Area Forecast Discussion
Issued by NWS Denver/Boulder, CO

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FXUS65 KBOU 140233
AFDBOU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
833 PM MDT SAT SEP 13 2014

.UPDATE...
ISSUED AT 833 PM MDT SAT SEP 13 2014

NO CHANGES. IT WILL BE A MOSTLY CLEAR AND COOL NIGHT.
HOWEVER...TEMPERATURES WILL REMAIN ABOVE FREEZING ALONG THE FRONT
RANGE.

&&

.SHORT TERM...(THIS EVENING THROUGH SUNDAY)
ISSUED AT 153 PM MDT SAT SEP 13 2014

LOOKING AT DRY AND STABLE CONDITIONS THROUGH SUNDAY MORNING. THERE
IS A LITTLE BOUNDARY SAGGING INTO NORTHEAST COLORADO THIS
AFTERNOON...WHICH MAY BE A REFLECTION OF THE SURFACE LOW SAGGING
SOUTH INTO SOUTHERN COLORADO OVERNIGHT. WILL LOWER MINS A DEGREE
OR SO ON THE PLAINS...BUT TEMPERATURES TONIGHT SHOULD STAY ABOVE
FREEZING...ALTHOUGH THE MOUNTAINS AND HIGH VALLEYS WILL SEE SOME
FREEZING TEMPERATURES TONIGHT.

THERE WILL BE ENOUGH MOISTURE AND HEATING ON SUNDAY TO PRODUCE
SCATTERED THUNDERSTORMS...WHICH SHOULD STAY ONLY IN THE HIGH
COUNTRY WITH ONLY A FEW THUNDERSTORMS IN THE FOOTHILLS AND PALMER
DIVIDE. WITH A STRONGER FRONT EXPECTED SUNDAY NIGHT...SUNDAY
AFTERNOON WILL BE A PREFRONTAL SITUATION...AND GUIDANCE
TEMPERATURES WERE SEVERAL DEGREES HIGHER ON THE PLAINS THAN OUR
PREVIOUS FORECAST...SO HAVE RAISED MAX TEMPS INTO MID 80S IN THE
URBAN CORRIDOR WITH MOST OF THE PLAINS PUSHING 80 DEGREES SUNDAY
AFTERNOON...ANOTHER BEAUTIFUL SEPTEMBER DAY IN COLORADO.

.LONG TERM...(SUNDAY NIGHT THROUGH SATURDAY)
ISSUED AT 153 PM MDT SAT SEP 13 2014

ANY ISOLATED CONVECTIVE ACTIVITY REMAINING IN THE HIGH COUNTRY
SUNDAY EVENING SHOULD DISSIPATE BY SUNDOWN. ANOTHER SURGE OF COOL
HIGH PRESSURE AIR IS SCHEDULED TO PUSH SOUTH ACROSS THE LOWER
COLORADO ELEVATIONS AFTER AROUND 09Z MONDAY. MAIN IMPACT WITH THIS
SYSTEM WILL BE STRATUS AND PERHAPS SOME FOG AND DRIZZLE MONDAY
MORNING WITH CLOUDS DECREASING IN THE AFTERNOON. CONTACT OF THIS
MOISTURE WITH THE ELEVATED TERRAIN ALONG THE FRONT RANGE AND SOUTH
PARK WILL PROBABLY BE SUFFICIENT TO GENERATE A FEW SHOWERS AND/OR
THUNDERSTORMS MONDAY AFTERNOON AND EVENING. THE COLD AIR WILL
FLUSH OUT OF THE PLAINS TUESDAY FOR WARMING TEMPERATURES THERE.
STRONG UPPER LEVEL HIGH PRESSURE AND LITTLE QUASIGEOSTROPHIC
DYNAMICS WILL DOMINATE THE WEATHER MOST OF THE REST OF THE WEEK
FOR WARM AND DRY CONDITIONS. THE RIDGE IS FORECAST TO PUSH EAST OF
THE STATE BY FRIDAY WHICH SHOULD ALLOW AN INCREASE IN MOISTURE AND
INSTABILITY BY THEN. THIS WOULD TRANSLATE INTO A SLIGHTLY BETTER
THREAT OF THUNDERSTORMS AT THAT TIME...ESPECIALLY IN THE
MOUNTAINS.

&&

.AVIATION...(FOR THE TAFS THROUGH 06Z SUNDAY EVENING)
ISSUED AT 833 PM MDT SAT SEP 13 2014

MOSTLY CLEAR SKIES WILL PREVAIL TONIGHT AND SUNDAY. LIGHT EASTERLY
WINDS WILL TURN NORMAL SOUTHERLY DRAINAGE DIRECTION AT KDEN AND
KAPA AROUND 06Z.

&&

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

$$

UPDATE...MEIER
SHORT TERM...RTG
LONG TERM...ET
AVIATION...MEIER



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