Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Salt Lake City Utah
1005 am MDT Sat Aug 23 2014
Synopsis...a cold storm system will exit the area today and
tonight. Another disturbance will impact the area early next week
before high pressure returns for the latter part of the week.
Discussion...an unseasonably cool Pacific trough continues to
swing through the Rocky Mountains this morning. After an active
overnight period across Utah and southwest Wyoming...most of the
shower and thunderstorm activity has moved into the eastern
half of Utah...leaving behind mostly sunny to partly cloudy skies
across much of western and northern Utah.
Isolated showers and thunderstorms will still be possible across
much of the area through the early afternoon...as cold air aloft
remains over the area. Any shower activity will likely dissipate
fairly quickly in the late afternoon...as the trough moves off
into Wyoming...and a drier and more stable airmass moves over the
Sunday still looks to be a break between storm systems...before
another trough moves into the area from the Pacific northwest on
Monday and Tuesday. Will take a closer look at the forecast for
that trough...as early looks at the 12z runs appear to present a
deeper and slower trough than previously advertised.
Updated the forecast earlier this morning to decrease probability of precipitation and sky
cover for the morning hours...as the rain quickly exited much of
northern Utah between 12z and 14z. No further updates are
anticipated for this morning.
Aviation...ceilings at the slc terminal are expected to be
near 5k feet above ground level through about 19-20z with a slight chance of brief
showers through 20z. Sky conditions are expected to improve to
scattered after 20-21z although there is a 30 percent chance of ceilings
below 7k feet above ground level lingering until 22z. Winds are expected to shift
from southeast to northwest between 16 and 17z.
For more information from National oceanic and atmospheric administration/S National Weather Service visit...
http://weather.Gov/saltlakecity (all lower case)
For frequently asked questions about the area forecast discussion
http://weather.Gov/saltlakecity/general/afd_faqs.Php (all lower case)