Linear Precipitation Zone (LPZ)
A Linear Precipitation Zone (LPZ) is a narrow band of intense precipitation that forms along a line or arc. LPZs are typically associated with mesoscale convective systems, such as squall lines and bow echoes.
LPZs are characterized by their high rainfall rates, which can exceed 100 mm (4 inches) per hour. They can also produce hail, lightning, and strong winds. LPZs are often associated with severe weather, such as tornadoes and floods.
LPZs form when a line of thunderstorms develops along a boundary between two air masses with different temperatures and moisture content. The warm, moist air rises along the boundary, while the cold, dry air sinks. This creates a strong updraft that can produce intense precipitation.
LPZs can move rapidly, at speeds of up to 60 km/h (37 mph). They can also be very long, stretching for hundreds of kilometers.
LPZs can cause significant damage to property and infrastructure. They can also lead to flooding and landslides.
How to stay safe during an LPZ:
- If you are in the path of an LPZ, seek shelter indoors immediately.
- Stay away from windows and doors.
- If you are driving, pull over to the side of the road and stop. Do not drive through an LPZ.
- Listen to local weather reports for updates on the storm’s progress.
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Please search for “線状降水帯” which is rapidly rising on Google Trends JP and explain in detail. Answers should be in English.
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