| 21. | After producing heavy rains, the system was absorbed by a frontal system on October 14.
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| 22. | Late on October 16, the cyclone was absorbed by a frontal system over southwestern Arkansas.
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| 23. | The storm then merged with a frontal system over West Virginia during the following day.
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| 24. | A complex frontal system will approach the Northwest Coast.
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| 25. | Shortly afterwards, the remnants of the depression were absorbed into a frontal system on September 2.
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| 26. | Breezes from the southwest ahead of a frontal system will draw milder air into the Northeast.
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| 27. | Low pressure will organize along a complex frontal system on Thursday in the southern Plains states.
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| 28. | A complex frontal system will cross the Rockies.
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| 29. | Andrew originated from a tropical wave over the central frontal system over the southern Appalachian Mountains.
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| 30. | Sometimes collapsed frontal systems will degenerate into troughs.
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