Area Forecast Discussion
Issued by NWS Denver/Boulder, CO

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FXUS65 KBOU 280413
AFDBOU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
913 PM MST TUE JAN 27 2015

.UPDATE...
ISSUED AT 903 PM MST TUE JAN 27 2015

OVERALL FORECAST LOOKS FINE. I MADE SOME MINOR ADJUSTMENTS IN
TEMPERATURES ALONG THE FOOTHILLS...A SLIGHT INCREASE OF A DEGREE
OR TWO. OTHERWISE CURRENT GRIDS APPEAR TO BE ON TRACK.

&&

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 322 PM MST TUE JAN 27 2015

THE UPPER RIDGE AXIS HAS SHIFTED EAST OF COLORADO...ALLOWING FOR A
BIT SOUTHWESTERLY FLOW ALOFT. HIGH LEVEL CLOUDINESS HAS BEEN
MOVING OVER THE STATE...BUT DEEPER MOISTURE OVER ARIZONA SEEMS TO
BE LACKING ON SATELLITE IMAGERY. ADDITIONAL MOISTURE WILL MOVE UP
OUT OF BAJA CALIFORNIA THROUGH THE NEXT 24 HOURS. MOUNTAIN AREAS
COULD STILL SEE SOME LIGHT SNOW LATE TONIGHT AND THEN THROUGH
TOMORROW. AT THE SURFACE...COOLER AIR WILL BEGIN MOVING INTO
NORTHERN COLORADO AS THE LEE TROUGH IN PLACE THIS AFTERNOON MOVES
EASTWARD. TEMPERATURES WILL BE MUCH CLOSER TO SEASONAL NORMALS
TOMORROW AFTERNOON. PREVIOUS FORECASTS HAD EVERYTHING PRETTY WELL
HANDLED...SO NOT MANY CHANGES WERE NECESSARY THIS TIME AROUND.

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 322 PM MST TUE JAN 27 2015

TOMORROW`S SHORT WAVE TROUGH SHOULD PRETTY MUCH BE EAST OF THE
STATE BY 00Z THURSDAY WITH DECENT Q-G SUBSIDENCE COVERING THE
CWA. WINDS WILL BE ON THE DECREASE THROUGH THE EVENING HOURS IN
ALL AREAS. SOME MOISTURE LINGERING IN THE MOUNTAINS WILL LIKELY BE
SUFFICIENT TO KEEP OROGRAPHIC SNOW SHOWERS GOING THERE OVERNIGHT.

GENERALLY DRY CONDITIONS WILL PREVAIL THROUGHOUT THE AREA
THURSDAY AND THURSDAY NIGHT AS AN UPPER LEVEL RIDGE MOVES THROUGH
THE CENTRAL ROCKIES. DRY CONDITIONS WILL CONTINUE ON THE PLAINS
FRIDAY WITH AN INCREASING THREAT OF PRECIPITATION IN THE HIGH
COUNTRY DURING THE DAY FRIDAY INTO THE WEEKEND. THIS THREAT IS DUE
TO THE INCREASING AND STEADY...BUT RELATIVELY WEAK...QG ASCENT
OVERSPREADING THE AREA AHEAD OF THE NEXT TROUGH. TWO PIECES OF
TROUGH APPEAR TO CONSOLIDATE OVER THE CENTRAL ROCKIES BY
SATURDAY...THE MAIN ONE COMING IN FROM THE DESERT SOUTHWEST AND
A SECONDARY ONE DROPPING SOUTHEAST FROM THE PACIFIC NORTHWEST.
THE CHUNK COMING IN FROM THE NORTHWEST BRINGS LOW LEVEL HIGH
PRESSURE AND ANTICYCLONIC UPSLOPE TO THE PLAINS DURING THE DAY
SATURDAY WHICH WILL LEAD TO THE BEST CHANCE OF PRECIPITATION IN
THE LOWLANDS OCCURRING AT THAT TIME.

AFTER THIS TROUGH PASSES...MODERATE NORTHWEST FLOW ALOFT WILL
PREVAIL KEEPING BREEZY CONDITIONS IN THE MOUNTAINS ALONG WITH AT
LEAST SOME THREAT OF OROGRAPHIC SNOW SHOWERS THERE. THE PLAINS
SHOULD BE DRY WITH SEASONAL TEMPERATURES RETURNING EARLY NEXT
WEEK.

&&

.AVIATION...(FOR THE TAFS THROUGH 06Z WEDNESDAY EVENING)
ISSUED AT 903 PM MST TUE JAN 27 2015

VFR CONDITIONS OVER THE NEXT 24 HOURS. SOUTHWEST/SOUTHERLY WINDS
EXPECTED AT KDEN AND KAPA OVERNIGHT. STILL EXPECT GUSTY WESTERLY
WINDS TO DEVELOP AT KBJC LATER THIS EVENING INTO WEDNESDAY
MORNING. WINDS WILL BECOME NORTHWESTERLY AFTER 18Z WEDNESDAY
FOLLOWING THE PASSAGE OF A COOL FRONT. WINDS WILL TRANSITION TO
NORTHEASTERLY WEDNESDAY EVENING. DRAINAGE NOT EXPECTED TO KICK
INTO UNTIL WELL AFTER 07Z THURSDAY MORNING.

&&

.BOU WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

UPDATE...COOPER
SHORT TERM...DANKERS
LONG TERM...ET
AVIATION...COOPER


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