Meteorology · Stability
Stable air, in which vertical motion is suppressed, tends to produce:
- ALayered (stratiform) clouds, fog, and poor visibility✓ Correct
- BTowering cumulus and thunderstorms
- CHail and waterspouts
- DClear skies with strong vertical gusts
Explanation
When air is stable it resists rising, so moisture spreads into flat stratus layers and fog with steady conditions. Unstable air rises freely, building cumuliform clouds, showers, and thunderstorms.
Authority: Bowditch (Pub. No. 9)
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