Severe Hail Storm at Fort Worth on May 7, 1995

1. Estimate the thermodynamic potential for convection on the basis of the 12UTC sounding.

(a) Compute CT, CCL, potential afternoon CAPE;

(b) Plot a hodograph and compute helicity for a storm motion of 290 at 20 knots.

2. Account for the abrupt fall in temperature observed at Fort Worth at 0300 UTC May 7.

3. Discuss the large scale controlling factors on this event on the basis of your examination (anlayses) of the surface chart, 850 mb and 500 mb charts (estimate QG-forcing).

4. Discuss the mesoscale factors contributing to this even on the basis of your examination (analyses) on the surface chart.