Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 121107
AFDGJT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
407 AM MST FRI FEB 12 2016

.SHORT TERM...(TODAY THROUGH SATURDAY)
ISSUED AT 407 AM MST FRI FEB 12 2016

AREAS NORTH OF I-70 WILL WAKE UP TO BKN TO OVC CLOUD COVER THIS
MORNING...BUT THIS UPPER LEVEL MOISTURE WILL DISINTEGRATE AS THE
RIDGE AXIS MOVES OVERHEAD DURING THE DAY. A TROUGH MOVING ONSHORE
THE PACIFIC NORTHWEST TODAY WILL BEGIN TO FLATTEN THE RIDGE AXIS
AND POOL SOME COOLER AIR IN ALOFT OVER NE UTAH AND NW COLORADO.
THIS TEMPERATURE DIFFERENTIAL AND AN INCOMING 100KT UPPER LEVEL
JET WILL INCREASE WINDS ALOFT WHICH WILL EVENTUALLY SURFACE ON
SATURDAY AFTERNOON. WINDS MAY GUST TO 40 MPH IN THE MOUNTAINS
NORTH OF I-70 AND AROUND 25 TO 30 MPH ACROSS THE NORTHERN VALLEYS
ON SATURDAY AFTERNOON. SOME MIDLEVEL CLOUD COVER IS EXPECTED TO
PASS THROUGH ON SATURDAY BUT AT THIS TIME...NOT ANTICIPATING MORE
THAN A FEW FLURRIES POSSIBLE ON SATURDAY.

.LONG TERM...(SATURDAY NIGHT THROUGH THURSDAY)
ISSUED AT 407 AM MST FRI FEB 12 2016

WEAK WAVE PASSES THROUGH THE FORECAST AREA SATURDAY NIGHT IN
STRENGTHENING NWLY FLOW. THIS WILL BRING IN INCREASE IN MID LEVEL
MOISTURE TO THE NORTHERN AND CENTRAL ZONES AND POSSIBLE A FEW
SHOWERS TO THE NORTHERN MOUNTAINS. H7 TEMPS WILL BE COOLING AND
ADDITIONAL ENERGY ARRIVES DURING THE DAY ON SUNDAY. THIS SECOND
WAVE BRING BETTER MOISTURE INTO THE REGION...WITH SHOWERS
INCREASING IN COVERAGE ACROSS THE PARK AND GORE RANGES IN NORTH
CENTRAL COLORADO. SNOW LEVELS WILL BE DROPPING BACK TO VALLEY
FLOORS IN THE NORTH AS COLDER AIR ARRIVES...BRINGING AN END TO
THIS EARLY SPRING-LIKE WARMTH. SNOW SHOWERS LINGER OVER THE
NORTHERN MOUNTAINS THROUGH MONDAY WITH ACTIVITY DRAGGING SOUTH
INTO THE CENTRAL MOUNTAINS BY MONDAY MORNING. STILL EARLY TO TALK
ABOUT AMOUNTS...BUT CURRENT MODEL TRENDS SUGGEST A LOW END
ADVISORY TYPE SYSTEM AT BEST FOR THE NORTHERN MOUNTAINS...WITH
SUB-ADVISORY CONDS INTO THE CENTRAL MOUNTAINS. THIS SYSTEM EXITS
BY MONDAY NIGHT WITH HEIGHTS CLIMBING ONCE AGAIN AS HIGH PRESSURE
STRENGTHENS OVER THE GREAT BASIN. THIS WILL BRING A RETURN TO MILD
TEMPERATURES...ESPECIALLY ABOVE THE STRONGER VALLEY INVERSIONS
WITH DRY WEATHER EXPECTED.

&&

.AVIATION...(FOR THE 12Z TAFS THROUGH 12Z SATURDAY MORNING)
ISSUED AT 407 AM MST FRI FEB 12 2016

PATCHY VALLEY FOG WILL PERSIST ACROSS THE EASTERN UINTA BASIN
THROUGH 16Z THIS MORNING...WITH IMPROVING CONDS EXPECTED INTO THE
AFTERNOON HOURS. OTHERWISE...VFR PATTERN REMAINS ENTRENCHED OVER
THE REGION WITH ONLY AN INCREASE IN HIGH CLOUDS EXPECTED THROUGH
EARLY SATURDAY MORNING.

&&

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

$$

SHORT TERM...JAM
LONG TERM...JDC
AVIATION...JDC


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