738
FXUS65 KGJT 202359
AFDGJT

Area Forecast Discussion
National Weather Service Grand Junction CO
559 PM MDT Sun Sep 20 2026

.KEY MESSAGES...

- Wet weather returns to the region on Tuesday with showers and
  storms possible each day through the end of the work week.

&&

.DISCUSSION...
Issued at 1259 PM MDT Sun Sep 20 2026

DRIER THROUGH MONDAY:

Drier conditions and cooler, more seasonable temperatures
remain in place through Monday as high pressure builds over the
Great Basin. Enough moisture may still linger for some isolated
showers and storms over the higher terrain, but those chances
are very low.

PRECIPITATION CHANCES RETURN TUESDAY ONWARD:

A low pressure system will move onto the Great Basin over the
next 24-36 hours. This shift will result in moisture-rich
southwesterly flow setting up over the Intermountain West. At
the same time, high pressure sets up over Texas, drawing Gulf
moisture into the Desert Southwest. As a result, wet weather
returns to the forecast on Tuesday with storm coverage ebbing
and flowing throughout the week. Multiple days of precipitation
are likely, especially over the southern Mountains.

&&

.AVIATION /00Z TAFS THROUGH 00Z TUESDAY/...
Issued at 556 PM MDT Sun Sep 20 2026

VFR conditions will prevail over the next 24 hours with some low
cumulus across KHDN and KASE but these should clear out after
sunset with clearing skies overnight. Winds will continue
gusting 20 to 25 mph through sunset at times before becoming
light and terrain driven. There is a 20% chance for low clouds
to develop early Monday morning at KHDN that could cause ILS
breakpoints to be reached, but confidence was too low to include
in the TAF at this time. Otherwise, expect mostly clear skies
with lighter winds on Monday.

&&

.GJT WATCHES/WARNINGS/ADVISORIES...

CO...None.
UT...None.

&&

$$

DISCUSSION...KAA
AVIATION...TGJT