Marine Weather and Tide Forecast for Hideout, UT

.SHORT TERM (Through 12Z/6AM Thursday)...A shortwave trough continues to move into the PacNW, as seen on satellite imagery late this afternoon, with a slight increase in moisture moving into northern Utah this evening. With weak lift associated with the approaching shortwave, expect light, high-based showers to develop later this evening across the West Desert, shifting eastward over the northern quarter of Utah and southwest Wyoming by early morning. These showers will be largely unimpactful with very little QPF, though periods of gusty outflow winds can't be ruled out with the strongest of showers. With daytime heating, showers will intensify and increase in coverage, though still will be moisture-starved with few impacts (QPF<0.10 inches). Southern Utah will remain dry during this period.

Temperatures will remain mild, around 5-10 degrees above normal through the short-term period. Highs near 70F are expected across most valleys...closer to 80F across southeast Utah and near Lake Powell, and reaching the mid-80s in St. George tomorrow afternoon.

.LONG TERM (After 12Z/6AM Thursday)...The long term will start with temperatures running 5-10 degrees above normal through Saturday as southerly flow remains in place ahead of a deepening trough arriving later in the weekend that will bring cooler and more unsettled weather for the second half of the long term period.

A shortwave trough will be moving by to the north on Thursday that will provide some weak ascent across northern Utah/SW Wyoming. There will be plenty of moisture for this shortwave to work with along with some instability that could trigger some convective activity during the day on Thursday across northern Utah and SW Wyoming.

By Friday a trough will start to dig into the western CONUS.
Diffluence ahead of the deepening trough will help to generate some weak ascent across portions of northern Utah and SW Wyoming that could lead to some isolated convection, primarily across the higher terrain. Southerly winds will also start to increase ahead of the approaching trough for both Friday and Saturday afternoon. This long duration gusty southerly flow could create some blowing dust initiating from the drier areas of eastern Nevada and southwest Utah. Additionally, these southerly winds will advect drier air from south to north with RH levels in the low teens to upper single digits across the southern 2/3rds of the forecast area.

The dry air in place on Saturday will help prevent convection from developing on. However, moisture streams back into the area on Sunday as the trough moves into the Great Basin. This looks like the best chance for widespread precipitation during the period, but guidance is a bit uncertain on whether the best forcing will be across southern Utah or further north. By Monday, we will be on the back end of the trough with steep lapse rates and diurnal showery convection across the area along with temperatures 5-10 degrees below normal.

AVIATION
KSLC...Overall VFR conditions prevail through the TAF period. Winds remain light out of the west-northwest this afternoon, transitioning more northerly into the early evening before clocking southeast after 06z Wednesday. Mid-to-high level cloud cover increases across the region late tonight into Wednesday as ahead of a weak weather system. Increasing instability associated with this system brings a slight chance for isolated high-based showers capable of producing gusty and erratic outflow winds Wednesday afternoon.

REST OF UTAH AND SOUTHWEST WYOMING
VFR conditions prevail for all TAF sites through the period. Gusty west-southwest winds are expected for southwest Utah and southwest Wyoming terminals this afternoon, but otherwise winds remain light and diurnally driven across the remainder of the region. There is a slight chance for high-based showers across the northern half of the airspace after roughly 22z Wednesday, with potential to produce gusty and erratic outflow winds.

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