332
FNUS75 KSLC 171204
FWSSLC
SPOT FORECAST FOR TRIAL LAKE DAM SAFETY INCIDENT 25...USBR
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
604 AM MDT THU JUL 17 2025
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON JULY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ATMOSPHERIC MOISTURE WILL BE INCREASING OVER THE
TRIAL LAKE AREA TODAY AND FRIDAY. SCATTERED SHOWERS WILL DEVELOP
IN THE VICINITY OF THE DAM THIS AFTERNOON, WITH THE POTENTIAL
PERSISTING INTO THE EVENING. IF A STORM MOVES OVER THE DAM, IT
WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAINFALL, WITH A 20
PERCENT CHANCE OF AMOUNTS OF 0.10 INCH OR MORE. MOISTURE WILL BE
MORE PLENTIFUL FRIDAY, SO THERE IS A RELATIVELY HIGH CHANCE
(50-60%) OF THE DAM SEEING AT LEAST SOME RAIN, WITH A 20-30
PERCENT CHANCE OF SEEING A QUARTER INCH OF RAIN OR MORE.
CONDITIONS ARE EXPECTED TO STEADILY DRY BEGINNING SATURDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
BECOMING PARTLY CLOUDY (50-60 PERCENT CLOUD
COVER). SCATTERED SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF LIGHTNING.28 PERCENT.
MAX TEMPERATURE.....70-74.
MIN HUMIDITY........26-30 PERCENT.
SURFACE WINDS (MPH).WEST TO SOUTHWEST WINDS 5-10 MPH.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF LIGHTNING.9 PERCENT.
MIN TEMPERATURE.....48-52.
MAX HUMIDITY........56-60 PERCENT.
SURFACE WINDS (MPH).WEST TO NORTHWEST WINDS 5-10 MPH SHIFTING TO
THE SOUTH LATE EVENING AND OVERNIGHT.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER) THEN
BECOMING MOSTLY CLOUDY (70-80 PERCENT CLOUD
COVER). NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PCPN......60 PERCENT.
CHANCE OF LIGHTNING.45 PERCENT.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........40-44 PERCENT.
SURFACE WINDS (MPH).SOUTHWEST WINDS 5-10 MPH.
FORECASTER...TRAPHAGAN
REQUESTED BY...JEFF BEATY
TYPE OF REQUEST...OTHER
.TAG 2518128.1/SLC
.DELDT 07/17/25
.FORMATTERVERSION 2.0.0
.EMAIL JBEATY@USBR.GOV
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