Area Forecast Discussion
Issued by NWS Denver/Boulder, CO

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000
FXUS65 KBOU 282120
AFDBOU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
320 PM MDT TUE APR 28 2015

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 320 PM MDT TUE APR 28 2015

VISIBLE SATELLITE SHOWS CLOUDS TRAPPED UNDER THE INVERSION ARE
SLOWLY ERODING ALONG THE NORTHERN FRONT RANGE THIS
AFTERNOON...AND WILL DO THE SAME OVER THE PLAINS THROUGH LATE
AFTERNOON AND EVENING AS FLOW TURNS WESTERLY. THE CLEARING SKIES
BUT LEFT OVER BOUNDARY LAYER MOISTURE COULD RESULT IN PATCHY FOG
DEVELOPMENT LATE TONIGHT IN LOW LYING AREAS OF THE PLAINS...AND
PARK COUNTY AS WELL WHERE THERE IS STILL SOME SNOW COVER.
OTHERWISE LOOK FOR CLEAR SKIES OVERNIGHT.

ON WEDNESDAY...SHARP UPPER LEVEL RIDGE AXIS WILL SHIFT EAST ACROSS
COLORADO. THIS WILL BRING WARMER TEMPERATURES AND SUNNY SKIES TO
THE FORECAST AREA. ONLY A FEW MID LEVEL CUMULUS CLOUDS EXPECTED
FOR THE AFTERNOON HOURS.

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 320 PM MDT TUE APR 28 2015

AFTER A DRY AND WARM DAY ON THURSDAY...THE REST OF THE FORECAST
PERIOD LOOKS LIKE IT IS GOING TO BE A REPETITIOUS PATTERN WITH
AFTERNOON AND EVENING THUNDERSTORMS EACH DAY. THURSDAY WILL
FEATURE THE UPPER RIDGE AXIS CENTERED OVER COLORADO AS A COLD
FRONT AND UPPER LEVEL DISTURBANCE APPROACH THE STATE FROM THE
NORTH AND NORTHWEST. THE SURFACE COLD FRONT IS NOT EXPECTED UNTIL
SOMETIME THURSDAY EVENING...SO THE AFTERNOON SHOULD BE A WARM ONE
WITH HIGHS IN THE MID TO UPPER 70S. MOUNTAIN AREAS MAY SEE A
LITTLE BIT OF SHOWER ACTIVITY LATE IN THE AFTERNOON. THROUGH THE
EVENING...AS THE SURFACE FRONT MOVES THROUGH...IT WILL BE POSSIBLE
THAT A ROUND OF SHOWERS AND THUNDERSTORMS WILL DEVELOP AND MOVE
ACROSS THE PLAINS.

FROM FRIDAY THROUGH THE MIDDLE OF NEXT WEEK IT APPEARS THAT GULF
MOISTURE IS GOING TO BE ABLE TO MOVE NORTHWARD OVER THE HIGH
PLAINS UNDERNEATH INITIALLY WEAK UPPER RIDGING OVER THE SOUTHERN
ROCKIES AND THEN BY NEXT MONDAY THE UPPER PATTERN SHIFTS TO WEAK
UPPER TROUGHING WHICH WILL INCREASE SOUTHWESTERLY WINDS AT MID AND
UPPER LEVELS. AS LOW LEVEL GULF MOISTURE ADVECTS INTO EASTERN
COLORADO...IT WILL HELP DE-STABILIZE THE AIRMASS EACH AFTERNOON
AND FUEL ISOLATED-SCATTERED THUNDERSTORMS. WINDS ALOFT WILL REMAIN
LIGHT TO MODERATE...SO NO STRONG OR ORGANIZED CONVECTIVE SYSTEMS
ARE EXPECTED...BUT EACH AFTERNOON AND EVENING WILL NEED TO MENTION
THE CHANCE OF SHOWERS TO INTERFERE WITH ANY PLANNED OUTDOOR
ACTIVITIES. TEMPERATURES WILL BE AROUND TO SLIGHTLY WARMER THAN
NORMAL.

&&

.AVIATION...(FOR THE TAFS THROUGH 00Z WEDNESDAY LATE AFTERNOON)
ISSUED AT 320 PM MDT TUE APR 28 2015

VFR CONDITIONS WILL PERSIST THROUGH WEDNESDAY. LIGHT
EAST/SOUTHEAST FLOW WILL GRADUALLY TURN MORE SOUTH/SOUTHWEST
THROUGH 06Z THIS EVENING. THEN WINDS WILL LIKELY BECOME LIGHT AND
VARIABLE BY 16Z-18Z WEDNESDAY...TRANSITIONING TO LIGHT EASTERLY
FOR WEDNESDAY AFTERNOON.

&&

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

$$

SHORT TERM...BARJENBRUCH
LONG TERM...DANKERS
AVIATION...BARJENBRUCH


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