1. © Crown copyright 2009 Weather Situation Satellite, RADAR, Model Products

2. © Crown copyright 2009 Weymouth Weather Brief: Thu 6 Sept Penny Tranter

3. © Crown copyright 2009 Headlines for today Large area of high pressure centred close to WAP Light SE’ly (130°) gradient wind veering/turning right through the day becoming SSE’ly (160°) by midday and S (175°) by mid afternoon Light mainly SSE surface wind (150°) 5kt or less setting in by mid morning Light and fitful sea breeze WSW (235-250°) 6kt or less trying to build in from late morning and move east across Portland Harbour during afternoon 10% chance light sea breeze blowing for at least 2 hours between 5-8kt Fine – dry, warm with sunny spells

4. © Crown copyright 2009 Synoptic Situation Analysis Thursday 06/0100Forecast Thursday 06/1300

5. © Crown copyright 2009 Satellite picture 0715 today WAP

6. © Crown copyright 2009 Model products Winds forecast loop (knots) 0900 Thursday

7. © Crown copyright 2009 0930 Thursday Model products Winds forecast loop (knots)

8. © Crown copyright 2009 Model products Winds forecast loop (knots) 1000 Thursday

9. © Crown copyright 2009 Model products Winds forecast loop (knots) 1030 Thursday

10. © Crown copyright 2009 Model products Winds forecast loop (knots) 1100 Thursday

11. © Crown copyright 2009 Model products Winds forecast loop (knots) 1130 Thursday

12. © Crown copyright 2009 Model products Winds forecast loop (knots) 1200 Thursday

13. © Crown copyright 2009 Model products Winds forecast loop (knots) 1230 Thursday

14. © Crown copyright 2009 Model products Winds forecast loop (knots) 1300 Thursday

15. © Crown copyright 2009 Model products Winds forecast loop (knots) 1330 Thursday

16. © Crown copyright 2009 Model products Winds forecast loop (knots) 1400 Thursday

17. © Crown copyright 2009 Model products Winds forecast loop (knots) 1430 Thursday

18. © Crown copyright 2009 Model products Winds forecast loop (knots) 1500 Thursday

19. © Crown copyright 2009 Model products Winds forecast loop (knots) 1530 Thursday

20. © Crown copyright 2009 Model products Winds forecast loop (knots) 1600 Thursday

21. © Crown copyright 2009 Model products Winds forecast loop (knots) 1630 Thursday

22. © Crown copyright 2009 Model products Winds forecast loop (knots) 1700 Thursday

23. © Crown copyright 2009 Model products Winds forecast loop (knots) 1730 Thursday

24. © Crown copyright 2009 Model products Winds forecast loop (knots) 1800 Thursday

25. © Crown copyright 2009 Winds - Uncertainty in wind prediction From convective scale ensembles

26. © Crown copyright 2009

27. Warnings Board

28. © Crown copyright 2009 ***day’s Weather Forecast Thursday 06/1300 Wind forecast Thursday 06/1300

29. © Crown copyright 2009 Summary and uncertainties Light mainly SSE surface wind (150°) 5kt or less setting in by mid morning Light and fitful sea breeze WSW (235-250°) 6kt or less trying to build in from late morning and move east across Portland Harbour during afternoon 10% chance light sea breeze blowing for at least 2 hours between 5-8kt

30. © Crown copyright 2009 Questions & answers

31. © Crown copyright 2009 Forecast products http://www.metoffice.gov.uk/loutdoor/olympics/event-manager/ (General Weather Forecast, Race Areas Forecasts, Hourly Updates) This powerpoint brief is only available via the ISAF website. www.sailing.org/olympics/london2012