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Fourth International Workshop on Extratropical Transition

IWET4 Group Photo

The fourth in a series of international workshops on the Extratropical Transition of Tropical Cyclones (IWET4) will be held from 20-25 May 2012 at the Mont Gabriel Lodge, Quebec, Canada. This meeting is sponsored by the WMO/WWRP through Tropical Meteorology Research and THORPEX.

The aims of the meeting are to review recent progress in predicting and understanding extratropical transition and to set future priorities for research and development in response to operational needs. The workshop will provide a forum for the research and forecasting communities to interact. In addition to presentations there will be time dedicated to discussion and practical sessions. Topics are requested on such areas as:

  • results from T-PARC
  • impact of ET on downstream predictability
    • direct impacts such as through extratropical cyclone development
    • indirect impacts such as through enhanced moisture transport
  • Application of remote sensing for ET analysis and forecasting
  • Application of ensemble prediction systems for ET analysis and forecasting
  • Verification of ET forecasts
  • Development of dedicated forecast products
  • High-impact weather at landfall
    • rainfall
    • storm surge, waves, and coastal erosion



Session 1

Sessions 2

Session 3A

Session 3B

Session 4

Session 5

Session 6

Session 7

Session 8

Session 9

Session 10

Registration fee

There will be a workshop registration fee of $100.00 Canadian (as of April 5, the Canadian dollar is approximately at par with the US dollar, and is worth about 0.77 Euros). This registration fee is used to pay for our use of the hotel meeting room, and for refreshments during the health breaks. The payment of the registration fee can be made at the time of your check-in at the hotel.The hotel registration form is also available. The reservation deadline for Hotel Mont Gabriel Lodge has been extended to April 30.

IWET4 Program Committee:

  • John Gyakum
  • Sarah Jones
  • Chris Fogarty
  • Pat Harr
  • Chris Velden

Please submit your abstract to BOTH of the following addresses by 15 February 2012:

  1. John Gyakum (john [dot] gyakum [at] mcgill [dot] ca)
  2. Sarah Jones (aurelia [dot] mueller [at] kit [dot] edu)

Pre-travel reference

Please click images to enlarge

Map for IWET4 including Montreal and Mont Gabriel Map for IWET4 including Mont Gabriel and Saint Adele