280
FNUS75 KSLC 220110
FWSSLC

Spot Forecast for Sewer Pump Station Near Rendezvous...Rich County Emergency Management
National Weather Service Salt Lake City UT
710 PM MDT Tue Jul 21 2026

Forecast is based on forecast start time of 2000 MDT on July 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...An active monsoonal pattern remains ongoing across the
region. There will remain around a 20-30% chance of showers and
thunderstorms through around 10 PM, likely followed by a relative
lull, with shower chances then ramping back up after 2 AM through
sunrise or so. Thereafter, thunderstorm chances quickly increase
late morning and remain elevated through evening as widespread
scattered convective development is anticipate across Utah.
Activity will then once again trend more showery in nature
following sunset Wednesday, with shower activity gradually
trending downward after midnight. By Thursday the area will see
some return of drier air, which will allow the daily precipitation
chances to drop, and thunderstorm activity to become more
isolated in nature. Any stronger thunderstorm that moves overhead
will bring potential for brief heavy rain on the order of 1" per
hour, if not slightly more. Shower activity will tend to have
lower and more manageable rainfall rates up to around 0.25" per
hour.


.REST OF TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent cloud cover).
                    Chance of showers and slight chance of
                    thunderstorms.
Chance of pcpn......50 percent.

.WEDNESDAY...

Sky/weather.........Partly cloudy (35-45 percent cloud cover) then
                    becoming mostly cloudy (70-80 percent cloud
                    cover). Chance of showers early in the
                    afternoon. Chance of thunderstorms in the
                    afternoon. Showers likely late in the
                    afternoon.
Chance of pcpn......70 percent.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (75-85 percent cloud cover) then
                    becoming partly cloudy (55-65 percent cloud
                    cover). Showers likely and chance of
                    thunderstorms early in the evening, then slight
                    chance of thunderstorms late in the evening.
                    Chance of showers in the late evening and
                    overnight.
Chance of pcpn......60 percent.

.THURSDAY...

Sky/weather.........Mostly sunny (25-35 percent cloud cover) then
                    becoming partly cloudy (30-40 percent cloud
                    cover). Slight chance of showers and
                    thunderstorms in the afternoon.
Chance of pcpn......20 percent.

$$
Forecaster...Warthen
Requested by...County Emergency Manager
Type of request...HAZMAT
.TAG 2617919.0/SLC
.DELDT 07/21/26
.FormatterVersion 2.0.0
.EMAIL jstocking@richcounty.gov