Jet Stream Patterns News Today

heat wave is smothering a us humidity, driving the heat index into the triple digits. >> and this could be just the beginning of a brutally hot summer for americans and a new study suggesting the looming threat of an earthquake and tsunami. and the northwestern us of a size rarely seen on this planet and science contests are warning no one is ready. >> okay, were following these major developing stories and many more all coming in right here to cnn news central right now, speaker mike ...

And yes that same wave pattern is what made it almost summertime in sochi. why is it all so slow moving this year holding those severe weather patterns over us longer? >> nast an area of research that were currently investigating. we dont have a clear cut answer to that question. and if we did, we would have a much more skillful prediction in the longer time scale, say, out to 1 to 2 months. >> reporter: another mystery? whether this is all connected to climate change or not. theyre still trying...

Coast-to-coast, impacting tens of millions of people. whats the science behind all of the extreme weather? >> in terms of the storms weve seen in october, november, december, as i often tell peo e people, you know, the atmosphere doesnt have an on-off switch that knows when winter begins. >> dr. marshall shepherd is a president of the meteorological society. he said theres one big reason for the wild weather, the jet team. >> when we have the el nino-neutral conditions, the jet stream patterns, ...

>> reporter: hes the president of the meet logical society. he says theres one reason for the wild weather, the jet stream. >> the jet stream patterns, we get strong dips in the jet stream patterns. in the dips, there could be cold air. in the hills, warm air. so, generally, the jet stream pattern is the governing forcing function of our weather in the wintertime. >> reporter: case and point, denver, colorado. in ten days they went from negative temperatures to a balmy 70 degrees. a time of year...

Oscillation which is affecting our winter right now. >> i know you described it, weather as a mood and climate as a personality. what do you mean by that? >> weather is your mood and climate is your personality. you cant say anything based on what is happening today no more than you can say on my personality based on my mood today. the at amous fear, not a magic flip that has been flipped to say, okay, we need spring weather. this jet stream patterns that were under because of this arctic is aff...