Area Forecast Discussion
Issued by NWS Riverton, WY

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000
FXUS65 KRIW 111655
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
1055 AM MDT Wed Oct 11 2017

.SHORT TERM...(Today through Friday night)
Issued at 230 AM MDT Wed Oct 11 2017

Warming will occur today as southwest flow aloft increases
bringing limited moisture producing some clouds, most numerous in
the north. the clouds will modify overnight low temperatures.
Breezy to windy ridge top winds will result also, from the
increased winds aloft with the winds spreading over the east
slopes of the mountains into the foothills and through the wind
corridor from Sweetwater through Natrona counties. Some light
snow showers will move in across the northern mountains on
Wednesday afternoon and Wednesday night. Thursday should be dry
with a break in the moisture with increased windy areas. A
stronger Pacific trough will bring increased rain and snow showers
to the western and northern mountains on Friday with winds
continuing to increase.

.LONG TERM...(Saturday through Wednesday)
Issued at 230 AM MDT Wed Oct 11 2017

Models are showing a trough and associated cold front sweeping
across the area Saturday. This could result in a quick shot of
mountain snow, and valley rain/snow mix. Precipitation amounts are
expected to be light. A mainly dry zonal flow is then expected
early next week with seasonal to slightly above average
temperatures with the main storm track remaining in Canada. This
could change by the end of the next week as models show the
potential for the pattern to amplify a bit.

&&

.AVIATION...For the 18Z TAFS through 18Z Thursday afternoon
Issued at 1022 AM MDT Wed Oct 11 2017

VFR conditions will occur through the period. Gusty winds will
occur at many terminal sites today, with the wind decreasing
after 00Z in most locations. A cold front will push into NW WY
around 00Z and this front will push eastward during the evening
and the overnight hours. A few rain and snow showers will occur
over NW WY from 00Z through 12Z Thursday.

&&

.FIRE WEATHER...
Issued AT 230 AM MDT Wed Oct 11 2017

Warming will occur today as southwest flow aloft increases bringing
limited moisture producing some clouds, most numerous in the
north. the clouds will modify overnight low temperatures. Breezy
to windy ridge top winds will result also, from the increased
winds aloft with the winds spreading over the east slopes of the
mountains into the foothills and through the wind corridor from
Sweetwater through Natrona counties. Some light rain and snow
showers will move in across the northern mountains this afternoon
and tonight. Thursday should be dry with a break in the moisture
with windy areas. A stronger Pacific trough will bring increased
rain and snow showers to the northern mountains on Friday with
windy areas. With enhanced winds today through Friday, better
smoke dispersal will result with most areas reaching good or
better afternoon smoke dispersal. Some narrow steep valleys may
remain trapped with poor smoke dispersal.

&&

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

$$

SHORT TERM...Hulme
LONG TERM...Murrell
AVIATION...LaVoie
FIRE WEATHER...Lipson



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