Worldwide Severe Convective Storms: Listing of Global Events & Economic Loss

Global Worldwide Severe Convective Storms Review includes a select listing of global events that resulted in >USD 100mn in economic loss and/or >10 fatalities. It does not include a listing of aggregated loss totals from agencies which are not easily attributed to an individual event.

Severe Convective Storm what is the collective name for severe thunderstorms, including heavy rainfall, strong winds, hail and tornadoes.

Convective storms or thunderstorms are severe local storms associated with thunder, lightning, heavy rain, hail, strong winds and sudden temperature changes.

Worldwide Severe Convective Storms

Event NameDateRegionEconomic Losses
   (USD mn)
March 14–17Asia105
April 11–15Asia130
April 23–25Asia120
May 16–June 1Asia0.2
North China StormsJune 10–14Asia300
North China StormsJune 19–23Asia180
July 25–28Asia630
Aug. 1–31Asia500
EmmelindeMay 20Europe630
FinjaMay 22–25Europe470
Leocardia and MayJune 2–6Europe1,906
Petra and QiaraJune 19–24Europe2,761
Rebecca and ScarlettJune 26–29Europe1,536
UlrikeJune 30–July 1Europe345
CarolinJuly 20Europe198
Karin and LaviniaAug. 17–21Europe488
Feb. 2Latin America120
Feb. 21Latin America150
Jan. 21–22North America175
Feb. 21–22North America1,075
March 5–7North America755
March 11–13North America220
March 14–16North America520
New Orleans Tornado/SCSMarch 21–23North America825
March 29–31North America1,250
April 2–4North America295
April 3–7North America1,450
April 10–14North America2,800
April 15–17North America875
April 21–24North America605
Andover Tornado/SCSApril 26–30North America565
May 1–3North America1,150
May 4–6North America930
May 9–10North America2,150
Upper Midwest May DerechoMay 11–12North America2,700
May 13–16North America690
May 17–19North America215
May 19–22North America2,400
Southern Canada DerechoMay 21North America1,350
May 23–25North America365
May 29North America200
May 30–June 2North America690
June 1–3North America100
June 4–8North America1,900
June 11–17North America3,550
June 22–23North America125
South Dakota DerechoJuly 1–7North America640
July 7–13North America845
July 18–21North America118
July 21–25North America1,250
Aug. 1–4North America200
Aug. 11–12North America170
Aug. 20–21North America675
Aug. 27 –29North America250
Aug. 28–Sept. 6North America400
Sept. 18–21North America500
Oct. 1–4North America170
Oct. 15–16North America250
Oct. 24–25North America245
Southern Plains Tornado OutbreakNov. 4–5North America400
Nov. 4–5North America175
Nov. 11North America150
Western Pennsylvania HailNov. 27North America115
Nov. 29–30North America125
Mid-December Tornado OutbreakDec. 13–14North America350
Source: Beinsure by Gallagher Re

Are hurricanes convective storms?

Worldwide Severe Convective Storms: Listing of Global Events & Economic Loss

Hurricanes are warm core storms. The heat hurricanes generate is from the condensation of water vapor as it convectively rises around the eye wall. The lapse rate must be unstable around the eyewall to insure rising parcels of air will continue to rise and condense water vapor.

What condition makes convective storms likely?

Convective (also called potential) instability occurs when dry mid-level air advects over warm and moist air in the lower troposphere.

How long do convective storms last?

A Mesoscale Convective System (MCS) is a collection of thunderstorms that act as a system. An MCS can spread across an entire state and last more than 12 hours.

What does convective mean in weather?

Convection. Generally, transport of heat and moisture by the movement of a fluid. In meteorology, the term is used specifically to describe vertical transport of heat and moisture in the atmosphere, especially by updrafts and downdrafts in an unstable atmosphere.

Thunderstorms have three stages in their life cycle: The developing stage, the mature stage, and the dissipating stage.

Do convection currents cause tornadoes?

This convective action (that is, the circulation of air as a result of heat transfer) produces the huge clouds commonly associated with thunderstorms and tornadoes. Convection can be initiated when the Sun heats a localized area of the ground, destabilizing the near-surface air.

What are examples of convective winds?

The most familiar convective winds are land and sea breezes, valley and slope winds, whirlwinds, and winds associated with convective cumulus and thunderstorm clouds.

Which type of storm is the most severe storm?

Tornadoes are far and way the most dangerous storms in terms of deaths and injuries by an order of magnitude. Hurricanes, typhoons, and storm surges cause the most property damage, droughts and floods cause the most crop damage.

What is the longest storm in history?

Hurricane/Typhoon John — 1994 (East Pacific), holds the Guinness World Record for longest lasting tropical cyclone at 31 full calendar days, lasting from Aug. 11 – Sept. 11, 1994.

What happens during convection?

Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.