920  
FXUS65 KREV 202241  
AFDREV  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE RENO NV  
341 PM PDT FRI SEP 20 2019  
   
SYNOPSIS
 
 
TEMPERATURES WILL BEGIN TO WARM TODAY THROUGH SUNDAY BEFORE ANOTHER  
COLD FRONT BRINGS GUSTY WINDS, SHOWER CHANCES, AND A SLIGHT COOL  
DOWN INTO MONDAY. A WARMUP WILL OCCUR TUESDAY-THURSDAY BEFORE  
ANOTHER COOLER WEATHER SYSTEM MOVES INTO THE REGION LATE NEXT  
WEEK.  
 

 
   
SHORT TERM
 
 
THE MAIN CHANGE TO THE INHERITED FORECAST WAS TO SLIGHTLY SLOW DOWN  
THE FORWARD PROGRESSION OF THE COLD FRONT SUNDAY INTO MONDAY.  
FREEZING FOG WAS ALSO ADDED FOR THE SIERRA VALLEYS NORTH OF LAKE  
TAHOE. THE BIG WEATHER STORY IS THE VARIABLE WEATHER EXPECTED IN  
THE NEXT 7-10 DAYS.  
 
TEMPERATURES: AFTER SOME CHILLY WEATHER THIS MORNING, WE WILL BEGIN  
TO WARM UP GOING INTO THE WEEKEND. EXPECT MID TO UPPER 70S IN  
WESTERN NV AND MID-60S TO LOW 70S FOR SIERRA VALLEYS SATURDAY AND  
SUNDAY. A SLIGHT COOL DOWN WILL OCCUR MONDAY AS A WEAK COLD FRONT  
PASSES ACROSS OUR AREA. HIGHS WILL THEN WARM TO NEARLY 4-7 DEGREES  
ABOVE NORMAL BY WEDNESDAY. THIS TRANSLATES TO LOW 80S IN WESTERN NV  
AND 70S FOR SIERRA VALLEYS ON TUESDAY.  
 
WINDS: LIGHT WINDS ARE EXPECTED THIS EVENING THROUGH SATURDAY,  
BEFORE THE PRESSURE GRADIENT TIGHTENS AHEAD OF AN APPROACHING COLD  
FRONT SUNDAY. WINDS ARE FORECAST TO GUST AS HIGH AS 30 MPH FOR MOST  
AREAS SUNDAY AFTERNOON AHEAD/ALONG COLD FRONT. LOCALIZED TRAVEL AND  
RECREATION IMPACTS ARE POSSIBLE WITH THIS SYSTEM. WINDS MONDAY  
BEHIND THE FRONT WILL BE BREEZY OUT OF THE NORTH/NORTHWEST, HOWEVER  
MINIMAL IMPACTS ARE EXPECTED.  
 
PRECIPITATION: DRY CONDITIONS WILL PREVAIL SATURDAY AND MOST OF  
SUNDAY. SHOWERS ARE POSSIBLE SUNDAY AFTERNOON INTO MONDAY. BEST  
CHANCES WILL BE NORTH OF INTERSTATE 80 TO THE OREGON BORDER. SOME  
HIGHER MOUNTAIN SNOW SHOWERS ARE POSSIBLE, BUT CONFIDENCE IS LOW.  
 
-JOHNSTON  
   
LONG TERM...TUESDAY THROUGH NEXT WEEKEND
 
 
WELL, IF YOU'VE LIKED THE ROLLER COASTER OF FALL WEATHER THE LAST  
FEW WEEKS, YOU'RE GOING TO LIKE THE LONG TERM FORECAST. IF YOU  
PREFER WARMER AND DRIER WEATHER ONLY, MID WEEK IS RIGHT UP YOUR  
ALLEY...AND YOU MAY WANT TO STOP READING AT THE END OF THE NEXT  
PARAGRAPH.  
 
WARMER AND DRIER CONDITIONS ARE EXPECTED FOR THE THE MIDDLE OF NEXT  
WEEK AS HIGH PRESSURE BUILDS OVER THE EASTERN PACIFIC. TEMPERATURES  
ARE EXPECTED TO REBOUND TO THE LOW TO MID 80S IN THE VALLEYS AND MID  
70S IN THE SIERRA, ABOUT 5 DEGREES ABOVE AVERAGE.  
 
FOR THE LONG RANGE FORECAST, ENSEMBLE MODELS ARE GOOD AGREEMENT THAT  
ANOTHER TROUGH WILL MOVE INTO THE REGION DURING THE SECOND HALF OF  
NEXT WEEK, LIKELY LASTING INTO THE WEEKEND. THIS WILL BRING  
INCREASING CHANCES FOR ADDITIONAL PRECIPITATION ALONG WITH MUCH  
COLDER TEMPERATURES BACK TO THE REGION. BY NEXT WEEKEND, DAYTIME  
HIGH TEMPERATURES COULD BE BACK DOWN TO 10-15+ DEGREES BELOW NORMAL.  
-ZACH  
 

 
   
AVIATION
 
 
MOSTLY CLEAR SKIES EXPECTED FOR TONIGHT WITH AREAS OF FREEZING FOG  
IN THE SIERRA VALLEYS, INCLUDING TRK WITH LIFR CONDITIONS.  
OTHERWISE, VFR CONDITIONS CONTINUE THROUGH THE WEEKEND. WINDS WILL  
INCREASE ON SUNDAY AFTERNOON AHEAD OF ANOTHER COLD FRONT MOVING  
THROUGH THE REGION. THESE INCREASING WINDS WILL BRING SOME MOUNTAIN  
WAVE TURBULENCE AND WIND GUSTS AT THE TERMINALS UP TO 25-30KTS.  
-HOON  
 

 
   
REV WATCHES/WARNINGS/ADVISORIES
 
 
NV...NONE.  
CA...NONE.  

 
 

 
 
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT...  
HTTP://WEATHER.GOV/RENO  
 
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