797
FNUS75 KGJT 212347
FWSGJT

Spot Forecast for Arches SAR...National Parks Service
National Weather Service Grand Junction CO
547 PM MDT Fri Jun 21 2024

Forecast is based on forecast start time of 1800 MDT on June 21.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
A line of thunderstorms will be moving into the park while
reading this. Heavy rain, plenty of cloud to ground lightning, and
wind gusts from 50 to 60 mph are expected. Some hail will also be
possible as this storm moves through (pea sized to half inch).
Ths showers and storms will quickly move out of the park in the
next hour. Once this main area of convection moves through, very
isolated showers, maybe a quick storm, will be possible overnight.
Tomorrow, residual moisure will allow some showers/storms to form
over the higher terrain but do not anticipate anything over the
park.

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent). Showers and
                    thunderstorms in the evening.
Min temperature.....58-63.
Max humidity........76-81 percent.
Chance of pcpn......90 percent.
Chance of thunder...90 percent.
Max apparent temp...76.
Surface winds.......Northeast winds around 10 to 15 mph in the evening
                    becoming downslope/downvalley 3 to 8 mph by
                    sunset.
Snowfall amount.....0.0 inches.

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
Max temperature.....88-93.
Min humidity........17-22 percent.
Chance of pcpn......10 percent.
Chance of thunder...5 percent.
Max apparent temp...88.
Surface winds.......Upslope/upvalley winds 3 to 8 mph.
Snowfall amount.....0.0 inches.

$$
Forecaster...Tom Renwick
Requested by...Devin Phillips
Type of request...SAR
.TAG 2416503.0/GJT
.DELDT 06/21/24
.FormatterVersion 2.0.0
.EMAIL devin.phillips@nps.gov