Heavy flag doesn't fully extend but flaps over entire length. 22 - 27 Wind stings face in temperature below 35 o F. Slight effort in maintaining balance against the wind. Smoke rises at 15 o . Both slack and taut halyards whip slightly in bent position. Low moaning, rather than whistle, in rigging.
Heavy flag extends and flaps more vigorously.
28 - 33 Necessary to lean slightly into the wind to maintain balance. Smoke rise at 5 o to 10 o . Higher pitched moaning and whistling heard from rigging. Halyards whip slightly. Heavy flag extends fully and flaps only at the end.