B3 Weather Blog
December 21st, 2017
Once upon a time, there was a small snow storm nearing and it was Christmas time! YES YOU HEARD ME!!!! THERE IS A SMALL POSSIBILITY OF SNOW ON CHRISTMAS!!! EXCITING, RIGHT? LET ME TELL YOU WHAT MIGHT CAUSE THIS!
By:The Weather Club
B3 Weather Blog
December 1st, 2017
There are major differences in the temperature coming! In the recent GEFS Ensemble model, there was a positive (+) PNA, a negative (-) EPO, a negative (-) AO, and a negative (-) NAO. For further understanding, know that a +PNA means that there will be a ridge/higher heights, over the west coast of USA, a -EPO means that there is higher heights/pressure over north of Alaska, a -AO means higher heights/pressure over the North Pole, and a -NAO means higher heights/pressure over Greenland. All of these factors create a deep trough over the Eastern US, bringing bitter cold air that might stay for a long period of time.
The +PNA, -EPO, -AO, and -NAO will affect surface temperature. They will create a massive change in temperatures, resulting in cold temperatures. As you can see below, the labeled regions we spoke of, have higher heights/pressures creating a massive trough in the eastern US.
The picture below is a representation of the temperature departure from normal. Due to the events in the upper atmosphere (picture above), temperatures from the central U.S to the east coast will range 10-15 degrees below normal. This cold pattern will stay put for at least two weeks after December 7th.
The picture below is a representation of the temperature departure from normal. Due to the events in the upper atmosphere (picture above), temperatures from the central U.S to the east coast will range 10-15 degrees below normal. This cold pattern will stay put for at least two weeks after December 7th.
By:The Weather Club (JG, HC, SB)