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Hydrograph River at a Glance Download
Arroyo Grande Creek at 22nd Street Bridge Stage (ft)Highest Observation: 24.57 ft at 7:26PM Apr 16, 2024Observed: 24.52 ft at 7:41PM Apr 16, 2024Observed: 24.47 ft at 9:26PM Apr 16, 2024Observed: 24.46 ft at 10:11PM Apr 16, 2024Observed: 24.4 ft at 11:56PM Apr 16, 2024Observed: 24.44 ft at 12:11AM Apr 17, 2024Observed: 24.41 ft at 12:56AM Apr 17, 2024Observed: 24.42 ft at 1:11AM Apr 17, 2024Observed: 24.41 ft at 1:26AM Apr 17, 2024Observed: 24.35 ft at 3:41AM Apr 17, 2024Observed: 24.31 ft at 4:56AM Apr 17, 2024Observed: 24.36 ft at 5:26AM Apr 17, 2024Observed: 24.32 ft at 5:41AM Apr 17, 2024Observed: 24.34 ft at 5:56AM Apr 17, 2024Observed: 24.33 ft at 7:26AM Apr 17, 2024Observed: 24.31 ft at 7:41AM Apr 17, 2024Observed: 24.31 ft at 8:41AM Apr 17, 2024Observed: 24.24 ft at 2:11PM Apr 17, 2024Observed: 24.23 ft at 2:56PM Apr 17, 2024Observed: 24.2 ft at 3:56PM Apr 17, 2024Observed: 24.16 ft at 4:41PM Apr 17, 2024Observed: 24.12 ft at 5:11PM Apr 17, 2024Observed: 24.14 ft at 5:26PM Apr 17, 2024Observed: 24.09 ft at 7:41PM Apr 17, 2024Observed: 24.04 ft at 9:56PM Apr 17, 2024Observed: 24.03 ft at 10:41PM Apr 17, 2024Observed: 23.98 ft at 1:26AM Apr 18, 2024Observed: 24 ft at 2:56AM Apr 18, 2024Observed: 23.99 ft at 3:11AM Apr 18, 2024Observed: 23.99 ft at 3:26AM Apr 18, 2024Observed: 23.99 ft at 5:26AM Apr 18, 2024Observed: 23.98 ft at 6:56AM Apr 18, 2024Observed: 23.97 ft at 7:11AM Apr 18, 2024Observed: 23.98 ft at 8:26AM Apr 18, 2024Observed: 23.93 ft at 11:26AM Apr 18, 2024Observed: 23.91 ft at 12:41PM Apr 18, 2024Observed: 23.91 ft at 2:11PM Apr 18, 2024Observed: 23.88 ft at 2:26PM Apr 18, 2024Observed: 23.89 ft at 2:41PM Apr 18, 2024Observed: 23.84 ft at 4:11PM Apr 18, 2024Observed: 23.78 ft at 5:56PM Apr 18, 2024Observed: 23.74 ft at 7:41PM Apr 18, 2024Observed: 23.73 ft at 8:26PM Apr 18, 2024Observed: 23.74 ft at 8:41PM Apr 18, 2024Observed: 23.72 ft at 9:56PM Apr 18, 2024Observed: 23.73 ft at 10:11PM Apr 18, 2024Observed: 23.7 ft at 10:56PM Apr 18, 2024Observed: 23.7 ft at 11:56PM Apr 18, 2024Observed: 23.7 ft at 12:11AM Apr 19, 2024Observed: 23.69 ft at 12:41AM Apr 19, 2024Observed: 23.66 ft at 1:26AM Apr 19, 2024Observed: 23.67 ft at 2:26AM Apr 19, 2024Observed: 23.65 ft at 3:41AM Apr 19, 2024Observed: 23.66 ft at 4:56AM Apr 19, 2024Observed: 23.66 ft at 5:11AM Apr 19, 2024Observed: 23.66 ft at 5:41AM Apr 19, 2024Observed: 23.64 ft at 6:41AM Apr 19, 2024Observed: 23.63 ft at 8:26AM Apr 19, 2024Observed: 23.65 ft at 9:11AM Apr 19, 2024Observed: 23.64 ft at 9:56AM Apr 19, 2024Observed: 23.64 ft at 11:11AM Apr 19, 2024Observed: 23.62 ft at 11:41AM Apr 19, 2024Observed: 23.63 ft at 12:56PM Apr 19, 2024Observed: 23.63 ft at 1:26PM Apr 19, 2024Observed: 23.63 ft at 1:41PM Apr 19, 2024Observed: 23.61 ft at 2:11PM Apr 19, 2024Observed: 23.6 ft at 2:56PM Apr 19, 2024Observed: 23.57 ft at 4:56PM Apr 19, 2024Observed: 23.57 ft at 5:11PM Apr 19, 2024Observed: 23.57 ft at 6:11PM Apr 19, 2024Observed: 23.54 ft at 8:26PM Apr 19, 2024Observed: 23.53 ft at 10:11PM Apr 19, 2024Observed: 23.53 ft at 10:56PM Apr 19, 2024Observed: 23.53 ft at 11:26PM Apr 19, 2024Observed: 23.52 ft at 11:41PM Apr 19, 2024Observed: 23.52 ft at 11:56PM Apr 19, 2024Observed: 23.51 ft at 12:11AM Apr 20, 2024Observed: 23.5 ft at 12:56AM Apr 20, 2024Observed: 23.53 ft at 1:11AM Apr 20, 2024Observed: 23.51 ft at 2:56AM Apr 20, 2024Observed: 23.5 ft at 3:26AM Apr 20, 2024Observed: 23.5 ft at 3:56AM Apr 20, 2024Observed: 23.51 ft at 5:11AM Apr 20, 2024Observed: 23.47 ft at 9:56AM Apr 20, 2024Observed: 23.46 ft at 11:11AM Apr 20, 2024Observed: 23.47 ft at 11:56AM Apr 20, 2024Observed: 23.47 ft at 12:41PM Apr 20, 2024Observed: 23.45 ft at 2:41PM Apr 20, 2024Observed: 23.45 ft at 3:11PM Apr 20, 2024Observed: 23.43 ft at 4:11PM Apr 20, 2024Observed: 23.42 ft at 5:26PM Apr 20, 2024Observed: 23.4 ft at 6:41PM Apr 20, 2024Observed: 23.34 ft at 12:11AM Apr 21, 2024Observed: 23.34 ft at 4:11AM Apr 21, 2024Observed: 23.36 ft at 5:56AM Apr 21, 2024Observed: 23.36 ft at 6:11AM Apr 21, 2024Observed: 23.37 ft at 6:41AM Apr 21, 2024Observed: 23.37 ft at 8:26AM Apr 21, 2024Observed: 23.36 ft at 9:26AM Apr 21, 2024Observed: 23.38 ft at 10:56AM Apr 21, 2024Observed: 23.39 ft at 11:56AM Apr 21, 2024Observed: 23.32 ft at 2:11PM Apr 21, 2024Observed: 23.31 ft at 3:11PM Apr 21, 2024Observed: 23.26 ft at 5:11PM Apr 21, 2024Observed: 23.25 ft at 8:26PM Apr 21, 2024Observed: 23.24 ft at 9:41PM Apr 21, 2024Observed: 23.24 ft at 9:56PM Apr 21, 2024Observed: 23.22 ft at 11:11PM Apr 21, 2024Observed: 23.23 ft at 1:11AM Apr 22, 2024Observed: 23.21 ft at 1:26AM Apr 22, 2024Observed: 23.22 ft at 1:56AM Apr 22, 2024Observed: 23.21 ft at 2:11AM Apr 22, 2024Observed: 23.21 ft at 2:26AM Apr 22, 2024Observed: 23.21 ft at 3:11AM Apr 22, 2024Observed: 23.2 ft at 4:41AM Apr 22, 2024Observed: 23.22 ft at 5:41AM Apr 22, 2024Observed: 23.2 ft at 6:11AM Apr 22, 2024Observed: 23.21 ft at 7:56AM Apr 22, 2024Observed: 23.21 ft at 10:56AM Apr 22, 2024Observed: 23.19 ft at 12:11PM Apr 22, 2024Observed: 23.2 ft at 12:56PM Apr 22, 2024Observed: 23.19 ft at 2:11PM Apr 22, 2024Observed: 23.19 ft at 2:26PM Apr 22, 2024Observed: 23.17 ft at 5:26PM Apr 22, 2024Observed: 23.17 ft at 6:11PM Apr 22, 2024Observed: 23.18 ft at 6:26PM Apr 22, 2024Observed: 23.16 ft at 6:41PM Apr 22, 2024Observed: 23.17 ft at 8:26PM Apr 22, 2024Observed: 23.16 ft at 8:41PM Apr 22, 2024Observed: 23.15 ft at 10:11PM Apr 22, 2024Observed: 23.14 ft at 1:11AM Apr 23, 2024Observed: 23.12 ft at 1:26AM Apr 23, 2024Observed: 23.13 ft at 1:41AM Apr 23, 2024Observed: 23.14 ft at 4:11AM Apr 23, 2024Observed: 23.13 ft at 4:56AM Apr 23, 2024Observed: 23.13 ft at 6:56AM Apr 23, 2024Observed: 23.13 ft at 7:11AM Apr 23, 2024Observed: 23.13 ft at 9:11AM Apr 23, 2024Observed: 23.11 ft at 11:56AM Apr 23, 2024Observed: 23.1 ft at 2:11PM Apr 23, 2024Observed: 23.1 ft at 2:41PM Apr 23, 2024Observed: 23.09 ft at 2:56PM Apr 23, 2024Observed: 23.07 ft at 4:41PM Apr 23, 2024Observed: 23.07 ft at 5:56PM Apr 23, 2024Observed: 23.07 ft at 6:11PM Apr 23, 2024Observed: 23.06 ft at 6:26PM Apr 23, 2024Observed: 23.05 ft at 7:11PM Apr 23, 2024Observed: 23.05 ft at 7:41PM Apr 23, 2024Observed: 23.05 ft at 8:26PM Apr 23, 2024Observed: 23.04 ft at 8:41PM Apr 23, 2024Observed: 23.03 ft at 9:41PM Apr 23, 2024Observed: 23.03 ft at 10:11PM Apr 23, 2024Observed: 23.04 ft at 12:26AM Apr 24, 2024Observed: 23.03 ft at 12:41AM Apr 24, 2024Observed: 23.02 ft at 1:11AM Apr 24, 2024Observed: 23.04 ft at 2:26AM Apr 24, 2024Observed: 23.04 ft at 3:11AM Apr 24, 2024Observed: 23.02 ft at 4:11AM Apr 24, 2024Observed: 23.03 ft at 4:26AM Apr 24, 2024Observed: 23.03 ft at 6:11AM Apr 24, 2024Observed: 23.03 ft at 6:56AM Apr 24, 2024Observed: 23.04 ft at 8:11AM Apr 24, 2024Observed: 23.04 ft at 8:26AM Apr 24, 2024Observed: 23.04 ft at 8:41AM Apr 24, 2024Observed: 23.05 ft at 9:11AM Apr 24, 2024Observed: 23.02 ft at 10:26AM Apr 24, 2024Observed: 23 ft at 2:41PM Apr 24, 2024Observed: 23.01 ft at 2:56PM Apr 24, 2024Observed: 22.99 ft at 4:11PM Apr 24, 2024Observed: 22.98 ft at 5:26PM Apr 24, 2024Observed: 23 ft at 5:41PM Apr 24, 2024Observed: 22.96 ft at 10:26PM Apr 24, 2024Observed: 22.95 ft at 10:41PM Apr 24, 2024Observed: 22.96 ft at 11:26PM Apr 24, 2024Observed: 22.96 ft at 12:26AM Apr 25, 2024Observed: 22.95 ft at 12:56AM Apr 25, 2024Observed: 22.96 ft at 1:26AM Apr 25, 2024Observed: 22.95 ft at 1:56AM Apr 25, 2024Observed: 22.95 ft at 2:26AM Apr 25, 2024Observed: 22.95 ft at 3:11AM Apr 25, 2024Observed: 22.95 ft at 4:11AM Apr 25, 2024Observed: 22.95 ft at 4:41AM Apr 25, 2024Observed: 22.94 ft at 5:11AM Apr 25, 2024Observed: 22.95 ft at 5:26AM Apr 25, 2024Observed: 22.95 ft at 5:56AM Apr 25, 2024Observed: 22.96 ft at 6:11AM Apr 25, 2024Observed: 22.97 ft at 6:26AM Apr 25, 2024Observed: 22.96 ft at 8:41AM Apr 25, 2024Observed: 22.97 ft at 9:26AM Apr 25, 2024Observed: 22.98 ft at 9:41AM Apr 25, 2024Observed: 22.95 ft at 11:56AM Apr 25, 2024Observed: 22.96 ft at 1:11PM Apr 25, 2024Observed: 22.95 ft at 2:41PM Apr 25, 2024Observed: 22.92 ft at 4:11PM Apr 25, 2024San Luis Obispo County Public WorksAGGC1(plotting HGIRR) Graph Created (5:11PM Apr 25, 2024)ObservedLatest observed value: 22.92 ft at 4:11 PM PDT 25-Apr-2024.
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Tabular Data (UTC)
Tabular Data (PDT)
XML Data
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Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Arroyo Grande Creek at 22nd Street Bridge. During times of high water, forecast crest information can be found in the text products.
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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 29
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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Gauge LocationGauge Map Marker
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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: 35.095556° N, Longitude: 120.607222° 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  
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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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