Assertion: wave's wind | /r/HasProperty | 50 knots
Facets:
Source sentences:
text: Get meteorological and oceanic data from weather buoys in region Storm pressure 964 mbar, winds 50 knots, fetch 1200-1500 miles, duration only 24 hrs, not enough for a fully developed sea Swell 30 ft, period 12 seconds Wave velocity = 40 mph, group velocity = 20 mph