1. ©Vaisala | date | Ref. code | Page 1 Winter 2004-2005 ILRN Flashes in NE Pacific ICAO Region M

2. ©Vaisala | date | Ref. code | Page 2 September 2004 ILRN Flashes in NE Pacific ICAO Region M

3. ©Vaisala | date | Ref. code | Page 3 01 Sept 04 - 1045 UTC Numerous flashes as low enters B.C. coast.

4. ©Vaisala | date | Ref. code | Page 4 October 2004 ILRN Flashes in NE Pacific ICAO Region M

5. ©Vaisala | date | Ref. code | Page 5 05 Oct 04 - 1215 UTC Flashes in low NE of Hawaii, cloud clusters along equatorial trough, and cold low W of B.C.

6. ©Vaisala | date | Ref. code | Page 6 06 Oct 04 - 0545 UTC Some flashes NE of Hawaii, and moderate flash activity E of low entering B.C.

7. ©Vaisala | date | Ref. code | Page 7 25 Oct 04 #1 - 1115 UTC Numerous short SW-NE lines over Hawaiian islands; some flashes in S-N line W of Seattle.

8. ©Vaisala | date | Ref. code | Page 8 25 Oct 04 #2 - 1445 UTC Continued scattered flashes around islands; organized SW-NE line west of Oregon.

9. ©Vaisala | date | Ref. code | Page 9 26 Oct 04 - 0615 UTC Continued isolated flashes around islands; short SW-NE line west of northern California.

10. ©Vaisala | date | Ref. code | Page 10 27 Oct 04 - 1045 UTC Flashes in and S of low just W of northern California.

11. ©Vaisala | date | Ref. code | Page 11 November 2004 ILRN Flashes in NE Pacific ICAO Region M No Events of Note

12. ©Vaisala | date | Ref. code | Page 12 December 2004 ILRN Flashes in NE Pacific ICAO Region M

13. ©Vaisala | date | Ref. code | Page 13 12 Dec 04 - 1015 UTC One area of flashes in trough NNE of Hawaii, and another on E side of low NW of Hawaii.

14. ©Vaisala | date | Ref. code | Page 14 13 Dec 04 #1 - 0445 UTC Frequent flashes SE of low located to NW of Hawaii.

15. ©Vaisala | date | Ref. code | Page 15 13 Dec 04 #2 - 1145 UTC Multiple active flash areas within and ahead of low NW to N of Hawaii.

16. ©Vaisala | date | Ref. code | Page 16 13 Dec 04 #3 - 2345 UTC SW-NE curved line of flashes N of Hawaii.

17. ©Vaisala | date | Ref. code | Page 17 14 Dec 04 #1 - 0815 UTC Two major and several minor SW- NE lines associated with low N of Hawaii.

18. ©Vaisala | date | Ref. code | Page 18 14 Dec 04 #2 - 2045 UTC Several SW- NE lines of flashes N to NE of Hawaii.

19. ©Vaisala | date | Ref. code | Page 19 15 Dec 04 #1 - 0915 UTC Several short lines of flashes in major trough NE of Hawaii, and in new low to NW.

20. ©Vaisala | date | Ref. code | Page 20 15 Dec 04 #2 - 2315 UTC Scattered flashes within and ahead of low to NW of Hawaii.

21. ©Vaisala | date | Ref. code | Page 21 16 Dec 04 #1 - 1045 UTC Several lines of flashes in minor trough NW to N of Hawaii.

22. ©Vaisala | date | Ref. code | Page 22 16 Dec 04 #2 - 1515 UTC Several long lines of flashes continue NW to N of Hawaii.

23. ©Vaisala | date | Ref. code | Page 23 17 Dec 04 - 0445 UTC Two long lines of flashes continue N of Hawaii.

24. ©Vaisala | date | Ref. code | Page 24 18 Dec 04 - 1415 UTC Some flashes in low to NW of Hawaii.

25. ©Vaisala | date | Ref. code | Page 25 19 Dec 04 #1 - 1015 UTC Several short lines of flashes to SE of low located NW of Hawaii.

26. ©Vaisala | date | Ref. code | Page 26 19 Dec 04 #2 - 1515 UTC Clusters and areas of flashes within and around low NW of Hawaii.

27. ©Vaisala | date | Ref. code | Page 27 January 2005 ILRN Flashes in NE Pacific ICAO Region M

28. ©Vaisala | date | Ref. code | Page 28 11 Jan 05 - 1245 UTC Continued complex pattern of flashes. Four centers at this time from N to SE of Hawaii.

29. ©Vaisala | date | Ref. code | Page 29 12 Jan 05 - 0715 UTC Continued flashes from N to NE of Hawaii; some in semicircle.

30. ©Vaisala | date | Ref. code | Page 30 13 Jan 05 #1 - 1145 UTC Series of small disturbances in SW-NE orientation to NE of Hawaii developed into long line.

31. ©Vaisala | date | Ref. code | Page 31 13 Jan 05 #2 - 1345 UTC Long line of imbedded disturbances continue to cover region with moderate flash activity.

32. ©Vaisala | date | Ref. code | Page 32 14 Jan 05 #1 - 0715 UTC Continued disturbances NE of Hawaii developed into long line; one has semicircular shape.

33. ©Vaisala | date | Ref. code | Page 33 14 Jan 05 #2 - 1215 UTC End of extensive flash activity from prolonged period in disturbances NE of Hawaii.

34. ©Vaisala | date | Ref. code | Page 34 15 Jan 05 #1 - 1045 UTC Three new separate disturbances with flashes formed NW to NE of Hawaii.

35. ©Vaisala | date | Ref. code | Page 35 15 Jan 05 #2 - 1315 UTC Three distinct disturbances and cold pool flashes NW to NE of Hawaii.

36. ©Vaisala | date | Ref. code | Page 36 16 Jan 05 - 0945 UTC Several SW- NE lines of flashes in cold pool N of Hawaii.

37. ©Vaisala | date | Ref. code | Page 37 17 Jan 05 - 0815 UTC Long line of moderate flashes NE of Hawaii.

38. ©Vaisala | date | Ref. code | Page 38 26 Jan 05 #1 - 1215 UTC Small cluster of flashes W of northern California.

39. ©Vaisala | date | Ref. code | Page 39 26 Jan 05 #2 - 2345 UTC Small clusters of flashes W of northern California.

40. ©Vaisala | date | Ref. code | Page 40 27 Jan 05 #1 - 0315 UTC Moderate to strong cluster with curvature W of northern California.

41. ©Vaisala | date | Ref. code | Page 41 27 Jan 05 #2 - 1145 UTC Moderate cluster with several lightning centers continues W of Northern California.

42. ©Vaisala | date | Ref. code | Page 42 February 2005 ILRN Flashes in NE Pacific ICAO Region M

43. ©Vaisala | date | Ref. code | Page 43 26 Feb 05 #1 - 0845 UTC Long line of scattered flashes NW of Hawaii, and cluster NE of Hawaii.

44. ©Vaisala | date | Ref. code | Page 44 26 Feb 05 #2 - 1945 UTC Cluster of flashes on SE side of low W of San Francisco.

45. ©Vaisala | date | Ref. code | Page 45 27 Feb 05 - 0345 UTC Strong line of flashes lasts several hours on E side of low to W of San Francisco.

46. ©Vaisala | date | Ref. code | Page 46 March 2005 ILRN Flashes in NE Pacific ICAO Region M

47. ©Vaisala | date | Ref. code | Page 47 04 Mar 05 - 0815 UTC Disperse area of flashes in complex system NW of Hawaii.

48. ©Vaisala | date | Ref. code | Page 48 05 Mar 05 #1 - 0845 UTC Flashes around large low N of Hawaii, and in SW- NE line NNE of Hawaii.

49. ©Vaisala | date | Ref. code | Page 49 05 Mar 05 #2 - 1445 UTC Frequent flashes in long SW- NE line NE of Hawaii.