ML21187A211
| ML21187A211 | |
| Person / Time | |
|---|---|
| Site: | Westinghouse |
| Issue date: | 10/19/2020 |
| From: | US Dept of Commerce, National Oceanic & Atmospheric Admin, National Weather Service |
| To: | Office of Nuclear Material Safety and Safeguards |
| Trefethen, JA | |
| References | |
| Download: ML21187A211 (1) | |
Text
National Weather Service Advanced Hydrologic Prediction Service https://water.weather.gov/ahps2/hydrograph.php?wfo=cae&gage=CEAS1[10/19/2020 8:30:16 AM]
Printable Image About this graph Tabular Data (UTC)
Tabular Data (EDT)
Datum: NGVD29 Metadata NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> into the future from the forecast issuance time.
NOTE: Gauge reading affected by reservoir operations.
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the Congaree River at Carolina Eastman are issued as needed during times of high water, but are not routinely available.
Default Hydrograph
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Weather Forecast Office Columbia, SC Southeast River Forecast Center Hydrograph River at a Glance Download Probability Information Auto Refresh: OFF Upstream Gauge Downstream Gauge Flood Categories (in feet)
Major Flood Stage:
126 Moderate Flood Stage: 119 Flood Stage:
115 Action Stage:
114 Low Stage (in feet):
0 National Observations WFO Observations Hydrograph Zoom Level:16
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National Weather Service Advanced Hydrologic Prediction Service https://water.weather.gov/ahps2/hydrograph.php?wfo=cae&gage=CEAS1[10/19/2020 8:30:16 AM]
Historic Crests (1) 126.95 ft on 10/12/1976 (2) 126.90 ft on 10/05/2015 (3) 126.90 ft on 02/27/1979 (4) 126.40 ft on 02/09/2020 (5) 126.00 ft on 03/16/1975 Show More Historic Crests (P): Preliminary values subject to further review.
Recent Crests (1) 117.90 ft on 10/13/2020 (2) 116.00 ft on 09/18/2020 (3) 117.10 ft on 05/30/2020 (4) 115.30 ft on 05/29/2020 (5) 123.00 ft on 05/23/2020 Show More Recent Crests (P): Preliminary values subject to further review.
Low Water Records (1) 100.40 ft on 08/26/2007 (2) 100.40 ft on 08/25/2007 (3) 100.50 ft on 06/20/2008 (4) 100.60 ft on 10/03/2007 (5) 100.70 ft on 09/30/2007 Show More Low Water Records Flood Impacts & Photos If you notice any errors in the below information, please contact our Webmaster 131 The floor elevation of some major buildings on the Carolina Eastman Facility are flooded. Extensive farmland and lowland flooding occurs south of Columbia to Lake Marion.
127 Portions of the Carolina Eastman facility have to be evacuated.
126 Extensive farmland and lowland flooding will occur south of Columbia to Lake Marion. Water reaches the top of some dikes at the Carolina Eastman Facility.
124 Extensive flooding occurs at the Carolina Eastman Facility with some access roads flooded. Extensive farmland flooding occurs in the area.
119 Extensive flooding occurs in the Congaree National Park. Some area farmland is flooded. Minor flooding occurs at the Carolina Eastman Facility.
115 Flooding occurs in low lying areas of the Carolina Eastman Facility and at the Congaree National Park.
About This Location Latitude: 33.875833° N, Longitude: 81.016111° W, Horizontal Datum:
Unknown River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 115 ft Interpreting hydrographs and NWS
- watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation Elevation Elevation Gauge Location 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.
Esri, HERE, Garmin, INCREM
National Weather Service Advanced Hydrologic Prediction Service https://water.weather.gov/ahps2/hydrograph.php?wfo=cae&gage=CEAS1[10/19/2020 8:30:16 AM]
(gauge height = 0)
(gauge height = flood stage) information source NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 0 ft 115 ft Older USGS topographic
- maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available
Additional Information Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels 10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Click individual graphics to enlarge.
Data courtesy of the Dak Americas.
Resources Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations WFO Columbia SC Drought Information Page Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Southeast River Forecast Center Snow Information Weather Observations Precipitation Analysis Ensemble River Forecasts Temperature and Precipitation Report Hourly Precipitation 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.
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