OUPV & 100-Ton Master · Weather
A steady fall in barometric pressure most commonly indicates:
- AImproving, fair weather approaching
- BApproaching unsettled or deteriorating weather, often with stronger winds✓ Correct
- CNo change in conditions
- DA rise in air temperature only
Explanation
A falling barometer signals approaching low pressure and generally worsening weather and increasing wind. A rising barometer suggests building high pressure and improving conditions. Rate of change matters: a rapid fall warns of a strong system.
Authority: Bowditch (Pub. 9), weather; NWS
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