Area Forecast Discussion
Issued by NWS Denver/Boulder, CO

Home | Current Version | Previous Version | Text Only | 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

000
FXUS65 KBOU 212023
AFDBOU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
223 PM MDT THU APR 21 2016

.SHORT TERM...(THIS EVENING THROUGH FRIDAY)
ISSUED AT 1243 PM MDT THU APR 21 2016

UPPER RIDGE WILL SHIFT EAST TONIGHT WITH THE FLOW ALOFT BECOMING
SOUTHWEST AND SOUTHERLY WINDS DEVELOPING ON THE PLAINS. AIRMASS
STILL DRY AND PRETTY STABLE. SOME HIGH CLOUDS MAY CREEP IN FROM
THE WEST, AND SOME SHALLOW CONVECTION IS EXPECTED AGAIN FRIDAY
AFTERNOON. WITH CAPES OF 300 J/KG OR LESS, WILL HOLD ON TO LOW
POPS OVER THE HIGHER MOUNTAINS LATE IN THE AFTERNOON WITH NO
CHANCE OF RAIN ON THE PLAINS. FORECAST TEMPS ARE NEAR GUIDANCE AND
LOOK GOOD.

.LONG TERM...(FRIDAY NIGHT THROUGH THURSDAY)
ISSUED AT 1243 PM MDT THU APR 21 2016

THE FLOW ALOFT WILL BECOME SOUTHWESTERLY FRIDAY NIGHT AS THE
UPPER RIDGE AXIS SHIFTS TO THE EAST. SATURDAY INTO SATURDAY
NIGHT...THE FLOW ALOFT WILL INCREASE DURING THE DAY WITH THE NEXT
STORM SYSTEM PROGGED TO MOVE ACROSS WYOMING SATURDAY AFTERNOON
AND SATURDAY NIGHT. WEAK QG ASCENT WILL OCCUR OVER THE REGION
DURING THE DAY WITH STRONG MID LEVEL QG DESCENT DEVELOPING
ACROSS THE REGION SATURDAY NIGHT. THE BEST PCPN COVERAGE WILL BE
IN THE MOUNTAINS...BUT STILL A SLIGHT CHC OF TSTMS OVER THE PLAINS
ESPECIALLY ALONG THE NORTHERN BORDER. STRONG GRADIENT WINDS WILL
OCCUR ACROSS THE CWA SATURDAY EVENING WITH THE PASSAGE OF A COLD
FRONT. AFTER 06Z SUNDAY...THE NAM12 SPATIAL CROSS-SECTIONS SHOW A
FAIRLY GOOD MOUNTAIN WAVE DEVELOPING. THIS WAVE REMAINS IN PLACE
UNTIL AROUND 18Z SUNDAY...THEN WEAKENS. WILL KEEP SOME GUSTS IN
50-60 MPH RANGE FOR SATURDAY NIGHT IN AND THE MOUNTAINS/FOOTHILLS.
ON SUNDAY...COOLER WITH A SHORT WAVE RIDGE OF HIGH PRESSURE
MOVING OVER THE REGION. SOME SOME MOISTURE IN THE MOUNTAINS SO
WILL KEEP A CHANCE OF SHOWERS THERE. MONDAY INTO TUESDAY...ANOTHER
SYSTEM IS PROGGED TO MAKE ITS WAY ACROSS COLORADO. THE COOLING
TREND CONTINUES WITH ANOTHER ROUND OF SHOWERS AT THAT TIME. BY THE
MIDDLE OF THE WEEK...DRIER WITH THE TROUGH KICKING OFF TO THE EAST
AND ANOTHER RIDGE OF HIGH PRESSURE OVER THE REGION.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z FRIDAY AFTERNOON)
ISSUED AT 1243 PM MDT THU APR 21 2016

VFR THROUGH TONIGHT. SOME QUESTION ABOUT WIND DIRECTION EARLY
FRIDAY MORNING AS A WEAK DENVER CYCLONE MAY DEVELOP. HIGH
RESOLUTION MODELS CONTINUE TO HOLD WINDS SOUTHERLY AT KDEN/KAPA.
WINDS AT THOSE LOCATIONS COULD BECOME LIGHT NORTHWEST FOR A FEW
HOURS IN THE MORNING.

&&

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

$$

SHORT TERM...GIMMESTAD
LONG TERM...COOPER
AVIATION...GIMMESTAD



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