 06, 2023Observed: 3560 cfs at 8:15PM Feb 06, 2023Observed: 3570 cfs at 8:30PM Feb 06, 2023Observed: 3560 cfs at 8:45PM Feb 06, 2023Observed: 3570 cfs at 9:00PM Feb 06, 2023Observed: 3560 cfs at 9:15PM Feb 06, 2023Observed: 3550 cfs at 9:30PM Feb 06, 2023Observed: 3550 cfs at 9:45PM Feb 06, 2023Observed: 3570 cfs at 10:00PM Feb 06, 2023Observed: 3560 cfs at 10:15PM Feb 06, 2023Observed: 3560 cfs at 10:30PM Feb 06, 2023Forecast: 3667.87 cfs 4:00AM Feb 07, 2023Forecast: 3602.76 cfs 10:00AM Feb 07, 2023Forecast: 3628.13 cfs 4:00PM Feb 07, 2023Forecast: 3804.87 cfs 10:00PM Feb 07, 2023Forecast: 4217.95 cfs 4:00AM Feb 08, 2023Forecast: 4804.76 cfs 10:00AM Feb 08, 2023Forecast: 5325.81 cfs 4:00PM Feb 08, 2023Highest Forecast: 5561.31 cfs 10:00PM Feb 08, 2023Forecast: 5512.87 cfs 4:00AM Feb 09, 2023Forecast: 5265.79 cfs 10:00AM Feb 09, 2023Forecast: 4946.02 cfs 4:00PM Feb 09, 2023Forecast: 4612.89 cfs 10:00PM Feb 09, 2023Forecast: 4318.86 cfs 4:00AM Feb 10, 2023Forecast: 4072.05 cfs 10:00AM Feb 10, 2023Forecast: 3903.37 cfs 4:00PM Feb 10, 2023Forecast: 3812.92 cfs 10:00PM Feb 10, 2023Forecast: 3815.74 cfs 4:00AM Feb 11, 2023Forecast: 3887.69 cfs 10:00AM Feb 11, 2023Forecast: 4016.88 cfs 4:00PM Feb 11, 2023Forecast: 4126.45 cfs 10:00PM Feb 11, 2023Forecast: 4183.67 cfs 4:00AM Feb 12, 2023Forecast: 4163.53 cfs 10:00AM Feb 12, 2023Forecast: 4087.32 cfs 4:00PM Feb 12, 2023Forecast: 3972.73 cfs 10:00PM Feb 12, 2023Forecast: 3866.81 cfs 4:00AM Feb 13, 2023Forecast: 3806.8 cfs 10:00AM Feb 13, 2023Forecast: 3833.6 cfs 4:00PM Feb 13, 2023Forecast: 3959.65 cfs 10:00PM Feb 13, 2023USGS--Water Resources of the United StatesCOKW1(plotting QRIRG) Graph Created (11:19PM Feb 6, 2023)ObservedForecast (issued 1:59PM Feb 6)Latest observed value: 3560 cfs at 10:30 PM PST 6-Feb-2023.
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Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
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
KML Image
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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