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Maritime Polar Air Mass

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Weather

An air mass characterized by cold, moist air. Abbreviated mP.

NOAA National Weather Service — National Weather Service Glossary

Related Weather terms

A AMS
Air Mass
AMS
Atmospheric Pressure
C AMS
CENTROID
Continental Air Mass
K AMS
Marine Push
Maritime Air Mass
Maritime Tropical Air Mass
Polar Front
Specific Humidity

Nearby Weather terms

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Definitions are reproduced with attribution to their original sources; each entry links to the source and shows when it was retrieved. About · FAQ · Data build 2026-10-15.