Document: NUREG-0800
Document ID: 0813f466-de60-43e2-b553-09bee4be75d9
Document Type: srp
Title: LOCAL METEOROLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070229.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.2
CFR Part: 
CFR Title: 

Content:
ther standard installation summaries from appropriate nearby locations should be presented as specified in Regulatory Guide 1.70, Section 2.3.2. 2. A complete topographical description of the site and environs out to a distance of 50 miles 80 km (mi) from the plant, as described in Regulatory Guide 1.70, Section 11 2.3.2.2, should be provided. 3. A discussion and evaluation of the influence of the plant and its facilities on the local meteorological and air quality conditions should be provided. A discussion of potential changes in the normal and extreme values as presented in the SAR safety analysis report (SAR) resulting from plant construction and operation should be made. The 12 2.3.2-3 DRAFT Rev. 3 - April 1996 acceptability of the information is determined through comparison with standard assessments. Technical Rationale13 The technical rationale for application of the above acceptance criteria is discussed in the following paragraphs:14 1. Compliance with GDC 2 requires that nuclear power plant structures, systems, and components important to safety be designed to withstand the effects of natural phenomena such as snow, ice, earthquake, tornado, hurricane, flood, tsunami, and seiche without loss of their safety functions. To ensure that the nuclear plant is designed to withstand specified natural phenomena associated with the local meteorology, it is necessary to identify the most severe local weather phenomena reported for the site and its surrounding area. Thus, historical data must be obtained on snow and ice load; meteorological conditions affecting the ultimate heat sink; tornado parameters; wind speed; rainfall and freezing rain; and dust, sand, and atmospheric pollution. To meet GDC 2 requirements for all meteorological phenomena, these data (as well as the regional meteorological data from Standard Review Plan (SRP) Section 2.3.1) are used to specify design requirements for structures, systems, or components of the nuclear plant that may be affected