Area Forecast Discussion
Issued by NWS Grand Junction, CO

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FXUS65 KGJT 312300
AFDGJT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
500 PM MDT SUN AUG 31 2014

.SHORT TERM...(TONIGHT THROUGH MONDAY NIGHT)
ISSUED AT 224 PM MDT SUN AUG 31 2014

UPPER LEVEL TROUGH AXIS IS CROSSING THE DIVIDE EARLY THIS
AFTERNOON...PUTTING THE BULK OF THE SYNOPTIC SCALE LIFT NOW OUT
OVER THE FRONT RANGE. HOWEVER...A FEW LINES OF CONVERGENCE SET UP
BY FLOW INTERACTING WITH TERRAIN FEATURES...UINTAH MTNS...FLAT
TOPS AND GRAND MESA...AIDED BY WEAK MUCAPE OF 500-1000 J/KG WILL
MAINTAIN SHOWERS AND THUNDERSTORMS IN THESE AREAS...AND ISOLATED
CONVECTION ELSEWHERE OVER THE HIGH TERRAIN OF CENTRAL AND NRN
MTNS THROUGH LATE AFTERNOON. OTHERWISE...DRIER AIR AND SUBSIDENCE
MOVING ACROSS THE AREA WILL PUT A QUICK END TO PRECIP THIS
EVENING. DEWPOINTS DROPPING INTO THE UPPER 20S AND 30S WILL
PROVIDE ROOM FOR COOLER TEMPERATURES TONIGHT...NEAR TO SLIGHTLY
BELOW NORMAL. SHOULD HAVE WIDESPREAD 30S IN THE MOUNTAINS ABOVE
9000 FT TONIGHT AND MONDAY NIGHT. MONDAY WILL BE DRY EVERYWHERE
WITH HIGHS SLIGHTLY BELOW NORMAL.

.LONG TERM...(TUESDAY THROUGH SUNDAY)
ISSUED AT 224 PM MDT SUN AUG 31 2014

THE PERIOD BEGINS WITH WARM CONDITIONS UNDER MOSTLY CLEAR SKIES
AS HIGH PRESSURE EXPANDS TO OUR SOUTH...AND THE STRONGER
WESTERLIES STRETCH OVER THE NORTHERN TIER STATES. THE GRADIENT
WILL TIGHTEN A LITTLE ON WED AS THE FLOW BEGINS TO SHIFT FROM WEST
TO SOUTHWEST AS A LOW PRESSURE TROUGH DEVELOPS ALONG THE WEST
COAST. THEREFORE THE AREA CAN EXPECT SOME BREEZES DURING THE
AFTERNOON.

THE WESTERN TROUGH WILL PUSH THE SUBTROPICAL RIDGE EASTWARD...AND
WILL RESULT IN A SOUTHWEST TO SOUTH FLOW OVER THE REGION...THU
THROUGH THE WEEKEND. AS A RESULT MOISTURE WILL BEGIN TO WORK ITS
WAY INTO THE AREA...WITH AN INCREASED CHANCE OF SHOWERS AND
THUNDERSTORMS. THERE IS STILL SOME UNCERTAINTY AS TO JUST HOW DEEP
AND EXTENSIVE THIS MOISTURE SURGE WILL BE. BUT THERE IS THE
POTENTIAL FOR A WET FEW DAYS...FROM LATE IN THE WORK WEEK THROUGH
THE WEEKEND.

AFTER ABOVE NORMAL TEMPERATURES THROUGH MIDWEEK...TEMPERATURES WILL
DROP TO BELOW NORMAL VALUES BY THE WEEKEND DUE TO INCREASED CLOUDS
AND PRECIPITATION.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z MONDAY EVENING)
ISSUED AT 500 PM MDT SUN AUG 31 2014

A COOL FRONT HAS SETTLED NEAR THE 1-70 CORRIDOR LEAVING THE FOCUS
FOR SHOWERS AND THUNDERSTORMS ACROSS THE CENTRAL AND NORTHERN
MOUNTAINS THROUGH SUNSET. THE MAIN CONCERN WILL BE GUSTY WINDS
NEAR THE SHOWERS AND STORMS WHICH MAY GUST TO NEAR THE 50 MPH MARK
THROUGH 03Z. VFR CONDITIONS WILL PREVAIL WITH ANY CIGS AOA 9KFT
AGL. WESTERLY WIND GUSTS IN THE 35 TO 45 MPH RANGE HOWEVER MAY
LEAD TO SOME INTERRUPTION OF FLIGHT OPERATIONS AND LIMIT RUNWAY
LANDING AND TAKEOFF OPTIONS.

&&

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

$$

SHORT TERM...BEN
LONG TERM...EH
AVIATION...TGJT



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.