Area Forecast Discussion
Issued by NWS Riverton, WY

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451
FXUS65 KRIW 242108
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
308 PM MDT SUN JUL 24 2016

.SHORT TERM...Tonight THROUGH Monday

STRONGER WINDS ALOFT WILL MOVE OVER CENTRAL WYOMING MONDAY. A
WEAK COLD FRONT THAT HAS BROUGHT EAST WINDS AND LOW LEVEL
MOISTURE TO THE AREA WILL ERODE RAPIDLY WITH THE STRONGER WINDS
AND VERY DRY AIR MIXING DOWN TO THE SURFACE FROM NOON TO 3 PM
MDT. THE AIR MASS WILL BECOME VERY UNSTABLE ALLOWING SMOKE COLUMNS
TO RISE SEVERAL THOUSAND FEET ABOVE THE GROUND. THE STRONG WIND
AND LOW RELATIVE HUMIDITY WILL CONTINUE UNTIL ABOUT 9 PM MDT.
in the west STRONGER WIND AND VERY DRY AIR WILL MOVE OVER WESTERN
WYOMING ON MONDAY. IN THE FAR NORTH ISOLATED SHOWERS AND
THUNDERSTORMS ARE EXPECTED IN THE AFTERNOON AND EVENING ON MONDAY.


.LONG TERM...Monday night THROUGH Sunday

A series of cold fronts will move south from montana across
northern and central wyoming with increasing shower and
thunderstorm activity especially over the mountains across the
north spreading south through the week. Saturday and Sunday
some monsoon moisture may move into the southwest and west from
utah and southern idaho.

&&

.AVIATION.../00Z ISSUANCE/

VFR conditions will prevail through 00Z Tuesday. Other than a very
isolated shower or thunderstorm across the northern mountains, no
precipitation is expected. Winds should remain light to moderate.
Patchy smoke will be possible in vicinity of KJAC...KPNA and the
Wind River Basin TAF sites late at night and in the morning before
morning inversions break.

&&

.FIRE WEATHER...

...FIRE WEATHER WATCH FOR STRONG WIND GUSTS...LOW HUMIDITY AND A
VERY UNSTABLE AIR MASS ACROSS CENTRAL WYOMING MONDAY AFTERNOON AND
EVENING for zones 280 283 285 287 and 288...

.STRONGER WINDS ALOFT WILL MOVE OVER CENTRAL WYOMING MONDAY. A
WEAK COLD FRONT THAT HAS BROUGHT EAST WINDS AND LOW LEVEL
MOISTURE TO THE AREA WILL ERODE RAPIDLY WITH THE STRONGER WINDS
AND VERY DRY AIR MIXING DOWN TO THE SURFACE FROM NOON TO 3 PM
MDT. THE AIR MASS WILL BECOME VERY UNSTABLE ALLOWING SMOKE COLUMNS
TO RISE SEVERAL THOUSAND FEET ABOVE THE GROUND. THE STRONG WIND
AND LOW RELATIVE HUMIDITY WILL CONTINUE UNTIL ABOUT 9 PM MDT.

in the west STRONGER WIND AND VERY DRY AIR WILL MOVE OVER WESTERN
WYOMING ON MONDAY. IN THE FAR NORTH ISOLATED SHOWERS AND
THUNDERSTORMS ARE EXPECTED IN THE AFTERNOON AND EVENING ON MONDAY.
SHOWER AND THUNDERSTORM ACTIVITY IS EXPECTED TO INCREASE AND
SPREAD SOUTH TO THE NORTHERN TETONS AND TOGWOTEE PASS THROUGH THE
WEEK. TO THE SOUTH DRY CONDITIONS ARE EXPECTED TO CONTINUE.

&&

.RIW Watches/Warnings/Advisories...
Fire Weather Watch from Monday afternoon through Monday evening
for WYZ280-283-285-287-288.

&&

$$

SHORT TERM...C.Baker
LONG TERM...C.Baker
AVIATION...Hattings
FIRE WEATHER...C.Baker



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