Meteorology · Marine Warnings
A 'storm warning' issued by the National Weather Service for non-tropical systems indicates sustained winds of:
- A22-33 knots
- B34-47 knots
- C48-63 knots✓ Correct
- D64 knots or more
Explanation
Storm warning covers 48–63 knots. Below it: gale warning (34–47 kt); above it: hurricane-force wind warning (64 kt+). A small craft advisory is generally issued below 34 kt.
Authority: NWS marine warning definitions
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