moderate gale, near gale - wind moving 32-38 knots; 7 on the Beaufort scale

fresh gale - wind moving 39-46 knots; 8 on the Beaufort scale

strong gale - wind moving 47-54 knots; 9 on the Beaufort scale

whole gale - wind moving 55-63 knots; 10 on the Beaufort scale

air current, current of air, wind - air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure; "trees bent under the fierce winds"; "when there is no wind, row"; "the radioactivity was being swept upwards by the air current and out into the atmosphere"