Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Salt Lake City Utah
941 PM MDT Thursday Oct 23 2014
Synopsis...a warm dry southwest flow over the area will become
stronger on Saturday. A strong cold front will cross Utah on
Discussion...the axis of the high over the region is along the
eastern Utah border with a mild southwesterly flow over the County Warning Area. Considerable
high cloudiness has been streaming through the state with the
thickest clouds across the northwest this evening.
The ridge is forecast to amplify over the next 24 hours. The
rising heights and backing flow will shunt the jetstream and
associated cirrus plume off to the north of the County Warning Area by tomorrow
morning with a sunny warm day expected.
South winds will be a little stronger tomorrow and should provide
good mixing allowing temperatures to rise several degrees from today.
The large trough in the eastern Pacific starts to nose inland Sat and the
increasing flow aloft plus a tightening surface gradient should
boost winds considerably. Temperatures will stay warm and may even rise
a little from Friday in the Salt Lake area.
The new 00z NAM has the cold front arriving in two parts with an
initial push before sunrise Sunday and the main cold push Sunday
afternoon. It generates some precipitation across the north with both
boundaries but it is not generous with the quantitative precipitation forecast. At this time it
appears the main impact from this system will be strong pre and
Post frontal winds and significantly cooler temperatures...with just a
few pockets of significant snowfall in the northern mountains
Updated earlier to increase sky cover across much of the County Warning Area for
the first part of the night and to decrease it after midnight. No
additional updates planned.
Aviation...winds at the slc terminal will be southeasterly
through the night. Winds will become gusty out of the south by
late morning Friday.
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)