Weather Service Report


689 
FXUS65 KCYS 230909
AFDCYS

Area Forecast Discussion
National Weather Service Cheyenne WY
309 AM MDT Thu Sep 23 2021

.SHORT TERM...(Today through Friday night)
Issued at 300 AM MDT Thu Sep 23 2021

An area of upper level ridging continues to shift east early this
morning with an approaching compact trough moving across ID per 
latest WV imagery. This low looks to dive south across UT later 
today, but will still pass a weak cold front through the area. 
This front currently entering northwest Wyoming will pass through 
the CWA later today. Main thing of note will be gusty northerly 
winds approaching 25 MPH, especially for areas east of the Laramie
Range which could result in elevated fire weather conditions this
afternoon. Minimal drop in 700mb temps behind another front Friday
morning will keep afternoon temperatures tomorrow only a few 
degrees lower than today, sitting right around 70. 

.LONG TERM...(Saturday through Wednesday)
Issued at 300 AM MDT Thu Sep 23 2021

Upper ridge to build back over the Rockies beginning Saturday and
continuing through Sunday. Warm and dry weather expected with the
ridging.

Not really seeing any chances for precipitation until Tuesday
night when ridge axis moves east and an approaching trough moves
into the Pacific Northwest. 700mb temperatures fall to -3C...so
looks like a good bet for mountain snow. Will continue to monitor.

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday night)
Issued at 1206 AM MDT Thu Sep 23 2021

VFR conditions for area terminals expected through the forecast
period with FEW passing high clouds. Gusty winds around 25 kts 
expected Thursday starting around late morning. 

&&

.FIRE WEATHER...
Issued at 300 AM MDT Thu Sep 23 2021

Elevated fire weather conditions this afternoon, especially 
across the southern Nebraska Panhandle. Afternoon RHs will drop 
into the teens for most of the area and gusty winds expected 
around 20 MPH. Weak frontal passage during the afternoon will 
shift wind directions more northerly. Extended period of dry 
weather continues headed into the weekend with above normal 
temperatures and little chance of wetting rains. 

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...None.
NE...None.
&&

$$

SHORT TERM...MB
LONG TERM...GCC
AVIATION...MB 
FIRE WEATHER...MB

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Western Regional Climate Center, wrcc@dri.edu