034
FNUS75 KSLC 012209
FWSSLC

Spot Forecast for Mahogany...Northern Utah Interagency Fire Center
National Weather Service Salt Lake City UT
409 PM MDT Fri Aug 1 2025

Forecast is based on forecast start time of 1600 MDT on August 01.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Breezy southwest winds will remain in place through the remainder of
Friday afternoon and evening alongside dry conditions. Relative
humidity will struggle to recover on the lower slopes and above
while valley bottoms see much better humidity recovery above 50%.
During the overnight hours winds on ridges and higher exposure
slopes will continue to see southwest winds around 15-20 mph while
the mid slopes and below will see a transition to terrain driven
flows around an hour after sunset.

On Saturday, dry conditions will remain in place with just a
subtle increase in moisture. That said, humidity will remain
around 15% during the afternoon hours. Southwest winds will
prevail during the mid-to-late morning hours, transitioning to a
westerly flow during the afternoon hours. Strongest winds are
expected on south and west facing slopes and higher exposure
ridges during the afternoon hours where gusts up to around 20-25
mph are expected. Though moisture will be a bit higher than
Friday, elevated to near-critical conditions are still expected.
While no showers or thunderstorms are expected around the fire,
showers developing over northwest Utah may kick an outflow
boundary over the fire by the evening hours. If this occurs,
gusts of upwards of 30-40 mph will be possible, mainly from
the west to northwest direction.

.REST OF TODAY...

Sky/weather.........Mostly sunny (0-10 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....81-83.
Min humidity........13-15 percent.
Wind (20 ft)........West winds 12-14 mph with gusts around 20 mph
on the higher exposure slopes and ridges.
Mixing height.......13400 ft AGL.
   Climatology......90-95th Percentile.
Transport winds.....Southwest around 15 mph.

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Min temperature.....60-62.
Max humidity........23-25 percent on the lower slopes and above.
Around 40-50 percent at the valley floor.
Wind (20 ft)........Southwest winds 9-12 mph on ridges and upper slopes
with gusts up to 20 mphon the higher exposure ridges.
Terrain driven 3-7 mph for mid-slopes and below.
Mixing height.......10900 ft AGL decreasing to 0 ft AGL overnight.
Transport winds.....West around 14 mph becoming east around 12 mph
                    overnight.

.SATURDAY...

Sky/weather.........Mostly sunny (5-15 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....80-82.
Min humidity........Around 15 percent.
Wind (20 ft)........Southwest around 15 mph with gusts up to 25 mph
becoming West around 15 mph with gusts up to 25 mph,
especially on higher exposure slopes and ridges.
Mixing height.......12300 ft AGL.
   Climatology......80-90th Percentile.
Transport winds.....Southwest 15 to 20 mph.

$$
Forecaster...Webber
Requested by...H Simko
Type of request...WILDFIRE
.TAG 2519031.0/SLC
.DELDT 08/01/25
.FormatterVersion 2.0.0
.EMAIL utnuc@firenet.gov