473
FXUS65 KVEF 151730
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1030 AM PDT MON JUL 15 2019
SYNOPSIS
DRY AND BREEZY CONDITIONS CAN BE EXPECTED FOR MUCH OF THE
UPCOMING WEEK. TEMPERATURES WILL TREND DOWNWARD TOWARD SEASONAL
NORMALS BY MID-WEEK WHERE THEY WILL REMAIN THROUGH NEXT WEEKEND.
UPDATE
STILL EXPECTING HOT TEMPERATURES THIS AFTERNOON SIMILAR
TO THE LAST FEW DAYS. NOT ANTICIPATING ANY STORMS THIS AFTERNOON
AS DRY SOUTHWEST FLOW WILL SWEEP THE MEAGER MID-LEVEL MOISTURE
OUT OF OUR LOCAL AREA TODAY. THE UPPER LEVEL TROUGH RESPONSIBLE
FOR SWEEPING MOISTURE EAST, WILL NUDGE TEMPERATURES DOWN TOMORROW
AND ALLOW FOR NEAR NORMAL TEMPERATURES TO LAST THROUGH THE
WEEKEND. THE TROUGH AXIS WILL DIG INTO THE SOUTHERN GREAT BASIN
REGION TODAY-TOMORROW, RESULTING IN BREEZY TO GUSTY WINDS. MORE
WIDESPREAD GUSTINESS IS EXPECTED TOMORROW AFTERNOON WHICH WILL
CREATE ELEVATED FIRE WEATHER CONDITIONS. CURRENT FORECAST LOOKS ON
TRACK AND NO UPDATES WERE NECESSARY THIS MORNING.
PREV DISCUSSION
/ISSUED AT 352 AM PDT MON JUL 15 2019/
DISCUSSION
TODAY THROUGH SUNDAY.
HIGH PRESSURE LOCATED OVER THE FOUR CORNERS REGION WILL SHIFT SOUTH
AND EAST AS A SHORTWAVE TROUGH PUSHES OVER THE WESTERN U.S. TODAY
AND TOMORROW. FOLLOWING THE PASSAGE OF THIS FEATURE; A WEAK,
BROAD TROUGH WILL REMAIN SITUATED OVER THE GREAT BASIN FOR THE
REMAINDER OF THE WEEK. THIS UPCOMING WEATHER PATTERN WILL BE LESS
FAVORABLE FOR ANY MOISTURE ADVECTION INTO THE LOCAL AREA UNDER
SOUTHWESTERLY FLOW AND WILL LEAD TO AN EXTENDED PERIOD OF DRY
CONDITIONS. THIS AFTERNOON, THERE IS POTENTIAL FOR A STRAY SHOWER
OR TWO OVER EASTERN MOHAVE COUNTY WHERE ENOUGH RESIDUAL MOISTURE
WILL BE PRESENT INTO THE AFTERNOON HOURS. AS THE AFOREMENTIONED
SHORTWAVE PASSES ACROSS THE LOCAL AREA OVER THE NEXT COUPLE OF
DAYS WINDS WILL INCREASE AS SFC PRESSURE GRADIENT TIGHTENS.
TUESDAY LOOKS TO SEE THE MOST WIDESPREAD WINDS OF THE NEXT THREE
DAYS WITH SOUTHWEST WINDS GUSTING UP TO 30 TO 40 MPH POSSIBLE.
THESE WINDS COMBINED WITH DRY SURFACE CONDITIONS AND CURED FUELS
WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS FOR PORTIONS OF THE
AREA. THE FIRE WEATHER WATCH REMAINS IN PLACE FOR LINCOLN,
MOHAVE, AND MOST OF CLARK COUNTIES FOR TUESDAY AFTERNOON AS A
RESULT. BREEZY CONDITIONS WILL CONTINUE EACH AFTERNOON FOR THE
REMAINDER OF THE WEEK WITH GUSTS GENERALLY IN THE 20 TO 30 MPH
RANGE. WAVE HEIGHTS OF 1 TO 2 FEET WILL ALSO BE A RESULT OF THE
WINDS WHICH COULD CREATE POOR BOATING CONDITIONS ACROSS PORTIONS
OF THE AREA LAKES. TEMPERATURES WILL RESPOND TO THE LOWERING
HEIGHTS AND ARE EXPECTED TO COME BACK DOWN TO NEAR SEASONAL
AVERAGES BY MID-WEEK.
THE NEXT POSSIBILITY OF AN INFLUX OF LOW LEVEL MOISTURE LOOKS TO BE
EARLY TO MIDDLE OF NEXT WEEK AS THE RIDGE BUILDS BACK NORTHWARD.
THIS WILL BE HIGHLY DEPENDENT ON THE PLACEMENT OF THE RIDGE BUT
GIVEN THE RIGHT POSITIONING THERE COULD BE MOISTURE-LADEN
SOUTHERLY FLOW SUPPORTIVE OF SEASONAL SHOWERS AND STORMS ACROSS
PORTIONS OF THE AREA.
FIRE WEATHER
DRY, SOUTHWESTERLY FLOW IS EXPECTED FOR MUCH OF THE UPCOMING WEEK
AS THE RIDGE SHIFTS SOUTHWARD AWAY FROM THE FOUR CORNERS REGION
AND A WEAK, BROAD TROUGH SITUATES OVER MUCH OF THE WESTERN U.S. A
SHORTWAVE TROUGH WILL APPROACH AND PASS MONDAY THROUGH WEDNESDAY
BRINGING BREEZIER CONDITIONS TO THE LOCAL AREA. TUESDAY LOOKS TO
BE THE MORE WIDESPREAD OF THE DAYS WITH GUSTS UP TO 30 TO 40 MPH.
THE FIRE WEATHER WATCH REMAINS IN EFFECT FOR TUESDAY FOR LINCOLN,
MOHAVE, AND PORTIONS OF CLARK COUNTIES. WEDNESDAY COULD SEE
SIMILAR WIND STRENGTHS OVER MOHAVE COUNTY WHICH MAY WARRANT AN
EXTENSION OF ANY FIRE WEATHER PRODUCTS FOR THAT AREA. OTHERWISE,
BREEZY, SOUTHWEST WINDS AND CRITICAL RH VALUES CONTINUE EACH
AFTERNOON THROUGH THE END OF THE WEEK WITH GUSTS GENERALLY IN THE
20 TO 25 MPH RANGE.
AVIATION...FOR MCCARRAN
INITIALLY SOUTHEAST WINDS WILL SHIFT TO
THE SOUTHWEST THIS AFTERNOON AND BECOME GUSTY TO ABOUT 25 KTS AT
TIMES. ONCE THE SHIFT TO SOUTHWEST OCCURS, VERY LITTLE WIND
DIRECTION CHANGE IS EXPECTED THROUGH THE EVENING AND INTO THE
OVERNIGHT HOURS. WINDS WILL SUBSIDE BY EARLY TOMORROW MORNING BUT
INCREASE AGAIN TOMORROW AFTERNOON OUT OF THE SOUTHWEST, GUSTING AS
HIGH AS 30 KTS AT TIMES. OTHERWISE, NO IMPACTS EXPECTED WITH P6SM
SKC.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...AFTERNOON BREEZY CONDITIONS ARE EXPECTED TODAY AND
AGAIN TOMORROW AFTERNOON FOR VALLEY SITES. KBIH IMPACTS WILL BE
MINIMAL WITH DIURNAL TRENDS EXPECTED. KDAG WEST WINDS WILL INCREASE
LATE THIS AFTERNOON AND EARLY EVENING STAYING AT OR ABOVE 15 KTS
THROUGH THE OVERNIGHT PERIOD. KIFP/KEED WILL SEE MINIMAL IMPACTS BUT
WIND GUSTS ARE EXPECTED TOMORROW AFTERNOON, JUST OUTSIDE THE CURRENT
TAF PERIOD.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
UPDATE...KRYSTON
DISCUSSION/FIRE WEATHER...GUILLET
AVIATION....TB3
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