Area Forecast Discussion
Issued by NWS Cheyenne, WY

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FXUS65 KCYS 230540
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
1030 PM MST Wed Nov 22 2017

.SHORT TERM...(This evening through Thursday)
Issued at 231 PM MST Wed Nov 22 2017

Quiet weather overnight through Thanksgiving Day with unseasonably
warm temperatures as a large upper ridge holds just west of the
Rocky mtn chain. Varying amounts of high clouds will be passing
across the area but will not hinder warming much. It will be
breezy to windy especially around the mountains Thursday afternoon
with winds edging upward late in the day.

.LONG TERM...(Thursday night through Wednesday)
Issued at 231 PM MST Wed Nov 22 2017

Main concerns this period will be a couple of strong wind events,
one thursday night into Friday and possibly another early next
week. 7H winds increase to 55 to 65kts across much of southeast
Wyoming tomorrow evening and hold through Friday morning as an
upper shortwave passes across the northern plains and increases
the pressure gradient. Winds easing slowly in the afternoon.
Gradient and Omega favor these strong winds reaching the surface
in the wind prone areas so have posted a high wind watch for those
areas tomorrow night into Friday. Adjacent areas may not mix as
well but will have to monitor later progs. Otherwise unseasonably
warm and mainly dry weather across the CWA through the weekend
before cooling some early next week as a stronger upper shortwave
passes by at that time with a period of strong winds possible with
it.

&&

.AVIATION...(For the 06Z TAFS through Thursday evening)

VFR conditions will prevail over the next 24 hours with intervals of
high level cloudiness. Light winds early Thursday morning will
become gusty in the afternoon, mainly impacting the SE Wyoming
terminals, with gusts up to 30 to 35 knots possible.

&&

.FIRE WEATHER...
Issued at 231 PM MST Wed Nov 22 2017

Fire weather concerns should be low with humidities remaining
above critical levels for the next few days at least. There will
be some windy periods at times, mainly around the mtns Thursday
night into Friday.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...

WY...High Wind Watch from Thursday evening through Friday morning for
     WYZ106-110-116-117.

NE...None.
&&

$$

SHORT TERM...RE
LONG TERM...RE
AVIATION...TJT
FIRE WEATHER...RE



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