Latest ZFP from WFO RIW

		
National Weather Service Local Forecast for Star Valley Ranch
Updated: 30 Nov 23:11 pm MST

Tonight... Partly cloudy, with a low around 27. East southeast
wind around 8 mph. 

Wednesday... Mostly sunny, with a high near 46. Southeast wind
5 to 8 mph becoming southwest in the afternoon. 

Wednesday Night... Mostly clear, with a low around 28. South
southeast wind around 8 mph. 

Thursday... Sunny, with a high near 53. South southeast wind
around 6 mph becoming southwest in the afternoon. 

Thursday Night... Mostly clear, with a low around 29. South
southeast wind 3 to 5 mph. 

Friday... Sunny, with a high near 50. South southeast wind
around 5 mph becoming light and variable. 

Friday Night... Mostly clear, with a low around 27. West
southwest wind around 5 mph becoming south in the evening. 

Saturday... Mostly sunny, with a high near 49.

Saturday Night... Partly cloudy, with a low around 27.

Sunday... A 20 percent chance of snow.  Mostly sunny, with a
high near 43.

Sunday Night... Mostly cloudy, with a low around 26.

Monday... A chance of snow.  Mostly cloudy, with a high near
42.

Monday Night... Snow likely.  Mostly cloudy, with a low around
29.

Tuesday... A chance of snow.  Mostly cloudy, with a high near
39.

		

Latest AFD from WFO RIW

		
282 
FXUS65 KRIW 010519
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
1019 PM MST Tue Nov 30 2021

.SHORT TERM...(This evening through Wednesday night)
Issued at 114 PM MST Tue Nov 30 2021

The remaining piece of a shortwave is passing through now, holding
temperatures much lower than yesterday. Radar is showing some
returns in the Big Horn Basin currently, but local webcams show
this is only falling as virga. This buckle is quickly moving to
the southeast this afternoon, and the ridge will build right back
across the region by tomorrow morning. This will bring back the
very warm temperatures back to the region, with many record highs
threatened. Another sfc low racing across southern Canada on
Wednesday will keep the local gradient tightened, so expect
another day of Wyoming windy for the usual prone places, like the
Cody foothills and the Wind Corridor.

.LONG TERM...(Thursday through Tuesday)
Issued at 114 PM MST Tue Nov 30 2021

Northwest flow will continue to remain in place north of the area. 
This will keep the weather mostly quiet with the exception of well-
above average surface temperatures. Mostly highs in the low to mid-
50s and overnight lows in the mid-20s with increased wind in the 
wind prone areas can be expected and remain that way through the 
weekend.

As Sunday approaches, a subtle shortwave is progged to develop and 
drag a surface front through the area. This will bring increasing PoP 
to the western mountains and cool temperatures a little bit as CAA 
sets up post-frontal. Sunday appears to be the start of an active 
period as the NBM, GFS and CMC hint at another system potentially 
impacting the area for Tuesday. There's still a lot of variability 
with this system as the time frame is so far out; however, this 
looks to bring more seasonal weather and increasing chances for 
widespread precipitation.

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday)
Issued at 957 PM MST Tue Nov 30 2021

VFR conditions will occur through the period. A gusty wind will 
continue at KCPR, KCOD, and KRKS through at least 00Z Thursday. KRIW 
will see a gusty wind through about 15Z, then decrease. Otherwise, 
high and mid level clouds will move through the region.

Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for 
the latest information on icing and turbulence forecasts.

&&

.FIRE WEATHER...
Issued AT 114 PM MST Tue Nov 30 2021

Minimal to no precipitation forecast for all areas through this 
weekend, with High pressure ridge in place. Gusty winds will again
be an issue the remainder of today and on Wednesday, with frequent
gusts above 30 mph for the I-25 corridor and in the Cody 
vicinity. 

&&

.RIW WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

SHORT TERM...Straub
LONG TERM...Vorst
AVIATION...AR
FIRE WEATHER...Straub