Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 282114
AFDGJT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
314 PM MDT FRI AUG 28 2015

.SHORT TERM...(TONIGHT THROUGH SATURDAY NIGHT)
ISSUED AT 314 PM MDT FRI AUG 28 2015

RATHER MUNDANE CONDITIONS OVER THE NEXT 24 HOURS AS DRIER AIR HAS
MOVED OVER THE AREA. HIGH PRESSURE WILL CONTINUE TO AMPLIFY AS
TEMPERATURES BOUNCE BACK TO NEAR OR SLIGHTLY ABOVE NORMAL.

THE FLOW BECOMES SOUTHWEST OVER EASTERN UT AND WESTERN CO SAT AND
SAT NIGHT AS A SHORTWAVE ROTATES AROUND THE LOW PRESSURE TROUGH
ALONG THE PACIFIC NORTHWEST COAST. MOISTURE WILL GENERALLY REMAIN
ON THE LOW SIDE...HOWEVER A FEW LATE DAY SHOWERS AND THUNDERSTORMS
WILL BE POSSIBLE OVER THE SOUTHERN MOUNTAINS. TEMPERATURES WILL
WARM SLIGHTLY.


.LONG TERM...(SUNDAY THROUGH FRIDAY)
ISSUED AT 314 PM MDT FRI AUG 28 2015

MOISTURE WILL INCREASE ON SUNDAY AS A COOL FRONT APPROACHES FROM
THE NORTHWEST. THIS FRONT...ALONG WITH SOME UPPER LEVEL JET
SUPPORT...IS ASSOCIATED WITH THE SHORTWAVE THAT WILL HAVE EJECTED
OFF THE MAIN LOW PRESSURE TROUGH OVER THE PACIFIC NORTHWEST LATE
SAT. DUE TO THIS WEAK FRONT...UPPER SUPPORT AND INCREASED
MOISTURE FROM THE SOUTHWEST...WE WILL SEE AN UPTICK IN SHOWERS AND
THUNDERSTORMS ON SUNDAY...ESPECIALLY DURING THE LATE AFTERNOON AND
EVENING. IT APPEARS THAT THIS ACTIVITY WILL PEAK DURING THE
EVENING AS THE WEAKENED FRONT MOVES INTO THE NORTHERN PORTION OF
THE FORECAST AREA. SOME MOISTURE WILL LINGER THROUGH MONDAY AND
EVEN INTO TUE. IN ADDITION SOME JET ENERGY...ALBEIT ON THE WEAK
SIDE...WILL REMAIN STRETCHED ACROSS THE FORECAST AREA THROUGH
TUESDAY FOR A CONTINUED CHANCE OF MAINLY AFTERNOON CONVECTION.

DRIER AIR WILL WORK IN BY MIDWEEK THROUGH THE END OF THE WORK
WEEK. HOWEVER A FEW LATE DAY SHOWERS AND THUNDERSTORMS WILL BE
POSSIBLE EACH DAY. TEMPERATURES WILL NEAR TO SLIGHTLY ABOVE
NORMAL.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z SATURDAY EVENING)
ISSUED AT 314 PM MDT FRI AUG 28 2015

VFR CONDITIONS ARE EXPECTED TO PREVAIL AT ALL TAF SITES OVER THE
NEXT 24 HOURS. A FEW SHOWERS/THUNDERSTORMS ARE POSSIBLE OVER THE
EXTREME HIGHER TERRAIN OF THE CONTINENTAL DIVIDE AND HIGHEST PEAKS
OF THE SAN JUANS THROUGH AROUND 02Z-03Z THIS EVENING AND THEN AGAIN
SATURDAY AFTERNOON. HOWEVER NO TAF SITES ARE EXPECTED TO BE
IMPACTED BY THESE STORMS. OUTFLOW WINDS OF 20 TO 30 KTS ARE
POSSIBLE BUT NOT LIKELY AT KASE...KEGE...AND KTEX FROM NEARBY
CONVECTION. TYPICAL DIURNALLY DOWNSLOPE/DOWNVALLEY INDUCED WINDS
WILL STEER THE FLOW OVERNIGHT THROUGH TOMORROW MORNING. LIGHT TO
MODERATE SOUTHWEST FLOW WILL DEVELOP BY SATURDAY AFTERNOON.


&&

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

$$

SHORT TERM...JAM/EH
LONG TERM...EH
AVIATION...JAM



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