006
FXUS65 KVEF 052141
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
141 PM PST WED NOV 5 2025
KEY MESSAGES
* A PASSING SYSTEM BRINGS INCREASED WINDS TO THE REGION TODAY, ALONG
WITH POTENTIAL FOR LIGHT PRECIPITATION TO THE EASTERN SIERRA.
* RELATIVELY CALM AND DRY CONDITIONS ARE EXPECTED STARTING
TOMORROW ALONG WITH ABOVE NORMAL TEMPERATURES.
DISCUSSION
THROUGH TUESDAY.
AN UPPER LEVEL TROUGH IS MOVING THROUGH THE WESTERN UNITED STATES
AND THE PRIMARY IMPACT TO THE FORECAST AREA IS INCREASED SOUTHERLY
TO SOUTHWESTERLY WINDS. WIND ADVISORIES REMAIN IN EFFECT FOR THE
EASTERN SIERRA AND OWENS VALLEY UNTIL 4 AM PST TOMORROW MORNING.
AUTOMATED SENSORS HAVE REPORTED GUSTS IN THE 30 TO 45 MPH RANGE IN
THE ADVISORY AREA SO FAR TODAY AND WINDS ARE EXPECTED TO INCREASE
INTO THE EVENING AS THE SHORTWAVE AXIS MOVES THROUGH. THERE REMAINS
A 25 TO 35 PERCENT CHANCE OF DOWNSLOPE WINDS IN EXCESS OF 40 MPH
THROUGH THE AFTERNOON AND EVENING ALONG US 395, PARTICULARLY IN
AREAS SOUTH OF OLANCHA. SENSORS ALSO REPORTED GUSTS BETWEEN 35 AND
45 MPH IN THE NEVADA NATIONAL SECURITY SITE IN CENTRAL NYE COUNTY.
HOWEVER, MODELS SHOW SOUTHERLY 850 MB WINDS WEAKENING THROUGH THE
REST OF THE AFTERNOON AND SURFACE WINDS ARE EXPECTED TO DECREASE IN
RESPONSE. CONSIDERING THIS TREND ALONG WITH THE LIMITED SPATIAL
EXTEND OF THESE WINDS, A WIND ADVISORY EXPANSION DOES NOT APPEAR
NECESSARY. CHANCES FOR PRECIPITATION IN THE SIERRA HAVE DECREASED TO
15 PERCENT OR LESS AND ANY TOTALS SHOULD BE LIGHT.
COOL AIR ASSOCIATED WITH THIS SYSTEM WILL BRING TEMPERATURES DOWN A
FEW DEGREES AREAWIDE, BUT WILL STILL REMAIN 5 TO 10 DEGREES ABOVE
NORMAL THROUGH THE FIRST HALF OF NEXT WEEK. FOR LAS VEGAS, THIS
MEANS HIGHS IN THE MID TO UPPER 70S AND LOWS IN THE MID TO UPPER
50S. PRECIPITATION IS NOT EXPECTED THROUGH TUESDAY.
AVIATION...FOR HARRY REID...FOR THE 18Z FORECAST PACKAGE
WINDS
BRIEFLY SHIFT EAST TO SOUTHEAST AROUND 8 KNOTS BEFORE TURNING TO THE
SOUTH AND EVENTUALLY THE SOUTHWEST THIS AFTERNOON. SUSTAINED WINDS
WILL INCREASE TO 10 TO 15 KNOTS WITH GUSTS OF AROUND 20 TO 25 KNOTS
THROUGH THE AFTERNOON AND EVENING. WINDS WEAKEN BUT REMAIN OVER 10
KNOTS THROUGH MOST OF THE NIGHT. LIGHTER WINDS RETURN TOMORROW
MORNING. VFR CONDITIONS WILL PREVAIL, WITH FEW-SCT CLOUDS AROUND
25KFT AGL AND FEW MID-LEVEL CLOUDS AROUND 15KFT AGL.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...WINDS INCREASE OUT OF
THE SOUTH TO SOUTHWEST ACROSS MOST OF THE AREA THIS AFTERNOON, WITH
GUSTS GENERALLY BETWEEN 20 AND 25 KNOTS. ONE EXCEPTION IS KBIH,
WHERE WINDS WILL REMAIN SOUTHEAST BEFORE FLIPPING TO THE SOUTHWEST
IN THE MID AFTERNOON. THERE IS A LOW (10-20%) CHANCE FOR WESTERLY
DOWNSLOPE WINDS OF AROUND 30 KNOTS REACHING THE TERMINAL LATE IN THE
AFTERNOON. WITH THE EXCEPTION OF THE WESTERN MOJAVE DESERT, WHERE
GUSTY WESTERLY WINDS WILL CONTINUE INTO THE OVERNIGHT PERIOD, WIND
GUSTS ACROSS THE AREA WILL DECREASE IN THE EVENING. VFR CONDITIONS
PREVAIL, WITH MID AND HIGH CLOUDS AROUND BETWEEN 15-25KFT AGL
OVERSPREADING THE AREA.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION/AVIATION...MELTZER
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