Area Forecast Discussion
Issued by NWS Grand Junction, CO

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000
FXUS65 KGJT 010558
AFDGJT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1158 PM MDT SAT APR 30 2016

.SHORT TERM...(THIS EVENING THROUGH SUNDAY NIGHT)
ISSUED AT 255 PM MDT SAT APR 30 2016

A LARGE AMPLITUDE PATTERN ACROSS NORTH AMERICA WILL MEAN VERY
SLOW MOVING SYSTEMS FOR THE NEXT SEVERAL DAYS. AS ONE OLD LOW
GRADUALLY MOVES EAST OVER THE PLAINS INTO THE OHIO RIVER VALLEY
TONIGHT THROUGH SUNDAY NIGHT...ANOTHER PACIFIC LOW...NOW CENTERED
OVER WESTERN AZ...WITH FILL AND MOVE EAST AND OVER THE FOUR
CORNERS. THIS IS A WEAKER SOLUTION THAN SEEN IN THE PAST FEW DAYS
AND MEANS THE PRECIPITATION FROM THIS SYSTEM WILL BE CONFINED
FURTHER SOUTH. HAVE INCREASED THE CHANCE OF RAIN FOR AREAS SOUTH
OF ABOUT A LINE FROM MOAB TO ASPEN...AND DECREASED CHANCES TO THE
NORTH.

.LONG TERM...(MONDAY THROUGH SATURDAY)
ISSUED AT 255 PM MDT SAT APR 30 2016

PRECIPITATION FROM THE SOUTHERN SYSTEM WILL LINGER OVER THE SAN
JUANS AND FOUR CORNERS INTO TUESDAY...THOUGH IT WILL BE STEADILY
DECREASING AND SLIDING EAST. WED AND THU RESIDUAL MOISTURE WILL
ALLOW ISOLATED AFTERNOON THUNDERSTORMS FORM OVER THE MOUNTAINS THE
MIDWEEK SHOULD BE RELATIVELY DRY AND HIGH PRESSURE DROPS IN FROM
THE NORTH. THU AFTERNOON THE RIDGELINE WILL PASS EAST OF THE AREA
AND SOUTHWEST WINDS AHEAD OF THE NEXT PACIFIC SYSTEM WILL INCREASE
OVER THE AREA. FRIDAY COULD BE QUITE WINDY AS THIS STRONG CLOSED
LOW MOVES INTO THE GREAT BASIN AND ENCOMPASSES MOST OF THE WESTERN
U.S. ON SAT THE LOW CENTER WILL BE OVER EASTERN UT WITH RELATIVELY
WET CONDITIONS OVER THE AREA FOR ANOTHER WEEKEND.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z SUNDAY MIDNIGHT)
ISSUED AT 1150 PM MDT SAT APR 30 2016

SHOWER COVERAGE WILL INCREASE TODAY ACROSS SOUTHEAST UTAH AND
SOUTHWEST COLORADO. EXPECT SNOW LEVELS TO DROP TO AS LOW AS 6000
FT BY EARLY SUNDAY THEN RISE TO AROUND 9000 FT IN THE AFTERNOON. AFT
18Z CIGS WILL CROSS ILS BREAKPOINTS BE COMMON NEAR SHOWERS AND
SOUTH OF THE HIGHWAY 50 CORRIDOR THROUGH SUNDAY EVENING.


&&

.GJT WATCHES/WARNINGS/ADVISORIES...
CO...NONE.
UT...NONE.
&&

$$

SHORT TERM...CC
LONG TERM...CC
AVIATION...JDC



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