Marine Weather and Tide Forecast for Big Water, UT

DISCUSSION
A cool northwesterly flow aloft remains in place over Utah this evening as the last storm system continues to exit across the Rockies into the Great Plains. Weak showers that had continued across northeast Utah and southwest Wyoming this afternoon and evening along a weak trailing wave on the backside of the mean trough have now dissipated. Mostly clear skies can be expected across the area tonight, which will result in excellent radiative cooling bringing widespread freezing conditions once again. More localized freezing conditions are expected for tomorrow night, primarily across eastern Box Elder County and the valleys of central Utah down through Cedar City. As such, a Freeze Watch has been issued to cover this threat.

High pressure building in for the weekend into early next week will bring a warming trend back to the area, along with mostly dry conditions. Above normal temperatures will return by Sunday, with temperatures peaking Monday through Tuesday when valleys will see highs in the mid 70s to low 80s except mid to upper 80s in the lower valleys of far southern Utah. Latest NBM guidance has a 69% chance of SLC reaching 80F on Monday and a 92% chance on Tuesday.

A series of weather systems is expected to rotate through Utah Wednesday through at least the end of next week. This will bring another cooling trend with a period of unsettled weather to the area. While there is still a fair amount of uncertainty regarding the details of the timing of each individual feature, it does look like southerly winds will increase beginning on Tuesday ahead of the first feature to move through, and snow levels during this unsettled period will likely remain above 6000-7000 ft.

AVIATION
KSLC...No significant weather expected. Skies to remain VFR with some mid to high level clouds through the TAF period. Winds anticipated to remain light (generally less than 10 kts) with winds shifting NW ~19-21Z Sat, and back SE ~02-05Z thereafter.

REST OF UTAH AND SOUTHWEST WYOMING
Minimally active conditions expected through the TAF period. Clouds will continue to diminish overnight, with VFR skies prevailing through the day with only a mix of mid to high level cloud cover filtering through. At most area terminals winds will remain light (less than 15 kts) with directional shifts at diurnally normal times. One exception will be KSGU which will see some continued NE winds draining down terrain.

SLC WATCHES/WARNINGS/ADVISORIES
UT...Freeze Warning until noon MDT Saturday for UTZ102>106-114>116- 118>122-129-130.

Freeze Watch from Saturday evening through Sunday morning for UTZ103-114>116-118>122.

WY...None.