CLIMATOLOGICAL SUMMARIES, VISIBILITIES BELOW 1/2 MILE AND CEILINGS BELOW 200 FEET. VOLUME 33. PORTLAND, OREGON. PORTLAND INTERNATIONAL AIRPORT
NATIONAL WEATHER RECORDS CENTER ASHEVILLE NC
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The report consists of climatological data for Portland International Airport, Portland, Oregon. Ceiling, visibility, wind, and weather information are grouped by various periods of the day and by various temperature and wind categories. Various weather and landing system categories are tabulated, in most cases from 10 years of data, as aids for making decisions affecting landing systems and fog dissipation.
- Air Navigation and Guidance