[S]ometimes it may happen that ſuch a Cloud may appear ſeveral Mornings and Evenings, and we may not feel the effects of it, or but very little; yet we always provide againſt it; for a North never comes without ſuch a foreboding Cloud. But if the VVinds also vvhiffle about to the South, with fair flattering VVeather, it never fails.
Source: wiktionary