Document: NUREG-0800
Document ID: b82533b2-f9f2-45b2-bbed-bdbb41b07adb
Document Type: srp
Title: REGIONAL CLIMATOLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340567.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.1
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CFR Title: 

Content:
icant of the severe regional weather phenomena at the site and the surrounding area are acceptable and meet the requirement of 10 CFR Part 50, Appendix A, General Design Criterion 2, "Design Bases for Protection Against Natural Phenomena," with respect to estabishing the design bases for structures, systems, and components important to safety. This conclusion is based on the presentation and sub- stantiation of the severe regional weather phenomena in accordance with acceptable standard practice as promulgated by the National Oceanic and Atmospheric Administration and in industry standards identified in the references hereto. The staff concludes that the identification and consideration of tornadoes are acceptable and meet the requirements of 10 CFR Part 50, Appendix A, General Design Criterion 4, "Environmental and Missile Design Bases," with respect to determining the design basis tornado for the generation of missiles. This conclusion is based on the applicant's conformance with the position set forth in Regulatory Guide 1.76 (Ref. 8). This statement should be preceded by a resume of the general climate and the meteorological design parameters used for the plant. V. IMPLEMENTATION The following is intended to provide guidance to applicants and licensees regarding the NRC staff's plans for using this SRP section. Except in those cases in which the applicant proposes an acceptable alternative method for complying with specified portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of conformance with Commission regulations. Implementation schedules for conformance to parts of the method discussed herein are contained in the referenced regulatory guides. 2.3.1-4 Rev. 2 - July 1981 VI. REFERENCES 1. 10 CFR Part 50, Appendix A, General Design Criterion 2, "Design Bases for Protection Against Natural Phenomena." 2. 10 CFR Part 50, Appendix A, General Design Criterion 4, "Environmental and Missile Design