"Down over the country comes this 'low,' at the rate of five hundred miles a day, with rain and moist winds accompanying it, and sharp on its heels, racing from the north, comes the cold 'high' which we have just seen forming at Medicine Hat. The cold wave is fully organized and is on its way."
He laid the third map on the table.
"Here is the situation at eight o'clock this morning," he said. "The 'low' or storm, has swung at right angles, following the preferred Ohio and St. Lawrence Valley Route. It left Toledo early this morning and at eight o'clock was raging over the Great Lakes, with its centre north of Buffalo. It is speeding up, you see, having traveled eight hundred miles since yesterday. The cold wave 'high' from Medicine Hat has traveled along its usual track and is now central over Kansas, with clear skies and a drop of thirty degrees in temperature. There was a severe freeze in Kansas last night, with zero temperatures, and freezing point was touched on the Mexican border."
"Whew," whistled the farmer, "and is that on its way here?"
"It is," the Forecaster answered. "Your temperature?" he continued, turning to the boy.
"Thirty-seven," Anton answered.
"Going down rapidly, you see. The wind, Tom?"
"Northwest."
"Blowing outwards from the rapidly approaching 'high.'"
"What's the barometer?" asked the farmer, who was quickly grasping the manner of reading a weather map.