Presented by  

10:15am

Lee Chesneau

The 500 Mb Chart Workshop (3 hours) $68 seminar fee plus boat show admission. Limited seating. Pre-registration required. Pre-requisite: Attend the free seminar “An Introduction to the 500 Mb Chart". It is further recommended to also attend the free seminar "Introduction to the Surface Pressure Chart" & the prepaid workshop "The Surface Pressure Chart" for a more comprehensive understanding of how weather works in three dimensions.


Toronto International Boat Show
10:15am - SUNDAY, JANUARY 29, 2017
Enercare Centre, Salon 110W

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 will go into deeper discussion to further your understanding of this important tool 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., how 500 mb directly influences 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).

- To develop a culture of routinely accessing both 500 mb & their companion surface pressure charts, & annotating specific features that will allow one to clearly see their connected inter-relationships.

- To introduce the A,B,C & D zones associated with a 500 mb chart & applied in the “Understanding Weather & Cruise Decision Making Workshop” & discussed in detail in Heavy Weather Avoidance by Chen & Chesneau, (www.chesneaumarineweather.com/?p=214)

- Pre-requisite: Attend the free seminar “An Introduction to the 500 Mb Chart". It is further recommended to also attend the free seminar "Introduction to the Surface Pressure Chart" & the prepaid workshop "The Surface Pressure Chart" for a more comprehensive understanding of how weather works in three dimensions. See the Toronto Boat Show seminar schedule for the dates & time along with a syllabus description.

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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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