567
FNUS75 KSLC 171604
FWSSLC
SPOT FORECAST FOR BRYCE CANYON GEOLOGY FESTIVAL...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1004 AM MDT THU JUL 17 2025
FORECAST IS BASED ON FORECAST START TIME OF 1000 MDT ON JULY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A PUSH OF MONSOONAL MOISTURE INTO SOUTHERN UTAH
BEGINS TODAY, WITH WIDESPREAD SHOWERS AND SCATTERED THUNDERSTORMS
EXPECTED THIS AFTERNOON AND EVENING. WINDS ALOFT WILL BE GENERALLY
LIGHT, SO STORMS THAT DEVELOP THIS AFTERNOON WILL LIKELY HAVE
LITTLE MOVEMENT AND THEREFORE MAY PRODUCE HEAVY RAINFALL RATES
UNDER STRONGER CELLS. GUSTY OUTFLOW WINDS TO 40 MPH ARE POSSIBLE
EARLY THIS AFTERNOON AS STORMS FIRST DEVELOP. THIS MONSOONAL
MOISTURE WILL LINGER THROUGH FRIDAY AND SATURDAY, THOUGH COVERAGE
LOOKS LESSER AS GREATEST MOISTURE SURGES NORTH. HOWEVER, CHANCES
FOR HEAVY RAIN IN ADDITION TO LIGHTNING IN THE VICINITY OF THE
EVENT WILL REMAIN.
REST OF TODAY
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER) THEN
BECOMING MOSTLY CLOUDY (70-80 PERCENT CLOUD
COVER). PATCHY SMOKE LATE IN THE MORNING.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS
BETWEEN NOON AND 8 PM.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF LIGHTNING.60 PERCENT.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........30-32 PERCENT.
SURFACE WINDS (MPH).NORTHWEST WINDS 6-9 MPH BECOMING SOUTH 8-10 MPH
EARLY IN THE AFTERNOON, THEN BECOMING WEST LATE
IN THE AFTERNOON. GUSTY OUTFLOW WINDS TO 40 MPH
POSSIBLE NEAR THUNDERSTORMS IN THE AFTERNOON.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER) THEN
BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
COVER). SCATTERED SHOWERS AND THUNDERSTORMS
EARLY IN THE EVENING, THEN ISOLATED RAIN
SHOWERS THROUGH AROUND 2 AM.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF LIGHTNING.25 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........84-86 PERCENT.
SURFACE WINDS (MPH).NORTH WINDS 8-10 MPH BECOMING NORTHWEST 4-8 MPH
IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT CLOUD COVER) THEN
BECOMING MOSTLY CLOUDY (75-85 PERCENT CLOUD
COVER). ISOLATED SHOWERS AND THUNDERSTORMS LATE
IN THE MORNING. SCATTERED RAIN SHOWERS AND
THUNDERSTORMS AFTER NOON.
CHANCE OF PCPN......60 PERCENT.
CHANCE OF LIGHTNING.50 PERCENT.
MAX TEMPERATURE.....77-79.
MIN HUMIDITY........29-31 PERCENT.
SURFACE WINDS (MPH).WEST WINDS 4-8 MPH BECOMING SOUTHWEST 8-11 MPH
WITH GUSTS TO AROUND 20 MPH IN THE AFTERNOON.
GUSTY OUTFLOW WINDS TO 40 MPH POSSIBLE NEAR
THUNDERSTORMS IN THE AFTERNOON.
FORECASTER...WHITLAM
REQUESTED BY...BJ CLUFF
TYPE OF REQUEST...OTHER
.TAG 2518168.0/SLC
.DELDT 07/17/25
.FORMATTERVERSION 2.0.0
.EMAIL BJ_CLUFF@NPS.GOV
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