Presented by  

10:15 AM - 1:15 PM

Lee Chesneau

The 500 Mb Chart Workshop (3-hour workshop)


Vancouver Boat Show
10:15 AM - 1:15 PM - SUNDAY, JANUARY 22, 2017
Room 147 / VIP Room, located on the main field level of BC Place

Seminar Details

We broke down the different components of the upper-level (air) 500 mb chart, from the earlier free seminar “Introduction to the 500 mb Chart” . Now we go into deeper discussion to further your understanding for self-reliant marine weather forecasting & routing. Specifically: Identifying upper level troughs & ridges as depicted on 500 mb charts. How 500 mb controls sea-level surface low & high pressure systems (e.g., 500 mb influences as to where surface low & high pressure weather systems originate, intensify, weaken, & move). Discussion & illustration of what a weather pattern is, & how to identify & recognize the four (4) basic 500 mb flow patterns (two of them depicted below). Develop a culture of routinely accessing both 500 mb & their companion at sea-level surface pressure charts, & annotating specific features that will allow one to clearly see their connected inter-relationships. Introduce the A.B, C, & D zones associated with a 500 mb chart & applied in the “ Understanding Weather & Cruise Decision Making Workshop”, as discussed in detail in Heavy Weather Avoidance Prerequisite: attend the free seminar “Introduction to the 500 Mb Chart.”...

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About Lee Chesneau

Lee Chesneau is a senior marine meteorologist, lecturer, & author. He is a graduate from the University of Wisconsin (Madison) where he earned a B.S. Degree in Meteorology.  Lee had a distinguished & extensive career with NOAA’s National Weather Service (NWS) & Satellite Service. He also served as naval officer in the U.S. Navy, a “Route Analyst” for a commercial weather & ship routing company. Today, Lee is an accomplished U.S. Coast Guard certified instructor for basic and advanced meteorology at number of continuing training institutions for professional mariners. He offers the same curriculum to educate & train recreational boaters on becoming self-reliant in their own marine weather knowledge for application in marine weather forecasting & strategic vessel routing.  See his webpage www.weatherbylee.com.   He can be reached by e-mail: lee@weatherbylee.com .


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