Upper-Level Trough Poses Wintry Threat for Northeastern U.S. (credit: NWS Phoenix, Arizona)12/28/2016  DISCUSSION: As illustrated by the trends in the cloud patterns evident within the animated infrared satellite imagery, there is an abundance of upper level sub-tropical moisture flowing northward around a low pressure system to the southwest of the greater four corners region of the Desert Southwest. Due to the current positiomning of this upper-level low pressure system, this systemm will bring an increased chance for rain to this part of the nation during Friday evening and into Friday night. Eventually, as this system slowly moves ashore into the southwestern United States, it will ultimately merge with a larger parent low pressure system which is projected to bring wintry mix to parts of the coastal and interior northeastern United States on New Years Day. Stay tuned right here at the Global Weather and Climate Center for updates on this upcoming forecast situation as more details become clearer with time.
To learn more about other high-impact weather events from across North America, be sure to click here! ©2016 Meteorologist Jordan Rabinowitz
1 Comment
Sheldon Kusselson
12/28/2016 09:00:18 pm
Moisture that Jordan talks about can be followed at:http://www.ospo.noaa.gov/Products/bTPW/TPW_Animation.html?product=SUPER_NATIONAL_TPW . The moisture that comes out of Mexico and the tropical eastern Pacific will most likely be slower to move into the eastern part of the U.S. than the parent low that will be affecting the Northeast U.S. New Year's eve through New Year's Day. That parent low can already be seen in S Central Canada at: http://www.ssd.noaa.gov/goes/comp/nhem/h5-loop-wv.html with a broad trough extending south into the northern Plains. Unfortunately, that trough won't pick up the southern moisture for New Year's day, but another trough will pick up that deep tropical like moisture for the Northeast for Tuesday, January 3 and give a rather warm rain event along the New England coast. Still too early to tell how far inland the rain will extend and how much snow may affect inland New England...but it definitely will be warmer over much of New England next Tuesday than New Year's eve and day. Leave a Reply. |
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