Area Forecast Discussion
Issued by NWS Denver/Boulder, CO

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FXUS65 KBOU 210150

Area Forecast Discussion
National Weather Service Denver/Boulder CO
750 PM MDT Thu Oct 20 2016

Issued at 750 PM MDT Thu Oct 20 2016

High clouds over Wyoming will move south into Colorado overnight
in the northwest flow aloft. The increase in cloud cover and
warmer airmass will result in warmer overnight lows tonight. Made
slight changes to line up with current trends...otherwise no other
changes are expected.


.SHORT TERM...(This evening through Friday)
Issued at 242 PM MDT Thu Oct 20 2016

There are a few wisps of high clouds over the CWA right now. The
strong northwesterly flow aloft will decrease over the CWA as an
upper ridge axis moves into western Colorado by the end of
Friday. The synoptic scale energy in benign tonight and Friday. A
pretty weak pressure gradient is progged in the lower levels and
the boundary layer winds should adhere to normal diurnal patterns.
There is a bit of upper level moisture on the cross sections
tonight into Friday morning, then almost none the rest of Friday.
No pops. For temperatures, Friday`s highs are 5-7 C warm then this

.LONG TERM...(Friday night through Thursday)
Issued at 242 PM MDT Thu Oct 20 2016

Upper level high pressure over the Rocky Mountain Region will bring
above normal temperatures and dry weather to north central and
northeastern Colorado through the weekend. On Monday...the upper high
shifts east over the central plains an upper trough
approaches the west coast of the United States. This pattern places
Colorado under a light to moderate southwesterly flow aloft.
Moisture caught up in this flow...combined with some orographic
lift...should result in scattered rain and snow showers in the
mountains. The plains should be dry and a little cooler due to
increased cloud cover. Slightly cooler weather is expected on
Tuesday as an upper level shortwave moves across the state and a
weak cold front moves across the northeastern plains. The latest GFS
run has trended upward with qpf on the plains...therefore have
raised pops somewhat for those areas. Models show broad upper ridge
building over the central and western U.S. by Wednesday. Model
guidance may be under estimating Thursday`s highs...therefore have
bumped temperatures up a couple of degrees, This still may be too
low and later shifts may need to raise temps more.


.AVIATION...(For the 00Z TAFS through 00Z Friday evening)
Issued at 750 PM MDT Thu Oct 20 2016

VFR conditions will continue tonight and Friday with highs clouds
over the area at times. Winds will settle at a normal southerly
direction at KDEN and KAPA by 05z. For Friday...light winds will
become easterly by 18z.




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