Area Forecast Discussion
Issued by NWS Cheyenne, WY

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FXUS65 KCYS 160846

Area Forecast Discussion
National Weather Service Cheyenne WY
246 AM MDT Wed Aug 16 2017

.SHORT TERM...(Today through Friday)
Issued at 246 AM MDT Wed Aug 16 2017

Shortwave moving across Wy now with some showers over parts of the
Panhandle. expect these to continue progressing southeast early
this morning and should clear the area by mid-morning. Subsidence
behind the wave will limit convection today with just some around
the mtns near the Colorado border this afternoon. Rest of the area
will see little if any instability today as a surface high settles
across the region. A west-northwest flow aloft will hold across
the region through Friday with the next shortwave looking to pass
by late Thursday. Some showers and a few storms possible with it,
mainly over the plains as return flow allows for some moisture
return. Warmer Thursday with seasonal temperatures continuing

.LONG TERM...(Friday night through Tuesday)
Issued at 246 AM MDT Wed Aug 16 2017

Upper ridge overhead for Friday night leading to dry conditions
over the CWFA. There is a weak shortwave moving through the ridge.
For now, will keep the forecast dry.

Some concern for Monday (Eclipse Day) as another shortwave moves
across the state. ECMWF and GFS do break out QPF Monday afternoon
across southeast Wyoming and Nebraska Panhandle. Morning hours
will be dry though. Clouds will be on the increase as the day
wears on.


.AVIATION...(For the 06Z TAFS through 06Z Wednesday night)
Issued at 1103 PM MDT Tue Aug 15 2017

Concerns for IFR conditions at KSNY and KAIA overnight. Though
wind direction not favorable for stratus development, the latest
HRRR is showing IFR conditions at both airports, lasting til 12Z.
Put TEMPO conditions at both KSNY and KAIA for IFR conditions.
Pretty wet out there from recent rains, so stratus could develop.
VFR elsewhere.


Issued at 246 AM MDT Wed Aug 16 2017

Drier conditions expected for the rest of the week with just
isolated afternoon showers and storms mainly around the mountains
today and Thursday. Non-critical weather conditions will keep
fire weather concerns low for the rest of the week.




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