Mr. lee's expository writing class (kayak1)

Race #59230

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Official speed 109.19 wpm (44.29 seconds elapsed during race)
Race Start November 9, 2017 10:23:52pm UTC
Race Finish November 9, 2017 10:24:36pm UTC
Outcome Win (1 of 2)
Opponents 2. pubst0mp (80.59 wpm)
Accuracy 97.0%
Points 118.29
Text #3622192 (Length: 403 characters)

Valley (or graben) breezes and mountain breezes are a very localized phenomenon. They relate directly to daily temperature variations between summits and bases. Since it is in the highest reaches that the maximum diurnal range is attained, it is the summits which drive the mechanism. Nights in the mountains are colder than those in the valleys below, especially if moist air collects in those valleys.