| 1. | Although thunderstorm activity was initially minimal around the center of subtropical ridge.
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| 2. | Initially poorly organized, Pat headed east-northeast, south of a subtropical ridge.
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| 3. | Alpha was tracking along the southwest edge of a subtropical ridge.
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| 4. | With the subtropical ridge to the northeast, the nascent system moved northwestward initially.
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| 5. | The nascent system tracked generally west-northwestward around a subtropical ridge to its north.
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| 6. | The subtropical ridge also helps form most of the world's deserts.
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| 7. | Situated to the south of a subtropical ridge, the storm tracked west-northwestward to northwestward.
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| 8. | Nelson tracked westward, staying south of a large subtropical ridge.
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| 9. | Situated to the south of a strong subtropical ridge, the depression tracked rapidly westward.
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| 10. | The storm moved northwestward until a weakness in the subtropical ridge forced it eastward.
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