000 
FXUS65 KVEF 112211
AFDLAS

MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
312 PM PDT THU APR 11 2002

SYNOPSIS...WEAK IMPULSES IN A WESTERLY FLOW ALOFT WILL BRING 
OCCASIONAL CLOUDS ACROSS THE MOJAVE DESERT AND SOUTHERN GREAT BASIN 
TONIGHT THROUGH SATURDAY. TEMPERATURES WILL REMAIN WELL ABOVE NORMAL 
THROUGH THE WEEKEND.

DISCUSSION...ANOTHER WEAK SHORTWAVE EXTENDING FROM THE PACIFIC 
NORTHWEST DOWN TO THE CENTRAL CALIFORNIA COAST CAN BE SEEN FAIRLY 
WELL ON WATER VAPOR IMAGERY. IT DOES NOT SHOW UP WELL AT THE 500 MB 
LEVEL ON ANY OF THE MODELS. CLOUD ENHANCEMENT CAN BE SEEN EAST OF 
THE SOUTHERN SIERRA IN RESPONSE TO THIS FEATURE AND THIS MOISTURE 
WILL SPREAD ACROSS THE FORECAST AREA OVERNIGHT. THIS SHOULD KEEP 
MINIMUM TEMPERATURES HIGHER THAN LAST NIGHT IN MANY SPOTS. THE 
TRAILING EDGE OF THE MOISTURE SHOULD BE PULLING EAST OF THE AREA 
FRIDAY MORNING FOR ANOTHER ROUND OF SUNSHINE. ANOTHER WEAK IMPULSE 
IN THE FLOW CROSSES THE REGION FRIDAY NIGHT FOLLOWED BY A POSITIVE 
TILT RIDGE SATURDAY. A SHORTWAVE BRUSHES NORTHERN NEVADA SATURDAY 
NIGHT AND DRAGS MID LEVEL MOISTURE ACROSS NYE AND LINCOLN COUNTIES 
EARLY SUNDAY. ANY CHANCE OF PRECIPITATION WOULD PROBABLY BE CONFINED 
TO NORTHERN LINCOLN COUNTY SUNDAY AFTERNOON BUT WILL LEAVE MENTION 
OUT FOR NOW SINCE THE AVN HAS HAD A TRACK RECORD OF BEING A LITTLE 
TO FAR SOUTH WITH THE SYSTEMS OF THE PAST WEEK.

THE MOST SIGNIFICANT CHANGE IN THE WEATHER PATTERN BECOMES EVIDENT 
SUNDAY AS A DEEPER TROUGH SETS UP TO DROP ACROSS THE REGION MONDAY 
AND TUESDAY. WINDY AND COOLER CONDITIONS CAN BE EXPECTED EVERYWHERE 
MONDAY AND TUESDAY. IT APPEARS THE FRONT WILL SWEEP THROUGH SOUTHERN 
NEVADA MONDAY NIGHT ACCORDING TO THE AVN. THE TROUGH MAY LINGER 
SOMEWHAT WEDNESDAY AS ADDITIONAL ENERGY DROPS INTO IT. THE MRF AND 
ENSEMBLES INDICATE A RIDGE BUILDING IN BEHIND SO THURSDAY SHOULD BE 
THE BEGINNING OF ANOTHER WARMUP.

ADAIR

.LAS...NONE.