Document: NUREG-0800
Document ID: 332f67ca-c2d9-4259-bbfb-485a47724ddc
Document Type: srp
Title: REGIONAL CLIMATOLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600393.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.1
CFR Part: 
CFR Title: 

Content:
re as follows for the review described in this SRP section. The SRP is not a substitute for the NRC's regulations, and compliance with it is not required. However, an applicant is required to identify differences between the design features, analytical techniques, and procedural measures proposed for its facility and the SRP acceptance criteria and evaluate how the proposed alternatives to the SRP acceptance criteria provide acceptable methods of compliance with the NRC regulations. Generally, the information should be presented and substantiated in accordance with acceptable practice and data as promulgated by the National Oceanic and Atmospheric Administration (NOAA), industry standards, and regulatory guides. 1. The description of the general climate of the region should be based on standard climatic summaries compiled by NOAA (e.g., References 5, 6). Consideration of the relationships between regional synoptic-scale atmospheric processes and local (site) meteorological conditions should be based on appropriate meteorological data (e.g., References 6, 7). 2. Data on severe weather phenomena should be based on standard meteorological records from nearby representative National Weather Service (NWS), military, or other stations recognized as standard installations that have long periods of data on record (e.g., References. 6, 7, 8). The applicability of these data to represent site conditions during the expected period of reactor operation should be substantiated. 3. The tornado parameters should be based on Regulatory Guide 1.76 (Reference 9). Alternatively, an applicant may specify any tornado parameters that are appropriately justified, provided that a technical evaluation of site-specific data is conducted. Any deviations from Regulatory Guide 1.76 should be identified by the applicant. 4. The basic (straight-line) 100-year return period 3-second gust wind speed should be based on appropriate standards, with suitable corrections for local conditions (e.g.,