warm pool

From Glossary of Meteorology
(Also called warm drop, warm-air drop.) A region, or "pool," of relatively warm air surrounded by colder air; the opposite of a cold pool.

The common application of this term is to warm air of appreciable vertical extent isolated in high latitudes when a cut-off high is formed. Warm pools can be identified as thickness maxima on thickness charts.

Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.