The weather associated with a warm front occurs primarily ahead of the front in the cooler air. It is primarily stratiform and continuous. Cumuliform clouds and thunderstorms can also be embedded in these clouds. Visibility is poor before passage and improves only slightly afterwards. Pressures fall gradually ahead of the front. Surface pressure can rise slowly or become steady after passage, but will fall again as the following cold front approaches. Surface winds are usually from the southeast before passage, and rotate clockwise to become gusty southwest after passage (veering winds).