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000
FXUS65 KVEF 160320
AFDVEF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
820 PM PDT SAT MAR 15 2014

.SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA
THROUGH SUNDAY THEN A PACIFIC SYSTEM WILL RACE THROUGH THE NORTHERN
GREAT BASIN INTO THE ROCKIES BRINGING BREEZY TO WINDY CONDITIONS TO
MUCH OF THE REGION ON MONDAY. GUSTY NORTH WINDS AND COOLER
CONDITIONS ARE EXPECTED TUESDAY WITH TEMPERATURES 10 TO 15 DEGREES
COOLER THAN MONDAY. TEMPERATURES WILL RETURN TO ABOVE NORMAL
THURSDAY AND FRIDAY.
&&

.UPDATE...GENERALLY CLEAR SKIES ACROSS THE AREA THIS EVENING AS A
RIDGE STARTS TO BUILD IN. SATELLITE LOOP SHOWS A FEW HIGH CLOUDS
TRYING TO MOVE IN FROM THE NORTH/NORTHWEST BUT DISSIPATING AS THEY
DO. WINDS HAVE BEEN DECREASING AS EXPECTED AND THE RED FLAG WARNING
AND LAKE WIND ADVISORY WERE ALLOWED TO EXPIRE. NO UPDATES
ANTICIPATED THIS EVENING.
&&

.AVIATION...FOR MCCARRAN...LIGHT NORTHEAST WINDS MAY LINGER THROUGH
THE EVENING THEN DRAINAGE SOUTH/SOUTHWEST WINDS AFTER ABOUT 09Z.
WINDS WILL BE LIGHT AND VARIABLE MOST OF SUNDAY BUT WILL FAVOR A
SOUTHEAST DIRECTION IN THE AFTERNOON LESS THAN 8 KTS. GENERALLY
CLEAR SKIES THROUGH SUNDAY.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...MAINLY NORTH/NORTHEAST WINDS 5-15 KTS TONIGHT THEN
VARIABLE UNDER 10 KTS SUNDAY. SKIES WILL REMAIN MOSTLY CLEAR THROUGH
SUNDAY.
&&

.PREV DISCUSSION...
234 PM PDT SAT MAR 15 2014

.SHORT TERM...TONIGHT THROUGH TUESDAY NIGHT...NORTHERLY WINDS ARE
LINGERING TODAY ACROSS THE REGION BEHIND A COLD FRONT THAT PASSED
THROUGH THE AREA OVERNIGHT. THE STRONGEST WINDS ARE IN THE USUAL
PLACES INCLUDING THE COLORADO RIVER VALLEY WHERE SUSTAINED WINDS ARE
EXCEEDING LAKE WIND CRITERIA AND COMBINING WITH LOW RELATIVE
HUMIDITY TO CREATE RED FLAG CONDITIONS. AS THE SYSTEM THAT BROUGHT
THE WINDS MOVES FURTHER AWAY FROM THE AREA TONIGHT AND SUNDAY, HIGH
PRESSURE WILL DOMINATE AND LEAD TO LIGHTER WINDS AND WARMER
TEMPERATURES. A PACIFIC SHORTWAVE IS FORECAST TO SUPPRESS THE RIDGE
MONDAY AS IT MOVES INTO THE PACIFIC NORTHWEST COAST AND PASSES
THROUGH THE NORTHERN GREAT BASIN ON ITS WAY INTO THE ROCKIES. STRONG
WEST TO SOUTHWEST WINDS ARE EXPECTED TO DEVELOP MONDAY AFTERNOON
ACROSS THE SIERRA AND THE MOJAVE DESERT WHICH MAY REQUIRE A WIND
ADVISORY AT SOME POINT FOR PORTIONS OF THE AREA. ACROSS THE NORTHERN
FORECAST AREA MONDAY...A COLD FRONT WILL BEGIN TURNING WINDS TO THE
NORTH AS IT MOVES SOUTHWARD. THIS FRONT WILL BRING A COOLER AIRMASS
WITH IT AND TEMPERATURES TUESDAY ARE EXPECTED TO FALL BELOW
NORMAL...OR ABOUT 10-15 DEGREES COOLER THAN MONDAY.

.LONG TERM...WEDNESDAY THROUGH SATURDAY...GUSTY WINDS AND COOLER
TEMPERATURES WILL CONTINUE INTO WEDNESDAY IN THE WAKE OF A SHORTWAVE
FROM EARLIER IN THE WEEK. PER USUAL WITH THIS SORT OF SETUP...THE
STRONGEST WINDS ARE EXPECTED DOWN THE COLORADO RIVER VALLEY. WINDS
SHOULD REALLY BEGIN TO TAPER OFF BY LATE MORNING OR EARLY AFTERNOON
WEDNESDAY AS THE GRADIENT RELAXES.

THROUGH THE REMAINDER OF THE PERIOD NORTHWESTERLY FLOW WILL
TRANSITION TO ZONAL FLOW AND WITH AN OCCASIONAL RIPPLE MOVING ACROSS
THE AREA. TEMPERATURES WILL BEGIN TO WARM DURING THE LATTER PART OF
THE WEEK INTO THE WEEKEND. NO SIGNIFICANT SENSIBLE WEATHER IMPACTS
ARE EXPECTED AT THIS TIME. A RIDGE OF LOOKS TO AMPLIFY OVER THE
EASTERN PACIFIC OR WESTERN US BY NEXT SUNDAY/MONDAY.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...NONE.
AZ...NONE.
CA...NONE.
&&

$$

PREV DISCUSSION...SALMEN/WOLCOTT
UPDATE/AVIATION...HARRISON

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