487
FXUS65 KVEF 231623
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
930 AM PDT TUE APR 23 2019
SYNOPSIS
SOME CLOUDS WILL CONTINUE TO WRAP BACK WEST INTO
MOHAVE COUNTY AS AN AREA OF LOW PRESSURE SLOWLY MOVES EAST. HIGH
PRESSURE MOVING OVER THE REGION WILL TRANSLATE INTO WELL ABOVE
NORMAL TEMPERATURES WEDNESDAY THROUGH SATURDAY; APPROACHING DAILY
RECORDS THURSDAY AND FRIDAY. THE RIDGE WILL BE REPLACED BY A TROUGH
OF LOW PRESSURE SUNDAY AND MONDAY LEADING TO COOLING TEMPERATURES,
INCREASED WIND AND CHANCES FOR SHOWERS AND THUNDERSTORMS.
UPDATE
A QUIET WEATHER DAY IS IN STORE AS A RIDGE BUILDS IN FROM THE WEST
BEHIND AN EXITING TROUGH WHICH WILL CONTINUE TO PUSH EASTWARD ACROSS
NORTHERN MEXICO TODAY AND TONIGHT. IN BETWEEN THESE TWO SYSTEMS,
BREEZY, NORTHERLY WINDS WILL BE PRESENT TODAY; ESPECIALLY DURING THE
MORNING HOURS WITH GUSTS OF 20 TO 25 MPH. SOME CLOUD COVER AND A
COUPLE OF ISOLATED SHOWERS WILL WRAP AROUND THE BACKSIDE OF THE LOW
THIS AFTERNOON AND ARE EXPECTED TO ONLY GRAZE THE SOUTHEAST CORNER
OF MOHAVE COUNTY. A ROGUE RUMBLE OF THUNDER CAN'T BE RULED OUT WITH
THIS ACTIVITY WITH LIMITED INSTABILITY PRESENT. AN UPWARD TREND IN
TEMPS WILL BEGIN TODAY AND CONTINUE THROUGH LATE IN THE WEEK IN
RESPONSE TO THE DOMINANT RIDGE OVER THE REGION. FORECAST IS ON TRACK
AND NO SIGNIFICANT UPDATES ARE NEEDED AT THIS TIME.
DISCUSSION
THROUGH MONDAY.
UPPER LOW THAT CROSSED OVER THE SOUTHERN GREAT BASIN AND MOJAVE
DESERT THE PAST TWO DAYS WILL CONTINUE ITS SLOW EXIT ACROSS NORTHERN
SONORA MEXICO TODAY. MOHAVE COUNTY WILL LIKELY CONTINUE TO SEE SOME
CLOUDS WRAP BACK IN FROM THE EAST AT TIMES TODAY. MAY SEE A LIGHT
SHOWER OVER THE AQUARIUS MOUNTAINS OF FAR SOUTHEAST MOHAVE COUNTY
NEAR THE YAVAPAI COUNTY LINE THIS AFTERNOON. ELSEWHERE, NORTHERLY
BREEZES WILL CONTINUE WITH WARMER TEMPERATURES AS RIDGE OF HIGH
PRESSURE STARTS TO NOSE IN FROM THE WEST.
RIDGE AXIS WILL SHIFT INLAND WEDNESDAY-SATURDAY USHERING IN THE
WARMEST TEMPERATURES SEEN SO FAR IN 2019. WARMEST DAYS WILL BE
THURSDAY AND FRIDAY WITH SOME RECORDS IN JEOPARDY OF BEING TIED OR
BROKEN. UNDER THE BUBBLE OF WARM AIR, MODELS CONTINUE TO SUGGEST THE
POTENTIAL FOR ISOLATED HIGH-BASED SHOWERS OR THUNDERSTORMS ALONG THE
CREST OF THE SOUTHERN SIERRA, WHITE MOUNTAINS OF INYO COUNTY AS
WELL AS ESMERALDA COUNTY EACH DAY.
THE RIDGE WILL BE REPLACED BY A TROUGH OF LOW PRESSURE SUNDAY AND
MONDAY LEADING TO COOLING TEMPERATURES, INCREASED WIND AND CHANCES
FOR SHOWERS AND THUNDERSTORMS.
AVIATION...FOR MCCARRAN
NORTHWEST WINDS HAVE REMAINING IN PLACE
OVERNIGHT AND ARE EXPECTED TO REMAIN THROUGH THE MORNING HOURS WITH
SPEEDS AROUND 10 KTS. DURING THE EARLY AFTERNOON, WINDS ARE FORECAST
TO SHIFT MORE TO THE NORTH TO NORTHEAST WITH SPEEDS AROUND 8-10 KTS.
BY EARLY EVENING NORTHEAST WINDS ARE EXPECTED TO DIMINISH WITH
SPEEDS LESS THAN 7 KTS AND GRADUALLY BACK TO THE NORTHWEST ONCE
AGAIN, BUT WITH SPEEDS AROUND 6-7 KTS. JUST A FEW CLOUDS AROUND 10K
FEET TODAY.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...NORTHERLY WINDS ARE EXPECTED OVER MOST AREAS TODAY WITH
SPEEDS BETWEEN 8-15 KTS. STRONGEST WINDS WILL BE DOWN THE COLORADO
RIVER VALLEY WHERE WIND SPEEDS ARE EXPECTED TO BE CLOSER TO 20-30
KTS. WINDS WILL GRADUALLY DIMINISH THIS EVENING WITH MOST AREAS
SEEING WINDS 10 KTS OR LESS. FEW-SCT CLOUDS AROUND 8-10K FEET TODAY.
THERE WILL STILL BE A SLIGHT RISK OF A SHOWER OVER PORTIONS OF
NORTHWEST ARIZONA.
CLIMATE
RECORD HIGH TEMPERATURES AND YEAR SET FOR APRIL 24 -
APRIL 27.
APRIL 24 APRIL 25 APRIL 26 APRIL 27
LAS VEGAS 99/1946 96/1946 97/1996 99/2000
KINGMAN 94/1927 95/1921 94/2018 94/1927
BARSTOW-DAGGETT 99/1949 96/2018 99/1996 99/2000
BISHOP 87/1996 87/2018 90/2000 90/1949
NEEDLES 103/1949 103/2018 105/2018 106/2000
DEATH VALLEY NP 113/1946 109/1946 108/2018 110/1996
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...PIERCE
AVIATION....GORELOW
UPDATE...GUILLET
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