383
FXUS65 KBOU 101122
AFDBOU

Area Forecast Discussion
National Weather Service Denver/Boulder CO
422 AM MST Mon Nov 10 2025

.KEY MESSAGES...

- Dry conditions and above normal temperatures are expected across
the forecast area all week.

- A few hours of elevated fire weather conditions are expected
Tuesday afternoon over the plains.

- An upper trough is expected to move across the forecast area late
Friday and Saturday with a chance of precipitation for most areas.

&&

.DISCUSSION /Through Sunday/...
Issued at 155 PM MST Sun Nov 9 2025

Models show the northerly flow aloft tonight to gradually weaken
and become northwesterly by Monday afternoon as upper riding
moves slowly eastward towards Colorado. The northwesterly flow
aloft is expected to continue through Tuesday night at jet level
speeds of 30 to 50 mph. By Wednesday, the upper ridge is over the
CWA and the zonal flow aloft is progged to increase in speed.

The QG fields point to very weak or no synoptic scale energy over
the CWA tonight through Wednesday night. The QPF fields show no
measurable precipitation through Wednesday night either. Will keep
the dry weather going through Wednesday.

For temperatures, thickness fields point to daily highs getting 10 to
15 degrees F above normal much of the week.  There is an outside
chance of a record high or two being set through Thursday.

There will be elevated fire weather conditions; mainly Tuesday
afternoon, across the plains due to the warmth, dryness and fairly
breezy winds that are expected.

For the later days, Thursday through Sunday, zonal flow aloft on
Thursday increases and becomes southwesterly by Friday ahead of an
approaching upper trough.  The trough axis is over the western
Colorado border 00Z Saturday, then it moves across the CWA through
mid day Saturday. The GFS is stronger than the ECMWF with this
feature. This system will bring a chance of precipitation to the
CWA Friday into early Sunday, especially in the mountains. Strong
north-northwesterly flow aloft moves in early Sunday but then decreases
through the day.

&&

.AVIATION /12Z TAFS through 12Z Tuesday/...
Issued at 422 AM MST Mon Nov 10 2025

VFR to prevail through today and tonight. High clouds will increase
this morning, but ceilings will remain above 12,000 feet. Light
winds are expected today with south to southwest being the main
direction. Typical southerly drainage winds are expected at APA
and DEN this evening, after 02Z. Gustier west winds will be
possible towards to the foothills and at BJC with gusts to 30
knots possible this evening and overnight, beginning 02-04Z.


&&

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

&&

$$

DISCUSSION...66
AVIATION...12