Tornado and Hurricane

Wellposedness of the tornado-hurricane equations

We prove local-in-time existence of a unique mild solution for the tornado-hurricane equations in a Hilbert space setting. The wellposedness is shown simultaneously in a halfspace, a layer, and a cylinder and for various types of boundary conditions which admit discontinuities at the edges of the cylinder. By an approach based on symmetric forms we first prove maximal regularity for a linearize...

Tornado Warnings and Tornado Fatalities : The Case of May 22 , 2011 Tornado in Joplin , Missouri

Daily variation in natural disaster casualties: information flows, safety, and opportunity costs in tornado versus hurricane strikes.

Casualties from natural disasters may depend on the day of the week they strike. With data from the Spatial Hazard Events and Losses Database for the United States (SHELDUS), daily variation in hurricane and tornado casualties from 5,043 tornado and 2,455 hurricane time/place events is analyzed. Hurricane forecasts provide at-risk populations with considerable lead time. Such lead time allows s...

Tornado Forecasting: A Review

Present-day operational tornado forecasting can be thought of in two parts: anticipation of tornadic potential in the storm environment, and recognition of tornadic storms once they develop. The former is a forecasting issue, while the latter is associated with warnings (or so-called nowcasting). This paper focuses on the forecasting aspect of tornadoes1, by dealing primarily with the relations...

Tornado Inflicted Damages Pattern

On average, about a thousand tornadoes hit the United States every year. Three out of every four tornadoes in the world, occur in the United States. They damage life and property in their path and they often hit with very little, sometimes no warning. Tornadoes cause approximately 70 fatalities and 1,500 injuries in US every year. The interest of this study is to find whether the fatalities and...