Area Forecast Discussion
Issued by NWS Denver/Boulder, CO

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FXUS65 KBOU 260940
AFDBOU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
340 AM MDT FRI SEP 26 2014

.SHORT TERM...(TODAY THROUGH TONIGHT )
ISSUED AT 319 AM MDT FRI SEP 26 2014

NO CLOUDS AGAIN OVER THE CWA EARLY THIS MORNING. DRAINAGE WINDS
ARE FAIRLY STRONG AS WELL. THE UPPER RIDGE AXIS IS EXPECTED TO
STAY PUT RIGHT OVER COLORADO WITH WEAK NORTHERLY FLOW ALOFT FOR
THE CWA TODAY AND TONIGHT. THE SYNOPTIC SCALE ENERGY IS PROGGED TO
REMAIN BENIGN INTO SATURDAY MORNING. THE BOUNDARY LAYER FLOW WILL
BE SOUTH-SOUTHEASTERLY TODAY...THEN NORMAL DRAINAGE TONIGHT.
MOISTURE-WISE...THERE LOOKS TO BE A TAD MORE FOR THIS
AFTERNOON/EVENING THEN YESTERDAY...BUT NOT MUCH MORE. PRECIPITABLE
WATER VALUES ARE PROGGED IN THE 0.40 TO 0.70 INCH RANGE THROUGH
TONIGHT...WITH BOUNDARY LAYER DEW POINTS MOSTLY IN THE 40S F FOR
THE ENTIRE CWA. THERE IS LIMITED CAPE PROGGED FOR THE WESTERN TWO-
THIRDS OF THE CWA THIS AFTERNOON/EARLY EVENING. THERE IS A TINY
BIT OF MEASURABLE RAINFALL NOTED OVER THE MOUNTAINS AND FOOTHILLS
LATE TODAY. WILL GO WITH 0-20%S POPS...THE "ISOLATED"S IN THE HIGH
MOUNTAINS MAINLY. FOR TEMPERATURES...TODAY`S HIGHS SHOULD BE RIGHT
AROUND YESTERDAY`S READINGS.

.LONG TERM...(SATURDAY THROUGH THURSDAY)
ISSUED AT 319 AM MDT FRI SEP 26 2014

FOR THIS WEEKEND...A LARGE UPPER LEVEL LOW WILL SLOWLY MOVE ACROSS
CALIFORNIA AND NEVADA. THIS WILL PRODUCE A WARM SOUTHERLY FLOW ALOFT
ACROSS COLORADO. HIGHS WILL AGAIN BE WARM ON SATURDAY WITH READINGS
IN THE 80S ACROSS NORTHEAST COLORADO. MOISTURE AND LIFT WILL STAY TO
THE WEST OF THE AREA...JUST A SLIGHT CHANCE OF ENOUGH MOISTURE AND
INSTABILITY FOR THUNDERSTORMS OVER THE CENTRAL MOUNTAINS SATURDAY
AFTERNOON AND EVENING. AS THIS SYSTEM SHIFTS EASTWARD...LIFT AND
MOISTURE WILL INCREASE OVER THE STATE SUNDAY. THERE WILL BE A SLIGHT
CHANCE FOR THUNDERSTORMS SUNDAY AFTERNOON AND EVENING OVER THE
PLAINS WITH A BETTER CHANCE FOR CONVECTION OVER THE MOUNTAINS.
TEMPERATURES WILL COOL SOME ON SUNDAY WITH INCREASED CLOUD
COVER...BUT READINGS ARE EXPECTED TO REMAIN ABOVE NORMAL.

FOR MONDAY...THE UPPER LEVEL LOW BECOMES MORE OF AN UPPER TROUGH.
BEST LIFT WILL BE OVER COLORADO MONDAY. EXPECT SCATTERED SHOWERS AND
THUNDERSTORMS TO MOVE ACROSS COLORADO MONDAY AFTERNOON AND EVENING.
ONCE THIS SYSTEM MOVES EAST OF THE STATE...SUBSIDENCE WILL PREVAIL
BEHIND IT AND PRODUCE GUSTY WEST WINDS OVER NORTHERN COLORADO MONDAY
NIGHT AND EARLY TUESDAY. OTHER THAN A CHANCE FOR OROGRAPHIC
PRECIPITATION...DRY CONDITIONS WILL PREVAIL TUESDAY. TEMPERATURES
WILL COOL TO UPPER 60S TO LOWER 70S MONDAY AND TUESDAY.

FOR WEDNESDAY AND THURSDAY...A BROAD UPPER LEVEL TROUGH WILL REMAIN
OVER THE ROCKIES IN THE 60S OVER NORTHEAST COLORADO. WILL HAVE LOW
POPS IN THE FORECAST DUE TO THE TROUGHINESS. MODELS DO SHOW SOME
PRECIPITATION WEDNESDAY AND INTO EARLY THURSDAY.

&&

.AVIATION...(FOR THE TAFS THROUGH 12Z SATURDAY MORNING)
ISSUED AT 319 AM MDT FRI SEP 26 2014

DRAINAGE WINDS WILL CONTINUE UNTIL ABOUT 15Z OR 16Z...THEN EAST-
SOUTHEASTERLIES BY 18Z-19Z. BACK TO DRAINAGE AFTER 03Z THIS
EVENING. NO CEILING ISSUES.

&&

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

$$

SHORT TERM...RJK
LONG TERM...MEIER
AVIATION...RJK


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