1. Synoptic situations associated to floods in the river mouths

2. Method: Purposes: Classify synoptic situations associated to various types of floods Assess the meteorological fields during the floods periods simulated by mesoscale Cosmo model Synoptic frontal analysis is applied Data from GIS-Meteo system is used (since 1997). Time resolution – 3 hours includes: SLP, geopotential at all pressure levels (1000-10 hPa) Precipitation Cloudiness temperature at 2m and pressure levels Data of radiolocation Wind speed and direction

3. Types of floods: Storm surges Water-flow Ice-jam Areas: Baltic sea Black sea Azov sea Caspian sea Barents sea

4. Нагонные наводнения Storm surges

5. Neva. February 2005 7.01.2005 12ч H500 Surface map L L

6. Wind at 10 m 07.01.2005 12 GMT

7. 10.01.2007 L Surface map

8. Norvegian cyclone 29.11.2011

10. Pregolya 03-07.12.1999 Surface map H500

11. Wind at 10 m 03.12.1999 00 GMT

12. 5.12.1999 00ч Surface map H500

13. Wind at 10 m 04.12.1999 00 GMT

14. 11.04.1997 00GMT Novorossiysk April 1997 L L L L L Surface map H500

15. 12.04.1997 00ч L L L H500 Surface map

16. 11.04.1997 00GMT Wind at 10 m

17. 11.04.1997 12GMT Wind at 10 m

18. 12.04.1997 00GMT Wind at 10 m

19. 29.08.2006 12 GMT Eisk, Azov H500 L L L Surface map

20. 30.08.2006 00 GMT L L L H500 Surface map

21. 30.08.2006 12 GMT L L L H500 Surface map

22. 29.08.2006 12ч Wind at 10 m 30.08.2006 00ч 30.08.2006 12ч

23. Mouth of Don river. April 1997 12.04.1997 00 GMT L L Surface map

24. L 14.04.1997 00 GMT

25. 12.04.1997 00 GMT Wind at 10 m

26. Mouth of Don river 28 February 2005 L L Surface map H500

27. 1.03.2005 00GMT L L Surface map H500

28. Wind at 10 m 28.02.2005

29. Water flow

30. Kerch 10-12 November 2007 Surface map L

31. Novorossiysk 7-9 December 2002 Surface map L L H L

32. Sochi-Tuapse 5-11 August 2002 Surface map L L L H L

33. H500

34. Mzymta 25-27 October 1997 Surface map L

35. Pregolya 7-10 August 2005 Surface map L

36. Sulak 17-22 July 1997 Surface map L H H

37. Sulak 18-24 June 2002 Surface map L

38. Terek 15-24 June 2002 Surface map H

39. Ice-jam

40. Pechora June 2008 Surface map L Н Н

41. Pechora June 1998 Surface map L L

42. Conclusions Storm surges – the main contribution of the wind Neva – zonal cyclonic process Pregolya – zonal cyclonic process + contribution of frontal precipitation Black sea region – common contribution of winds and precipitation Potential predictors – trajectories of depressions, wind speed and wind direction. Water flow – the main factor abundant precipitation Various origin of precipitation – frontal zone, topography, deep depressions No unified scheme of synoptic situation Potential predictors – intensity and location of frontal zone Ice-jam – main cause large zonal frontal zone expanding in north- south direction. Potential predictors – zonal temperature gradient, precipitation