In addition, the role, scope of practice, and prescribing authorization of a nurse midwife will vary depending on licensure and where they practice. Certified Nurse Midwife responsibilities may include: 1  Primary and specialty care for women.
Messages: 357. Slack tide is when the current goes slack between tide changes and slack usually last 30min to an hour after peak high tide or peak low tide(hence high slack or low slack). Feb 27, 2008.
Slack tide refers to the time between high and low tides, when the tide is changing. That means there are four a day in most places. During this time the water is relatively calm, because you don't have excess water rushing away (low tide) or toward (high tide) the coast. This makes it particularly significant to shore divers. In many places, slack tide is the only safe time to scuba dive. Diving any other time and either you can't enter the water (high tide) or the water will quickly carry you to sea (low tide). When shore diving a new spot, read up or talk to people and find out if a slack tide entry is considered a must.