Storm Warning Signals Flags: Nautical & Marine Flags

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On-line Flag Catalog > Nautical & Marine Flags > U.S. STORM SIGNALS FLAGS

When using Weather Pennants they appear either individually or as doubles.
When displayed as a pair, they indicate a more severe warning.

          A Single Strong Wind Pennant : Small craft warning up to 38 mph winds
          Double Strong Wind Pennant :   Gale warning 39 - 54 mph
          A Single Storm Pennant :           Storm Warning 55 - 73 mph winds.
          Double Storm Pennant:              Hurricane Warning 74 + mph winds.