Area Forecast Discussion
Issued by NWS Cheyenne, WY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
FXUS65 KCYS 220527

Area Forecast Discussion
National Weather Service Cheyenne WY
1025 PM MST Wed Feb 21 2018

.SHORT TERM...(This evening through Thursday night)
Issued at 230 PM MST Wed Feb 21 2018

Not as cold tonight as the cold arctic high over the plains moves
east and return flow allows for warmer air to spread over the
area.  Will also see increasing clouds as a weak impulse lifts
northeast towards the CWA tonight and Thursday. This should bring
some snow showers to the higher mtns overnight but only light
accumulations expected. Flurries and snow showers should spread
into mainly the southeast part of the Panhandle Thursday as the
impulse ejects into the high plains. Still remaining quite cool
Thursday given cloudiness and snow cover with max temps generally
in the 20s. Cold again Thursday night as another push of colder
air settles down the high plains but not as cold as the last
surge. Scattered snow showers continuing mainly over the western
parts of the CWA as more impulses lift across in the southwesterly
upper flow.

.LONG TERM...(Friday through Wednesday)
Issued at 230 PM MST Wed Feb 21 2018

Cool and unsettled weather will hold over the CWA Friday through
Sunday as a couple upper troughs move by the region, one Friday
night and the next on Sunday. Most pcpn should be confined to the
mtns but some snow showers should move over the lower elevations
mainly Friday night. Temps remaining below seasonal averages
through Sunday under a generally cyclonic upper flow regime over
much of the western and central CONUS. Lee troughing deepens over
the high plains Sunday night which could produce a strong wind
event for the wind-prone areas of southeast Wyoming before easing
Monday. Mild on Monday then the next upper trough moves into the
area for Tuesday and Weds bringing cooler temps and some snow


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

VFR conditions expected tonight. MVFR-IFR CIGS and VIS with light
snow are possible after 12z Thursday morning, mainly across the
eastern plains. The most favorable area to see light snow and IFR
will be KSNY, so kept IFR conditions in that TAF. Any lingering
snowfall at 18z should push east of the area in the afternoon.


Issued at 230 PM MST Wed Feb 21 2018

No fire weather concerns expected through the upcoming weekend
with weather factors and fuels remaining non-critical for the most
part. Cool temperatures will prevail through the period. Some
windiness should occur on Sunday.




FIRE WEATHER...RE is the U.S. government's official web portal to all federal, state and local government web resources and services.