At Toyama prefecture, there are many proverbs about weather forecasts, which are connecting with the view of Tateyama high mountains. As the altitudes of the mountains are about 2,000-3,000m, it may have many influences for the weather of Toyama area. We observed fine weather condition, when Tateyama had a good view from Toyama plain at daytime. In the night and the next day, the weather condition turned to rain or snow. For the theoritical analysis of these weather changes, we checked some upper-air chart, 500hPa, 700hPa and 850hPa. As a result, it has been guessed for that a local cold high has caused the airflows, which would arise such conditions at the plain near the mountains.
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