1. © Crown copyright 2009 Weymouth Weather Brief: Saturday 13 Aug Penny Tranter

2. © Crown copyright 2009 Headlines for today Winds similar to yesterday with sea breeze effect backing/turning left winds this afternoon WSW backing/turning left by 1200/1300 SSW - SW 11-16 KT gusts 14-22 KT Large wind angle deltas and variations in speed as sea breeze backs/turns wind left 30% chance of winds ONLY backing to SW at 1200 Mainly dry with bright spells

3. © Crown copyright 2009 Synoptic Situation Analysis Saturday 12/0100Forecast Saturday 12/1300

4. © Crown copyright 2009 Weather Situation Satellite picture today at 0700

5. © Crown copyright 2009 Model products Winds forecast loop 0900 Saturday

6. © Crown copyright 2009 Model products Winds forecast loop 1000 Saturday

7. © Crown copyright 2009 Model products Winds forecast loop 1100 Saturday

8. © Crown copyright 2009 Model products Winds forecast loop 1200 Saturday

9. © Crown copyright 2009 Model products Winds forecast loop 1300 Saturday

10. © Crown copyright 2009 Model products Winds forecast loop 1400 Saturday

11. © Crown copyright 2009 Model products Winds forecast loop 1500 Saturday

12. © Crown copyright 2009 Model products Winds forecast loop 1600 Saturday

13. © Crown copyright 2009 Model products Winds forecast loop 1700 Saturday

14. © Crown copyright 2009 Model products Winds forecast loop 1800 Saturday

15. © Crown copyright 2009 Model products Winds forecast loop 1900 Saturday

16. © Crown copyright 2009

21. Sunday’s Weather Forecast Sunday 14/1300 Wind forecast Sunday 14/1300

22. © Crown copyright 2009 Summary and uncertainties Winds similar to yesterday with sea breeze effect backing/turning left winds this afternoon WSW backing/turning by 1200/1300 SSW - SW 11-16 KT gusts 14-22 KT Large wind angle deltas and variations in speed as sea breeze backs/turns wind left 30% chance of winds ONLY backing to SW at 1200 SUNDAY: Winds similar strength but W to NW 10-14 KT gusts 14-19 KT with SSW - SW sea breeze in afternoon Mainly dry with sunny spells

23. © Crown copyright 2009 Questions & answers

24. © Crown copyright 2009 Forecast products http://www.metoffice.gov.uk/loutdoor/olympics/event-manager/ (General Weather Forecast, Race Areas Forecasts, Hourly Updates)http://www.metoffice.gov.uk/loutdoor/olympics/event-manager/ This powerpoint brief is only available via the ISAF website. http://www.sailing.org/uploads/WPIR2011/MetOfficeDaily.PPT http://www.sailing.org/uploads/WPIR2011/MetOfficeDaily.PPT

25. © Crown copyright 2009 Met Office Forecaster Duty Mobile : 07917 067934