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  
 
FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:  
 
HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER  
 
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