015
FXUS65 KVEF 012107
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
107 PM PST THU JAN 1 2026
KEY MESSAGES
* EPISODES OF LIGHT RAIN AND HIGH ELEVATION SNOW TO CONTINUE
THROUGH THE WEEKEND.
* UNSETTLED WEATHER WILL PERSIST ACROSS THE WESTERN U.S. THROUGH
THE WEEK WITH PERIODS OF BREEZY CONDITIONS AND ADDITIONAL ROUNDS
OF LIGHT RAIN AND MOUNTAIN SNOW.
DISCUSSION
AN UNSETTLED PATTERN REMAINS ANCHORED ACROSS THE WESTERN U.S. AS
A LARGE UPPER TROUGH CONTINUES TO LINGER OFF THE PACIFIC COAST.
SMALLER SCALE IMPULSES WITHIN THE FLOW WILL CONTINUE TO PROMOTE
EPISODES OF RAIN AND MOUNTAIN SNOW THROUGH TONIGHT. A BIT OF A
RESPITE IS THEN EXPECTED BEFORE ANOTHER ROUND OF RAIN AND MOUNTAIN
SNOW LATE SATURDAY INTO SUNDAY. AT THIS TIME, PRECIPITATION
AMOUNTS APPEAR QUITE MODEST, WITH PROBABILITIES OF A TENTH OF AN
INCH OF RAIN HOVERING AROUND 10-20 PERCENT IN THE LOWER ELEVATIONS
AND THE HEAVIER TOTALS CONFINED TO ELEVATIONS ABOVE 5000 FT.
FOR THE COMING WORK WEEK, THE GENERAL PATTERN APPEARS QUITE
STEADY. THE UPPER TROUGH WILL GRADUALLY MIGRATE EASTWARD, WITH
ADDITIONAL ROUNDS OF LIGHT PRECIPITATION. TOWARD THE LATTER HALF
OF THE WEEK, ENSEMBLES POINT TO A MORE PRONOUNCED STORM SYSTEM
DIGGING FROM THE PACIFIC NORTHWEST SOUTHWARD, WHICH COULD INDUCE A
PERIOD OF BREEZY/WINDY AND COLDER CONDITIONS, HOWEVER CONFIDENCE
ON THE EXACT PLACEMENT AND INTENSITY OF THIS SYSTEM REMAINS QUITE
LOW. HEADING INTO NEXT WEEKEND, ENSEMBLE SOLUTIONS POINT THE
DEVELOPMENT OF A PRONOUNCED UPPER RIDGE ALONG THE WEST COAST WITH
PERSISTENT NORTH/NORTHWEST FLOW, WHICH MAY RESULT IN SUSTAINED
COOLER TEMPERATURES BEFORE A GRADUAL REBOUND.
AVIATION...FOR HARRY REID...FOR THE 18Z FORECAST PACKAGE
LOW CIGS
WILL PERSIST THROUGH THE AFTERNOON, WITH BASES FALLING TO LESS THAN
1KFT AGL AT TIMES AS ADDITIONAL SHOWER ACTIVITY MOVES THROUGH THE
VALLEY. NO SIGNIFICANT IMPROVEMENT IN CIGS IS EXPECTED THROUGH THE
EVENING, FOLLOWED BY ONLY MARGINAL IMPROVEMENT OVERNIGHT INTO FRIDAY
MORNING. CIGS SHOULD IMPROVE TO GREATER THAN 5KFT AGL BY FRIDAY
AFTERNOON. GIVEN THE ABUNDANT MOISTURE IN THE VALLEY, THE POTENTIAL
EXISTS FOR PATCHY FOG TO DEVELOP OVERNIGHT, WHICH COULD REDUCE
VISIBILITIES TO LESS THAN 3SM. WINDS WILL REMAIN LIGHT AND DIURNAL
INTO FRIDAY AFTERNOON.
FOR THE REST OF SOUTHERN NEVADA, NORTHWESTERN ARIZONA AND
SOUTHEASTERN CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...LOW CIGS
WILL CONTINUE ACROSS THE REGION INTO THE EVENING, WITH BASES FALLING
BELOW 1KFT AGL NEAR SHOWERS. SHOWER ACTIVITY WILL END WEST TO EAST
LATE THIS AFTERNOON THROUGH TONIGHT, BUT ONLY MINOR IMPROVEMENT IS
EXPECTED THROUGH FRIDAY MORNING. ADDITIONALLY, GIVEN THE INCREASED
MOISTURE ACROSS THE AREA, PATCHY FOG IS POSSIBLE OVERNIGHT, WHICH
COULD REDUCE VISIBILITIES TO LESS THAN 3SM. WINDS WILL GENERALLY
REMAIN LIGHT AND DIURNAL THROUGH FRIDAY MORNING.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...AUSTIN
AVIATION...PLANZ
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