527
FXUS65 KVEF 011216
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
416 AM PST THU JAN 1 2026
KEY MESSAGES
* PRECIPITATION CHANCES WILL INCREASE REGION-WIDE TONIGHT AND
THURSDAY, WITH WIDESPREAD LIGHT RAIN AND HIGH ELEVATION SNOW
EXPECTED.
* THE UNSETTLED PATTERN WILL PERSIST THROUGH THE FIRST WEEK OF
JANUARY, WITH PERIODS OF PRECIPITATION AND BREEZY CONDITIONS
THROUGH AT LEAST MIDWEEK NEXT WEEK.
DISCUSSION
TODAY THROUGH WEDNESDAY.
THE MAIN BAND OF PRECIPITATION CONTINUES TO MOVE NORTHEASTWARD OUT
OF THE AREA EARLY THIS MORNING, LEAVING LOW CLOUDS, PATCHY FOG, AND
ADDITIONAL ISOLATED SHOWERS IN ITS WAKE. ANY FOG SHOULD BURN OFF
AFTER SUNRISE. THE SHORTWAVE RESPONSIBLE FOR THIS ACTIVITY WILL
EJECT NORTHEAST THROUGH CALIFORNIA AND INTO THE GREAT BASIN TODAY.
INSTABILITY AND LIFT ASSOCIATED WITH THIS FEATURE AND COLDER
TEMPERATURES ALOFT KICK OFF ANOTHER ROUND OF SHOWERS AS THE
SHORTWAVE PASSES THROUGH THE REGION, BUT RAINFALL TOTALS WILL BE
LIGHTER COMPARED TO YESTERDAY'S ACTIVITY. SNOW LEVELS FALL TO 6500-
8000 FEET THANKS TO COOLER AIR ALOFT, MEANING A FEW INCHES OF SNOW
ARE POSSIBLE OVER THE HIGHER MOUNTAINS. PATCHY FOG MAY DEVELOP ONCE
AGAIN LATE TONIGHT INTO FRIDAY MORNING AS HIGH SURFACE MOISTURE,
COOL TEMPERATURES, CLEAR SKIES, AND LIGHT WINDS CREATE AN
ENVIRONMENT CONDUCIVE FOR FOG DEVELOPMENT.
A SHORTWAVE RIDGE WILL DEVELOP OVER THE AREA ON FRIDAY, BRINGING A
SHORT PERIOD OF QUIET AND DRY WEATHER. HOWEVER, THIS CALM WILL BE
SHORT-LIVED AS LOW PRESSURE DROPS FROM THE GULF OF ALASKA INTO THE
WEST COAST, LEADING TO SOUTHWESTERLY FLOW INTO THE FORECAST AREA.
THIS PATTERN WILL HELP MAINTAIN A DECENT MOISTURE STREAM AND ABOVE-
NORMAL PWATS, GENERALLY BETWEEN 150 AND 200 PERCENT OF NORMAL.
DISTURBANCES ALONG THIS PATTERN ALONG WITH THE MOISTURE PRESENT MORE
OPPORTUNITIES FOR PRECIPITATION AND PERIODS OF BREEZY WINDS OVER THE
WEEKEND INTO THE MIDDLE OF NEXT WEEK.
AVIATION...FOR HARRY REID...FOR THE 12Z FORECAST PACKAGE
CIGS
ARE LOWER THAN ORIGINALLY ANTICIPATED, WITH BKN BETWEEN 500 AND 1000
FEET AND OVC BETWEEN 1000 AND 2000 FEET NOW EXPECTED THROUGH THE TAF
PERIOD. PATCHY FOG EXPECTED IN THE LAS VEGAS VALLEY AROUND SUNRISE,
RESULTING IN PERSISTENT VISIBILITY REDUCTIONS UNTIL MID-MORNING.
SHOWERS IN THE VICINITY OF THE TERMINAL RETURN BETWEEN 20 AND 03Z,
WITH BEST CHANCES OF LIGHT RAIN AT THE TERMINAL OCCURRING BETWEEN 23
AND 03Z. WINDS WILL BE LIGHT AND DIURNAL.
FOR THE REST OF SOUTHERN NEVADA, NORTHWESTERN ARIZONA AND
SOUTHEASTERN CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...EXPECT
PERSISTENT LOW CLOUDS THROUGH THE TAF PERIOD, WITH BKN BETWEEN 500
AND 1000 FEET AND OVC BETWEEN 1000 AND 4000 FEET. PATCHY FOG
EXPECTED THROUGH MID-MORNING, RESULTING IN SLANTWISE VISIBILITY
REDUCTION AND TERMINAL VISIBILITY REDUCTION AT TIMES. ANOTHER ROUND
OF LIGHT SHOWERS RETURN THIS AFTERNOON AND EVENING BEFORE DRYING OUT
AFTER SUNSET. WINDS WILL BE LIGHT AND DIURNAL.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...MELTZER
AVIATION...SOULAT
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