1. A tornado formed just on the warm side of a quasi-stationary boundary oriented east- west, and is moving east-northeastward into the cooler air at a rate of 17 m/s. Over a period of 15 min, the...

This is a math problem. I understand the logistics of a tornado. I am having trouble starting the math process

Extracted text: 1. A tornado formed just on the warm side of a quasi-stationary boundary oriented east- west, and is moving east-northeastward into the cooler air at a rate of 17 m/s. Over a period of 15 min, the tornado experienced a temperature drop of 2.1°C. A nearby weather station observed a temperature decrease of 6.2°C over the past 1.5 hours. What was the strength of the temperature gradient of the boundary (in °C/km)? using Lagrangian : EUlerian tAduection