Archive for February 17, 2014

ARE YOU READY FOR WARMER WEATHER? A MAJOR CHANGE IN THE UPPER-LEVEL WIND PATTERN WILL BRING WARMER TEMPERATURES… THE PATTERN REMAINS SOMEWHAT ACTIVE

For the last several weeks, a long-wave trough in the eastern part of North America has brought repeated blasts of Arctic air into the East and also helped produce ideal conditions for cyclogenesis resulting in occasional storminess. The upper-level wind pattern has flattened and become more of a zonal flow, which means that the winds are blowing more west to east in general. Instead of the winds blowing from the Canadian tundra, air masses will be coming in from the Pacific Ocean. This will result in much milder weather, but it seems that the pattern will remain somewhat active with occasional frontal passages bringing rain/showers every so often. We still have to get through another very chilly day today (Monday, 2/17). A frontal system will be moving through tonight and early Tuesday may cause some showers and we might even see some sleet in some places. Frozen precipitation is likely further to our north as they see yet another winter weather event. Snowfall totals in many locations in the Northeast have been incredible this year. The change in the jet stream should bring relief for them, also. Will the pattern return to the cold and stormy pattern again before winter is over? I can’t say for sure, but what I do know is that we will get a well-deserved break later this week. Keep in mind that with the increasing daylight hours and the sun’s position getting higher and higher in the sky, our average temperatures are now slowly rising. You also have to keep in mind that late February and March can be a very volatile time of year.

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