Area Forecast Discussion
Issued by NWS Las Vegas, NV

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FXUS65 KVEF 022208
AFDVEF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
208 PM PST MON MAR 2 2015

.SYNOPSIS...COOL CONDITIONS AND A CHANCE OF SHOWERS WILL CONTINUE
ACROSS THE AREA THROUGH TUESDAY THEN DRY AND MILD WEATHER WILL
SETTLE OVER THE REGION LATE IN THE WEEK AND OVER THE WEEKEND. GUSTY
WINDS ARE EXPECTED ALONG THE COLORADO RIVER VALLEY ON WEDNESDAY.
&&

.SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT.

THE STEADY RAIN FROM LAST NIGHT AND EARLY THIS MORNING HAS MOSTLY
MOVED EAST AND CONVECTIVE SHOWER ACTIVITY INCLUDING ISOLATED
THUNDERSTORMS ARE NOW THE PRIMARY CONCERN FOR THE REST OF THE
AFTERNOON INTO EARLY EVENING. VISIBLE SATELLITE, RADAR AND LIGHTNING
DATA SHOWS MOST OF THE CURRENT TSTORM ACTION IN CENTRAL NYE AND
LINCOLN COUNTIES. THE STRONGER THUNDERSTORM CELLS THIS AFTERNOON
WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAIN AND SMALL HAIL. AS FOR
SNOW, CURRENT WINTER WEATHER ADVISORIES WILL REMAIN IN PLACE THROUGH
4 PM PST...5 PM MST WITH THE POSSIBILITY OF CONVECTIVE SNOW BURSTS
PRODUCING A FEW INCHES OF ACCUMULATION.

AS THE FIRST OF TWO LOW PRESSURE SYSTEMS WEAKEN AND LIFTS OFF TO THE
NORTHEAST TODAY, A SECOND SYSTEM OFF THE WEST COAST NEAR MONTEREY CA
WILL SINK DIRECTLY SOUTH TO ABOUT 175 MILES WEST OF SAN DIEGO BY
DAYBREAK TUESDAY. THE LOW ITSELF SWINGS INLAND OVER BAJA DURING THE
DAY TUESDAY AND WON`T HAVE ANY DIRECT IMPACT ON THE WEATHER IN OUR
AREA. HOWEVER, SHORTWAVE ENERGY MOVING THROUGH THE GREAT BASIN WILL
BRING A FEW SHOWERS TONIGHT INTO TUESDAY...MAINLY ACROSS LINCOLN AND
MOHAVE COUNTIES ALTHOUGH A FEW SHOWERS WILL BE POSSIBLE FURTHER WEST
IN PORTIONS OF NYE AND CLARK COUNTIES THROUGH TUESDAY AFTERNOON.
BOTH SYSTEMS MOVE EAST TUESDAY NIGHT WITH DRY CONDITIONS EXPECTED
WEDNESDAY.

A SECOND CONCERN SURFACES WEDNESDAY AS A COLD FRONT PASSES ACROSS
THE AREA. GUSTY NORTH WINDS WILL DEVELOP BEHIND THE FRONT AND COULD
BECOME STRONG ALONG PORTIONS OF THE COLORADO RIVER VALLEY. RIGHT
NOW, IT LOOKS LIKE WIND SPEEDS WILL BE JUST SHY OF LAKE WIND
ADVISORY LEVELS.

TEMPERATURES WILL REMAIN BELOW NORMAL THROUGH WEDNESDAY.

.LONG TERM...THURSDAY THROUGH SUNDAY.

THE START OF THE LONG TERM PERIOD WILL FEATURE A STRONG RIDGE ALOFT
BUILDING ACROSS THE EASTERN PACIFIC AND A WEAK SHORTWAVE TROUGH
MOVING EAST ACROSS THE INTERMOUNTAIN WEST. WHILE THE TROUGH PASSAGE
WILL NOT BRING ANY PRECIPITATION TO OUR AREA...IT WILL INCREASE
NORTHERLY WINDS...MAINLY ALONG THE COLORADO RIVER THURSDAY AND AGAIN
FRIDAY. THERE IS DISAGREEMENT JUST HOW FAR EAST THAT RIDGE OVER THE
EASTERN PACIFIC WILL PUSH. SOME GUIDANCE KEEPS THE RIDGE AXIS TO OUR
WEST...WHERE WE STAY IN MORE OF A NORTHWEST FLOW. EITHER WAY...WE
WILL BE IN A DRY AND WARM PATTERN RIGHT THROUGH THE WEEKEND. HIGH
TEMPERATURES SHOULD CLIMB BACK INTO THE 70S UNDER SUNNY SKIES FOR
MUCH OF THE MOJAVE DESERT REGION THIS WEEKEND. SO...THE WEATHER
LOOKS GREAT FOR ANY WEEKEND OUTDOOR PLANS BUT PREPARE FOR THE
STRENGTH OF THE MARCH SUN.
&&

.AVIATION...FOR MCCARRAN...CIGS CONTINUE TO LIFT AS DRIER AIR HAS
STARTED WORKING INTO THE AREA. BKN CLOUDS AROUND 7K FEET EXPECTED
THROUGH THE NIGHT THEN SCATTERING OUT BY DAYBREAK TUESDAY MORNING.
SHOWER ACTIVITY COULD MOVE INTO THE VALLEY THIS AFTERNOON WITH AN
ISOLATED THUNDERSTORM OR TWO DEVELOPING NEAR OR IN THE VALLEY.
ANOTHER SYSTEM WILL BRING MORE MOISTURE TO THE AREA TUESDAY
AFTERNOON/EVENING WITH ISOLATED SHOWERS POSSIBLE AND CIGS AROUND 7K
FEET EXPECTED. SOUTHWEST WINDS 15-20KTS WITH GUSTS AROUND 25KTS TO
CONTINUE THROUGH THE AFTERNOON THEN DECREASE TO UNDER 10KTS THIS
EVENING.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ACROSS THE
AREA THIS AFTERNOON...GENERALLY SHIFT TO THE EASTERN SECTIONS OF THE
AREA TONIGHT AND TUESDAY. BRIEF VSBY RESTRICTIONS ARE POSSIBLE WHERE
THUNDERSTORMS DEVELOP. GUSTY SOUTHWEST WINDS THROUGH THE AFTERNOON
OVER THE MOJAVE DESERT DECREASING OVERNIGHT. NORTH WINDS ACROSS THE
NORTHERN AREAS ON TUESDAY PUSHING SOUTH INTO WEDNESDAY.
&&

.SPOTTER INFORMATION STATEMENT...SPOTTERS ARE REQUESTED TO REPORT
ANY SIGNIFICANT WEATHER ACCORDING TO STANDARD OPERATING PROCEDURES.
&&

$$

SHORT TERM/AVIATION...SALMEN
LONG TERM...PADDOCK

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