All Weather News

The Alpha of the Omega Pattern is Back Again

3 May 2016, 4:03 pm


That’s right, for the second time in a matter of weeks our weather pattern slowed to a snail’s pace. Well, not quite a snail’s pace, but still much slower than normal. This is good news for some, and not-so-good news for others.


The weather pattern gets its name from the shape of the jet stream- the fast flowing currents of air high up in the atmosphere. Instead of meandering in a across the U.S. in a general West to East direction, it develops dramatic ridges and troughs resembling the Greek letter Omega.


This causes a “traffic jam” of weather. The low and high pressure centers are unable to progress from west to east at a normal pace because of the the dramatic ridges and troughs in the jet stream. So the weather in many areas will remain relatively unchanged for a couple days.

For the Northwestern U.S. this means those days of record breaking warmth are a thing of the past and typical spring temperatures and rain will be the new norm.

And it’s a similar story for the Northeast. Spotty showers will linger through the weekend.

The central U.S. fares best with the new pattern. Warmth will spread from the High Plains through the Upper Midwest. Portions of Montana and Wyoming have the potential to break record highs come Thursday!

The dramatic ridges and troughs of the Omega Jet will stick around for a few more days, so if you are pulling the shorts or the umbrella out of the closet- don’t worry about putting them away. At least for the next few days.

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