Area Forecast Discussion
Issued by NWS Las Vegas, NV

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000
FXUS65 KVEF 272143
AFDVEF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
243 PM PDT WED MAY 27 2015

.SYNOPSIS...ASIDE FROM ISOLATED AFTERNOON AND EVENING THUNDERSTORMS
OVER THE SOUTHERN GREAT BASIN TOMORROW AND FRIDAY...DRY WEATHER IS
EXPECTED THROUGH EARLY NEXT WEEK. THE HOTTEST TEMPERATURES SO FAR
THIS SEASON ARE EXPECTED OVER THE WEEKEND.
&&

.SHORT TERM...THROUGH FRIDAY NIGHT. SATELLITE AND AREA RADARS
SHOWING CUMULUS DEVELOPING OVER THE HIGHER TERRAIN OF THE NORTHERN
HALF OF THE CWA...AND THUNDERSTORMS JUST SKIRTING THE NORTHERN AND
EASTERN CWA BORDER. BASED ON TRENDS...TRIMMED BACK THE EVENING POP
GRIDS A BIT FROM THE PREVIOUS ISSUANCE. TROUGH OVER THE GREAT BASIN
GRADUALLY SLIDES EAST TO THE ROCKIES THURSDAY AND THE PLAINS
FRIDAY...LEAVING ONLY DAYTIME HEATING AND RESIDUAL MOISTURE TO FUEL
THUNDERSTORM DEVELOPMENT OVER THE HIGHER TERRAIN OF THE SOUTHERN
GREAT BASIN. PAINTED A GRADUAL DOWNWARD TREND IN CONVECTION EACH DAY
TOMORROW AND FRIDAY. AS THE TROUGH MOVES AWAY RIDGING BUILDS IN ITS
WAKE...WITH TEMPERATURES RISING A FEW DEGREES EACH DAY.

.LONG TERM...SATURDAY THROUGH WEDNESDAY.

HIGH PRESSURE OVER THE WESTERN CONUS WILL BE THE PRIMARY FACTOR IN
THE WEATHER EARLY IN THE EXTENDED PERIOD.  TEMPERATURES 5-10 DEGREES
ABOVE NORMAL CAN BE EXPECTED THROUGH THE WEEKEND ALONG WITH MOSTLY
CLOUDLESS SKIES.  MONDAY WILL BE A TRANSITION DAY AS A LARGE UPPER
LEVEL LOW PRESSURE SYSTEM MOVES ASHORE IN THE PACIFIC NORTHWEST.
SLIGHTLY COOLER TEMPERATURES CAN BE EXPECTED. BY TUESDAY THE TROUGH
WILL BRING SOME HIGH CLOUDS TO THE SOUTHERN GREAT BASIN BUT SHOWER
ACTIVITY SHOULD REMAIN WELL NORTH OF THE CWA.  TEMPERATURES WILL
COOL TO NEAR NORMAL FOR THIS TIME OF YEAR FOR TUESDAY AND WEDNESDAY.
&&

.AVIATION...FOR MCCARRAN...ASIDE FROM EASTERLY WIND COMPONENTS EACH
AFTERNOON...NO OPERATIONALLY SIGNIFICANT WEATHER IS EXPECTED THROUGH
THE WEEKEND.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...ASIDE FROM ISOLATED AFTERNOON AND EVENING THUNDERSTORMS
IN THE SOUTHERN GREAT BASIN EACH DAY THROUGH FRIDAY...NO
OPERATIONALLY SIGNIFICANT WEATHER IS EXPECTED THROUGH THE WEEKEND.
&&

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

$$

MORGAN/BERC

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