Broomfield, Colorado 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

985
FXUS65 KBOU 091130
AFDBOU

Area Forecast Discussion
National Weather Service Denver/Boulder CO
530 AM MDT Fri May 9 2025

.KEY MESSAGES...

- Warm weather continues through early next week. Still a few late
  day showers and storms most days mainly over the higher terrain
  today and Saturday.

- Drier Sunday through Tuesday across the area but can`t rule out
  isolated showers/thunderstorms across the high country during
  the afternoon. The plans are likely to remain dry.


&&

.DISCUSSION /Through Thursday/...
Issued at 149 PM MDT Thu May 8 2025

Generally quiet across the forecast area this afternoon, as
ridging has started to develop to the north/west of the region.
There`s still quite a bit of mid-level moisture across the area,
with a piece of the previous trough/upper low still hanging back
across southern CO/northern NM. There`s been a few weak showers
across the eastern plains, with slightly deeper convective cloud
cover over the higher elevations. This activity should gradually
drift south-southeastward through the day following the weak
steering flow.

We`ll end the week with fairly quiet and warmer conditions, as the
upper ridge continues to build across the Rockies. Highs should
reach the 70s across the plains with mostly clear skies. The
increase instability/steepening lapse rates over the high country
should allow for widely scattered showers and thunderstorms to
develop in the afternoon.

Our warming trend is likely to continue this weekend into next
week. The upper level ridge should strengthen a bit more this
weekend and will likely shift a bit more to the east as a broad
trough approaches the PacNW coastline. Highs should again reach
the 70s to low 80s on Saturday, with 80s likely by Sunday through
Tuesday. As the trough approaches, southwesterly flow aloft
should strengthen, leading to a potential increase in fire danger
for most of the forecast area.

The trough should race across the intermountain west by early/mid
week, though guidance still keeps the track to our north, leaving
us on the drier/windier side. Both deterministic and ensemble have
a good signal for cooler temperatures for the latter half of next
week, but it`s too early to worry too much about that timeframe.

&&

.AVIATION /12Z TAFS through 12Z Saturday/...
Issued at 530 AM MDT Fri May 9 2025

VFR through Saturday and generally light winds. We do not expect
any significant wind shifts from gust fronts through the period.
Today, winds will go light and out of the west around 14Z, then
north by 17Z, and northeast 10-14 kts around 20Z at DIA. Similar
wind patterns are expected at BJC and APA but with lighter wind
speeds. Tonight drainage winds (S to SSW at APA and DEN) will
resume after 04Z. BJC should be under 5 kts out of the west all
night.

On Saturday the southerly drainage winds should gradually turn SE
to E by midday and remain out of the east much of the afternoon.
Speeds should be 10 kts or less during the day.

&&

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

&&

$$

DISCUSSION...Hiris
AVIATION...Schlatter