North American monsoon (Q845)
Subject, term, tag: North American monsoon
- North American monsoon (NAmerM)
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | North American monsoon |
Subject, term, tag: North American monsoon |
|
Statements
IPCC Glossary v1.5
1 reference
27 May 2026
The North American monsoon (NAmerM) is a regional-scale atmospheric circulation system with increases in summer precipitation over northwestern Mexico and southwest United States. The monsoonal characteristics of the region include a pronounced annual maximum of precipitation in boreal summer (June–July–August) accompanied by a surface low pressure system and an upper-level anticyclone, although seasonal reversal of the surface winds is primarily limited to the northern Gulf of California. Further details on how NAmerM is defined and used throughout the Report are provided in Annex V. (English)
IPCC Glossary v1.5
1 reference
27 May 2026