579
FXUS65 KBOU 030613
AFDBOU

Area Forecast Discussion
National Weather Service Denver/Boulder CO
1113 PM MST Mon Nov 2 2026

.KEY MESSAGES...

- Light snow showers in the mountains tonight, with additional
  snow accumulations of 2 inches or less. Slick travel in spots
  through early Tuesday morning.

- Scattered rain showers tonight for the plains. A few snowflakes
  to a dusting possible for the Palmer Divide and northern Weld
  County. Very windy for the plains through early Tuesday morning.

- Another chance for some rain and snow for the mountains on
  Wednesday bringing light precipitation amounts.

&&

.DISCUSSION /Through Monday/...
Issued at 1106 PM MST Mon Nov 2 2026

Current radar shows rain showers ongoing for most of the plains with
the heaviest rain over western Morgan County and eastern Adams
County. Some light snow is occurring for the mountains, mainly north
of I-70. With deep northerly flow still in place, rain/snow showers
will remain possible through early Tuesday morning. For the high
country, we expect very little additional accumulation of snow
(perhaps an inch or two at most), so the Winter Weather Advisory was
cancelled earlier this evening. Some light rain showers will remain
possible for the Palmer Divide, eastern plains, and into most of the
Denver metro. High-resolution guidance (including one of the last
NAMnest and NAM runs) shows an additional 0.1"-0.2" of rain possible
for western Washington county and adjacent areas with some isolated
slightly higher amounts possible through the overnight. The chance
remains for some snowflakes to mix in for the Palmer Divide to as
far north as Akron as well as far northern Weld County given the
decreasing snow levels. A dusting is possible for the Palmer
Divide due to a trend of slightly lower snow levels tonight. The
chance for precipitation should end between 6am and 9am Tuesday.

Gusty winds remain likely on the plains for the next few hours with
some gusts of 50-55 mph still possible. Given the gusty winds, there
is a near zero chance for fog this morning in northern Colorado
unlike the last several days. Wind gusts of 30-35 mph will remain
possible on Tuesday afternoon for the eastern plains. Otherwise,
Tuesday will be a temperate day and feature warmer temperatures and
more sun than Monday with upper-level ridging in control for our
area. Highs should reach the mid 50s for the plains.

Wednesday brings the next storm system to our area, but it will move
through quickly. A trough is forecast to move across Colorado from
Wednesday afternoon through early Thursday. This system will lack in
moisture, so any precipitation looks light in nature. Areas of the
high country along the I-70 corridor and south look to be most
favored for any light snow accumulations. Ensemble guidance is in
good agreement that these locations should receive 1-3 inches of
snow with perhaps some localized higher amounts at the highest
elevations. DESI probabilities currently show that the chances for
the heaviest snow in our area will be in the Mosquito Range. Some
light rain showers will be possible for the Palmer Divide and our
southeastern counties with an upslope component as the trough
passes. The rest of the plains should stay dry. Any precipitation
looks to quickly end on Wednesday night.

From Thursday onward, ridging builds into our area once again. A
trough could move through the upper-level flow to our north on
Friday. For now, we expect any meaningful precipitation chances to
remain north of our area as moisture continues to be lacking.
Guidance is in better agreement that another trough should move in
from Canada down into the Great Plains just to our northeast towards
the end of the weekend. This could introduce some gusty winds on
Sunday for the eastern plains if momentum transfer is maximized as
winds aloft could be rather strong. Otherwise, Thursday through
Monday looks dry for our area. Temperatures should remain near
average- in the upper 50s for the plains- through at least
Saturday. The ridge look to strength and build into our area for
Sunday and Monday, so temperatures could even reach the low to mid
60s for the plains on these days.


&&

.AVIATION /06Z TAFS through 06Z Wednesday/...
Issued at 1010 PM MST Mon Nov 2 2026

Light rain showers will continue overnight with ceilings briefly
lowering to 2500 ft thru 10z. Otherwise expect ceilings to be in
the 5000-6000 ft range.  Winds will remain from the north with
gusts at APA and DIA from 20 to 25 mph. BJC will have lighter
winds.  After 10z there will still be a chc of light showers
so have kept in a prob30 thru 15z. Ceilings will remain in the
5000-6000 ft range. North winds will decrease by by 12z.

By 15z on Tue, clouds will sct out with winds staying frm the
north. By 20z winds will have a more NE direction and then
transition to easterly by 00z.

&&

.BOU WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION...MV
AVIATION...RPK