Area Forecast Discussion
Issued by NWS Pueblo, CO

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FXUS65 KPUB 242111
AFDPUB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PUEBLO CO
311 PM MDT TUE MAR 24 2015

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 305 PM MDT TUE MAR 24 2015

CURRENTLY...WINDY AND WARM CONDITIONS HAVE BEEN FOUND ACROSS MUCH OF
THE FORECAST AREA TODAY...AS TEMPS HAVE WARMED INTO THE 60S TO
AROUND 70 F FOR THE PLAINS...AND INTO THE 50S FOR THE HIGH VALLEYS.
SKIES WERE SUNNY FOR MUCH OF THE DAY...BUT AS OF 3 PM HIGH LVL
CLOUDS WERE ON THE INCREASE ACROSS THE CONTDVD AND E MTS.

TONIGHT...RED FLAG CONDITIONS ARE EXPECTED TO BEGIN DIMINISHING
BETWEEN 6 AND 7 PM AS TEMPS START TO COOL AND RH INCREASES...SO THE
RFW WILL MOST LIKELY EXPIRE AT THE PREDETERMINED TIME. MID AND HIGH
LEVEL CLOUDS WILL CONTINUE TO FILTER IN FROM THE W-NW AS A BROAD
UPPER TROUGH SWEEPS ACROSS THE STATE OVERNIGHT. ISOLATED SHOWER
ACTIVITY IS FORECAST TO DEVELOP OVER THE CENTRAL MTS RIGHT AROUND
MIDNIGHT...THEN INCREASE IN COVERAGE THROUGH THE EARLY MORNING HRS.

TOMORROW...A COLD FRONT WILL DROP SOUTH ACROSS THE PALMER DVD
BETWEEN 13-15Z. GUSTY N-NE WINDS AND SHOWER ACTIVITY IS FORECAST
ALONG THE E MTS AND I-25 CORRIDOR...DEVELOPING FROM NORTH TO
SOUTH...THROUGH THE LATE MORNING AND INTO THE AFTN. ADJUSTED THE POP
GRIDS TO SHOW SCATTERED OR EVEN LIKELY POPS FOR THE HIGHER TERRAIN
AND FAVORED SLOPES OF THE RAMPART RANGE...PALMER DVD AND E
MTS...WHILE THE REST OF THE AREA SHOULD SEE ONLY ISOLATED ACTIVITY.
THE HIGHEST ELEVATIONS OF THE WETS...SANGRES AND PIKES PEAK MAY SEE
1 TO 3 INCHES OF NEW SNOW THROUGH THE AFTN DUE TO THIS QUICK MOVING
WAVE. LOOK FOR MAX TEMPS ACROSS THE PLAINS TOMORROW TO BE ABOUT 10-
15 DEGREES COOLER THAN READINGS TODAY. MOORE

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 305 PM MDT TUE MAR 24 2015

WEDNESDAY NIGHT THROUGH THURSDAY...NORTHWEST FLOW WILL CONTINUE
ACROSS THE CWA DURING THIS PERIOD. RAIN AND SNOW SHOWERS OVER THE SOUTHERN
MOUNTAINS AND SOUTHERN I-25 CORRIDOR SHOULD DIMINISH OVERNIGHT AS
THE UPPER LEVEL DISTURBANCE MOVES QUICKLY AWAY FROM THE AREA. ON
THURSDAY...THE NEXT IN A SERIES OF WEAK UPPER LEVEL DISTURBANCES
IS FORECAST TO MOVE THROUGH THE HIGH PLAINS ON NORTHWEST FLOW
ALOFT. THE ENERGY AND MOISTURE REMAIN WELL TO THE NORTH AND EAST
OF THE CWA WITH A WEAK COLD FRONT GIVING A GLANCING BLOW TO THE
EASTERN PLAINS. MODELS SHOWING DRY CONDITIONS THURSDAY SO HAVE
KEPT ONLY A SLIGHT CHANCE OF SNOW SHOWERS OVER PIKES PEAK. LATEST
GUIDANCE HAS WARMER TEMPS ON THURSDAY AS WELL...SO HAVE BUMPED
HIGHS UP A FEW DEGREES.

RIDGE BEGINS TO BUILD OVER THE ROCKY MOUNTAIN REGION THURSDAY NIGHT
AND THEN REMAINS IN PLACE THROUGH SUNDAY. TEMPERATURES RETURN TO
ABOVE SEASONAL NORMALS...WITH SATURDAY THE WARMEST DAY IN THE
PERIOD. ON SUNDAY... A FEW WEAK DISTURBANCES MOVE OVER THE TOP OF
THE RIDGE AND THE RIDGE IS FLATTENED SOMEWHAT. MODELS SHOW A FRONTAL
BOUNDARY BACK DOORING THROUGH THE PLAINS WITH INCREASING LOW LEVEL
MOISTURE AND EASTERLY FLOW DEVELOPING AT LOW LEVELS ON THE PLAINS.
COULD SEE SCATTERED LATE DAY SHOWERS DEVELOP OVER THE HIGHER
ELEVATIONS AND PALMER DIVIDE.

BY SUNDAY NIGHT...SOME DIFFERENCES CROP UP IN THE MODELS EVOLUTION
OF THE UPPER LEVEL PATTERN. THE 12Z ECMWF SHOWS AN UPPER LEVEL TROF
MOVING ACROSS UT/CO SUNDAY NIGHT THROUGH MONDAY. 12Z GFS HAS A
CLOSED 500MB LOW WELL TO THE SOUTH AND WEST. THERE IS QUITE A BIT OF
UNCERTAINTY IN THE FORECAST BEYOND SUNDAY...SO MADE NO CHANGES TO
THE MONDAY/TUESDAY FORECAST WHICH CURRENTLY HAS TEMPERATURES
REMAINING MILD AND A CHANCE FOR SHOWERS MOUNTAINS AND WESTERN
AREAS. STARK

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z WEDNESDAY EVENING)
ISSUED AT 305 PM MDT TUE MAR 24 2015

VFR CONDITIONS EXPECTED ACROSS MUCH OF THE REGION...INCLUDING THE
THREE MAIN TAF SITES OF KCOS...KPUB AND KALS...OVER THE NEXT 24 HRS.
CLOUDS WILL BE ON THE INCREASE ACROSS THE CONTDVD THIS
EVENING...WITH ISOLATED TO LOW END SCATTERED SHOWER ACTIVITY
DEVELOPING AROUND 06Z PRODUCING IFR TO LIFR CONDITIONS OVER THE
CENTRAL MT PASSES. FOR THE LOWER ELEVATIONS...SFC COLD FRONT IS
FORECAST TO DROP SOUTH ACROSS THE PALMER DVD BETWEEN 13-15Z TOMORROW
MORNING...PRODUCING N-NE WINDS 15G30KT AT TIMES THROUGH THE LATE
MORNING AND AFTN...AS WELL AS ISOLATED TO SCATTERED SHOWER ACTIVITY
FOR KCOS AND KPUB AFTER 16-17Z. IFR CONDITIONS WILL DEVELOP OVER THE
RAMPART RANGE...WET MTS AND SANGRE DE CRISTO MTS AFTER 18Z AND LAST
THROUGH APPROX 06Z.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING UNTIL 8 PM MDT THIS EVENING FOR COZ224-226>237.

&&

$$

SHORT TERM...MOORE
LONG TERM...STARK
AVIATION...MOORE


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