It's all a matter of scale. there's a meteorological definition of "gust" on the www.

"Definition[edit]The wind is measured using an anemometer or estimated with a windsock. The average value of the latter is generally measured over a period of 2 minutes before the meteorological observation according to the World Meteorological Organization. Any significant variation at this mean wind during the ten minutes preceding the observation are noted as gusts in messages such as METAR.[2]It is generally reported in METAR when the peak wind speed reaches at least 16 knots and the variation in wind speed between the peaks and average wind is at least 9 to 10 knots.[1][3] In marine meteorology, the top speed of a burst is expressed in meters per second (m/s) or in knots, while the Beaufort scale is used for reporting the mean speed. When the maximum speed exceeds the average speed by 10 to 15 knots, the term gusts is used while strong gusts is used for departure of 15 to 25 knots, and violent gusts when it exceeds 25 knots.[3]. "

These boats are sailing in puffs




"puff of wind
(meteorology)
A slight local breeze which causes a patch of ripples on the surface of the sea.McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright ? 2003 by The McGraw-Hill Companies, Inc."