FXUS65 KSLC 070928

AFDSLC



Area Forecast Discussion

National Weather Service Salt Lake City UT

328 AM MDT Mon Apr 7 2025



.SYNOPSIS...High pressure will result in warm and dry conditions 

today. A weak storm system will graze northern Utah later today into 

Tuesday. Strong high pressure will build in again afterwards, 

continuing into the weekend.



&&



.SHORT TERM (THROUGH 12Z WEDNESDAY)...An upper ridge continues to 

build into Utah this morning while upstream, a trough is noted over 

the West Coast. The ridge axis is expected to shift overhead by 

around sunrise, while the upstream trough gradually weakens as it 

progresses inland. The ridge is essentially just expected to end up 

flattening as the trough grazes northern Utah this evening and 

overnight. 



Ahead of the the trough today, west to southwest flow will increase 

across the area. This will lead to increased mixing, which when 

combined with the warm airmass associated with the high pressure, 

will lead to warm temperatures today. Afternoon maxes are expected 

to be around 5-10 degrees warmer than yesterday, which would be 

around 5-10 degrees above normal for this time of year. The trough 

will push a weak cold front into northern Utah tonight, resulting in 

a very slight cooling trend for Tuesday, even as temperatures across 

southern Utah will continue to warm.  



Precipitation is expected to be minimal with the cold front, given 

weak dynamics and dry low levels. At best, there may be some 

sprinkles or very high elevation snow near the Idaho border. The 

HREF peaks in the Bear River Range with a 30% chance of 

precipitation of 0.05 inches or greater. 



.LONG TERM (After 12z/6 AM Wednesday)...The extended forecast begins 

with a gradual warm-up and continued dry conditions areawide as a 

ridge amplifies over the western US through the end of the work 

week. Temperatures soar well above average during this period, 

peaking upwards of 15-20 degrees above average on Friday. This 

translates to temperatures in the upper-70s to low-80s for most 

valley locations, and low-90s for lower Washington county. The first 

80+ degree day of the year is looking likely for Salt Lake City, 

with current guidance suggesting a greater than 95% chance for a 

high of 80 degrees or higher on Friday. 



Ensembles continue to support a signal for a troughing pattern to 

return this upcoming weekend, though still quite a bit of 

variability in the magnitude. Regardless, we are looking at some 

flavor of a cooling trend into early next week. Current guidance 

shows quite the spread in temperatures come Sunday, especially 

across northern Utah, where some locations show a 20 degree spread 

between the 25th and 75th percentile. Depending on the placement and 

magnitude of the trough, we could also see some increased winds and 

precipitation chances Sunday into early next week. 



&&



.AVIATION...KSLC...Overall VFR conditions expected to continue 

through the TAF period. Mid-to-high level cloud coverage increases 

after 18z today as a weak upper-level wave brushes the region, but 

otherwise conditions remain dry. Light southeasterly winds increase 

out of the south after roughly 18z, again becoming more light and 

southeasterly after 03z Tuesday. 



.REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions to prevail 

across the forecast area through the TAF period. A weak wave 

brushing northern Utah brings increasing mid-to-high level clouds 

this afternoon, with dry conditions prevailing outside of the 

potential for light showers in the vicinity of KLGU. Generally light 

and terrain driven winds prevail through the morning, trending more 

southerly for all regional terminals this afternoon and evening.



&&



.SLC WATCHES/WARNINGS/ADVISORIES...

UT...None.

WY...None.

&&



$$



Cheng/Whitlam



For more information from NOAA's National Weather Service visit...

http://weather.gov/saltlakecity