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Awareness Of Environmental Conditions
Weather and Water Conditions
You should never leave the dock without first checking the local weather forecast and water conditions. Checking these conditions prior to leaving the dock is just as important in planning your trip as checking for fuel and required equipment. Special attention to weather and weather indicators can make the difference in a pleasant day on the water and potential disaster.
As Skipper, it is your sole responsibility to determine, from the conditions, your skill level and the boat's capabilities, when to cancel or alter your trip.
You can get weather and water conditions from the Internet, TV, radio or from one of the weather channels on your VHF radio. At certain times of the year, weather can change rapidly and you should continually keep a "weather eye" out in order to foresee changes which might be impending.
Certain signs you can look for indicate an approaching weather change:
- Although weather changes generally come from the west, you should be observant of weather from all directions, so scan the sky with your weather eye, especially to the west.
- A sudden drop in temperature and change in the wind often mean that a storm is near.
- If you have a barometer on your boat, check it every two to three hours. A rapid drop in pressure means a storm is approaching.
- Watch for cloud build up, especially rapid, vertically rising clouds. Be alert for the sound of thunder.
- Watch for lightning and rough water. Remember that boats, particularly sailboats, are vulnerable to lightning if not grounded.
- Fog can create problems in inlets and bays or open water. Fog typically forms during temperature changes in early morning or evening hours and can persist for long periods.
- If your weather service has indicated that a hurricane is imminent, you should not leave the dock - period. Approaching hurricanes can be identified by the "feeder bands" of rain that proceed them by 24-48 hours.
National Weather Service Storm Advisories
|Small Craft Advisory
Winds up to 38 mph
Up to 73 mph
Winds over 74 mph
IF A STORM IS NEAR…
- First and foremost, make sure all aboard are wearing USCG approved PFDs.
- Reduce speed and proceed with caution.
- Close all hatches and ports.
- Head for the nearest shore that is safe to approach and duck into the lee of land.
- Put the bow into the wind and waves at about a 40 degree angle and watch for floating debris.
- Pump out bilges and keep dry.
- Change to a full fuel tank.
- Secure loose items that could be tossed about.
- Keep everyone low in the boat and near the centerline.
- Minimize the danger of having your boat struck by lightning by seeking shelter in advance of a storm. If caught on open water during a thunderstorm, stay low in the middle of the boat.
- If there is lightning, disconnect all electrical equipment. Stay as clear of metal objects as possible.
- If caught in fog, be sure to sound the appropriate sound signals.
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