Area Forecast Discussion
Issued by NWS Grand Junction, CO

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000
FXUS65 KGJT 290441
AFDGJT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1041 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 06Z TAFS THROUGH 06Z SATURDAY NIGHT)
ISSUED AT 1041 PM MDT FRI AUG 28 2015

VFR CONDITIONS WILL CONTINUE THROUGH THE NIGHT UNTIL MIDDAY
SATURDAY. MOISTURE DELIVERED TO THE EASTERN EDGE OF THE SAN JUAN
MOUNTAINS BY A BACK DOOR COLD FRONT MAY FUEL SOME LIGHT SHOWERS
AND POSSIBLY AN EMBEDDED THUNDERSTORM DURING THE NIGHT AND INTO
SATURDAY MORNING. THUNDERSTORM ACTIVITY WILL INCREASE OVER THE
MOUNTAINS WITH DAYTIME WARMING WITH THE SAN JUAN MOUNTAINS FAVORED
FOR REASONS DESCRIBED PREVIOUSLY. STORMS WILL BE MORE ISOLATED
OVER THE CENTRAL AND NORTHERN MOUNTAINS. AIRPORTS ARE UNLIKELY TO
SEE RAINFALL FROM TODAY/S ACTIVITY AS STORMS WILL LARGELY BE
ANCHORED TO THE HIGHER TERRAIN SO EXPECT VFR CONDITIONS WILL
CONTINUE. HOWEVER...OUTFLOW WINDS FROM STORMS IN THE VICINITY
COULD GENERATE UNPREDICTABLE WIND GUSTS OF 30 TO 35 MPH. EXPECT
STORMS TO GO TO BED BY...OR SHORTLY AFTER SUNSET.

&&

.GJT WATCHES/WARNINGS/ADVISORIES...

CO...NONE.
UT...NONE.

&&

$$

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


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