1. The blocking high formed near Greenland this week and then drifted toward Canada. 2. Greenland is a favored place for blocking highs to form. 3. Sometimes the west-to-east flow of the jet stream is halted by a blocking high . 4. However, in most of New South Wales this blocking high produced uninterrupted dry weather. 5. Low-pressure systems stagnate in the vicinity of a blocking high , setting the stage for protracted precipitation. 6. The slow chill in Rapid City came courtesy of a blocking high pressure system over northern Canada. 7. A series of blocking high pressure systems over Canada diverted a branch jet stream southward over the nation. 8. This week, the Pacific jet stream was diverted south by a blocking high pressure system over western Canada. 9. An arctic air mass has been trapped across interior Alaska by a blocking high -pressure system over the Bering Sea. 10. Awnings can add shade by blocking high -angle sunlight and are most effective on the south side of a building.
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