---
title: "CONVECTIVE SIGMET — aviation glossary — OnlyPlanes"
description: "A weather advisory concerning convective weather significant to the safety of all aircraft."
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  "og:title": "CONVECTIVE SIGMET — aviation glossary"
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> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Operations

# CONVECTIVE SIGMET

TERM · Operations

At a glance

## Meaning of CONVECTIVE SIGMET

A weather advisory concerning convective weather significant to the safety of all aircraft.

### More about CONVECTIVE SIGMET

A weather advisory concerning convective weather significant to the safety of all aircraft. Convective SIGMETs are issued for tornadoes, lines of thunderstorms, embedded thunderstorms of any intensity level, areas of thunderstorms greater than or equal to VIP level 4 with an area coverage of 4 / 10 (40%) or more, and hail 3 / 4 inch or greater.

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