949
FXUS65 KVEF 070528
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1028 PM PDT SUN JUL 6 2025
KEY MESSAGES
* TEMPERATURES WILL CONTINUE TO WARM THROUGH THE FIRST HALF OF THE
WEEK AS HIGH PRESSURE BUILDS INTO THE REGION. EXTREME HEAT
HEADLINES WILL LIKELY BE NEEDED FOR PORTIONS OF THE AREA BY MID-
WEEK.
* BREEZY WINDS AND VERY LOW RELATIVE HUMIDITIES WILL RESULT IN
INCREASED FIRE DANGER ACROSS AREAS NORTH OF THE LAS VEGAS VALLEY.
SEE THE FIRE WEATHER DISCUSSION BELOW FOR MORE DETAILS.
DISCUSSION
THROUGH NEXT WEEK.
RIDGING WILL CONTINUE TO PUSH INTO THE AREA FROM THE SOUTHEAST,
MAINTAINING OUR WARMING TREND THROUGH MID-WEEK. HEATRISK LEVELS WILL
CONTINUE TO INCREASE, AND BY WEDNESDAY, MAJOR LEVELS (LEVEL 3 OF 4)
WILL BE PRESENT IN THE COLORADO RIVER VALLEY AND LOWER ELEVATIONS OF
CENTRAL AND SOUTHERN MOHAVE COUNTY. FORECASTED TEMPERATURE VALUES
HAVE REMAINED CONSISTENT OVER THE PAST 24 HOURS. GIVEN THIS AND THE
FORECASTED VALUES, EXTREME HEAT PRODUCTS WILL LIKELY BE NEEDED FOR
THE MID-WEEK PERIOD. A SHORTWAVE PASSING NORTH OF THE AREA THROUGH
THE GREAT BASIN WILL LOWER HEIGHTS A FEW DECAMETERS BY THURSDAY AND
FRIDAY, ALLOWING TEMPERATURES TO COOL A FEW DEGREES. HOWEVER,
RIDGING IS EXPECTED TO RETURN BY THE WEEKEND, RESULTING IN
INCREASING TEMPERATURES ONCE AGAIN.
AVIATION...FOR HARRY REID...FOR THE 06Z FORECAST PACKAGE
EXPECT
SOUTH TO SOUTHWEST WINDS OVERNIGHT, SHIFTING TO LIGHT EASTERLY
MONDAY MORNING. WINDS SHOULD BECOME SOUTHERLY IN THE AFTERNOON WITH
GUSTS OF 15 TO 20 KNOTS, ALTHOUGH THE TIMING OF THE WIND SHIFT IS
UNCERTAIN. AROUND SUNSET, WINDS SHOULD GO BACK TO THE TYPICAL SOUTH
TO SOUTHWEST DRAINAGE DIRECTION. VFR CONDITIONS UNDER MOSTLY CLEAR
SKIES. TEMPERATURES WILL EXCEED 100 DEGREES BETWEEN 20Z AND 04Z.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...EXPECT BREEZY SOUTH TO
SOUTHWEST WINDS AT MOST SITES ON MONDAY, WITH THE STRONGEST GUSTS OF
30 TO 40 KNOTS OVER THE SIERRA CREST AND THE MOUNTAINS OF DEATH
VALLEY, DECREASING AROUND SUNSET. VFR CONDITIONS UNDER MAINLY CLEAR
SKIES.
FIRE WEATHER
LOW PRESSURE OFF THE SOUTHERN CALIFORNIA COAST WILL
RESULT IN INCREASED SOUTH TO SOUTHWEST WINDS OVER FAR WESTERN NEVADA
AND EASTERN CALIFORNIA TOMORROW, AND TO A LESSER EXTENT ON TUESDAY.
NO INCREASE IN MOISTURE WILL OCCUR WITH THIS LOW, AND AFTERNOON RH
VALUES WILL REMAIN IN THE SINGLE DIGITS ACROSS MUCH OF THE AREA.
THE STRONGEST WINDS ARE FORECAST OVER ESMERALDA AND CENTRAL NYE
COUNTIES. GIVEN THE CONDITIONS MENTIONED ABOVE AND THE FACT THAT
FUEL MOISTURE LEVELS HAVE REACHED CRITICAL LEVELS, THE FIRE WEATHER
WATCH HAS BEEN UPGRADED TO A RED FLAG WARNING FOR ZONE 460,
EFFECTIVE FROM 11 AM TO 8 PM MONDAY. WINDS WILL ALSO BE CLOSE TO RED
FLAG CONDITIONS ON TUESDAY.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...PLANZ
AVIATION...MORGAN
FIRE WEATHER...PLANZ/MORGAN
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