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Radar on a cell phone
Eric, I suggest that the potential for thunderstorms is fully apparent on days
where a thunderstorm might develop. In fact, the the weather bureau forecasts such, often starting the day before. In addition, thunderstorms develop of a period of time, meaning they are no surprise when they hit. The problem some sailors have is that the winds and such are so nice right up until the storm breaks, so they ignore that it is likely to break in about 30 minutes or whatever. If a boat and/or sailor are not up to the effort, then the sailor should makes plans as how to handle the situation. Thunderstorms can produce winds of 90+ knots for a short period of time. You need to get your sails down and get yourself in a protected from the north cove and/or give yourself a mile or more of searoom to the south. Your trig may be correct as far as the altitude is concerned but practically speaking, you can rarely see anything 300 nm away. I would agree they don't tend to come up on you in 10 minutes but it may take a lot longer than 10 minutes to get to a safe harbor/dock/anchorage. Eric (JAXAshby) wrote in message ... There are lots of places where people sail and it's difficult to see a thunderstorm coming bull****. Thunderstorm clouds go as high as 60,000 feet sometimes, which means they can be seen up to 300 nm away. Even 10,000 foot high clouds can be seen up to 122 nm away. Can't see that coming? And there are many places where the potential exists every day in the summer thunderstorms don't form inside of 30 seconds. You *KNOW* they are coming, if one just pays attention. |
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