Area Forecast Discussion
Issued by NWS Riverton, WY

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972
FXUS65 KRIW 290512
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
1112 PM MDT SUN AUG 28 2016

.UPDATE...

Cancelled red flag warning as criteria not being met, and
conditions slowly improving. Also tweaked overnight temps a bit
lower over the far western valleys.

&&

.PREV DISCUSSION... /issued 230 PM MDT SUN AUG 28 2016/

Short Term...Tonight Through Monday

A red flag warning is in effect until 9 pm mdt this evening
for zones 140 and 286 where gusty winds and low relative
humidity will combine with critically dry fuels for critical
fire weather conditions. Across the far northern mountains a few
evening thunderstorms are possible. A dry cold front will push
south through much of the area east of the Continental Divide
tonight with northeast winds and cooler temperatures. high
pressure aloft will build north on Monday with lighter winds.
isolated thunderstorms may develop over the higher mountains
along the continental divide and the bighorn mountains.

Long Term...Monday Night Through Sunday

warm dry conditions are expected through the week with relatively
light winds. strongest winds will be over the northwest Wednesday
and Thursday. Isolated showers and thunderstorms can be expected
over the higher mountains. into the weekend a stronger cold front
will bring the threat of much cooler temperatures and brisk
northeast winds...especially on Sunday.

Aviation.../06Z Issuance/

Very isolated convection are possible along the Divide and in the
Bighorn Mountains Monday afternoon and evening, but would not be
surprised to see nothing develop except some cu with some light
virga. The main hazard from this activity if it develops would be
gusty winds. Otherwise...VFR conditions with some high-based
cumulus and cirrus. Winds will be light.

Fire Weather...

A red flag warning is in effect until 9 pm mdt this evening
for zones 140 and 286 where gusty winds and low relative
humidity will combine with critically dry fuels for critical
fire weather conditions. Across the far northern mountains a few
evening thunderstorms are possible. A dry cold front will push
south through much of the area east of the Continental Divide
tonight with northeast winds and cooler temperatures. high
pressure aloft will build north on Monday with lighter winds.
isolated thunderstorms may develop over the higher mountains
along the continental divide and the bighorn mountains.

&&

.RIW Watches/Warnings/Advisories...None.

&&

$$

UPDATE...WM
SHORT TERM...C.Baker
LONG TERM...C.Baker
AVIATION...WM
FIRE WEATHER...C.Baker



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