BIG WEATHER!

1. BIG WEATHER! Submitted by: Jim McClinticSalt Lake City, UT 9-16-01

2. Air Masses AIR MASSES mP cP mT cT

3. 4 weather fronts: Stationary Front Cold Front Warm Front Occluded Front

4. Mid-latitude cyclone Where are the mid-latitudes? Generally between 300 and 600 of latitude! McKnight

5. Cold front photo Submitted by: Dale KaminskiExcellent Thunderstorm Formation just over the city! You could see the front moving in to the north and south as far as the eye could seeKearney Nebraska August 23, 2001

6. 10/1/01

7. 10/4/01

8. 10/8/01

9. 10/11/01

10. SD Union-Tribune, 10/8/2004

11. CYCLOGENESIS

12. CYCLOGENESIS

13. Tropical Cyclone In 10 minutes, a hurricane releases more energy than all the world’s nuclear weapons combined.

14. USA Today Updated 10/4/2006 9:17 AM ET HANOI, Vietnam (AP) — Floods triggered by heavy rains submerged tens of thousands of Vietnamese homes Wednesday in the aftermath of Typhoon Xangsane, which killed at least 169 people in Vietnam and the Philippines, officials said. Vietnam's toll from the storm, which slammed into the country's central coast on Sunday, rose to 59 killed and four missing. The Philippines, which bore the brunt of the storm last week, reported 110 dead and 79 missing, as officials in both countries continued to tally the casualties and assess the damage. In the central Vietnamese port city of Danang, 22 people were killed and four were missing, said disaster official Huynh Van Thang. Officials previously had said 26 people were killed by the typhoon, most by collapsing homes. Another 14 people were killed in neighboring Quang Nam province, eight in Ha Tinh, four each in the provinces of Nghe An, Quang Tri and Thua Thien Hue, and three in Quang Binh province, disaster officials in these provinces said. The damage is estimated at $625 million, according to the National Floods and Storms Control Committee.

15. Natural Hazards >> Severe Storms >> Typhoon Xangsane Earth Observatory

16. Andrew: August, 1992 ---- Miami, Florida!

17. Hurricane pressure gradient

18. HURRICANE ANDREW

19. Michelle!

20. Michelle2

21. ---ISABEL, 9/15/03

22. ISABEL downgraded, 9/16/03--------

23. ISABEL, 9/18/03

24. ISABEL, 9/18/03

25. ISABEL, 9/18/03 September 18, 2003 Isabel was blamed for at least two deaths in North Carolina and Virginia. The storm that had once threatened 160 mph winds and a 12-foot storm surge rolled in around midday just south of isolated Ocracoke Island with a 5-foot surge.

26. wind speed is determined by air pressure

27. Eye= high pressure downdraft

28. duration

29. Seasonality

30. Dennis 7/10/2005 STORM SURGE

31. STORM SURGE Dennis 7/10/2005

32. Storm surge, not wind, causes most destruction and lives lost Storm surge (high seas) is a result of: 1. Low pressure (upward suction of the region of ocean beneath the hurricane’s low pressure influence) 2. Wind (upward pushing, shoving, of a region of ocean by the sustained winds)

33. Saffir-Simpson scale

34. Galveston, 1900 6000 lives lost

35. Bangladesh

36. Bangladesh 300,000 lives: 1737 300,000 lives: 1876 500,000 lives: 1970 175,000 lives: 1991

37. The UltimateCyclone!

38. Waterspout in Florida Submitted by: Janet GussClearwater Beach (Sand Key), Florida, July 7th, 1999, A huge waterspout.

39. Distribution of tornadoes Aguado, p.335

40. seasonality Aguado, p.337

41. Characteristics

42. OKC-Wichita map

43. Submitted by: roger hillThe MOST impressive supercell thunderstorm I have ever seen in 15 years of storm chasing!West of Childress, TXMay 29, 2001 Mesocyclone

44. DOPPLER EFFECT

45. El Nino!