916
FNUS75 KSLC 302012
FWSSLC

Spot Forecast for Narrows SAR...Zion National Park
National Weather Service Salt Lake City UT
212 PM MDT Sun Jun 30 2024

Forecast is based on forecast start time of 1400 MDT on June 30.
If conditions become unrepresentative...contact the National Weather
Service.

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
MONDAY EVENING...

.DISCUSSION...
Early this afternoon, Zion NP is sitting on the far western
periphery of some limited moisture. A few cumulus buildups over
and just east of the Park, but not to the west of the Park,
delineate this moisture gradient. As such, cannot rule out an
isolated shower or thunderstorm developing over or near Zion (20%
chance), mainly over the next couple of hours through around 4PM.
Currently the cumulus in the area appear relatively flat and
aren`t showing any immediate signs of development. If these
cumulus don`t develop before around 4-5pm, the chance of a
shower/thunderstorm over the Park quickly drops to near zero this
evening. With the limited moisture in place and fast flow, if any
storms develops it would be moving rather quickly and would be
unlikely to produce much rainfall, limiting the chance of any
flash flooding, which is a very low (<5%) chance at this time.

Outside of that near term potential, hot, dry and breezy
conditions will prevail for the rest of today into this evening,
and will redevelop again on Monday. Southerly winds will funnel up
the Narrows this afternoon and again tomorrow, with lighter
northerly drainage winds resuming overnight. Wind gusts will be
slightly stronger over the exposed ridgelines above the canyon, up
to 35 mph today and up to 30 mph on Monday. Slightly more
westerly component to the flow on Monday is expected to keep the
moisture east of the Park, thus largely precluding any chance for
a shower or thunderstorm on Monday.

.REST OF TODAY...

Sky/weather.........Mostly sunny (5-15 percent cloud cover).
Chance of pcpn......20 percent through 4-5PM then near zero. Flash
                    flood potential is very low(<5%), but not zero.
Max temperature.....91-93.
Min humidity........14-16 percent.
Surface winds (mph).South winds 12-16 mph becoming southwest late
                    in the afternoon. Gusts up to 25 mph, except up
to 35 mph on exposed ridgelines above the canyon.

.TONIGHT...

Sky/weather.........Clear (0-10 percent cloud cover).
Chance of pcpn......0 percent.
Min temperature.....57-59.
Max humidity........45-47 percent.
Surface winds (mph).Southwest winds 6-12 mph with gusts to around
                    25 mph this evening (with gusts to near 35 mph ridge tops)
    becoming north 2-5 mph overnight, except up to 15 mph
over ridgetops.

.MONDAY...

Sky/weather.........Sunny (0-10 percent cloud cover).
Chance of pcpn......5 percent.
Max temperature.....87-89.
Min humidity........15-17 percent.
Surface winds (mph).North winds 2-5 mph becoming southwest 6-15
                    mph with gusts to around 25 mph in the late
                    morning and afternoon, except up to 30 mph
over ridgetops.

$$
Forecaster...Church
Requested by...Kyle Knight
Type of request...SAR
.TAG 2416963.0/SLC
.DELDT 06/30/24
.FormatterVersion 2.0.0
.EMAIL Zion_disaptch@nps.gov