Pacific Sail & Power Boat Show

Pacific Sail & Power Boat Show is one of the West Coast's premier shows, featuring new sail and cruising power boats, gear, hardware, seminars, and interactive workshops.

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Differences Between Extra-tropical and Tropical Cyclones (Hurricanes) and Lessons Learned from the El Faro Tragedy Workshop

Date: Sunday, April 22, 2018

Time: 11:45am - 3:45pm

Location: Craneway Seminar Pavilion

Speaker: Lee Chesneau

This 4-hour workshop will discuss the basics of Tropical Cyclones (Hurricanes) & their impacts in the Eastern North Pacific Oceans (from Mexico’s West Coast to Hawaii), the Gulf of Mexico, the North Atlantic Ocean, & sometimes even the Great Lakes. Tropical Cyclones are different in size & dynamics than Extratropical or Middle Latitude Cyclones (both types are Low Pressure Systems). Acknowledging that these named systems do not often impact the coastal & offshore waters of the north America’s west coast (except as a “Post Tropical Cyclone”)  when  compared to eastern north America & especially Extratropical Cyclones, these synoptic scale systems provide challenges to all boaters, especially those boaters that cruise south where these storms are more prevalent, & thus we offer this unique training session to better understand and properly avoid both of mother nature’s most powerful & dangerous phenomenon.

This workshop will specifically address the following topic points:

  • An overview of Tropical Cyclone basics & their unique differences from Middle Latitude Cyclones that clearly dominate the planet.
  • These include their characteristic size, shape & the sensitive environment necessary for formation, intensification, & maintenance, literally day by day, if not hours at a time.
  • The immediate impact areas are the Tropical North Eastern Pacific Oceans, North Atlantic & Gulf of Mexico. but these water domains are also not limitless due to hostile environments that these tropical weather systems encounter frequently; whether transiting over cooler waters or the entertainment of drier air, moving over land, or experiencing strong winds aloft.
  • Sometimes there is a transformation from tropical to “post tropical”, that sometimes results in a new more powerful storm system making them even more dangerous (e.g. the Columbus Day Storm of 1984).
  • There will be an overview of tropical cyclone impacts on the coastal & nearby land interface where boats are frequently not at sea sailing (e.g. marinas & anchorages).
  • More importantly for offshore boaters, the lead time for avoidance & strategies will be different in in time & space than over the coastal areas; thus, we introduce the “1-2-3 Rule” for avoidance, concentrating on the 34 knot wind radii.
  • We will also breakdown the “Tropical Cyclone Message” (TCM) for interpretation, clarity, & application.
  • Finally, there will be a discussion of the tragedy of the container ship El Faro decision making process by not following the 1-2-3 Rule discussed by not properly interpreting TCM just discussed and plotting out the “Danger Area to Avoid” (applying the 1-2-3 Rule for tropical cyclone avoidance).
  • ***It is recommended to attend the “The Surface Pressure Chart Workshop” offered on Thursday, April 19th, 2018 1:00 PM to 4:00 PM & the The 500 Mb Chart Workshop” offered on April 20th, 1145 to 1545 (11:45AM-3:45PM)

Tickets are $49 each.

Seminar Speaker

Lee Chesneau

Lee Chesneau is highly experienced senior marine meteorologist & graduate from one of the elite universities that offer degrees in meteorology, the University of Wisconsin (Madison). His Bachelor of Science (B.S) Degree in Meteorology was Lee’s ticket to a distinguished & extensive career with NOAA’s National Weather Service (NWS) & Satellite Service (NESDIS).  Lee also….

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