Area Forecast Discussion
Issued by NWS Riverton, WY

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000
FXUS65 KRIW 100448
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
1048 PM MDT Wed Aug 9 2017

.SHORT TERM...(This evening through Saturday)
Issued at 249 PM MDT Wed Aug 9 2017

A series of cool low pressure troughs moving across the Pacific
Northwest, the Northern Rockies and Southern Canada will converge
with warmer moist southwest flow on the west side of a flat high
pressure ridge over the Desert Southwest and Great Basin, over
Wyoming.  This will keep clouds and scattered showers with
isolated scattered thunderstorms over the area through Saturday.
Precipitation will be greatest over the mountains.  This will keep
temperatures depressed and relative humidity elevated.  With low
level north to east flow winds will be rather light outside of
thunderstorms which may produce strong erratic wind gusts.

.LONG TERM...(Thursday night through Wednesday)
Issued at 249 PM MDT Wed Aug 9 2017

the pattern with a series of cool low pressure troughs moving across
the Pacific Northwest, the Northern Rockies and Southern Canada
converging with warmer moist southwest flow on the west side of a
flat high pressure ridge over the Desert Southwest and Great Basin,
over Wyoming will continue through Wednesday.  This will keep clouds
and scattered showers with isolated scattered thunderstorms over the
area through Saturday.  Precipitation will be greatest over the
mountains.  This will keep temperatures depressed and relative
humidity elevated.  With low level north to east flow winds will be
rather light outside of thunderstorms which may produce strong
erratic wind gusts.

&&

.AVIATION...(For the 06Z TAFS through 06Z Friday)
Issued at 1040 PM MDT Wed Aug 9 2017

Scattered showers and isolated thunderstorms will end by 11Z.
VFR conditions will prevail through Thursday night. New showers
and storms will form after 19Z Thursday over the region and continue
to 04Z Friday. Local MVFR visibilities are possible due to heavy
with some storms. Mountains will be obscured at times. Showers will
become isolated around 06Z Friday.

&&

.FIRE WEATHER...
Issued AT 249 PM MDT Wed Aug 9 2017

A series of cool low pressure troughs moving across the Pacific
Northwest, the Northern Rockies and Southern Canada will converge
with warmer moist southwest flow on the west side of a flat high
pressure ridge over the Desert Southwest and Great Basin, over
Wyoming.  This will keep clouds and scattered showers with
isolated scattered thunderstorms over the area through Saturday.
Precipitation will be greatest over the mountains.  This will keep
temperatures depressed and relative humidity elevated.  With low
level north to east flow winds will be rather light outside of
thunderstorms which may produce strong erratic wind gusts.
Mixing heights and transport winds will combine for generally
very good to excellent smoke dispersal from  late morning through
early evening each day.

&&

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

&&

$$

SHORT TERM...Baker
LONG TERM...Baker
AVIATION...AR
FIRE WEATHER...Baker



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