Document: NUREG-0800
Document ID: fc11b179-5899-46ec-9add-723cad9f6565
Document Type: srp
Title: PROBABLE MAXIMUM SURGE AND SEICHE FLOODING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730425.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.5
CFR Part: 
CFR Title: 

Content:
pical cyclone that might result from the most severe combination of meteorological storm parameters that is considered reasonably possible in the region involved. 4 Seiche is an extreme sloshing of an enclosed or partially enclosed body of water excited by meteorological causes (e.g., barometric fluctuations, storm surges, and variable winds), interaction of wave trains with geometry and bathymetry of the water body (e.g., from tsunamis), and seismic causes (e.g., a local seismic displacement resulting in sloshing of the water body). 2.4.5-2 Revision 3 - March 2007 1. Probable Maximum Hurricane. Probable maximum hurricane1 (PMH) that causes the probable maximum surge2 as it approaches the site along a critical path at an optimum rate of movement. 2. Probable Maximum Wind Storm. Probable maximum wind storm3 (PMWS) from a hypothetical extratropical cyclone or a moving squall line that approaches the site along a critical path at an optimum rate of movement. 3. Seiche and Resonance. Seiche4 near the site and the potential for seiche wave oscillations at natural periodicity of a water body that may affect flood water surface elevation near the site or cause low water surface elevation affecting safety-related water supplies. 4. Wave Runup. Wind-induced wave runup under PMH or PMWS winds. 5. Effects of Sediment Erosion and Deposition. Effects of sediment erosion and deposition during storm surge and seiche-induced waves that may result in blockage or loss of function of SSC important to safety. 6. Consideration of Other Site-Related Evaluation Criteria. The potential effects of seismic and non-seismic information on the postulated design bases and how they relate to surge and seiche in the vicinity of the site and the site region. 7. Additional Information for 10 CFR Part 52 Applications. Additional information will be presented dependent on the type of application. For a COL application, the additional information is dependent on whether the application references an