textproduct: Salt Lake City
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Mild temperatures will continue through the work week with high temperatures averaging 10-15F above seasonal normals.
- The onset of a cooler and more unsettled pattern is expected by Saturday, bringing periods of rain and high elevation snow through early next week.
DISCUSSION
High pressure is centered over California this evening, with a relatively dry west to northwest flow over Utah and southwest Wyoming. Highs today were generally similar to yesterday with maxes averaging 10-15F above seasonal normals. Northern portions of the area will see some rather weak cooling aloft tomorrow as a Canadian trough tracks well to our north, but this will drop highs tomorrow by a couple of degrees with dry conditions as the ridge moves overhead.
The warming trend is expected to return for Thursday into Friday in southwest flow aloft with Friday expected to be the warmest day of the week for most locations. That weak boundary that is to bring cooling on Wednesday, however, is expected to stall and bring enough instability for afternoon showers focused over the higher terrain of northern Utah. Given dry lower levels, gusty and erratic winds will be the main threat with any storms that develop.
The vast majority of guidance indicates a more unsettled pattern developing beginning Saturday as a series of Pacific lows impact the area. Confidence remains on the low side with regard to the details of the tracks of these lows and when they eventually open up and weaken, as this is an area where the guidance tends to struggle. However, confidence remains high in temperatures moving much closer to seasonal normals, and for some periods of rain and higher elevation snow into early next week.
REST OF UTAH AND SOUTHWEST WYOMING
Winds will remain light and terrain-driven during the overnight hours, with breezy westerly to southwesterly winds with gusts to 20kts developing during the afternoon, mostly across higher elevation sites. VFR conditions will prevail with BKN-SCT high clouds.
SLC WATCHES/WARNINGS/ADVISORIES
UT...None. WY...None.
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