Weather Service Report


186 
FXUS65 KSLC 231702
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1002 AM MST Thu Nov 23 2017

.SYNOPSIS...High pressure aloft across the region today will
weaken as a weather disturbance moves east across the northern
Rockies tonight. Strong high pressure aloft will return this
weekend, followed by a cold storm system early next week. 

&&

.DISCUSSION...Plenty of high clouds will spread across the CWA
today, but that will be the only blemish on this very mild 
Thanksgiving Day. Despite the high clouds many areas will
experience temperatures that are more reminiscent of early 
October rather than late November. As one you would surmise record
temperatures for the calendar day will be challenged and whether
we break the records or not will come down to the cloud cover
which will make it a real struggle in most locations

Have increased the sky cover for just about all areas today as
moisture from off the coast of southern California is being pulled
northeastward ahead of a weak disturbance moving across the
Pacific NW later today and across the northern Rockies tonight.
Little threat of any precip except for along the Idaho border late
tonight and then the Wasatch Mountains/Uintas and southwest
Wyoming for Friday. However, there is a tropical connection to 
this moisture plume so may have to give a little more credit to 
the source and up the PoPs some. Will evaluate more on afternoon
package.

Have lowered temps a couple of degrees across the Great Salt Lake
Desert due to what appears to more stagnant conditions there today
than yesterday. In addition, have lowered temps by 5 degrees for 
the Cache Valley for today as temperatures were more than 10 
degrees colder this morning than yesterday at Logan. So just don't
see enough mixing to get temps into 60s with the increased cloud
cover. 

&&

.AVIATION...VFR conditions will prevail at KSLC throughout the day. 
Southeast winds are expected to shift to prevailing northwesterly 
around 20-22Z. However, there is a 25 percent chance winds remain 
southerly through the day or become light and variable this 
afternoon before returning to southerly this evening. 


&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.
WY...None.
&&

$$

PUBLIC...Struthwolf
AVIATION...Carr

For more information from NOAA's National Weather Service visit...
http://weather.gov/saltlakecity

For frequently asked questions about the Area Forecast Discussion
visit...
http://weather.gov/saltlakecity/general/afd_faqs.php

Return to Home page


Western Regional Climate Center, wrcc@dri.edu